5wleddriver

anonymous@undisclosed.example.com (Anonymous) — Sat, 13 Jun 2020 10:53:31 +0000

LEDs

dedome Luminus_SST-40-W_Datasheet-1499204 SST40 strolux S2

https://www.mouser.com/ProductDetail/Luminus-Devices/SST-40-WDS-F50-N3501
luminus_sst-40-w_datasheet-1499204_superspace.pdf
https://www.aliexpress.com/item/4000589514066.html
https://www.aliexpress.com/item/4000289240037.html

http://www.mtnelectronics.com/index.php?route=product/product&product_id=663

https://lygte-info.dk/info/HowDoITestADriver%20UK.html

xv2002

https://lygte-info.dk/review/DriverTest%20Anti-reverse%20Driver%20Board%20AX2002%20UK.html

ET+7135
driver cree


led
xree
flahslight
ax2002

https://www.mouser.com/ProductDetail/Luminus-Devices/SST-40-WDS-F50-N3501?qs=byeeYqUIh0PGvK6FJWZRAw%3D%3D

http://budgetlightforum.com/node/54947

http://budgetlightforum.com/node/55121

current limit

what are this chips? XM045 ?

ai

anonymous@undisclosed.example.com (Anonymous) — Sat, 03 Feb 2024 11:15:45 +0000

AI

for some reason i just backed a kickstarter (first one, i think), its an AI on a chip thing, called HuskyLens. not bad for 25$

digging a bit, after the quick click i actually read the description and found its core is a Kendryte K210 IC (github).
and of course there is already an aliexpress dev board going.

datasets

awesome-public-datasets > list of a topic-centric public data sources in high quality. They are collected and tidied from blogs, answers, and user responses.

List of computer vision pre-trained model

https://data.vision.ee.ethz.ch/cvl/DIV2K/

https://www.reddit.com/r/datasets/

mi

kera_denisa_reshef_sourek_petr_krainski_mateusz_reshef_ya_-_acm_press_extended_abstracts_of_the_2019_chi_conference_-_glasgow_scotland_uk_2019.05.04-2019.05.04_extended_abstracts_of_2019_acm_press_10.pdf

euact-20230516res90302.pdf

mydlarz_euronoise_2015.pdf

anyma_visit

anonymous@undisclosed.example.com (Anonymous) — Tue, 08 Oct 2019 20:04:44 +0000

apps

anonymous@undisclosed.example.com (Anonymous) — Mon, 26 Nov 2018 02:39:30 +0000

collection of apps i use daily

windows

pyWinContext - add stuff to your right click (windows) - video
shareX (win/linux)
rapidEE - edit your PATH (win)
spacesniffer - visual space (win)
chocolaty - package manager for windows command line
np++ - notepad/IDE
vcode - visual code editor
ditto - clipboard manager
everything - search for windows , fast!

linux

screencloud - screenshot to imgur
tldr - the better man page

disregard

attiny

anonymous@undisclosed.example.com (Anonymous) — Wed, 01 Jan 2020 20:54:52 +0000

attinyX5 Family in all their gory details

pinouts

ATtinyx5

     ATTiny pinout
                         +-\/-+
                  Reset 1|    |8  VCC
    (pin3) in 0 A3  PB3 2|    |7  PB2 (pin2) out mixed / SCK
    (pin4) in 1 A2  PB4 3|    |6  PB1 (pin1) out 1 / MISO
                    GND 4|    |5  PB0 (pin0) out 0 / MOSI
                         ------

ATtiny25-ATtiny45-ATtiny85_Datasheet

USBASP V2.0

found here

drivers, linux “just works”:, windows is a mess

CORE

spencerCOre note his warning
When using a chip for the first time, or after changing the clock speed or BOD settings, you must do “burn bootloader” to set the fuses, even if you are not using the chip with a bootloader

Fuses

cd /home/yair/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino14/bin
avrdude -C../etc/avrdude.conf -v -v -v -v -pattiny45 -cusbasp

successful fuse burn

/home/yair/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino14/bin/avrdude -C/home/yair/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino14/etc/avrdude.conf -v -v -v -v -pattiny45 -cusbasp 

avrdude: Version 6.3-20171130
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "/home/yair/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino14/etc/avrdude.conf"
         User configuration file is "/home/yair/.avrduderc"

         Using Port                    : usb
         Using Programmer              : usbasp
avrdude: usbasp_open("usb")
avrdude: seen device from vendor ->www.fischl.de<-
avrdude: seen product ->USBasp<-
         AVR Part                      : ATtiny45
         Chip Erase delay              : 4500 us
         PAGEL                         : P00
         BS2                           : P00
         RESET disposition             : possible i/o
         RETRY pulse                   : SCK
         serial program mode           : yes
         parallel program mode         : yes
         Timeout                       : 200
         StabDelay                     : 100
         CmdexeDelay                   : 25
         SyncLoops                     : 32
         ByteDelay                     : 0
         PollIndex                     : 3
         PollValue                     : 0x53
         Memory Detail                 :

                                  Block Poll               Page                       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           eeprom        65     6     4    0 no        256    4      0  4000  4500 0xff 0xff
                                  Block Poll               Page                       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           flash         65     6    32    0 yes      4096   64     64  4500  4500 0xff 0xff
                                  Block Poll               Page                       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           signature      0     0     0    0 no          3    0      0     0     0 0x00 0x00
                                  Block Poll               Page                       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           lock           0     0     0    0 no          1    0      0  9000  9000 0x00 0x00
                                  Block Poll               Page                       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           lfuse          0     0     0    0 no          1    0      0  9000  9000 0x00 0x00
                                  Block Poll               Page                       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           hfuse          0     0     0    0 no          1    0      0  9000  9000 0x00 0x00
                                  Block Poll               Page                       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           efuse          0     0     0    0 no          1    0      0  9000  9000 0x00 0x00
                                  Block Poll               Page                       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           calibration    0     0     0    0 no          1    0      0     0     0 0x00 0x00

         Programmer Type : usbasp
         Description     : USBasp, http://www.fischl.de/usbasp/

avrdude: usbasp_initialize()
avrdude: usbasp_transmit("USBASP_FUNC_GETCAPABILITIES", 0x00, 0x00, 0x00, 0x00)
avrdude: usbasp_spi_set_sck_period(0)
avrdude: auto set sck period (because given equals null)
avrdude: usbasp_transmit("USBASP_FUNC_SETISPSCK", 0x00, 0x00, 0x00, 0x00)
avrdude: warning: cannot set sck period. please check for usbasp firmware update.
avrdude: usbasp_transmit("USBASP_FUNC_CONNECT", 0x00, 0x00, 0x00, 0x00)
avrdude: usbasp_program_enable()
avrdude: usbasp_transmit("USBASP_FUNC_ENABLEPROG", 0x00, 0x00, 0x00, 0x00)
         <= [00] 
avrdude: AVR device initialized and ready to accept instructions

Reading | avrdude: usbasp_spi_cmd(0x30, 0x00, 0x00, 0x00)...
avrdude: usbasp_transmit("USBASP_FUNC_TRANSMIT", 0x30, 0x00, 0x00, 0x00)
         <= [00] [30] [00] [1e] 
avrdude: usbasp_spi_cmd() => 0x00, 0x30, 0x00, 0x1e
avrdude: usbasp_spi_cmd(0x30, 0x00, 0x01, 0x00)...
avrdude: usbasp_transmit("USBASP_FUNC_TRANSMIT", 0x30, 0x00, 0x01, 0x00)
         <= [00] [30] [00] [92] 
avrdude: usbasp_spi_cmd() => 0x00, 0x30, 0x00, 0x92
################avrdude: usbasp_spi_cmd(0x30, 0x00, 0x02, 0x00)...
avrdude: usbasp_transmit("USBASP_FUNC_TRANSMIT", 0x30, 0x00, 0x02, 0x00)
         <= [00] [30] [00] [06] 
avrdude: usbasp_spi_cmd() => 0x00, 0x30, 0x00, 0x06
################################## | 100% 0.00s

avrdude: Device signature = 0x1e9206 (probably t45)
avrdude: usbasp_close()
avrdude: usbasp_transmit("USBASP_FUNC_DISCONNECT", 0x00, 0x00, 0x00, 0x00)

avrdude done.  Thank you.

System Clock Prescaler

goal:to control prescaler

in mindfuckHS code original author has this to say about his clock configuration

/*
Timer 1 is used in this case.
   the prescaler is ck1  /2 and the ocr1 is 60
   see   // see http://www.atmel.com/Images/atmel-2586-avr-8-bit-microcontroller-attiny25-attiny45-attiny85_datasheet.pdf
   See table 13-5
   CS13, CS12, CS11, CS10 = [ 0, 0, 1, 0] is prescaler/2
                  ------
*/

and

// the setup function runs once when you press reset or power the board
void setup() {
 
  DDRB = B00000111;  //could use this
 
  // initialize timer1
  noInterrupts();           // disable all interrupts
 
  TCCR1 = 0;                  //stop the timer
  TCNT1 = 0;                  //zero the timer
 
  OCR1A = 200;     //50           //set the compare value
  OCR1C = 200;       //50         //set the compare value  ??? needed
 
  TIMSK = _BV(OCIE1A);        //interrupt on Compare Match A
 
  TCCR1 = _BV(CTC1) | _BV(CS11); // Start timer, ctc mode, prescaler clk/2
 
  interrupts();             // enable all interrupts
}

conf for atiny45/85

#------------------------------------------------------------
# ATtiny45
#------------------------------------------------------------

part
     id            = "t45";
     desc          = "ATtiny45";
     has_debugwire = yes;
     flash_instr   = 0xB4, 0x02, 0x12;
     eeprom_instr  = 0xBB, 0xFF, 0xBB, 0xEE, 0xBB, 0xCC, 0xB2, 0x0D,
	             0xBC, 0x02, 0xB4, 0x02, 0xBA, 0x0D, 0xBB, 0xBC,
	             0x99, 0xE1, 0xBB, 0xAC;
     stk500_devcode   = 0x14;
##  avr910_devcode   = ?;
##  Try the AT90S2313 devcode:
     avr910_devcode   = 0x20;
     signature        = 0x1e 0x92 0x06;
     reset            = io;
     chip_erase_delay = 4500;

     pgm_enable       = "1 0 1 0  1 1 0 0    0 1 0 1  0 0 1 1",
                        "x x x x  x x x x    x x x x  x x x x";

     chip_erase       = "1 0 1 0  1 1 0 0    1 0 0 x  x x x x",
                        "x x x x  x x x x    x x x x  x x x x";

    timeout		= 200;
    stabdelay		= 100;
    cmdexedelay		= 25;
    synchloops		= 32;
    bytedelay		= 0;
    pollindex		= 3;
    pollvalue		= 0x53;
    predelay		= 1;
    postdelay		= 1;
    pollmethod		= 1;

    hvsp_controlstack     =
	0x4C, 0x0C, 0x1C, 0x2C, 0x3C, 0x64, 0x74, 0x66,
        0x68, 0x78, 0x68, 0x68, 0x7A, 0x6A, 0x68, 0x78,
        0x78, 0x7D, 0x6D, 0x0C, 0x80, 0x40, 0x20, 0x10,
        0x11, 0x08, 0x04, 0x02, 0x03, 0x08, 0x04, 0x00;
    hventerstabdelay    = 100;
    progmodedelay       = 0;
    hvspcmdexedelay     = 0;
    synchcycles         = 6;
    latchcycles         = 1;
    togglevtg           = 1;
    poweroffdelay       = 25;
    resetdelayms        = 1;
    resetdelayus        = 0;
    hvleavestabdelay    = 100;
    resetdelay          = 25;
    chiperasepolltimeout = 40;
    chiperasetime       = 0;
    programfusepolltimeout = 25;
    programlockpolltimeout = 25;

    ocdrev              = 1;

     memory "eeprom"
         size            = 256;
         page_size       = 4;
         min_write_delay = 4000;
         max_write_delay = 4500;
         readback_p1     = 0xff;
         readback_p2     = 0xff;
         read            = "1  0  1  0   0  0  0  0    0 0 0 x  x x x x",
                           "a7 a6 a5 a4  a3 a2 a1 a0   o o o o  o o o o";

         write           = "1  1  0  0   0  0  0  0    0 0 0 x  x x x x",
                           "a7 a6 a5 a4  a3 a2 a1 a0   i i i i  i i i i";

	loadpage_lo	= "  1   1   0   0      0   0   0   1",
			  "  0   0   0   0      0   0   0   0",
			  "  0   0   0   0      0   0  a1  a0",
			  "  i   i   i   i      i   i   i   i";

	writepage	= "  1   1   0   0      0   0   1   0",
			  "  0   0   x   x      x   x   x   x",
			  " a7  a6  a5  a4     a3  a2   0   0",
			  "  x   x   x   x      x   x   x   x";

	mode		= 0x41;
	delay		= 6;
	blocksize	= 4;
	readsize	= 256;
       ;
     memory "flash"
         paged           = yes;
         size            = 4096;
         page_size       = 64;
         num_pages       = 64;
         min_write_delay = 4500;
         max_write_delay = 4500;
         readback_p1     = 0xff;
         readback_p2     = 0xff;
         read_lo         = "  0   0   1   0    0   0   0   0",
                           "  0   0   0   0    0  a10 a9  a8",
                           " a7  a6  a5  a4   a3  a2  a1  a0",
                           "  o   o   o   o    o   o   o   o";

         read_hi         = "  0   0   1   0    1   0   0   0",
                           "  0   0   0   0    0  a10 a9  a8",
                           " a7  a6  a5  a4   a3  a2  a1  a0",
                           "  o   o   o   o    o   o   o   o";

         loadpage_lo     = "  0   1   0   0    0   0   0   0",
                           "  0   0   0   x    x   x   x   x",
                           "  x   x   x  a4   a3  a2  a1  a0",
                           "  i   i   i   i    i   i   i   i";

         loadpage_hi     = "  0   1   0   0    1   0   0   0",
                           "  0   0   0   x    x   x   x   x",
                           "  x   x   x  a4   a3  a2  a1  a0",
                           "  i   i   i   i    i   i   i   i";

         writepage       = "  0  1  0  0   1  1  0  0",
                           "  0  0  0  0   0 a10 a9 a8",
                           " a7 a6 a5  x   x  x  x  x",
                           "  x  x  x  x   x  x  x  x";

	mode		= 0x41;
	delay		= 6;
	blocksize	= 32;
	readsize	= 256;
       ;
#   ATtiny45 has Signature Bytes: 0x1E 0x92 0x08. (Data sheet 2586C-AVR-06/05 (doc2586.pdf) indicates otherwise!)
     memory "signature"
         size            = 3;
         read            = "0  0  1  1   0  0  0  0   0  0  0  x   x  x  x  x",
                           "x  x  x  x   x  x a1 a0   o  o  o  o   o  o  o  o";
       ;
     memory "lock"
         size            = 1;
         write           = "1 0 1 0  1 1 0 0  1 1 1 x  x x x x",
                           "x x x x  x x x x  1 1 i i  i i i i";
         read            = "0 1 0 1  1 0 0 0  0 0 0 0  0 0 0 0",
                           "0 0 0 0  0 0 0 0  o o o o  o o o o";
        min_write_delay = 9000;
        max_write_delay = 9000;
       ;

     memory "lfuse"
         size            = 1;
         write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 0 0 0",
                           "x x x x  x x x x  i i i i  i i i i";

         read            = "0 1 0 1  0 0 0 0  0 0 0 0  0 0 0 0",
                           "x x x x  x x x x  o o o o  o o o o";
        min_write_delay = 9000;
        max_write_delay = 9000;
       ;

     memory "hfuse"
         size            = 1;
         write           = "1 0 1 0  1 1 0 0  1 0 1 0  1 0 0 0",
                           "x x x x  x x x x  i i i i  i i i i";

         read            = "0 1 0 1  1 0 0 0  0 0 0 0  1 0 0 0",
                           "x x x x  x x x x  o o o o  o o o o";
        min_write_delay = 9000;
        max_write_delay = 9000;
       ;

     memory "efuse"
         size            = 1;
         write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 1 0 0",
                           "x x x x  x x x x  x x x x  x x x i";

         read            = "0 1 0 1  0 0 0 0  0 0 0 0  1 0 0 0",
                           "x x x x  x x x x  o o o o  o o o o";
        min_write_delay = 9000;
        max_write_delay = 9000;
     ;

     memory "calibration"
         size            = 1;
         read            = "0  0  1  1   1  0  0  0    0 0 0 x  x x x x",
                           "0  0  0  0   0  0  0  a0   o o o o  o o o o";
     ;
  ;

#------------------------------------------------------------
# ATtiny85
#------------------------------------------------------------

part
     id            = "t85";
     desc          = "ATtiny85";
     has_debugwire = yes;
     flash_instr   = 0xB4, 0x02, 0x12;
     eeprom_instr  = 0xBB, 0xFF, 0xBB, 0xEE, 0xBB, 0xCC, 0xB2, 0x0D,
	             0xBC, 0x02, 0xB4, 0x02, 0xBA, 0x0D, 0xBB, 0xBC,
	             0x99, 0xE1, 0xBB, 0xAC;
## no STK500 devcode in XML file, use the ATtiny45 one
     stk500_devcode   = 0x14;
##  avr910_devcode   = ?;
##  Try the AT90S2313 devcode:
     avr910_devcode   = 0x20;
     signature        = 0x1e 0x93 0x0b;
     reset            = io;
     chip_erase_delay = 400000;

     pgm_enable       = "1 0 1 0  1 1 0 0    0 1 0 1  0 0 1 1",
                        "x x x x  x x x x    x x x x  x x x x";

     chip_erase       = "1 0 1 0  1 1 0 0    1 0 0 x  x x x x",
                        "x x x x  x x x x    x x x x  x x x x";

    timeout		= 200;
    stabdelay		= 100;
    cmdexedelay		= 25;
    synchloops		= 32;
    bytedelay		= 0;
    pollindex		= 3;
    pollvalue		= 0x53;
    predelay		= 1;
    postdelay		= 1;
    pollmethod		= 1;

    hvsp_controlstack   =
        0x4C, 0x0C, 0x1C, 0x2C, 0x3C, 0x64, 0x74, 0x66,
        0x68, 0x78, 0x68, 0x68, 0x7A, 0x6A, 0x68, 0x78,
        0x78, 0x7D, 0x6D, 0x0C, 0x80, 0x40, 0x20, 0x10,
        0x11, 0x08, 0x04, 0x02, 0x03, 0x08, 0x04, 0x00;
    hventerstabdelay    = 100;
    hvspcmdexedelay     = 0;
    synchcycles         = 6;
    latchcycles         = 1;
    togglevtg           = 1;
    poweroffdelay       = 25;
    resetdelayms        = 1;
    resetdelayus        = 0;
    hvleavestabdelay    = 100;
    resetdelay          = 25;
    chiperasepolltimeout = 40;
    chiperasetime       = 0;
    programfusepolltimeout = 25;
    programlockpolltimeout = 25;

    ocdrev              = 1;

     memory "eeprom"
         size            = 512;
        paged           = no;
        page_size       = 4;
         min_write_delay = 4000;
         max_write_delay = 4500;
         readback_p1     = 0xff;
         readback_p2     = 0xff;
         read            = "1  0  1  0   0  0  0  0    0 0 0 x  x x x a8",
                           "a7 a6 a5 a4  a3 a2 a1 a0   o o o o  o o o o";

         write           = "1  1  0  0   0  0  0  0    0 0 0 x  x x x a8",
                           "a7 a6 a5 a4  a3 a2 a1 a0   i i i i  i i i i";

	loadpage_lo	= "  1   1   0   0      0   0   0   1",
			  "  0   0   0   0      0   0   0   0",
			  "  0   0   0   0      0   0  a1  a0",
			  "  i   i   i   i      i   i   i   i";

	writepage	= "  1   1   0   0      0   0   1   0",
			  "  0   0   x   x      x   x   x  a8",
			  " a7  a6  a5  a4     a3  a2   0   0",
			  "  x   x   x   x      x   x   x   x";

	mode		= 0x41;
	delay		= 12;
	blocksize	= 4;
	readsize	= 256;
       ;
     memory "flash"
         paged           = yes;
         size            = 8192;
         page_size       = 64;
         num_pages       = 128;
         min_write_delay = 30000;
         max_write_delay = 30000;
         readback_p1     = 0xff;
         readback_p2     = 0xff;
         read_lo         = "  0   0   1   0    0   0   0   0",
                           "  0   0   0   0  a11 a10  a9  a8",
                           " a7  a6  a5  a4   a3  a2  a1  a0",
                           "  o   o   o   o    o   o   o   o";

         read_hi         = "  0   0   1   0    1   0   0   0",
                           "  0   0   0   0  a11 a10  a9  a8",
                           " a7  a6  a5  a4   a3  a2  a1  a0",
                           "  o   o   o   o    o   o   o   o";

         loadpage_lo     = "  0   1   0   0    0   0   0   0",
                           "  0   0   0   x    x   x   x   x",
                           "  x   x   x  a4   a3  a2  a1  a0",
                           "  i   i   i   i    i   i   i   i";

         loadpage_hi     = "  0   1   0   0    1   0   0   0",
                           "  0   0   0   x    x   x   x   x",
                           "  x   x   x  a4   a3  a2  a1  a0",
                           "  i   i   i   i    i   i   i   i";

         writepage       = "  0  1  0  0   1   1   0  0",
                           "  0  0  0  0  a11 a10 a9 a8",
                           " a7 a6 a5  x   x  x  x  x",
                           "  x  x  x  x   x  x  x  x";

	mode		= 0x41;
	delay		= 6;
	blocksize	= 32;
	readsize	= 256;
       ;
#   ATtiny85 has Signature Bytes: 0x1E 0x93 0x08.
     memory "signature"
         size            = 3;
         read            = "0  0  1  1   0  0  0  0   0  0  0  x   x  x  x  x",
                           "x  x  x  x   x  x a1 a0   o  o  o  o   o  o  o  o";
       ;
     memory "lock"
         size            = 1;
         write           = "1 0 1 0  1 1 0 0  1 1 1 x  x x x x",
                           "x x x x  x x x x  1 1 i i  i i i i";
         read            = "0 1 0 1  1 0 0 0  0 0 0 0  0 0 0 0",
                           "0 0 0 0  0 0 0 0  o o o o  o o o o";
        min_write_delay = 9000;
        max_write_delay = 9000;
       ;

     memory "lfuse"
         size            = 1;
         write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 0 0 0",
                           "x x x x  x x x x  i i i i  i i i i";

         read            = "0 1 0 1  0 0 0 0  0 0 0 0  0 0 0 0",
                           "x x x x  x x x x  o o o o  o o o o";
        min_write_delay = 9000;
        max_write_delay = 9000;
       ;

     memory "hfuse"
         size            = 1;
         write           = "1 0 1 0  1 1 0 0  1 0 1 0  1 0 0 0",
                           "x x x x  x x x x  i i i i  i i i i";

         read            = "0 1 0 1  1 0 0 0  0 0 0 0  1 0 0 0",
                           "x x x x  x x x x  o o o o  o o o o";
        min_write_delay = 9000;
        max_write_delay = 9000;
       ;

     memory "efuse"
         size            = 1;
         write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 1 0 0",
                           "x x x x  x x x x  x x x x  x x x i";

         read            = "0 1 0 1  0 0 0 0  0 0 0 0  1 0 0 0",
                           "x x x x  x x x x  o o o o  o o o o";
        min_write_delay = 9000;
        max_write_delay = 9000;
     ;

     memory "calibration"
         size            = 1;
         read            = "0  0  1  1   1  0  0  0    0 0 0 x  x x x x",
                           "0  0  0  0   0  0  0  a0   o o o o  o o o o";
     ;
  ;

batteries

anonymous@undisclosed.example.com (Anonymous) — Tue, 05 Mar 2019 13:14:00 +0000

6-in-1

stick battery

800mAh

custom batteries

bidi2021

anonymous@undisclosed.example.com (Anonymous) — Wed, 12 Apr 2023 08:26:12 +0000

BIDI: Blockchain for Image and Data Integrity a.k.a Non Fungible Science

project by dk and jb denisa.kera

https://github.com/anonette/NonFungibleScience

GOAL

–> creating a tamper-proof system for scientific data by storing an unfalsifiable signature (hash of data + metadata characterizing the scientific equipment, experiment, documentation address/reference and context) in the blockchain.

–> this token stored in the blockchain can then be used to authenticate the original experiment, authors, device used and datasets and certify that it is the original, not a modified copy.

NFT Specification

https://github.com/ethereum/eips/issues/721

NTF IDs

The basis of this standard is that every NFT is identified by a unique, 256-bit unsigned integer within its tracking contract. This ID number MUST NOT change for the life of the contract. The pair (contract address, asset ID) will then be a globally unique and fully-qualified identifier for a specific NFT within the Ethereum ecosystem.

Content of the Ethereum NFT (ERC721) standard) implementation in a smart contract:

ERC-20 Compatibility (name, symbol, total supply, balanceOf)
Basic Ownership (ownerOf, approve, takeOwnership, transfer, tokenofOwnerByIndex)
Metadata (tokenMetadata:name, image, description, other metadata])
Events (transfer, approval)

LINKS

https://open.nytimes.com/could-blockchain-be-a-solution-to-the-issue-of-misinformation-online-492ca63ae42

https://www.proofofexistence.com/

https://www.sciencedirect.com/science/article/pii/S2210832717300753

https://docs.google.com/document/d/1Uhjb4K69l0bSx7UXYUStV_rjuPC7VGo0ERa-7xEsr58/mobilebasic

https://soenkeba.medium.com/nft-standard-for-science-papers-to-start-the-crypto-economy-for-science-f1e741e226b2

https://futurism.com/neoscope/george-church-harvard-scientist-genetic-code-nft

NFT science paper IPFS token

https://www.gizmodo.com.au/2021/03/researchers-found-a-way-to-literally-sell-a-nft-for-science/

{
“title”:”Molecular structure of nucleic acids: a structure for deoxyribose nucleic acid.”,
“refNLM”:”Watson JD, Crick FH. Published in Nature, number 4356 April 25, 1953. Nature. 1974 Apr 26;248(5451):765”,
“IPFS”:”QmcEXtfCZvSy1CFZuP78dNMjhbU3Vx5G1zRtVFt3PGAD1g”
}

https://ipfs.io

https://idcc.codes

https://iscc.coblo.net

bootloader

anonymous@undisclosed.example.com (Anonymous) — Tue, 29 Sep 2020 07:20:41 +0000

to compile a tiny bootloader

TLDR

on ubuntu (or wsl)

sudo apt-get install avr-libc gcc-avr
git clone git@github.com:idiot-io/TinyAudioBoot.git
cd TinyAudioBoot
sh setup.sh
cd TinyAudioBoot
#build the hex
make
#flash the hex
make upload

we are piggy backing on a windows successful bootloader upload to grab the right fuses everything.
just need to adapt

serial port (if changed from the windows upload sequence.
full path to HEX file (TinyFlexiAudioBoot_PB0.hex) you got from the make/linux build.

if you first had it running from arduino just changing the serial and hex file should have this running from cmd anywhere in your system.

#fuses burn
C:\Users\Admin\AppData\Local\Arduino15\packages\8BitMixtape\hardware\avr\0.0.28/tools/avrdude/windows/avrdude -cstk500v1 -B4 -PCOM8 -b19200 -pattiny85 -CC:\Users\Admin\AppData\Local\Arduino15\packages\8BitMixtape\hardware\avr\0.0.28/tools/avrdude/windows/avrdude.conf -Ulfuse:w:0xE1:m -Uefuse:w:0xFE:m -Uhfuse:w:0xDD:m 

#burn the bootloader
C:\Users\Admin\AppData\Local\Arduino15\packages\8BitMixtape\hardware\avr\0.0.28/tools/avrdude/windows/avrdude -cstk500v1 -B4 -PCOM8 -b19200 -b19200 -pattiny85 -CC:\Users\Admin\AppData\Local\Arduino15\packages\8BitMixtape\hardware\avr\0.0.28/tools/avrdude/windows/avrdude.conf -Uflash:w:C:\DEV\GitHub\FlexiATiny85-AudioBoot\code\bootloader\TinyFlexiAudioBoot_PB0.hex:i

why

was asked to compile the TinyAudioBoot bootloader.

i couldn't get budi's TinyAudioBoot/bootloaderbuild to work, ~~must be a typo of mine.~~
yes, recreate the symbolic link for bootloaderbuild/main.cpp

ln -s /where/is/repo/TinyAudioBoot/TinyAudioBoot/TinyAudioBoot.c main.cpp

so decided to make an automated build system that will pull (most) needed dependencies and compile.

here is the working repo, ill submit when its done.

the current dependencies are

arduino software - this you'll have to install yourself. and supply the path to the Makefile. there are instructions below.
Arduino-Makefile - an external build system for arduino (see also arduino-cli)
ATTinyCore

os support

for the following i used ubuntu on windows.
so get into ubuntu, TLDR: use vscode and click the bottom left green button.
this will work also on linux native
budi's bootloaderbuild was tested on mac, so try that.

install arduino

TLDR, or see setup script in git folder.
to install it inside the project folder.

wget https://downloads.arduino.cc/arduino-1.8.13-linux64.tar.xz
tar -xf arduino-1.8.13-linux64.tar.xz
#just renaming the thing
mv arduino-1.8.13-linux64 arduino/
#and moving to our local user bin folder. 
mv arduino-1.8.13-linux64 ~/.local/bin/

if all went well you will have an arduino installed in linux under path ~/local.bin/arduino
if you're on linux desktop you can run

./install.sh

from the arduino directory to get the icons on desktop, we are not interested.

get the project

we will clone the git for tinyaudio and get the two other submodules.

git clone git@github.com:idiot-io/TinyAudioBoot.git
cd TinyAudioBoot
git update submodules --init
cd TinyAudioBoot
#clean the build folder (bin)
make clean
#build the hex
make
#flash the hex
make upload

the output has this flags, broken into lines. because its an automated build system it spits out a few double and empty flags.
note the first Capital Letter after a - is part of the avr flag system. and not part of the variable.

output/

/usr//bin/avr-g++ 
-MMD 
-c 
-D__PROG_TYPES_COMPAT__ 
-g 
-Os 
-w 
-W 
-ffunction-sections 
-fdata-sections  
-MMD 
-I.  
-DBOOTLOADER_ADDRESS=0x0x1BC0 
-I 
-I 
-I../TinyAudioBoot  
-mmcu=attiny85 
-DF_CPU=8000000L 
-DARDUINO=1813 
-DARDUINO_ARCH_AVR 
-I/mnt/c/dev/TinyAudioBoot/TinyAudioBoot/../ATTinyCore/avr//cores/tiny 
-I/mnt/c/dev/TinyAudioBoot/TinyAudioBoot/../ATTinyCore/avr//cores/tiny/api 
-I/mnt/c/dev/TinyAudioBoot/TinyAudioBoot/../ATTinyCore/avr//variants/tinyX5    
-Wall 
-ffunction-sections 
-fdata-sections 
-Os 
-pedantic 
-Wall 
-Wextra 
-fpermissive 
-fno-exceptions 
-std=gnu++11 
-fno-threadsafe-statics 
-flto 
-fno-devirtualize 
-fdiagnostics-color=always 
/mnt/c/dev/TinyAudioBoot/TinyAudioBoot/../ATTinyCore/avr//cores/tiny/new.cpp 
-o /mnt/c/dev/TinyAudioBoot/TinyAudioBoot/bin/attinyx5/TinyAudioBoot/core/new.cpp.o

box

anonymous@undisclosed.example.com (Anonymous) — Wed, 17 Jun 2020 16:10:45 +0000

multi soldering station

laser cut box generated using benjolin case openscad script by stahl

take note

in the laser folder at git you have a dxf file for each face
we use the front.dxf for both front and back, and they represent the position of the controls

when exporting the panel from inkscape
- make sure to save as DXF
- set the base unit to mm

no splines or curves, make sure to break them before exporting

release v1a

master current [pdf]

media

power supply

we currently use a 180W laptop power supply as it is slim and capable.

power chart for hakko T12

candidates

“the 400W chinese one”

bangood AC-DC 24V/17A 400W

“the 180W laptop power supply”

amazon

“the thin pro one”

“the single head one”

https://www.banggood.com/Geekcreit-4A-To-6A-24V-Switching-Power-Supply-Board-AC-DC-Power-Module-p-969204.html 5A/24V

single unit

source

(The default has been set, no special requirements, please do not set up a random)
Press and hold the encoder button does not move → start → enter the parameter settings mode:

There are 12 menus available for setup,P00,P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11.
The digital display menu is 1.5 seconds,and then automatically displays the corresponding parameters of this menu,at the same time rotate left encoder is reduced,right is increase,Press it and automatically save the currently set parameters. And then display the next menu for 1.5 seconds, and then display the corresponding parameters of this menu, and so on. When all parameters are set to automatically enter the normal heating mode.

Because each set a parameter to save once, so you can shut down at any time without having to set all the parameters (such as you just want to set P01, set P01 after you can shut down and then boot into normal mode)

Menu item:

P00: restore the default parameters (0 or 1, the default value of 0,0 for not recovering, 1 for the recovery)

P01: Operational amplifier gain (200 to 350 times, step 1, default 230)

P02: Operational amplifier offset voltage (0 ~ 250mV, step 2, the default value of 100, refers to the tip to keep the room temperature operational amplifier inherent output voltage, according to my measurement this voltage varies greatly with temperature, different magnification Not the same, the higher the magnification, if you do not measure, please keep the default value)

P03: thermocouple ℃ / MV data (30 ~ 50, step 1, the default value of 41, refers to the thermocouple need to temperature how much voltage was increased by 1mV, according to the type of thermocouple self-calculation, if you do not understand, please keep Defaults)

P04: temperature adjustment step (0,1,2,5,10 degrees optional, 0 can lock the soldering iron temperature)

P05: sleep time (how long don’t not move into sleep) (0 ~ 60 minutes, step 1, 0 is to forbidden the sleep function)

P06: Shutdown time (0 ~ 180 minutes, 0 ~ 30 step 1,30 ~ 180 step 10, 0 is forbidden shutdown function)

P07: temperature correction (+20 degrees, step 1) (due to NTC resistance in the chassis, the soldering station heat will lead to the detection of NTC temperature higher than room temperature, resulting in high temperature compensation of the thermocouple, soldering iron temperature is not accurate,or other causes the temperature is not accurate.If you set the other parameters are correct value but the temperature is still high or low, you can use this parameter correction.For example, to detect the displayed soldering iron temperature is 20 degrees higher than the actual value of this parameter Set to 20)

P08: wake mode (0,1, 0 in the shutdown mode can be rotated the encoder and also can shake the handle to wake up, 1 can only rotate the encoder wake up (Note: press the encoder can not wake up, can only rotate) )

P09: temperature increase mode to increase the temperature to adjustable (20 degrees to 100 degrees adjustable, adjust the pace of 10 degrees)

P10: temperature to increase the duration to adjustable (adjustment range of 10 seconds to 250 seconds, adjust the step 5 seconds)

P11: Parameter setting mode Auto save parameter and return to heating mode Function to active time adjustable (range 4 seconds to 60 seconds)

Installed Note:

1. Strictly reference shop tutorials, well insulated and grounded against static electricity.
2. Before power test, carefully check the wiring is correct, whether Weld and short, full power test machine after confirmation.
3. connect 12-24V DC, if received more than 20V power supply,2017 new style product don't need to remove anything
4. When you configure the power supply voltage and current requirements themselves refer to the following table:

Power (third column) is determined by the voltage (first column), as long as the current reaches the minimum current (second column).

Measuring Machine normal, lights and display status:

1. Unplugged T12 tip, turn the light flashed off, show SER, 1 seconds after the display 500.
2. T12 plug tip, boot light uniform flashing, indicating rapid heating from room temperature generally show the set temperature to rise, approaching the set temperature, strobe lights. Indicator is not flashing or intermittent flashes, indicating that the tip temperature reaches the set temperature or alternating temperature compensation.

When measuring machines on display digital bounce questions:

Because with the new T12 tip, the tip inside the heater did not burnt, it will be just a little jump start with warm, generally do not need special treatment, the natural use of 1-2 days basically not bounce up. If you need effective immediately, the general recommendations of the temperature to 350 ?-380 ?while heating to the point of tin iron head, burning off after 4-5 minutes, until the tip to cool before you can reboot! (1 no action can be repeated 2-3 times)

case

see github

BUY

brain

anonymous@undisclosed.example.com (Anonymous) — Sun, 02 Jul 2023 13:35:10 +0000

BRAIN

DK brain scan - dropbox

3D

using mevislab
mevislab_9pt1exudz3.mp4

2D

Load chpped Audio, please mute

hydra_2023-05-27_22-49-21.mp4 by domj

using

by AIdvice

 sudo apt install mricron

mricron_2023-05-27_23-51-38.mp4

filetype
“The .ima extension is also commonly used to denote DICOM Magnetic Resonance Imaging (MRI) image files (.ima) obtained with Siemens MRI medical scanners (e.g., Siemens MAGNETOM). An .ima file is a container for a series of sequential MRI scans (usually, of a human brain) that can be opened, viewed, and analyzed using dedicated MRI software or open-source packages like ImageJ. Besides, Siemens DICOM (.ima) images can be directly viewed using several multi-format image viewers.”

brvbot

anonymous@undisclosed.example.com (Anonymous) — Tue, 26 Feb 2019 14:11:53 +0000

This page has been moved, the new location is brvrbt.

brvbot_images

anonymous@undisclosed.example.com (Anonymous) — Fri, 08 Mar 2019 20:56:10 +0000

brvbot_videos_exp

anonymous@undisclosed.example.com (Anonymous) — Sun, 05 May 2019 00:34:42 +0000

More here

behaviour, zoning laws, documentation, people dynamics, human traces,

ants_circle

living systems, bugs
ants_circle human_lcd_ _bicore_headbot arthur_ganson-_wishbone.mp4 insane_in_the_chromatophores.mp4

group, freedom, control
venda_domba_tribe

cybernetics. living machines
grey_walter_s_tortoises karl_sims_-_evolved_virtual_creatures_evolution_simulation_1994 tunzelbots.mp4 tree_stomper.mp4 robot_with_a_rat_brain.mp4

blackbox
alexander_calder_performs_his_circus

reich, sexual revolution, orgonone, science of empathy
kate_bush_-_cloudbusting_-_official_music_video-pllrw9wetzw.mp4

Snoezelen, over\under sensory overload
duchess_says_black_flag

\\living machines, suffering
star.wars.episode.vi tree_stomper.mp4 still_face_experiment_-_dr._edward_tronick.mp4 soft_materials

\\learning systems, the uncanny vally, the inadicute robot
musculoskeletal_infant_robot_pneuborn hayao-miyazaki karl_sims_-_evolved_virtual_creatures_evolution_simulation_1994

nina_simone_feelings_montreux_jazz_festival.mp4

\\the new romantics
perfectfake

\\autism, control
cattle_handling_facility_design_for_meat_plants animals respond to and remember the details of the world around them, whereas non autistic humans overlook the details in favour of the overall whole. in_my_language.mp4

\\cardboard electronics

peter_vogel_-_the_sound_of_shadows_2011.mp4 ledworkshop01zimmer

end_of_life_care_machine robot_mirrors_our_emotions.mp4 short_circuit_-_no_disassemble.mp4 simple_balancing_analog_robot.mp4

pina_bausch_blaubart_cut_01 the_robot_who_looked_like_me_by_artist_simon_yates.mp4 robotic_targets_on_trial_on_the_firing_ranges.mp4 survival_research_labs_proposal_for_google.mp4 world_s_smallest_robot_with_gripper.mp4 playing_catch_and_juggling_with_a_humanoid_robot.mp4 experiment_of_the_new_balance_control_system_ my_morning_bot_29c3 janken_rock-paper-scissors_robot_with_100_winning_rate.mp4 john_rylands_libary_donations_box_automata mark_tilden_explaining_walkman_vbug1.5_at_the_1995_beam_robot_games johnny_5_-_i_need_a_hero.mp4 kangaroo_robot_by_festo.mp4 kara_-_a_ps3_new_technology.mp4 2_1994 ls3_follow_tight magnetic_robots_on_kadishman.mp4 my_experience_with_autism.mp4 introduction_to_kilobot.mp4 extremely_cruel_practices_1985_la_survival_research_labs.mp4 happy_dance.mp4 hyper_fast_robot_line_following.mp4 do_yourself_a_favor_and_watch_this_kitten_attack_a_ceramic_cat.mp4 switching_off_a_robot.mp4 carlos_vilardebo_-_el_circo_de_calder_1961.mp4 ball_balancer_2.0.mp4 walking_paper.mp4 robots_inspired_by_animals.mp4 robots_off_the_air_adult_swim.mp4 self-folding_origami_robot_walks_on_its_own.mp4 styx_-_mr._roboto_relaid_audio.mp4 the_most_famous_japanese_karakuri_automata_that_have_made_200_years_ago..mp4 ugobe_s_pleo_robotic_dinosaur.mp4 toa_mata_band_-_episode_1_the_inception.mp4 lady-a-motor-bug.mp4

moneytree VS karl Sims 2019-05-05_03-32-31.mp4

siggraph94.pdf

brvrbt

anonymous@undisclosed.example.com (Anonymous) — Wed, 05 Jun 2019 10:56:36 +0000

ants_circle venda_domba_tribe

video archive with all of the video we used image archive with all of the video we used

workshop gallery - add your photos

brvrbt_2019_present.pdf,edit

braitenberg_vehicles_thornton.pdf

In this workshop participants will build primitive bots possessing synthetic emotions, exploring the possibility of of emotional connection between man and machines. this animated lifelikes help realize a thought experiment put forth by Valentino Braitenberg, on the matter of synthetic psychology.

We start the workshop with physical exercises using sensory deprivation techniques (and bondage) to simulate the limiting world bots perceive and react to. After a discussion and a quick soldering tutorial we go into robot building. Our bots do not use binary logic, keeping circuitry analog in the B.E.A.M* robotics spirit. The circuit itself is deceptively simple, with two halves interconnected to form a base responsive/exploratory nervous system.

*Biology, Electronics, Aesthetics, and Mechanics.

alexander_calder_performs_his_circus

research

empathy

empathy has few definitions basically “putting oneself in another man's shoes” (Berger). or in more detail: “The capacity to (a) be affected by and share the emotional state of another, (b) assess the reasons for the other's state, and © identify with the other, adopting his or her perspective. This deﬁnition extends beyond what exists in many animals, but the term “empathy” … applies even if only criterion (a) is met.”[src]

the thing with empathy (and feelings in general) is that, similar to physical pain, it is an immeasurable quantity, we cannot put it on scale or quantify it in an objective form (this is contested, see below). also, to take onto ourselves the burden of this emotion, we must internalize the state of the other. we must take onto ourselves their worldview. but as we create and control their capacities- we are going beyond ideas of compassion, sympathy or empathy into a different domain, one we share with gods and creators. it is said that god has no compassion for his creations.
we gave them life, their internal mechanism is spread before us, so there is no room for feelings, there should be instead a form striving to perfect a techno-mechanical construction to reach a goal of perfection. their fall is our blame as makers.

"science" of empathy

src

but before all was Wilhelm Reich

Constant use of junk of the years has given me the habit of directing attention inward. When I went into the accumulator and sat down I noticed a special silence that you sometimes feel in deep woods, sometimes on a city street, a hum that is more rhythmic vibration than a sound. My skin prickled and I experienced an aphrodisiac effect similar to good strong weed. No doubt about it, orgones are as definite a force as electricity. After using the accumulator for several days my energy came back to normal. I began to eat and could not sleep more than eight hours. I was out of the post cure drag.william Burroughs, “junky” excerptwp

Reich argued that neurotic symptoms such as obsessive–compulsive disorder were an unconscious attempt to gain control of a hostile environment, including poverty or childhood abuse. They were examples of what he called “character armour” (Charakterpanzer), repetitive patterns of behaviour, speech and body posture that served as defence mechanismswp

Protoza and the Four Kingdoms

Keywords: orgonomics, Orgon, vegetotherapy , Charakterpanzer, Primigenal, psychophysiology

Physiologic Measurements

Electrodermal activity

Multiple physiologic measures have been employed in psychotherapy research, including skin conductance, heart rate, blood pressure, skin temperature, respiratory rate, muscle tension and electroencephalography marci2005.pdf

src

Simultaneous SC measurements from both patient and therapist were recorded throughout a single full-length psychotherapy session of approximately 45 minutes for each of the 20 patient-therapist dyads. The therapy session followed a brief standardized interaction between the patient and one of the authors (C. D. M.) to test the initial reliability of the proposed measure of SC concordance (Marci and Orr, 2006). Continuous SC level was collected using Ag-AgCl electrodes secured to the distal palmar surface of the third and fourth digits of each participant’s nondominant hand. Physiologic Measurements

https://www.google.co.il/search?q=Ag-AgCl&

software

https://psychology.stackexchange.com/questions/16017/open-source-software-for-analyzing-electrodermal-activity SC data software

previous workshops

brvrbt2012

brvrbt.tumblr.com

candy

anonymous@undisclosed.example.com (Anonymous) — Thu, 13 Jun 2019 12:26:25 +0000

work in progress

t_en_es_ou_dans_tes_revisions_😂_-_les_sous-doues_passent_le_bac-918114368523466.mp4 src

cave

anonymous@undisclosed.example.com (Anonymous) — Mon, 25 Feb 2019 18:18:00 +0000

visit to the dedicated workshop space in prague

the cave 20180109_200045.mp4 20180109_200102.mp4 20180109_200310.mp4

cenon

anonymous@undisclosed.example.com (Anonymous) — Wed, 01 Jan 2020 20:56:14 +0000

https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=cenon

https://www.cenon.info/frameLoad_gb.html?support_faq_gb.html

  wget http://www.cenon.zone/download/source/Cenon-4.0.2.tar.bz2
  bzip -d Cenon-4.0.2.tar.bz2 
  chmod +x Cenon-4.0.2.tar*
  tar xvf Cenon-4.0.2.tar
  cd Cenon/
  sed -i 's|Diff((VFloat)|Diff((float)|' TileScrollView.m
  sed -i 's|(VFloat)\[\[resPopupListButton|[[resPopupListButton|' TileScrollView.m
  make GNUSTEP_MAKEFILES="/usr/share/GNUstep/Makefiles/" GNUSTEP_LOCAL_LIBRARY="/usr/lib/GNUstep/Libraries/" GNUSTEP_LOCAL_APPS="/usr/share/"
  cd Cenon.app/
  ./Cenon

chaos

anonymous@undisclosed.example.com (Anonymous) — Mon, 07 Jan 2019 19:19:51 +0000

http://mysite.mweb.co.za/residents/cyb00746/chaos/chaos.htm

http://juho-eric.blogspot.com/2011/12/ltspice-simulation-of-chuas-circuit.html

http://nonlinear.eecs.berkeley.edu/chaos/chaos.html

http://crossgroup.caltech.edu/chaos_new/Chua.html

chew

anonymous@undisclosed.example.com (Anonymous) — Fri, 18 Jan 2019 21:27:50 +0000

“Bone conduction is not a new discovery.
Ludwig Van Beethoven overcame deafness by biting a metal rod attached to his piano to hear his work.” source

can we use bone conduction to pick up chewing sounds and can we process and categorize them into something

recording techniques

we found several different methods of recording chewing sounds. listed below

A two component system was devised for recording and analyzing chewing sounds conducted through the bone. A specially designed 0.0005 in. thick stainless steel needle mounted on a phonograph cartridge (Figure 1) was found to be most reliable for picking up vibrations from bony surfaces while a subject chewed a standard portion of a test food for 10 strokes. The signal was fed through an amplifier and recorded on a in. magnetic tape in a tape recorder* run at a speed of 3¾ inch per sec. The sounds were also monitored with earphones by the investigator.
[…]
Three bony areas (center of the forehead, mastoid process and lower border of the mandible towards its angle) were chosen to establish, if possible, a single satisfactory and reliable landmark for picking up chewing sounds. The pick-up needle was gently pushed through the skin to rest on the bony surface at a point that was free of muscle attachment and had a relatively thin tissue cover. This point was established by palpating the area while the subject was asked to clench his teeth and relax. The pick-up device was held in place with a rubber cuff. The sounds were recorded separately from each of the three sites while the subject chewed a 3 g portion of peanuts.

“frequency spectrographic analysis of bone conducted chewing sounds” (1971)

The experiments were conducted in a sound-proofed recording studio. Bone Conduction was recorded with a microphone Shadow 4001 (frequency band: 80-15000 Hz) pressed firmly against the cheek of the subject, near the maxillar angle, on the eating side. Air-conduction was recorded with a microphone AKG C414EB (frequency band: 20-20,000 Hz) held on the other side of the subject’s head. The diaphragm of the microphone was in front of the ear canal opening at 8 cm.

“contribution of air-and bone-conduction to the creation of sounds perceived during sensory evaluation of foods” (1991)

Participants were seated comfortably in a small sound-attenuated booth […] A microphone (Sennheiser ME66/K6 supercardioid, Wedemark, Germany), powered by a […] mixer, was placed such that when participants were seated in the booth, the microphone was positioned directly in front of their mouths. The output from the mixer was then fed through one of three attenuators (Advance Instruments step-attenuator, model A64A, Bethel Park, PA) situated outside the booth, and subsequently through one of three 1/3 octave graphic equalizers (Phonic, model PEQ3300, Tampa, FL) before being fed back to the participant in the booth, via a pair of headphones

“the role of auditory cues in modulating the perceived crispness and staleness of potato chips” (2004)

articles

scholarly related articles

hardware

currently a homebrew pickup\piezo pickup microphone seems the best bet.

AliExpress sellers of bone conduction headphones/microphones bluetooth headsets might also be interesting to test.

the "unlimited gum" piezo based prototype offers some interesting quotes

Audio Processing

https://www.analyticsvidhya.com/blog/2018/01/10-audio-processing-projects-applications/

confromal_coating

anonymous@undisclosed.example.com (Anonymous) — Mon, 24 Dec 2018 12:33:10 +0000

this is not on conformal coating but all kinda of industrial and food grade polymers

RTV food grade

oomoo 30 Silicone rubber
Material Safety Data Sheet ]

suppliers
* cermat
* skiva

medical epoxy

LOCTITE® M-31CL™ - datasheet
151Med - site

glass transition - pdf

polycarbonate

“Polycarbonate has a glass transition temperature of about 147 °C”
"dont do it!"

datahseet for example

stores to check

דבקים מוליכי חום וחשמל לאלקטרוניקה

connectors

anonymous@undisclosed.example.com (Anonymous) — Mon, 29 Apr 2019 06:44:59 +0000

to buy

שקע חשמל IEC 10A לפנל

תקע חשמל IEC 10A לפנל עם בית פיוז

מתאם לפנל - (RJ45 CAT6 FTP (F) ~ RJ45 CAT6 FTP (F

מתאם לפנל - (USB 3.0 A (F) ~ USB 3.0 A (F

מפסק רוקר קטן

רגליות גומי

misc

copper-clads

anonymous@undisclosed.example.com (Anonymous) — Wed, 06 Mar 2019 14:18:31 +0000

we are looking for pre-coated 0.8mm single side PCBs.
but this are hard to find outside of bungard redistributors….
DE (1.5mm only), and UK (0.5mm!)

here are some alternatives. of ebay and aliExpress

china shipping at ~2$

interesting thicknesses but crazy expensive shipping outside of USA (~50$ for first item+10$ for additional)

danceforms

anonymous@undisclosed.example.com (Anonymous) — Thu, 23 Jul 2020 11:11:50 +0000

At age seventy, Cunningham became the first choreographer of international renown to create work in dialogue with software technologies, when he was forced to explore the limitations that severe arthritis imposed upon his own freedom of movement. Cunningham's use of the computer has been described as an extension of his interest in integrating vernacular movement into the context of the dance. In CRWDSPCR, dancers aim at exact angles with their arms and feet, changing phrases quickly and methodically, as though transitioning from one keyframe to the next. These movements seem directly influenced by the shapes and rhythms of the LifeForms figures. In a 1994 essay, Cunningham writes of his 1989 introduction to a dance https://www.eai.org/titles/crwdspcr-documentary

Rhonda Ryman's Ballet Moves II® bm2.zip
PowerMoves 1&2 Animation Libraries for Mac & Windows“ pm-zip-15.zip
MeGaMoCap V2 Animation Library for Mac & Windows”
dancemoves available to d/l from credo for free » here mirror

deep_candy_recipes

anonymous@undisclosed.example.com (Anonymous) — Mon, 11 Jul 2022 18:52:10 +0000

this recipe does not exists - https://github.com/Hollings/thisrecipedoesnotexist

hugginface - site for deep learning learning

https://towardsdatascience.com/using-machine-learning-to-generate-recipes-that-actually-works-b2331c85ab72

https://github.com/jadkins89/Recipe-Scraper

delayline

anonymous@undisclosed.example.com (Anonymous) — Tue, 08 Oct 2019 20:25:03 +0000

Delay Line Memory: How Computers Remembered Before RAM

delay line memory.
It was random in a different sense; it involved turning electrical pulses into sound waves,
sending them through long tubes of mercury, and re-electrifying them at the other end.

diyphotocell

anonymous@undisclosed.example.com (Anonymous) — Wed, 09 Sep 2020 08:11:26 +0000

DIY Photocell Diode?

What is a photo diode

Photoelectric effect

DIY Diode Modern Cuisine

DIY Aluminium Diode

Cadmium Sulfide

DIY FET/home-made transistor

Simple home-made Photocell

dobot

anonymous@undisclosed.example.com (Anonymous) — Thu, 18 Apr 2019 20:51:43 +0000

i find the dobot a bad arm

unpredicatble motion on boot
atmega mcu used for some comm abstraction, a closed fpga is inside, see github for ramps alternative
expensive

python

needs python 32bit, used conda to install environment on windows. works.
see dobot-magician-demo-description.pdf

there are 3 more examples in the d/l section.

option B

from this guide, https://github.com/nanusefue/dobotMagician}github

GPIO

connect the servo to GP3 using the 4 pin JST connector, it will then be controlled

see 5.17.3 “PWM OUTPUT” in user guide 1.7

RAW serial control

How to communicate with Dobot using raw protocol

movement types

from github docs

electricwonderland2022

anonymous@undisclosed.example.com (Anonymous) — Sat, 09 Jul 2022 16:55:04 +0000

new recipes!!

electrodibels-rotate.webm

https://github.com/idiot-io/candy/releases

deep recipes

https://towardsdatascience.com/using-machine-learning-to-generate-recipes-that-actually-works-b2331c85ab72

molds

Ingredients

2 cups granulated sugar
2/3 cup light corn syrup
3/4 cup water
1 dram (1 teaspoon)* LorAnn Super Strength flavoring, any flavor
LorAnn liquid food coloring or gel food coloring (as desired)
Hard candy molds (optional)
Powdered sugar (optional)
Sucker bags & twist ties (optional)

Equipment

Use of a candy thermometer is recommended

*Please note that our Cinnamon, Clove and Peppermint flavors are particularly potent. You may wish to reduce the amount used for these flavors.

Directions

Make sure your thermometer measures accurately; in boiling water it should read 212°F. (100° C.). Have all ingredients and tools assembled and within easy reach of the stove. The use of metal spoons and measuring utensils is recommended. Line a rimmed baking sheet/jelly roll pan with foil and lightly oil or spray with non-stick cooking spray (such as PAM).

If using molds, lightly spray cavities of clean, dry candy molds with non-stick cooking spray. Insert sucker sticks. If using molds, you may also want to spray a piece of aluminum foil with cooking spray. If after pouring the syrup into the molds you have excess candy, you can pour it onto the foil for break-up candy.

In a heavy (good quality) 2-quart saucepan, mix together sugar, corn syrup and water. Stir over medium heat until sugar dissolves.
Insert candy thermometer if using, making certain it does not touch the bottom of the pan. Bring mixture to a boil without stirring.
Early in the cooking process, “wash down” any sugar crystals that form on the sides of the pan with a wet pastry brush.
Continue to cook the syrup, without stirring, until the temperature reaches 260º F; add drops of coloring until desired hue is achieved. Do not stir; boiling action will incorporate color into syrup.
Remove from heat precisely at 300° F (temperature will continue rising), or until drops of syrup form hard, brittle threads in cold water (hard crack stage). After boiling action has ceased, add flavor and stir. USE CAUTION WHEN ADDING FLAVORING TO AVOID RISING STEAM.
Carefully pour syrup into prepared molds or onto the prepared greased and foil lined cookie sheet. (As the sugar mixture begins to set up, you may want to score with a large knife to mark squares.) Do not refrigerate.
Cool completely. Break sheet candy into small pieces and dust with powdered sugar, if desired.

Store in airtight containers between waxed paper. If making lollipops, do not dust with powdered sugar, but place in sucker bags and secure with twist ties. Store hard candy in a cool, dry place. Do not refrigerate.

Tip: For easy clean-up, simply soak your pot and utensils in hot water until the hardened candy is dissolved.

*Another alternative is to pour the hot candy onto a heat-resistant surface covered in powdered sugar. When the candy is slightly cooled, it can be cut with well-oiled scissors into pillow-shaped pieces (you may want to wear heat-resistant gloves, such as rubber, to protect hands from heat).

source (r/candyMakers)

how to get clear candy

hw to keep suger syrup from carmelizing}

Quotes

It'll always be a little yellow because once you cook out enough water to make hard candy, the sugar immediately starts to caramelize. You can add a tiny little bit of blue or purple to counter the yellow tones (it works the same as toner when you bleach your hair..) but it's never going to be perfectly colorless.

Use less water. You will want the sugar to look like wet sand.

keep your oven on and put it in if it cools down too much

Titanium dioxide is used in popular candies and other processed foods to give a smooth texture or to work as a white colorant.

Gummy

Try tasting the liquid before it sets up and adjusting as needed. If you don't like the taste of the liquid, you won't like the taste of the finished product.

The chefsteps recipe is awesome. And you can use literally anything as the flavoring. I did old fashioned , margaritas, raspberry basil, mango melon, and basil gin. All amazing!

For homemade gummies, you need a ratio of 2 tbsp (about 18g) gelatin powder to 1 cup liquid. The liquid, sweetener and flavour is up to you. Heat liquid, whisk in gelatin then pour into molds.

If you use soda, the flavour will stick around but the carbonation will not.

anybody_got_gummybears_recipe

haribo_gold-bears_gummy_candy_copycat_recipe_the_food_hacker.pdf

pdfx ulticandy700.pdf --json --text -o ulticandy700.json

ulticandy700.zip

sugar sculpting

likeglass_school_of_chocolate_s1_ep7.mp4

encoding

anonymous@undisclosed.example.com (Anonymous) — Sat, 14 Sep 2019 00:54:52 +0000

https://trac.ffmpeg.org/wiki/Encode/YouTube

gst-launch-1.0 -v filesrc location=goldplating.mp4 ! decodebin ! x264enc bitrate=426 ! "video/x-h264, profile=main" ! qtmux ! filesink location=goldplating-gst.mp4

fb.txt

gst-main.txt

esp32-cam

anonymous@undisclosed.example.com (Anonymous) — Sat, 04 Jan 2020 17:01:50 +0000

see also multicam for raspberry/arducam more demanding tasks.

ESP32 stream camera modules

at their core this modules uses external RAM (psram to buffer an ov2640 camera module that does jpeg at 10fps on-board. the external ram is not strictly necessary, but going fwd its the right way to go, beware of modules without one

Note2: new modules in market are updated, make sure they carry PSRAM chip

note: current M5Stack modules DO NOT come with the PSRAM chip and are limited in performance and by heat issues.

modules tested
ESP32-CAM - ~~glitching ATM~~ works, but lacks heatsink
TTGO T-Journal - comes with arduino support, works out of the box, has a heatsink on the esp32.
M5Stack - works out of box, lacks PSRAM, lacks heatsink

yet untested
ESP32-wrover-kit
ESP32-WROVER-B
TTGO T8
esp-eye - link

TTGO T-Journal-revisit

ESP32-CAM

AI-thinker has released a QR-code reading example.

<html> <ul><li>Wireless Module- ESP32-S WiFi 802.11 b/g/n + Bluetooth 4.2 LE module with PCB antenna, u.FL connector, 32Mbit SPI flash, 4MBit PSRAM</li> <li>External Storage – micro SD card slot up to 4GB</li> <li>Camera <ul><li>FPC connector</li> <li>Support for OV2640 (sold with board) or OV7670 cameras</li> <li>Image Format – JPEG( OV2640 support only ), BMP, grayscale</li> <li>LED flash light</li> </ul></li> <li>Expansion – 16x through-holes with UART, SPI, I2C, PWM</li> <li>Misc – Reset button</li> <li>Power Supply – 5V via pin header</li> <li>Power Consumption <ul><li>Flash LED off – 180mA @ 5V</li> <li>Flash LED on to maximum brightness- 310mA @ 5V</li> <li>Deep-sleep – 6mA @ 5V min.</li> <li>Modem-sleep – 20mA @ 5V min.</li> <li>Light-sleep – 6.7mA @ 5V min.</li> </ul></li> <li>Dimensions – 40.5 x 27 x 4.5 mm</li> <li>Weight- 10 grams</li> <li>Temperature Range – Operating: -20 ℃ ~ 85 ℃; storage: -40 ℃ ~ 90 ℃ @ < 90%RH</li> </ul> </html>

spec gathered and formatted by cnx-software, check his feed for the latest in embedded open designs interesting, might be a seeedstudio design, but abandoned (cache).

AI-thinker offical store on taobao
ALIexpress sellers
UK seller

pinout
schematics
datasheet (chinese) - from wiki
wiki-page - lots of time offline

gettting it going

#install esp-idf on system
https://docs.espressif.com/projects/esp-idf/en/latest/get-started/#get-esp-idf

#get esp-who repo, it will also pull submodule esp32-camera component
git clone --recursive https://github.com/espressif/esp-who.git
#if you didnt pull the submodules run  $ git submodule update --init 
cd esp/esp-who/examples/single_chip/camera_web_server/


# change camera module to ai-thinker in sdkconfig
# also change port to /dev/ttyUSB0 or whatever is yours. 
#
# Camera Pins
#
CONFIG_CAMERA_MODEL_WROVER_KIT=
CONFIG_CAMERA_MODEL_M5STACK_PSRAM=
CONFIG_CAMERA_MODEL_AI_THINKER=y
CONFIG_CAMERA_MODEL_CUSTOM=
CONFIG_ESP_FACE_DETECT_ENABLED=y
CONFIG_ESP_FACE_RECOGNITION_ENABLED=y
#now compile and flash
make menuconfig
make flash

M5Stack

M5Stack host it's product page on github .

M5Stack warn not to use the cam module for extended time as “it might over heat"!
also as this github issues #1,#2 mention it does not come with the PSRAM extra memory so it cannot run some demos and is generally slower. as the answer is

If you have the non-psram model, then the max you can stream is 800×600, 1 frame buffer and quality around 10 or more.
With PSRAM you can do full res, full quality and 2 or more frame buffers.

note: they recently forked a github with psram support so expect it to be available sometime soon.

<html> <ul> <li>ESP32 specifications<ul> <li>Dual-core Tensilica LX6 microprocessor</li> <li>Up to 240MHz clock frequency</li> <li>512K internal SRAM</li> <li>4MB Flash memory</li> <li>Integrated 802.11 BGN WiFi transceiver</li> <li>Integrated dual-mode Bluetooth (classic and BLE)</li> <li>Hardware accelerated encryption (AES, SHA2, ECC, RSA-4096)</li> </ul> </li> <li>CP2104 USB TTL</li> <li>OV2640 sensor<ul> <li>Output Formats(8-bit):<ul> <li>YUV(422/420)/YCbCr422</li> <li>RGB565/555</li> <li>8-bit compressed data</li> <li>8-/10-bit Raw RGB data</li> </ul> </li> <li>Maximum Image Transfer Rate<ul> <li>UXGA/SXGA: 15fps</li> <li>SVGA: 30fps</li> <li>CIF: 60fps</li> </ul> </li> <li>Scan Mode: Progressive</li> </ul> </li> <li>Camera specifications<ul> <li>CCD size : 1/4inch</li> <li>Field of View : 78 degree</li> <li>Maxmium Pixel: 200W</li> </ul> </li> <li>Sensor best resolution: 1600 * 1200</li> <li>Dimension: 25mm x 24mm</li> <li>Weight: 5g</li> </ul> </html>

notable addons

demo code: github - this actually worked
Has the MPU6050 & bme280 pads on the board, can do DIY solder easily.
3. Has IP5306, can connect with lithium battery

getting image

comes with working demo code: github

watch their github m5stack-cam-psram

esp-who

make defconfig
make flash

I (309) boot: Loaded app from partition at offset 0x10000
I (309) boot: Disabling RNG early entropy source...
E (312) spiram: Expected 4096KiB chip but found 8192KiB chip. Bailing out..
E (319) cpu_start: Failed to init external RAM!

TTGO T-Journal

Chipset ESPRESSIF-ESP32-PCIO-D4 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor
FLASH QSPI flash/SRAM, up to 4 x 16 MB
SRAM 520 kB SRAM
dispaly 0.91 SSD1306
USB to TTL CP2104
Camera OV2640 2Megapixel
Steering engine analog servo (PWM?)
working voltage 2.3V-3.6V
working current about 160mA
size 64.57mm*23.98mm
Power Supply USB 5V/1A
charging current 1A - battery 3.7V lithium battery

store
github

getting image

the TTGO T-Journal comes with arduino support github repo

configure arduino with esp32 support
using the board type ESP32 Dev Module

unzip Downloads/esp8266-oled-ssd1306-master.zip -d ~/Arduino/libraries/
cd ~/Arduino/libraries/
git clone https://github.com/LilyGO/ESP32-Camera
#(re)open arduino 
File>Examples>Examples from customs libraries>ESP32 camera>ESP32_Station_Cam.ino

the TTGO is the best one.
comes pre-flashed out of the box and was able to reflash with their example.
missing are schematics.

click image for the mjpeg_stream output

getting image -arduino

git clone https://github.com/espressif/arduino-esp32.git ~/Documantes/Arduino/hardware/espressif/esp32
git submodule update --init --recursive
#Open [ARDUINO_SKETCHBOOK_DIR]/hardware/espressif/esp32/tools and double-click get.exe
#going for File>Examples>esp32>camera

i added the pinout for the T-journal

//https://github.com/espressif/esp-who/issues/2#issuecomment-435813085
// Select camera model
#define CAMERA_MODEL_TTGO_Tjournal

#elif defined(CAMERA_MODEL_TTGO_Tjournal)
#define PWDN_GPIO_NUM 0
#define RESET_GPIO_NUM 15
#define Y2_GPIO_NUM 17
#define Y3_GPIO_NUM 35
#define Y4_GPIO_NUM 34
#define Y5_GPIO_NUM 5
#define Y6_GPIO_NUM 39
#define Y7_GPIO_NUM 18
#define Y8_GPIO_NUM 36
#define Y9_GPIO_NUM 19
#define XCLK_GPIO_NUM 27
#define PCLK_GPIO_NUM 21
#define HREF_GPIO_NUM 26
#define VSYNC_GPIO_NUM 22
#define SIOD_GPIO_NUM 25
#define SIOC_GPIO_NUM 23

#push G32 on upload start

ESP32-wrover-kit

do not use for for new designs (see comment on wrover-b bellow) video released by espressif shows pattern detection capabilities.github
it uses the esp-wrover-kit

Dual core 240 MHz CPU;
with 4 MB SPI PSRAM (Pseudo static RAM);
Built-in USB-JTAG Debugger;
3.2” SPI LCD panel;
Micro-SD card interface
VGA camera interface
I/O expansion
DOOM enabled (jpg)
adafruit
aliexpress seller and his WiKi
getting started guide by io-bits

testing_the_face_detection_on_esp32.-10157127307648888.mp4

ESP32-WROVER-B

the ESP32-WROVER-B Module has the 8MB PSRAM but lacks some peripherals.
note the diff between qrover and wrover-b, which has the extra 8MB. better not use less then 4MB.

official datasheet
electrodragon offers a few configurations, and the offical list

TTGO T8

the T8 has the PSRAM with all the peripherals but the camera connector. store

PSRAM

the PSRAM is “a cheaper cost-per-bit cache and buffered memory solution” (link)

from ESP-PSRAM64 datasheet

“the ESP32 SDK at the moment only supports the ESP-PSRAM32 chip.” (doc), post#1.post#2

note: current M5Stack modules DO NOT come with the PSRAM chip and are limited in performance and by heat issues. TBD

camera and lenses

OV2640 datasheet

an earlier source code shows how to stream MJPEG to a browser. in video is an example of that with a few ov modules with ribbon connectors

here is a reddit comment about working with the ov2640 and the arduino platform

relate to all the above.

compare

ESP32-CAM

SDcard storage

M5Satck

serial to usb
charging circuit
charge connector
grove connector
form factor
no PSRAM ?!
pinout diff with esp32-cam

getting a pic - superseded

with help of me-no-dev i got the esp32-cam working!, below is just all i tried before this nudge i got.

TLDR: this module comes with a bootloader, but no app. and flashing one didn't get me the results i can work with ATM.

esp32-cam delivery via coolcomponents (3dayups), started by powering it with ftdi breakout (3v/5v) switch.
but it couldn't get over the startup peaks (after it stabilize on ~160mA).

using cam-qr code arch and esf-idf are in package war. went with esp32env docker

PRO TIP - You can change the baud rate and other properties with make menuconfig which will drop you in esp-idf's project configuration menu.
I recommend selecting a baud rate of 921600 as it will reduce flashing times to around 4-5 seconds.

espfuse looks cute to probe > https://esp32.com/viewtopic.php?t=6743

Click to display ⇲

Click to hide ⇱

systemctl start docker
sudo systemctl start docker
echo N | sudo tee /sys/module/overlay/parameters/metacopy
#forking my own as original had several issues
git clone git@github.com:idiot-io/esp32env.git
cd esp32env
make 
make install
sudo cp esp32env /usr/local/bin
sudo chmod a+x /usr/local/bin/esp32env

git clone https://github.com/donny681/ESP32_CAMERA_QR
cd ESP32_CAMERA_QR
esp32env make menuconfig  # Instead of the traditional `make menuconfig`
esp32env make flash  # Instead of `make flash`
esp32env make monitor # serial comm built in esp-idf, cute see https://docs.espressif.com/projects/esp-idf/en/latest/get-started/#monitor

it's still not there, had to fix kernel line and massage the dockerfile.

Click to display ⇲

Click to hide ⇱

esptool.py v2.6-beta1
Flashing binaries to serial port /dev/tty.SLAB_USBtoUART (app at offset 0x10000 )...
esptool.py v2.6-beta1
Serial port /dev/tty.SLAB_USBtoUART
Traceback (most recent call last):
  File "/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2865, in <module>
    _main()
  File "/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2858, in _main
    main()
  File "/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2565, in main
    esp = chip_class(each_port, initial_baud, args.trace)
  File "/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 213, in __init__
    self._port = serial.serial_for_url(port)
  File "/usr/lib/python2.7/dist-packages/serial/__init__.py", line 85, in serial_for_url
    instance.open()
  File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 294, in open
    raise SerialException(msg.errno, "could not open port %s: %s" % (self._port, msg))
serial.serialutil.SerialException: [Errno 2] could not open port /dev/tty.SLAB_USBtoUART: [Errno 2] No such file or directory: '/dev/tty.SLAB_USBtoUART'
/esp/esp-idf/components/esptool_py/Makefile.projbuild:62: recipe for target 'flash' failed

solved by this comment

then

Click to display ⇲

Click to hide ⇱

esptool.py v2.6-beta1
Flashing binaries to serial port /dev/ttyUSB0 (app at offset 0x10000 )...
esptool.py v2.6-beta1
Serial port /dev/ttyUSB0
Connecting........_____....._____....._____....._____....._____....._____....._____

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet content
/esp/esp-idf/components/esptool_py/Makefile.projbuild:62: recipe for target 'flash' failed
make: *** [flash] Error 2

short GP0&GP2 to ground and disconnect camera
dont forget you have to reset the esp32 (btn) when you want to flash

then disconnect GP0 and GP2 , reconnect camera, boot and…
YAY!

but…

to get the serial data run (monitor)

esp32env make monitor

on first boot i get the following log

Click to display ⇲

Click to hide ⇱

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:5868
load:0x40078000,len:9176
load:0x40080000,len:6064
entry 0x40080330
[0;32mI (28) boot: ESP-IDF v3.1.1 2nd stage bootloader[0m
[0;32mI (28) boot: compile time 14:22:34[0m
[0;32mI (28) boot: Enabling RNG early entropy source...[0m
0;32mI (33) boot: SPI Speed      : 40MHz[0m
[0;32mI (37) boot: SPI Mode       : DIO[0m
[0;32mI (41) boot: SPI Flash Size : 4MB[0m
[0;32mI (45) boot: Partition Table:[0m
[0;32mI (48) boot: ## Label            Usage          Type ST Offset   Length[0m
[0;32mI (56) boot:  0 nvs              WiFi data        01 02 00009000 00006000[0m
[0;32mI (63) boot:  1 phy_init         RF data          01 01 0000f000 00001000[0m
[0;32mI (71) boot:  2 factory          factory app      000 00010000 00100000[0m
[0;32mI (78) boot: End of partition table[0m
[0;32mI (82) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x16240 ( 90688) map[0m
[0;32mI (123) esp_image: segment 1: paddr=0x00026268 vaddr=0x3ffb0000 size=0x034d0 ( 13520) load[0m
[0;32mI (128) esp_image: segment 2: paddr=0x00029740 vaddr=0x3ffb34d0 size=0x00000 (     0) load[0m
[0;32mI (130) esp_image: segment 3: paddr=0x00029748 vaddr=0x40080000 size=0x00400 (  1024) load[0m
[0;32mI (139) esp_image: segment 4: paddr=0x00029b50 vaddr=0x40080400 size=0x064c0 ( 25792) load[0m
[0;32mI (158) esp_image: segment 5: paddr=0x00030018 vaddr=0x400d0018 size=0x6e4b8 451768) map[0m
[0;32mI (317) esp_image: segment 6: paddr=0x0009e4d8 vaddr=0x400868c0 size=0x0ab48 ( 43848) load[0m
[0;32mI (335) esp_image: segment 7: paddr=0x000a9028 vaddr=0x400c0000 size=0x00000 (     0) load[0m
[0;32mI (336) esp_image: segment 8: paddr=0x000a9030 vaddr=0x50000000 size=0x00000 (     0) load[0m
[0;32mI (352) boot: Loaded app from partition at offset 0x10000[0m
[0;32mI (352) boot: Disabling RNG early entropy source...[0m
[0;32mI (354) cpu_start: Pro cpu up.[0m
[0;32mI (357) cpu_start: Starting app cpu, entry point is 0x40081034[0m
[0;32mI (0) cpu_start: App cpu up.[0m
[0;32mI (368) heap_init: Initializing. RAM available for dynamic allocation:[0m
[0;32mI (375) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM[0m
[0;32mI (381) heap_init: At 3FFB9500 len 00026B00 (154 KiB): DRAM[0m
[0;32mI (387) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM[0m
[0;32mI (393) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM[0m
[0;32mI (400) hea_init: At 40091408 len 0000EBF8 (58 KiB): IRAM[0m
[0;32mI (406) cpu_start: Pro cpu start user code[0m
[0;32mI (200) cpu_start: Starting scheduler on PRO CPU.[0m
[0;32mI (0) cpu_start: Starting scheduler on APP CPU.[0m
[0;32mI (246) I2S: DMA Malloc info, datalen=blocksize=256, dma_buf_count=8[0m
[0;32mI (246) I2S: PLL_D2: Req RATE: 78125, real rate: 78125.000, BITS: 16, CLKM: 8, BCK: 8, MCLK: 20000000.000, SCLK: 2500000.000000, diva: 64, divb: 0[0m
[0;32mI (256) camera_xclk: PIN_CTRL before:3ff[0m
[0;32mI (266) camera_xclk: PIN_CTRL after:7fff[0m
[0;32mI (4326) camera_demo: Detected OV2640 camera, using JPEG format[0m
[0;32mI (4546) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE[0m
[0;32mI (4546) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE[0m
[0;32mI (4636) phy: phy_version: 400, b6198fa, Sep  3 2018, 15:11:06, 0, 0[0m
[0;32mI (4636) camera_demo: Connecting to "tomato-2.4GHz"[0m
[0;32mI (6546) event: sta ip: 192.168.0.93, mask: 2.255.255.0, gw: 192.168.0.1[0m
[0;32mI (6546) camera_demo: Connected[0m
[0;32mI (6546) camera_demo: Open http://192.168.0.93/jpg for single image/jpg image[0m
[0;32mI (6556) camera_demo: Open http://192.168.0.93/jpg_stream for multipart/x-mixed-replace stream of JPEGs[0m
[0;32mI (6566) camera_demo: Free heap: 188012[0m
[0;32mI (6566) camera_demo: Camera demo ready[0m
[0;32mI (28746) camera: Frame 0 done in 158 ms[0m
[0;32mI (28906) camera: Frame 1 done in 155 ms[0m
[0;32mI (29066) camera: Frame 2 done in 156 ms[0m

trying to run esptool (the flasher) without building to faster debug, bin is here /esp/project/build/esp32-cam-demo.bin
to build the app only, without the bootloader you can run (see docs)

esp32env make app-flash

first image from the moon…

this datamush was also apprant in the ENABLE_TEST_PATTERN

phase2

now the image i got is pretty bad.
im now learning the config system for make and specificly kconfig

esp32env vi /esp/project/sdkconfig

i later used the recommended

esp32env make makeconfig

for an ncurses text editor. upped the logging to debug instead of the default info and enabled esp32-cam> test pattern

I (208210) camera: Frame 262 done in 138 ms
D (211100) camera: Waiting for positive edge on VSYNC
D (211170) camera: Got VSYNC
D (211170) camera: Waiting for frame

but hey, thats not the test pattern i was looking for

config ENABLE_TEST_PATTERN
	bool "Enable test pattern on camera output"
	default n
	help
		Configure the camera module to output test pattern instead of live image.
		
		Use this option to troubleshoot image issues like noise,
		distortion, not legible and missing live image.
		Instead, module will generate regular vertical bars 
		in shades from dark to white.

Click to display ⇲

Click to hide ⇱

I (4720) phy: phy_version: 4000, b6198fa, Sep  3 2018, 15:11:06, 0, 0
D (4720) event: SYSTEM_EVENT_STA_START
I (4720) camera_demo: Connecting to "tomato-2.4GHz"
D (5550) nvs: nvs_set sta.chan 1 1
D (5550) nvs: nvs_set_blob sta.apinfo 700
D (5550) event: SYSTEM_EVENT_STA_CONNECTED, ssid:tomato-2.4GHz, ssid_len:13, bssid:80:26:89:0d:55:04, channel:1, authmode:3
D (5550) tcpip_adapter: dhcp client init ip/mask/gw to all-0
D (5560) tcpip_adapter: if0 start ip lost tmr: enter
D (5560) tcpip_adapter: if0 start ip lost tmr: no need start because netif=0x3ffcffa0 interval=120 ip=0
D (5570) tcpip_adapter: dhcp client start successfully
D (6970) tcpip_adapter: if0 dhcpc cb
D (6970) tcpip_adapter: if0 ip changed=1
D (6970) event: SYSTEM_EVENT_STA_GOT_IP, ip:192.168.0.89, mask:255.255.255.0, gw:192.168.0.1
I (6970) event: sta ip: 192.168.0.89, mask: 255.255.255.0, gw: 192.168.0.1
I (6980) camera_demo: Connected
I (6980) camera_demo: Open http://192.168.0.89/jpg for single image/jpg image
I (6990) camera_demo: Open http://192.168.0.89/jpg_stream for multipart/x-mixed-replace stream of JPEGs
I (7000) camera_demo: Free heap: 188320
I (7000) camera_demo: Camera demo ready
D (24580) http_server: Got URI: '/jpg_stream'
D (24580) http_server: Got header: 'Host': '192.168.0.89'
D (24580) http_server: Got header: 'Connection': 'keep-alive'
D (24580) http_server: Got header: 'Upgrade-Insecure-Requests': '1'
D (24590) http_server: Got header: 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.80 Safari/537.36'
D (24600) http_server: Got header: 'DNT': '1'
D (24610) http_server: Got header: 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8'
D (24620) http_server: Got header: 'Accept-Encoding': 'gzip, deflate'
D (24630) http_server: Got header: 'Accept-Language': 'en-US,en;q=0.9,he;q=0.8,und;q=0.7'
D (29630) camera: Waiting for positive edge on VSYNC
D (29650) camera: Got VSYNC
D (29650) camera: Waiting for frame
I (29730) camera: Frame 0 done in 108 ms
D (29740) camera: Waiting for positive edge on VSYNC
D (29810) camera: Got VSYNC
D (29810) camera: Waiting for frame
I (29890) camera: Frame 1 done in 155 ms
D (29900) camera: Waiting for positive edge on VSYN

digging some dirt on the esp32 floating point performance, source

phase 3

micropython?

micropython on esp32 guide

sudo pip3 install esptool adafruit-ampy
esptool.py --chip esp32 -p /dev/ttyUSB0 --baud 921600 write_flash \
-z 0x1000 esp32-20181215-v1.9.4-757-g39eef2708.bin 
ampy /dev/ttyUSB0 ls
picocom /dev/ttyUSB0 -b 115200

if you get wired curropt messages

#Try resetting the filesystem using:
import uos
import flashbdev
uos.VfsFat.mkfs(flashbdev.bdev)

but why bother, no i2s support yet in micropython

phase 4

so.. i gave up on the ESP32_CAMERA_QR github and went looking for another code
found a another projects fork that actually outputs an image
tmrttmrt/esp32-cam-demo.
but super slowly (1600×1200)…

revisiting ESP32_CAM_QR i went ahead and in sdkconfig enabled

CONFIG_SPIRAM_SUPPORT=y

running now

esp32env make app-flash

opened a few more options related to SPRAM

Click to display ⇲

Click to hide ⇱

* SPI RAM config
*
Initialize SPI RAM when booting the ESP32 (SPIRAM_BOOT_INIT) [Y/n/?] (NEW) 
  Ignore PSRAM when not found (SPIRAM_IGNORE_NOTFOUND) [N/y/?] (NEW) 
SPI RAM access method
  1. Integrate RAM into ESP32 memory map (SPIRAM_USE_MEMMAP) (NEW)
  2. Make RAM allocatable using heap_caps_malloc(..., MALLOC_CAP_SPIRAM) (SPIRAM_USE_CAPS_ALLOC) (NEW)
> 3. Make RAM allocatable using malloc() as well (SPIRAM_USE_MALLOC) (NEW)
choice[1-3?]: 
Type of SPI RAM chip in use
> 1. ESP-PSRAM32 or IS25WP032 (SPIRAM_TYPE_ESPPSRAM32) (NEW)
choice[1]: 1
Set RAM clock speed
> 1. 40MHz clock speed (SPIRAM_SPEED_40M) (NEW)
choice[1]: 1
Run memory test on SPI RAM initialization (SPIRAM_MEMTEST) [Y/n/?] (NEW) 
Enable workaround for bug in SPI RAM cache for Rev1 ESP32s (SPIRAM_CACHE_WORKAROUND) [Y/n/?] (NEW) 
Maximum malloc() size, in bytes, to always put in internal memory (SPIRAM_MALLOC_ALWAYSINTERNAL) [16384] (NEW) 
Try to allocate memories of WiFi and LWIP in SPIRAM firstly. If failed, allocate internal memory (WIFI_LWIP_ALLOCATION_FROM_SPIRAM_FIRST) [N/y/?] (NEW) 
Reserve this amount of bytes for data that specifically needs to be in DMA or internal memory (SPIRAM_MALLOC_RESERVE_INTERNAL) [32768] (NEW) 
Allow external memory as an argument to xTaskCreateStatic (SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY) [N/y/?] (NEW) 
*
* FreeRTOS
*
Run FreeRTOS only on first core (FREERTOS_UNICORE) [N/y/?] n
Xtensa timer to use as the FreeRTOS tick source
> 1. Timer 0 (int 6, level 1) (FREERTOS_CORETIMER_0)
  2. Timer 1 (int 15, level 3) (FREERTOS_CORETIMER_1)
choice[1-2?]: 1
Tick rate (Hz) (FREERTOS_HZ) [100] 100
Halt when an SMP-untested function is called (FREERTOS_ASSERT_ON_UNTESTED_FUNCTION) [Y/n/?] y
Check for stack overflow
  1. No checking (FREERTOS_CHECK_STACKOVERFLOW_NONE)
  2. Check by stack pointer value (FREERTOS_CHECK_STACKOVERFLOW_PTRVAL)
> 3. Check using canary bytes (FREERTOS_CHECK_STACKOVERFLOW_CANARY)
choice[1-3?]: 3
Set a debug watchpoint as a stack overflow check (FREERTOS_WATCHPOINT_END_OF_STACK) [N/y/?] n
Enable backtrace from interrupt to task context (FREERTOS_INTERRUPT_BACKTRACE) [Y/n/?] y
Number of thread local storage pointers (FREERTOS_THREAD_LOCAL_STORAGE_POINTERS) [1] 1
FreeRTOS assertions
> 1. abort() on failed assertions (FREERTOS_ASSERT_FAIL_ABORT)
  2. Print and continue failed assertions (FREERTOS_ASSERT_FAIL_PRINT_CONTINUE)
  3. Disable FreeRTOS assertions (FREERTOS_ASSERT_DISABLE)
choice[1-3?]: 1
Idle Task stack size (FREERTOS_IDLE_TASK_STACKSIZE) [1024] 1024
ISR stack size (FREERTOS_ISR_STACKSIZE) [1536] 1536
Use FreeRTOS legacy hooks (FREERTOS_LEGACY_HOOKS) [N/y/?] n
Maximum task name length (FREERTOS_MAX_TASK_NAME_LEN) [16] 16
Enable FreeRTOS static allocation API (SUPPORT_STATIC_ALLOCATION) [Y/?] y
  Enable static task clean up hook (ENABLE_STATIC_TASK_CLEAN_UP_HOOK) [N/y/?] (NEW) 
FreeRTOS timer task priority (TIMER_TASK_PRIORITY) [1] 1
FreeRTOS timer task stack size (TIMER_TASK_STACK_DEPTH) [2048] 2048
FreeRTOS timer queue length (TIMER_QUEUE_LENGTH) [10] 10
FreeRTOS queue registry size (FREERTOS_QUEUE_REGISTRY_SIZE) [0] 0
Enable FreeRTOS trace facility (FREERTOS_USE_TRACE_FACILITY) [N/y/?] n
Enable FreeRTOS to collect run time stats (FREERTOS_GENERATE_RUN_TIME_STATS) [N/y/?] n
#
# configuration written to /esp/project/sdkconfig

i will copy relevant options from the tmrttmrt fork mentioned above, as best i can

-CONFIG_SPIRAM_SUPPORT=
+CONFIG_SPIRAM_SUPPORT=y
+
+#
+# SPI RAM config
+#
+CONFIG_SPIRAM_BOOT_INIT=y
+CONFIG_SPIRAM_IGNORE_NOTFOUND=
+CONFIG_SPIRAM_USE_MEMMAP=
+CONFIG_SPIRAM_USE_CAPS_ALLOC=
+CONFIG_SPIRAM_USE_MALLOC=y
+CONFIG_SPIRAM_TYPE_ESPPSRAM32=y
+CONFIG_SPIRAM_SIZE=4194304
+CONFIG_SPIRAM_SPEED_40M=y
+CONFIG_SPIRAM_MEMTEST=y
+CONFIG_SPIRAM_CACHE_WORKAROUND=y
+CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=16384
+CONFIG_WIFI_LWIP_ALLOCATION_FROM_SPIRAM_FIRST=
+CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=32768
+CONFIG_SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY=

and then start log looks like this

Click to display ⇲

Click to hide ⇱

rst:0x1 (POWERON_RESET),boot:0x1b (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:5868
load:0x40078000,len:9288
load:0x40080000,len:6064
entry 0x40080330
I (28) boot: ESP-IDF v3.1.1 2nd stage bootloader
I (28) boot: compile time 20:25:53
I (28) boot: Enabling RNG early entropy source...
I (33) boot: SPI Speed      : 40MHz
I (37) boot: SPI Mode       : DIO
I (41) boot: SPI Flash Size : 4MB
I (45) boot: Partition Table:
I (48) boot: ## Label            Usage          Type ST Offset   Length
I (56) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (63) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (71) boot:  2 factory          factory app      00 00 00010000 00100000
I (78) boot: End of partition table
I (82) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x1c0c0 (114880) map
I (131) esp_image: segment 1: paddr=0x0002c0e8 vaddr=0x3ffb0000 size=0x036f8 ( 14072) load
I (137) esp_image: segment 2: paddr=0x0002f7e8 vaddr=0x3ffb36f8 size=0x00000 (     0) load
I (138) esp_image: segment 3: paddr=0x0002f7f0 vaddr=0x40080000 size=0x00400 (  1024) load
I (148) esp_image: segment 4: paddr=0x0002fbf8 vaddr=0x40080400 size=0x00418 (  1048) load
I (157) esp_image: segment 5: paddr=0x00030018 vaddr=0x400d0018 size=0x77ea8 (491176) map
I (337) esp_image: segment 6: paddr=0x000a7ec8 vaddr=0x40080818 size=0x15b30 ( 88880) load
I (374) esp_image: segment 7: paddr=0x000bda00 vaddr=0x400c0000 size=0x00000 (     0) load
I (374) esp_image: segment 8: paddr=0x000bda08 vaddr=0x50000000 size=0x00000 (     0) load
I (394) boot: Loaded app from partition at offset 0x10000
I (394) boot: Disabling RNG early entropy source...
I (396) spiram: SPI RAM mode: flash 40m sram 40m
I (400) spiram: PSRAM initialized, cache is in low/high (2-core) mode.
I (407) cpu_start: Pro cpu up.
I (411) cpu_start: Starting app cpu, entry point is 0x4008136c
I (0) cpu_start: App cpu up.
I (1310) spiram: SPI SRAM memory test OK
I (1311) heap_init: Initializing. RAM available for dynamic allocation:
D (1311) heap_init: New heap initialised at 0x3ffae6e0
I (1316) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
D (1322) heap_init: New heap initialised at 0x3ffb97b0
I (1327) heap_init: At 3FFB97B0 len 00026850 (154 KiB): DRAM
I (1334) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
I (1340) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
D (1347) heap_init: New heap initialised at 0x40096348
I (1352) heap_init: At 40096348 len 00009CB8 (39 KiB): IRAM
I (1358) cpu_start: Pro cpu start user code
I (1363) spiram: Adding pool of 4096K of external SPI memory to heap allocator
I (1371) spiram: Reserving pool of 32K of internal memory for DMA/internal allocations
D (1387) clk: RTC_SLOW_CLK calibration value: 3185024
D (54) intr_alloc: Connected src 46 to int 2 (cpu 0)
D (55) intr_alloc: Connected src 57 to int 3 (cpu 0)
D (55) intr_alloc: Connected src 24 to int 9 (cpu 0)
I (60) cpu_start: Starting scheduler on PRO CPU.
D (0) intr_alloc: Connected src 25 to int 2 (cpu 1)
I (0) cpu_start: Starting scheduler on APP CPU.
D (75) heap_init: New heap initialised at 0x3ffe0440
D (85) heap_init: New heap initialised at 0x3ffe4350
D (95) nvs: nvs_flash_init_custom partition=nvs start=9 count=6
D (105) camera: Enabling XCLK output
D (105) intr_alloc: Connected src 33 to int 12 (cpu 0)
D (105) I2S: Addr[0] = 1073471164
D (115) I2S: Addr[1] = 1073471424
D (115) I2S: Addr[2] = 1073471684
D (115) I2S: Addr[3] = 1073471944
D (125) I2S: Addr[4] = 1073472204
D (125) I2S: Addr[5] = 1073472464
D (125) I2S: Addr[6] = 1073472724
D (135) I2S: Addr[7] = 1073472984
I (135) I2S: DMA Malloc info, datalen=blocksize=256, dma_buf_count=8
I (145) I2S: PLL_D2: Req RATE: 78125, real rate: 78125.000, BITS: 16, CLKM: 8, BCK: 8, MCLK: 20000000.000, SCLK: 2500000.000000, diva: 64, divb: 0
D (155) I2S: data: out 189, in: -1, ws: 26, bck: 24
I (165) camera_xclk: PIN_CTRL before:3ff
I (165) camera_xclk: PIN_CTRL after:7fff
D (165) camera: Initializing SSCB
D (175) camera: Resetting camera
D (4175) camera: Searching for camera address
D (4185) camera: Detected camera at address=0x30
D (4195) camera: Camera PID=0x26 VER=0x42 MIDL=0x7f MIDH=0xa2
D (4195) camera: Doing SW reset of sensor
I (4235) camera_demo: Detected OV2640 camera, using JPEG format
D (4265) camera: Setting frame size to 160x120
D (4325) camera: Test pattern enabled
D (4325) camera: in_bpp: 2, fb_bpp: 2, fb_size: 3840, mode: 0, width: 160 height: 120
D (4325) camera: Allocating frame buffer (3840 bytes)
D (4325) camera: Initializing I2S and DMA
D (4335) intr_alloc: Connected src 32 to int 13 (cpu 0)
D (4335) camera: Line width (for DMA): 1280 bytes
D (4345) camera: DMA buffer size: 1280, DMA buffers per line: 1
D (4345) camera: DMA buffer count: 4
D (4355) camera: Allocating DMA buffer #0, size=1280
D (4355) camera: Allocating DMA buffer #1, size=1280
D (4365) camera: Allocating DMA buffer #2, size=1280
D (4365) camera: Allocating DMA buffer #3, size=1280
D (4375) camera: Initializing GPIO interrupts
D (4375) intr_alloc: Connected src 22 to int 17 (cpu 0)
D (4455) camera: Init done
D (4455) nvs: nvs_open_from_partition misc 1
D (4455) nvs: nvs_get_str_or_blob log
I (4455) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (4465) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
D (4475) nvs: nvs_open_from_partition nvs.net80211 1
D (4475) nvs: nvs_get opmode 1
D (4475) nvs: nvs_get_str_or_blob sta.ssid
D (4485) nvs: nvs_get_str_or_blob sta.mac
D (4485) nvs: nvs_get sta.authmode 1
D (4495) nvs: nvs_get_str_or_blob sta.pswd
D (4495) nvs: nvs_get_str_or_blob sta.pmk
D (4495) nvs: nvs_get sta.chan 1
D (4505) nvs: nvs_get auto.conn 1
D (4505) nvs: nvs_get bssid.set 1
D (4505) nvs: nvs_get_str_or_blob sta.bssid
D (4515) nvs: nvs_get sta.lis_intval 2
D (4515) nvs: nvs_get sta.phym 1
D (4525) nvs: nvs_get sta.phybw 1
D (4525) nvs: nvs_get_str_or_blob sta.apsw
D (4525) nvs: nvs_get_str_or_blob sta.apinfo
D (4535) nvs: nvs_get sta.scan_method 1
D (4535) nvs: nvs_get sta.sort_method 1
D (4545) nvs: nvs_get sta.minrssi 1
D (4545) nvs: nvs_get sta.minauth 1
D (4545) nvs: nvs_get_str_or_blob ap.ssid
D (4555) nvs: nvs_get_str_or_blob ap.mac
D (4555) nvs: nvs_get_str_or_blob ap.passwd
D (4565) nvs: nvs_get_str_or_blob ap.pmk
D (4565) nvs: nvs_get ap.chan 1
D (4565) nvs: nvs_get ap.authmode 1
D (4575) nvs: nvs_get ap.hidden 1
D (4575) nvs: nvs_get ap.max.conn 1
D (4575) nvs: nvs_get bcn.interval 2
D (4585) nvs: nvs_get ap.phym 1
D (4585) nvs: nvs_get ap.phybw 1
D (4585) nvs: nvs_get ap.sndchan 1
D (4595) nvs: nvs_get lorate 1
D (4595) nvs: nvs_set_blob sta.mac 6
D (4595) nvs: nvs_set_blob ap.mac 6
D (4605) nvs: nvs_set_blob sta.ssid 36
D (4605) nvs: nvs_set_blob sta.pswd 65
D (4615) nvs: nvs_set bssid.set 1 0
D (4615) nvs: nvs_set sta.lis_intval 2 3
D (4615) nvs: nvs_set sta.scan_method 1 0
D (4625) nvs: nvs_set sta.sort_method 1 0
D (4625) nvs: nvs_set sta.minrssi 1 -127
D (4625) nvs: nvs_set sta.minauth 1 0
D (4635) nvs: nvs_set_blob sta.apsw 2
D (4635) nvs: nvs_set_blob sta.apinfo 700
D (4645) RTC_MODULE: Wi-Fi takes adc2 lock.
D (4645) phy_init: loading PHY init data from application binary
D (4645) nvs: nvs_open_from_partition phy 0
D (4655) nvs: nvs_get cal_version 4
D (4655) nvs: nvs_get_str_or_blob cal_mac
D (4655) nvs: nvs_get_str_or_blob cal_data
D (4665) nvs: nvs_close 3
I (4745) phy: phy_version: 4000, b6198fa, Sep  3 2018, 15:11:06, 0, 0
D (4745) event: SYSTEM_EVENT_STA_START
I (4745) camera_demo: Connecting to "tomato-2.4GHz"
D (5715) nvs: nvs_set sta.chan 1 1
D (5715) nvs: nvs_set_blob sta.apinfo 700
D (5715) event: SYSTEM_EVENT_STA_CONNECTED, ssid:tomato-2.4GHz, ssid_len:13, bssid:80:26:89:0d:55:04, channel:1, authmode:3
D (5715) tcpip_adapter: dhcp client init ip/mask/gw to all-0
D (5725) tcpip_adapter: if0 start ip lost tmr: enter
D (5725) tcpip_adapter: if0 start ip lost tmr: no need start because netif=0x3ffd054c interval=120 ip=0
D (5735) tcpip_adapter: dhcp client start successfully
D (6985) tcpip_adapter: if0 dhcpc cb
D (6985) tcpip_adapter: if0 ip changed=1
D (6985) event: SYSTEM_EVENT_STA_GOT_IP, ip:192.168.0.89, mask:255.255.255.0, gw:192.168.0.1
I (6985) event: sta ip: 192.168.0.89, mask: 255.255.255.0, gw: 192.168.0.1
I (6995) camera_demo: Connected
I (6995) camera_demo: Open http://192.168.0.89/jpg for single image/jpg image
I (7005) camera_demo: Open http://192.168.0.89/jpg_stream for multipart/x-mixed-replace stream of JPEGs
I (7015) camera_demo: Free heap: 4381092
I (7025) camera_demo: Camera demo ready

still debug doesnt look as expected (lines), and disabling its still shit…

back to ttmmtt fork, now with a change at app_main.c

#define CAMERA_FRAME_SIZE CAMERA_FS_QQVGA //CAMERA_FS_UXGA

i suspect the slow framerate (0.05fps) and finkness is just there.
ESP8266 was winXP, ESP32 is windows vista!

phase#5

now i found esp32-camera espresiff github repo, maybe it's the key.
it needs an SPRAM board so i will return to the ESP32-CAM module, that gave me lots of grief
this one needs more work to adapt to my virtual dev environment (esp32env), as in

clone the hello-world example

mkdir -p ~/dev/esp32-camera-test/components
cp /esp-idf-master/examples/get-started/hello_world/ ~/dev/esp32-camera-test

add the repo to it

cd ~/dev/esp32-camera-test/components
git clone https://github.com/espressif/esp32-camera

compile/flash

esp32env make menuconfig
esp32env make -j4 all
esp32env make -j4 flash

fuck this shit, arduino support for the esp32-camera is out!
but…. still not fully backed.

trying a fork of esp32-camera by M5 Stack didn't result in much , 0x20001 error

error 
I (102) camera: Searching for camera address
E (112) camera: Camera probe failed with error 0x20001
E (112) camera: Camera Init Failed

full boot log

Click to display ⇲

Click to hide ⇱

  rst:0x1 (POWERON_RESET),boot:0x1b (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:5980
load:0x40078000,len:8964
load:0x40080400,len:6360
entry 0x40080728
I (28) boot: ESP-IDF v3.3-beta1-44-gda2116f55 2nd stage bootloader
I (28) boot: compile time 22:57:44
I (28) boot: Enabling RNG early entropy source...
I (34) boot: SPI Speed      : 40MHz
I (38) boot: SPI Mode       : DIO
I (42) boot: SPI Flash Size : 4MB
I (47) boot: Partition Table:
I (50) boot: ## Label            Usage          Type ST Offset   Length
I (57) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (65) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (72) boot:  2 factory          factory app      00 00 00010000 00100000
I (80) boot: End of partition table
I (84) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x1b5dc (112092) map
I (132) esp_image: segment 1: paddr=0x0002b604 vaddr=0x3ff80000 size=0x00000 (     0) load
I (132) esp_image: segment 2: paddr=0x0002b60c vaddr=0x3ff80000 size=0x00000 (     0) load
I (139) esp_image: segment 3: paddr=0x0002b614 vaddr=0x3ffb0000 size=0x03088 ( 12424) load
I (152) esp_image: segment 4: paddr=0x0002e6a4 vaddr=0x3ffb3088 size=0x00000 (     0) load
I (156) esp_image: segment 5: paddr=0x0002e6ac vaddr=0x40080000 size=0x00400 (  1024) load
0x40080000: _WindowOverflow4 at /home/yair/esp/esp-idf/components/freertos/xtensa_vectors.S:1685

I (166) esp_image: segment 6: paddr=0x0002eab4 vaddr=0x40080400 size=0x0155c (  5468) load
I (176) esp_image: segment 7: paddr=0x00030018 vaddr=0x400d0018 size=0x72208 (467464) map
0x400d0018: _stext at ??:?

I (345) esp_image: segment 8: paddr=0x000a2228 vaddr=0x4008195c size=0x13558 ( 79192) load
0x4008195c: timer_list_unlock at /home/yair/esp/esp-idf/components/esp32/esp_timer.c:256

I (376) esp_image: segment 9: paddr=0x000b5788 vaddr=0x400c0000 size=0x00000 (     0) load
I (377) esp_image: segment 10: paddr=0x000b5790 vaddr=0x50000000 size=0x00000 (     0) load
I (383) esp_image: segment 11: paddr=0x000b5798 vaddr=0x50000000 size=0x00000 (     0) load
I (404) boot: Loaded app from partition at offset 0x10000
I (404) boot: Disabling RNG early entropy source...
I (407) spiram: Found 64MBit SPI RAM device
I (411) spiram: SPI RAM mode: flash 40m sram 40m
I (416) spiram: PSRAM initialized, cache is in low/high (2-core) mode.
I (423) cpu_start: Pro cpu up.
I (427) cpu_start: Application information:
I (432) cpu_start: Project name:     camera
I (437) cpu_start: App version:      3435ff5-dirty
I (442) cpu_start: Compile time:     22:57:47
I (447) cpu_start: Compile date:     Dec 17 2018
I (453) cpu_start: ESP-IDF:          v3.3-beta1-44-gda2116f55
I (459) cpu_start: Starting app cpu, entry point is 0x400812f4
0x400812f4: call_start_cpu1 at /home/yair/esp/esp-idf/components/esp32/cpu_start.c:261

I (0) cpu_start: App cpu up.
I (1325) spiram: SPI SRAM memory test OK
I (1325) heap_init: Initializing. RAM available for dynamic allocation:
I (1325) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (1331) heap_init: At 3FFBB068 len 00024F98 (147 KiB): DRAM
I (1338) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (1344) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (1351) heap_init: At 40094EB4 len 0000B14C (44 KiB): IRAM
I (1357) cpu_start: Pro cpu start user code
I (1362) spiram: Adding pool of 4096K of external SPI memory to heap allocator
I (41) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (42) spiram: Reserving pool of 32K of internal memory for DMA/internal allocations
I (82) camera: Enabling XCLK output
I (82) camera: Initializing SSCB
I (82) camera: Resetting camera
I (102) camera: Searching for camera address
E (112) camera: Camera probe failed with error 0x20001
E (112) camera: Camera Init Failed
I (152) wifi: wifi driver task: 3ffca96c, prio:23, stack:3584, core=0
I (152) wifi: wifi firmware version: 328353e
I (152) wifi: config NVS flash: enabled
I (162) wifi: config nano formating: disabled
I (162) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (172) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (192) wifi: Init dynamic tx buffer num: 32
I (192) wifi: Init data frame dynamic rx buffer num: 32
I (192) wifi: Init management frame dynamic rx buffer num: 32
I (202) wifi: Init static tx buffer num: 16
I (202) wifi: Init static rx buffer size: 1600
I (212) wifi: Init static rx buffer num: 10
I (212) wifi: Init dynamic rx buffer num: 32
I (302) phy: phy_version: 4000, b6198fa, Sep  3 2018, 15:11:06, 0, 0
I (302) wifi: mode : sta (24:0a:c4:29:a6:34)
I (302) camera: wifi_init_sta finished.
I (302) camera: connect to ap SSID:tomato-2.4GHz password:lastfall
I (422) wifi: new:<1,1>, old:<1,0>, ap:<255,255>, sta:<1,1>, prof:1
I (1112) wifi: state: init -> auth (b0)
I (1112) wifi: state: auth -> assoc (0)
I (1122) wifi: state: assoc -> run (10)
I (1132) wifi: connected with tomato-2.4GHz, channel 1, bssid = 80:26:89:0d:55:04
I (1142) wifi: pm start, type: 1

I (2612) event: sta ip: 192.168.0.89, mask: 255.255.255.0, gw: 192.168.0.1
I (2612) camera: got ip:192.168.0.89

esp32-cam_2

anonymous@undisclosed.example.com (Anonymous) — Tue, 06 Jul 2021 14:50:16 +0000

im starting a new page as the old one is a bit outdated.

TTgo

playing with the (in)(not)famous TTGO T-Journal

goal: creating a tamper-proof system for scientific data by linking them and their metadata to an unfalsifiable signature in the blockchain.

more informations on this research page: BIDI2021

Receiving the HTTP Stream (multipart/x-mixed-replace | Content-Type: image/jpeg ):

vlc http://172.20.10.8 #(IP of the board)

Saving a Picture with FFMPEG:

ffmpeg -y -i http://172.20.10.8 -ss 0 -vframes 1 -vcodec mjpeg -f image2 tomato.jpg

Saving + Adding a SHA256 MetaData:

ffmpeg -y -i http://172.20.10.8 -ss 0 -vframes 1 -vcodec mjpeg -f image2 tomato.jpg && exiv2 -M"set Exif.Photo.UserComment F902F4FD763A551D5387C224D34A9C9A0B383850386EC1509EB232A49DE5D5F9" tomato.jpg

Reading the MetaData:

exiv2 tomato.jpg

File name: tomato.jpg
File size: 8974 Bytes
MIME type: image/jpeg
Image size: 800x600
Exif comment: F902F4FD763A551D5387C224D34A9C9A0B383850386EC1509EB232A49DE5D5F9

TTgo CAMERA PLUS bigiot

T-Camera Plus Esp32-Dowdq6 8Mb Spram Camera Module Ov2640 1.3 Inch Display Rear Camera(Fish-Eye Rear Camera)

TTGO Camera Plus Standalone Camera firmware

https://www.instructables.com/Arduino-Selfie-Camera/

https://github.com/moononournation/arduino-selfie-camera

Install Arduino IDE https://linuxhint.com/install_arduino_ide_debian_10/

Install ESP32 in the Board manager and choose “ESP32 Dev”“ or install manually thanks to (Debian) https://github.com/espressif/arduino-esp32/blob/master/docs/arduino-ide/debian_ubuntu.md

I had this error:

 File "/home/me/Arduino/hardware/espressif/esp32/tools/esptool/esptool.py", line 38, in <module>
    import serial
ImportError: No module named serial

I have fix this issue with following steps:

    Download the pyserial package from: https://pypi.org/project/pyserial/#files
    tar zxvf pyserial-3.0.tar.gz
    cd pyserial
    sudo python setup.py install

Open the .ino file after downloading code from https://github.com/anonette/NonFungibleScience/tree/main/CAM

Compile and Transfer

AI-thinker

using the esp-cam32 AI-thinker module.

viarandomNerd

output of CameraWebServer

gstreamer to file

gst-launch-1.0 souphttpsrc location=http://192.168.0.85:81/stream do-timestamp=true ! multipartdemux ! image/jpeg,width=640,height=480 ! matroskamux ! filesink location=mjpeg.mkvD

The above pipeline reads a motion JPEG stream from an IP camera using the HTTP protocol, encoded as mime/multipart image/jpeg parts, and writes a Matroska motion JPEG file. The width and height properties are set in the caps to provide the Matroska multiplexer with the information to set this in the header. Timestamps are set on the buffers as they arrive from the camera. These are used by the mime/multipart demultiplexer to emit timestamps on the JPEG-encoded video frame buffers. This allows the Matroska multiplexer to timestamp the frames in the resulting file.

or aas simple as

python/ffmpeg/opencv

install conda env

sudo apt install libgl1-mesa-glx libegl1-mesa libxrandr2 libxrandr2 libxss1 libxcursor1 libxcomposite1 libasound2 libxi6 libxtst6
wget -P /tmp https://repo.anaconda.com/archive/Anaconda3-2020.02-Linux-x86_64.sh
bash /tmp/https://repo.anaconda.com/archive/Anaconda3-2020.02-Linux-x86_64.sh
conda create --name opencv  -c conda-forge opencv 
conda activate opencv
pip install opencv-contrib-python
python testSource.py 
['FFMPEG', 'GSTREAMER', 'INTEL_MFX', 'MSMF', 'V4L2', 'CV_IMAGES', 'CV_MJPEG', 'UEYE']
['GSTREAMER', 'MSMF', 'V4L2', 'UEYE']

copypaste this to this

https://github.com/easytarget/esp32-cam-webserver

invest time in

https://github.com/geeksville/Micro-RTSP - library which can be used to serve up RTSP streams from resource constrained MCUs

etching

anonymous@undisclosed.example.com (Anonymous) — Sat, 14 Sep 2019 08:36:47 +0000

printed_circuit_board_gold_plating_demo_-_pcb_repair_kit_-_pen_plating-3a_4jhxp458.mp4
Printed Circuit Board Gold Plating Demo - PCB Repair Kit - Pen Plating youtube

goldplating-fb.mp4

24K-Brush-Gold-Plating-Solution-250-mL

evxinograd

anonymous@undisclosed.example.com (Anonymous) — Thu, 29 Aug 2019 22:07:28 +0000

facebook_video_10217512409375500-10217512409375500.mp4

flexiblestickypcbfabrication

anonymous@undisclosed.example.com (Anonymous) — Thu, 03 Sep 2020 12:11:44 +0000

DIY Low Cost Flexible Sticky PCB Fabrication

Zohar Messeca Fara | idiot.io 2020

Materials:	Chemicals:	Tools:	Software:
Copper Tape 50mm Kapton Tape 50mm Masking Tape 20mm Sellotape (clear) A4 Printer Paper A4 pvc for laser printer Steel Wool	PhotoSensitive Dry Film Sodium Carbonate Ferric Chloride Citric Acid Acetone	Ruler (30cm) Precision Knife Scissors Laser Printer Laminator (A4) UV Box Etching Tank Timer Scale Disposable Gloves Kitchen Towel Cotton Ball	Inkscape

Process:

1 . Preparing Flexible Copper Tape Clad


a) Remove copper tape gently from the application paper.	b) Attach application paper glossy side To the kapton tape sticky side.	c) Cut kapton tape.


d) Apply copper tape on kapton tape upper side.	e) Clean copper side gently with steel wool.	f) Flexible clad is ready!

2 . Applying PhotoSensitive Dry Film on Flexible Copper Tape Clad



a) The PhotoSensitive dry Film is sensitive to UV light do this part in a dark room.	b) Cut a piece of PhotoSensitive Dry Film at the size of the copper clad.	c) Remove protective cover from one side of The PhotoSensitive Dry Film.


d) Add few drops of water on the copper clad and apply The uncovered side of PhotoSensitive Dry Film onto the copper clad. try to avoid air bubbles wipe the clad gently with a kitchen towel from center to edges.	e) Place the copper clad inside two A4 papers folded to half.	f) Feed the folded papers with clad through a hot laminator . do this process twice!

g) Done!!

3 . Circuit PhotoMask Design and PhotoLithography Transfer

Circuit design is made with Inkscape a free open source vector graphics editor
Photolithography Technique uses UV light to transfer a geometric pattern from a photomask (also called an optical mask)
to a photosensitive (light-sensitive) chemical film on the substrate.


a) Design your circuit graphicly with inkscape.	b) Duplicate Circuit design and print on A4 transparent PVC with a laser printer.	c) Cut PhotoMask use a precision knife and ruler.


d) Tape two PhotoMask layers with a clear sellotape. check for alignment and direction!. two layers are used for a darker black color and better light proof.	e) Cut Copper clad at the size of the circuit cut it a bit smaller from the photomask.	f) Position photo mask onto the copper clad and tape it from the bottom side with 20mm masking tape. check for alignment and direction!


h) Place copper clad taped with photomask onto UV light Box face down. lock the UV box lid.	i) Expose to UV light for 1:15 min.	j) Remove photomask from the copper clad keep the clad in a dark place! remove photosensitive dry film top protection layer from the copper clad before developing stage.

4 . Developing Process


a) Prepare Developing solution in a plastic container 2g sodium carbonate : 200 ml water	b) Place the exposed clad in the developer and wait for 3-3.5 minutes. when clad is completely developed, take out from developing solution and rinse the clad gently in water.	c) Place developed clad on a kitchen towel and let it dry.

5 . Etching


a) We use ferric chloride as our etchant based on the Edinburgh Etch for Copper mix 1 liter saturated ferric chloride solution(40%) 200ml tap water, 66.6g citric acid working temperature 50C. work with disposable gloves on etching part!	b) Etching time takes around 7 - 20 min. depends on clad size and copper surface to etch.	c) Once Circuit is fully etched rinse it gently with water. Place Etched Circuit on a kitchen towel and let it dry.

6 . Removing PhotoSensitive Dry Film From Copper Traces


a) Place etched circuit in a plastic container. pour acetone on the circuit and wait few seconds till the photosensitive dry film dissolves.	b) Wipe gently the dissolved photosensitive dry film. use a cotton ball.	c) Once all the photosensitive dry film is removed from copper traces. rinse the circuit with water. Place Etched Circuit on a kitchen towel and let it dry. Done!

flexpcb

anonymous@undisclosed.example.com (Anonymous) — Sat, 07 Aug 2021 18:41:15 +0000

flexible pcb design and ,manufacturing

sources

Guides and PDFS

copper is also infamous for work-hardening and fatigue. If your final application involves repeated creasing or movement of the flex circuit you need to consider high grade Rolled Annealed (RA) foils. Obviously the added step of annealing the foil adds to the cost considerably. But the annealed copper is able to stretch more before fatigue cracking occurs, and is springier in the Z deflection direction - exactly what you want for a flex circuit that will be bending or rolling all the time. This is because the rolling annealing process elongates the grain structure in the planar direction. src

media

foiling

anonymous@undisclosed.example.com (Anonymous) — Sun, 04 Apr 2021 21:50:40 +0000

manufacturing

roller foil foiling laminator

glasses

anonymous@undisclosed.example.com (Anonymous) — Fri, 17 Jul 2020 08:17:48 +0000

pictures from the bitwix workshop

context

youtube > Stan Grof — Lessons from ~4,500 LSD Sessions and Beyond
Stan Grof was EEG monitored with strobe light and under LSD back in 1956

https://www.epilepsy.com/connect/forums/diagnostic-dilemmas-and-testing/closed-eye-eeg-strobe-test-what-normal-reaction

https://en.wikipedia.org/wiki/Electroencephalography

Gaza tracking

Webgazer.js webcam eye tracking on the browser - https://news.ycombinator.com/item?id=23859985

verneetch

2017-03-01_20-09-56.mp4

grillzleda

anonymous@undisclosed.example.com (Anonymous) — Mon, 21 Aug 2023 22:22:41 +0000

video_2023-07-24_00-41-29.mp4

Grillz

making a 100 grillz a night. with leds or other circuits emmbded.
looking into fast casting.

teeth+impression+kit

teeth trays amz amz.de pro
Alginate amz amz.de pro

plaster/gypsum amz.de

DIYT

thingiverse

uv curing?

https://www.aliexpress.com/item/4001163343875.html

L.E.Ds

Dont

dont get metal dental trays. hard to pull out

gripper

anonymous@undisclosed.example.com (Anonymous) — Sun, 07 Apr 2019 19:38:17 +0000

grippers

little gripper

made by lynxmotion

uses C1-T24 shaft spline servo.

like the HS-422

dash
dor

medium gripper

product page

big Gripper

height of LN cup = 12CM
height of claw = 7.62CM

another gripper

product page

gst-examples

anonymous@undisclosed.example.com (Anonymous) — Thu, 05 Nov 2020 22:58:17 +0000

this allow to send an media, even namedpipes, over webrtc

in windows

install visual studio 2019 comunity
get python 3.8+
get meson(0.55+) and ninja

#in "Developer Command Prompt for VS 2019"
git clone https://gitlab.freedesktop.org/gstreamer/gst-examples
cd gst-example
meson build
ninja -C build
cd build/webrtc/sendrecv

webrtc-sendrecv.exe  --peer-id=1 --server=ws://192.168.0.101:8443  --disable-ssl

in linux

get docker

git clone https://gitlab.freedesktop.org/gstreamer -b 1.8 --single-branch
cd gst-ci/docker/fedora
container="gst-ci:webrtc"
sudo docker build -t $container .
docker run -i--name $container --privileged

help

anonymous@undisclosed.example.com (Anonymous) — Thu, 29 Nov 2018 13:32:05 +0000

help and syntax

some helpers to start you with the dokuwiki syntax

the wiki.idiot.io home page is generated using the nspages plugin.

how to create new page

type a non title name in address bar

create it

the change comment will appear under recent part of the start page.

how to export to HTML

add “?do=export_xhtmlbody” to link for html export from this

https://wiki.idiot.io/pcbgreycode

to this

https://wiki.idiot.io/pcbgreycode?do=export_xhtmlbody

more here

how to delete a page

you have to be in admin group to delete
edit page > delete all text > save > page is gone

color styling

with preview of changes, side by side

image hacks

if you host on imgur images you get automatic resizing
just add m (medium), l (large) to the image url.
here is a medium shot, notice the m

{{https://i.imgur.com/P4ScmDU.jpg}}

for local pics add ?400

{{image.jpg?400}}

imgpaste is installed, simply ctrl+v to upload an image and display

video

a space right after the curly braces will align to the left, space on both sides of the link will align to center. this is true to images too.

{{ :fbvideos:video1426446238_10152689458085079.mp4 }}

video1426446238_10152689458085079.mp4

syntax

hmp

anonymous@undisclosed.example.com (Anonymous) — Sat, 01 Apr 2023 11:27:55 +0000

jellypin

I modified the procedure and got amazing results. To 120 ml water, add 80 grams cream of tartar (kroger brand use). Hold at 95 C in a water bath, adding 1 gram sodium bicarbonate (kroger brand) at intervals until all cream of tartar has reacted. Decant and filter with coffee filter. Pour fluid on ceramic plate. Add 20 ml of 99% isopropyl alcohol 5 times at 10 minute intervals. Let stand under a fan for 1 hour and 30 minutes. Longer may yield larger crystals, however these were sufficient for my purposes. Yield is approximately 90 crystals, 40 of which are large (1 cm or more) and uniform. Crystals have a clear appearance.

Using Sodium Hydroxide as the base instead of Sodium Carbonate, has yielded the bast results for me.

from Homemade Piezoelectric Material

hyperledger

anonymous@undisclosed.example.com (Anonymous) — Sat, 01 Dec 2018 10:55:49 +0000

lithopia project hyperledger/fabric guide

https://hyperledger.github.io/composer/latest/integrating/getting-started-rest-api

follow install section make sure you install with node v8.9 use

nvm install v8.9 && nvm use v8.9
npm install -g composer-cli@0.20 composer-rest-server@0.20 generator-hyperledger-composer@0.20 yo

add yourself to the docker group before continuing

sudo usermod -a -G docker $USER
#to get access to that group in your current shell.
newgrp docker

stop at step4

idiot

anonymous@undisclosed.example.com (Anonymous) — Mon, 03 Dec 2018 11:22:59 +0000

IDIOT

Sonoff

tasmota operating system
(but im not going to use, its kinda blackbox. better continue with our iriot github))

includes relay
esp8266 core
large community
a five second press operating system - github

how to get ADC working in tasmota?

github-issue i am working with a nodeMCU, the help in the git-issue sais choose wemos D1 mini but generic

¨Generic",         // Any ESP8266/ESP8285 device like WeMos and NodeMCU hardware (ESP8266)

make a case/housing for it?

mqtt

npm install mqtt-connection --save

ilha

anonymous@undisclosed.example.com (Anonymous) — Tue, 08 Oct 2019 19:52:20 +0000

ilha das flores_aka island of flowers 1989

ilha_das_flores_aka_island_of_flowers_1989_dvdrip_aac_x264-laa.mp4

jetson

anonymous@undisclosed.example.com (Anonymous) — Fri, 03 May 2019 07:13:04 +0000

Xavier

elinux wiki

four-synchronized-4k-cameras
4 x 4K (3840 x 2160) @ 30 fps

Xavier platform supports maximum of four 4-lane MIPI CSI camera interfaces.
e-CAM130_CUXVR board uses this four 4-lane MIPI CSI interface for connecting four 13 MP camera modules

Run the following commands to check and set the power mode to maximum for better performance.

 $ sudo nvpmodel -q
 $ sudo nvpmodel -m 0

Run the Jetson clocks command to achieve maximum frame rate

 $ sudo /home/nvidia/jetson_clocks.sh

nano

MIPI

Serilizer(extender)

The DS90UB953-Q1 serializer is part of TI's FPDLink III device family designed to support high-speed raw data sensors including 2MP imagers at 60-fps and as well as 4MP, 30-fps cameras, satellite RADAR, LIDAR, and Time-of-Flight (ToF) sensors. The chip delivers a 4.16-Gbps forward channel and an ultra-low latency, 50-Mbps bidirectional control channel and supports power over a single coax (PoC) or STP cable. The DS90UB953-Q1 features advanced data protection and diagnostic features to support ADAS and autonomous driving. Together with a companion deserializer, the DS90UB953-Q1 delivers precise multi-camera sensor clock and sensor synchronization.

jetz

anonymous@undisclosed.example.com (Anonymous) — Mon, 04 May 2020 00:28:31 +0000

Jetz

hardware apparatus to track and conform learners\students

five "best" student spying tools for 2020

junkcnc

anonymous@undisclosed.example.com (Anonymous) — Tue, 18 Dec 2018 13:27:04 +0000

we got grbl-servo mod running on the contraption
it currently running a grbl-servo mod that uses pin11 as pwm for the tiny servo

see the grbl wiki for some tips> https://github.com/gnea/grbl/wiki

other options, Grbl-esp32

bCNC

bCNC is a gui im trying

release

https://github.com/vlachoudis/bCNC/releases

manual install

needs python2.7, so we will use miniconda to manage python versions

so in CMD

#use chocolate to install from cmd, or just run the install above
choco install miniconda
#create virtual environment
conda create --name py2k python=2
activate py2k
#install dependencies
conda install pyserial numpy Pillow PyHamcrest argparse
pip install --upgrade bCNC
#pip complains so i 
pip install argparse
pip install --upgrade git+https://github.com/vlachoudis/bCNC
pushd c:\bin
git clone https://github.com/vlachoudis/bCNC
cd bCNC
pip install . #in git directory, note the dot
pip install --upgrade bCNC

to run

#make sure you're in the virtualenv we set up before
activate py2k
python -m bCNC

ldgraphy

anonymous@undisclosed.example.com (Anonymous) — Wed, 11 Nov 2020 00:10:24 +0000

got a package in the mail from Shih Wei Chieh

unpacking
dlr_unpacking.mp4

first go
ldr-003.mp4

TODO

find out what's up with the Y axis galvo. it gets very hot when on and doesnt move.

hardware

Shih notes, similar to ldgraphy

the scanner is PT-A40

manual for PT-A40

what's inside?

AlliExp stroe (not he one sent)- https://gzsevenstarlight.aliexpress.com/store/3904033
pro ThorLAB - https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=3770

Basic Tuning
Basic adjustments
The driver board comes already pre adjusted for 3 projection angle and needs to be set up for
the galvo only in small areas. Every galvo is different, so 3 of them adjustments are needed. For
this, the ILDA test pattern is used ,also a setup of the galvos in XY with a laser . If you need to
tune the driver faster to smaller angles, follow the procedure below . Also if the driver is totally
deadjusted , this will be the procedure to retune it :

Size, Servo-Gain, Damping und HF-Damping are adjusted counter clockwise to their left zero position. Now turn LFD 5 full rounds clockwise to right.
Connect computer with ILDA test pattern, run it at approx. 20kpps.
Power on the amplifiers.
Slowly open the servo gain (clockwise). The mirror of the galvo should move now to its middle position. If yes, turn two rounds clockwise.
Slowly open the size until you see the galvo moving.
Increase servo gain until you see overshoots. Correct it with LFD.
Decrease undershoots by opening the HFD pot slightly clockwise. Remove gain/LFD procedure and correct with HFD, until you the picture looks satisfying. Carefully fine tune the driver. The better your fine tuning is, the faster is the scanspeed.
Increase speed of test patterns and readjust for optimized picture

software

greenhouseinfo/max-svg-laser-cutter
and idiot.io lasyer-dye fork

control

needs 3 channels of audio to control X/Y/PULSE
jack got me this to test

“has 1 stereo out and 2 mono”

maybe axoloti if i had it.

diy

http://elm-chan.org/works/vlp/report_e.html

ledb

anonymous@undisclosed.example.com (Anonymous) — Fri, 19 May 2023 10:05:17 +0000

this is a recap of the ledB project

BOM

1 x resistor 10K thruhole
1 x resistor 10M thruhole
1 x diode BA159 or alternative
1 x piezo disk ~3.5Khz (datasheet)
1 x BLUE led (3.5v fwd voltagedatasheet)
1 x LM741 opAmpo (datasheet)
2 x coin cell battery CR2032

Piezo

simulation

source

github

lickometer

anonymous@undisclosed.example.com (Anonymous) — Mon, 10 Jul 2023 09:44:26 +0000

Lick’O’Meter is a basic type of Resistive Touch switch in its simplest form . The operation is simple, A Mosfet transistor is used as a switch. [R1] 10Mohm Resistor voltage divider used for high sensitivity and also keeps the Gate to ground when no electrode is touched, so it does not float. If one of the electrodes is touched, nothing will happen. But if both of the electrodes are touched together, a small amount of current will flow From +V electrode through Our skin (Sweat, Blood, Water or other Conductive Material) to the gate of the transistor. The transistor will then go from cut-off to saturation mode, the D S region of the transistor will form a connection and current will flow through the LED.

There are numerous different ways to implement a resistance touch switch, with transistors, with 555, with 741, with CMOS and many more. The idea is always the same: Two electrodes are used as the touch plates. Current flow from the human skin from one electrode to the other, which finally stimulates an amplifier or other current sensitive component.

Abstract

Licking behavior in rodents is widely used to determine fluid consumption in various behavioral contexts and is a typical example of rhythmic movement controlled by internal pattern-generating mechanisms. The measurement of licking behavior by commercially available instruments is based on either tongue protrusion interrupting a light beam or on an electrical signal generated by the tongue touching a metal spout.

Workshop

Circuit#1 - Paper , Conductive Tapes & Fabrics Lick’O’Meter Circuit

3V Coin Cell Holder from EMI Tape

Circuit#2 - Etching a Lick’O’Meter Circuit - Copper Tape, Conductive Fabrics, Pyralux

Photo Masks:

lickophotomask.pdf

Lithography process with photosensitive dry film & Etching:

Check Flexible Sticky PCB Fabrication Tutorial Link

Preparing DIY Flexible copper tape clad - Step 1

Applying PhotoSensitive Dry Film on Flexible Copper Clad - Step 2 Or follow the steps in this Link

Developing Process with Sodium Carbonate - Step 4

Circuit#3 Lick’O’Duino

Older Lick’O’Meter Versions:

Electrodible Smart Candy

electrodibleweb_v3.0.pdf

2n2222 NPN transistor (TO-92) through-hole package

Stencil Cutter Lick’O’Meter Workshop(2014)

Photo Album

sources

links

anonymous@undisclosed.example.com (Anonymous) — Sun, 01 Sep 2024 07:03:53 +0000

all the links

we messaged on FB since May 06, 2013 2:14pm

https://www.facebook.com/groups/6278588981/?fref=ts

http://www.freeinfosociety.com/site.php?postnum=2310

http://www.digikey.co.il/product-search/he?FV=fff4000c%2Cfff80084%2Cfffc00ed&chp=0

http://createdigitalmusic.com/2014/02/curious-digital-modular-watch-aleph-bees-action/

http://213.8.245.146/

http://www.eetimes.com/author.asp?section_id=36&doc_id=1320712

http://www.wired.com/2014/04/watch-an-incredibly-complex-lego-machine-make-electronic-tunes/?mbid=social_fb

https://www.facebook.com/pages/Liquid-Elektronika/126114174130050

http://es.aliexpress.com/item/Free-Shipping-5A-Adjustable-Power-CC-CV-Step-down-Charge-Module-LED-Driver-Voltmeter-Ammeter/1747100229.html

http://www.digikey.com/product-search/en/integrated-circuits-ics/pmic-motor-bridge-drivers/2556626?k=h-bridge

http://www.toshiba.com/taec/components2/Datasheet_Sync/201006/DST_TB6593FNG-TDE_EN_27195.pdf

http://www.nycresistor.com/2012/07/07/stick-a-straw-in-its-brain-and-suck-how-to-read-a-rom/

https://github.com/phooky/PROM/blob/master/tools/eeprom_read/eeprom_read.pde

http://www.pmarket.co.il/product/%D7%A9%D7%9C%D7%98-%D7%90%D7%95%D7%A0%D7%99%D7%91%D7%A8%D7%A1%D7%9C%D7%99-gpt-rm-788

http://www.aliexpress.com/item/1-4W-30-Kind-Metal-Film-Resistors-Assorted-kit-1-Each-20-Total-600pcs-pack-Free/1745471462.html

http://www.iarc.org/iarc/#Import

http://www.openmusiclabs.com/

https://www.google.co.il/search?q=drawing+automatas&safe=off&sa=X&es_sm=93&tbm=isch&tbo=u&source=univ&ei=7yGIVJuqO4XtUq3kg7gL&ved=0CC8QsAQ&biw=1920&bih=1075

http://paintbots.tumblr.com/

https://www.tumblr.com/apps

https://www.google.co.il/search?q=harmonograms&source=lnms&tbm=isch&sa=X&ei=iyeIVMuVJMyuU4Htg7AM&ved=0CAgQ_AUoAQ&biw=1680&bih=965#tbm=isch&q=harmonograph&spell=1&facrc=_&imgdii=_&imgrc=_fte-10lNVXKcM%253A%3B0Np-yXo2gBNVNM%3Bhttps%253A%252F%252Fs-media-cache-ec0.pinimg.com%252Foriginals%252Fdd%252F65%252F2f%252Fdd652f8833b335ae2b88f3d9c5c177a7.jpg?500&direct}}%3Bhttp%253A%252F%252Fwww.pinterest.com%252Fpin%252F236087205441221937%252F%3B670%3B446

http://leafpdx.bigcartel.com/product/primograf-drawing-machine

https://www.marginallyclever.com/shop/drawing-robots/makelangelo-3-complete-kit

http://www.thingiverse.com/thing:30286

http://www.thingiverse.com/thing:575487

https://www.flickr.com/photos/euphy/sets/72157626497662024/

http://www.polargraph.co.uk/

http://www.thisiscolossal.com/2011/06/kinetic-sculptures-by-mihai-bonciu/

https://www.facebook.com/Channel4/videos/10152398698727330/

http://www.kerrywong.com/2014/12/12/how-to-drive-a-latching-relay/

https://www.facebook.com/photo.php?fbid=600621706705586&set=a.134020103365751&type=3

http://www.youtube.com/watch?v=7SRq_kr_UVQ

http://youtu.be/7SRq_kr_UVQ

https://itur.mof.gov.il/Mobile/LocateForm/Create/Live

https://www.facebook.com/segal.liat

https://www.facebook.com/segal.liat?fref=ts

https://www.facebook.com/instructables/photos/a.211490341912/10153081311411913/?type=3

https://gist.github.com/5shekel/1f52bcb8d1f2bad1ee78

video1426446238_10152689458085079.mp4

https://www.facebook.com/yonatan.geron/videos/10153140668427768/

http://cylonjs.com/documentation/platforms/arduino/

https://learn.adafruit.com/adafruit-color-sensors/programming

https://github.com/adafruit/Adafruit_TCS34725/tree/master/examples/colorview

https://github.com/5shekel/arduino.lib.pack

https://github.com/shenkarSElab/Adafruit_TCS34725

http://www.makery.info/2015/06/02/pas-de-chanel-au-hackerspace-textile/

https://www.facebook.com/FullOfWeapons/videos/899136100143557/?permPage=1

https://www.facebook.com/groups/141382209221659/permalink/1170243816335488/

http://www.aliexpress.com/item/Hot-Full-Acrylic-Quality-High-Precision-Reprap-Prusa-i3-LCD-Acquired-DIY-3d-Printer-Kit-with/2026704108.html

http://m.aliexpress.com/item/2026704108.html

http://www.youtube.com/watch?v=zUyoVHjXF3A

https://youtu.be/zUyoVHjXF3A

http://giphy.com/gifs/play-electronics-3o85xFvpN51u7Sqpc4

https://www.facebook.com/126689284073733/videos/895017137240940/

https://www.facebook.com/inverse/videos/867590113289437/?fref=nf

http://www.synthtopia.com/content/2015/09/10/new-ns1nanosynth-is-a-handheld-modular-synthesizer/

https://vimeo.com/138697237

https://www.facebook.com/photo.php?fbid=10153617786530185&set=gm.1053563954676947&type=3

http://telavivmakers.org/index.php/Sounday

http://www.dfrobot.com/index.php?route=product%2Fproduct&product_id=1121

http://www.dfrobot.com/index.php?route=product%2Fproduct&path=48&product_id=1121&sort=p.date_added&order=DESC#.Vha55flVhBd

http://everycircuit.com/circuit/6716024855461888/braitenberg-vehicle-type-2b

http://everycircuit.com/circuit/6716024855461888

http://www.pjrc.com/store/teensy3_audio.html

http://blog.vinu.co.in/2014/12/happy-christmas-and-happy-new-year.html

http://www.youtube.com/watch?v=YIiJ4ka-Owk

http://www.niklasroy.com/project/170/suck-the-balls

https://www.youtube.com/watch?v=FaoJaLmZaL4

https://www.facebook.com/groups/arduinoisrael/permalink/848051425293305/

http://mlb-s1-p.mlstatic.com/modulo-gprs-gsm-arduino-neoway-m590-454501-MLB20341661672_072015-F.jpg?500&direct}}

https://www.youtube.com/watch?v=Go8Uin_jlps

http://www.aliexpress.com/item/Smallest-SIM800L-GPRS-GSM-Module-MicroSIM-Card-Core-BOard-Quad-band-TTL-Serial-Port/32284805917.html

http://www.lion.co.il/p/250881#.Vj8oS7crLRY

http://www.aliexpress.com/item/Vichy-VC99-3-6-7-Auto-range-digital-multimeter-with-bag-better-FLUKE-17B-free-shipping/502283934.html

http://www.aliexpress.com/item/Brand-New-Universal-Digital-Multimeter-Multi-Meter-Test-Lead-Probe-Wire-Pen-Cable-1-pair/32385470267.html

http://www.aliexpress.com/item/SMD-Inductor-Test-Clip-Probe-Tweezers-for-Resistor-Multimeter-Capacitor-W7Tn/32243198907.html

http://www.aliexpress.com/item/AIMO-ADM02-Auto-Ranging-Digital-Multimeter-DMM-DC-AC-Voltage-Current-Temperature-Meter-Tester-Diode/1650474200.html

http://m.ebay.com/sch/i.html

http://www.ebay.com/itm/2-Fluke-8010A-Digital-Multimeter-Series-/361251271188?hash=item541c40f214%3Ag%3ABB0AAOSwBahVEbAj

http://www.hlt.co.il/products/category/29

http://hwzone.co.il/community/threads/507161-כמה-מילים-על-ה-UT61-E-מוליטמטר-נורמאלי-למי-שאין-לו-תקציב-גבוה

http://hwzone.co.il/community/threads/507161-%D7%9B%D7%9E%D7%94-%D7%9E%D7%99%D7%9C%D7%99%D7%9D-%D7%A2%D7%9C-%D7%94-UT61-E-%D7%9E%D7%95%D7%9C%D7%99%D7%98%D7%9E%D7%98%D7%A8-%D7%A0%D7%95%D7%A8%D7%9E%D7%90%D7%9C%D7%99-%D7%9C%D7%9E%D7%99-%D7%A9%D7%90%D7%99%D7%9F-%D7%9C%D7%95-%D7%AA%D7%A7%D7%A6%D7%99%D7%91-%D7%92%D7%91%D7%95%D7%94

http://www.lion.co.il/p/237889#.Vj8pI7crLRa

http://www.aliexpress.com/store/product/UNI-T-UT-61E-Modern-Digital-Multimeters-UT61E-AC-DC-Meter/209587_548923745.html

http://www.aliexpress.com/item/Banana-Universal-Multimeter-Test-Leads-Probe-Cable-for-IC-Pin-LED-H1E1/1952012791.html

http://en-us.fluke.com/products/all-accessories/fluke-i1010.html

http://www.hlt.co.il/products/index/16851

https://www.youtube.com/watch?v=9azDW7NSCjo

http://www.aliexpress.com/item/UNI-T-UT210E-True-RMS-AC-DC-Current-Mini-Clamp-Meters-w-Capacitance-Tester-Digital-Earth/32271312662.html

http://www.banggood.com/FPV-2-Axis-Brushless-Gimbal-With-Controller-For-DJI-Phantom-GoPro-3-p-908068.html

https://www.youtube.com/watch?v=gE0jAGPrLF0

http://www.banggood.com/Wholesale-FPV-System--c-2734.html

http://m.ebay.co.uk/itm/171994216380?ul_ref=http%3A%2F%2Frover.ebay.com%2Frover%2F0%2Fe11021.m43.l3160%2F7%3Feuid%3D34e6eae09d4d48bfb38bc45eed6936d6%26loc%3Dhttp%253A%252F%252Fcgi.ebay.co.uk%252Fws%252FeBayISAPI.dll%253FViewItem%2526item%253D171994216380%26srcrot%3De11021.m43.l3160%26rvr_id%3D0&_mwBanner=1

https://vimeo.com/16871362

https://zvukolom.org/product/elektrosluch-3-pre-order/

https://learn.sparkfun.com/tutorials/tags/edison

http://www.alibaba.com/product-detail/flexiable-curved-battery-3-7v-43mAh_1927394025.html

https://www.facebook.com/bln.fm/videos/10154335459628572/

https://www.youtube.com/watch?v=5haFnmvCIzE

https://www.facebook.com/RadioCanadaArtsetdivertissement/videos/1117461624944956/?fref=nf

https://www.facebook.com/DoctorMixDotCom/videos/966738316717164/

https://www.facebook.com/video.php?v=966738316717164&fref=nf

https://www.facebook.com/RadioCanadaArtsetdivertissement/videos/1117461624944956/

http://hackaday.com/2015/11/25/conductive-circuit-board-tattoos-tech-tats/

https://youtu.be/FiMtlfHTGRE?t=216

https://www.youtube.com/watch?v=3RBSkq-_St8

https://www.youtube.com/watch?v=NBp3t_gHTkE

http://www.haaretz.co.il/gallery/art/1.2794602

video1449769468_10208352761995715.mp4

https://docs.google.com/document/d/1jx58VasKOyImMDgbvfJvzjbmjoZmn0HQutIgo4Y6QmA/pub

http://hackaday.com/2015/12/20/3d-printed-hydraulics/

https://www.facebook.com/onyxashanti/posts/10156344985800704

http://mitne.ws/1HwBZro

http://4d.rtvslo.si/arhiv/osmi-dan-prispevki/174298630

http://f18institute.net

https://www.facebook.com/events/338159826354408/

https://www.facebook.com/events/338159826354408/?ref=3&ref_newsfeed_story_type=regular&feed_story_type=117&action_history=null

https://events.ccc.de/congress/2015/Fahrplan/events/7389.html

https://streaming.media.ccc.de/32c3/hall6/

https://events.ccc.de/congress/2015/Fahrplan/events/7549.html

https://www.facebook.com/telavivmakers/photos/gm.1658349104433410/783009135144451/?type=3

https://www.youtube.com/watch?v=zvVJZq0AdRg

http://www.neiditch.co.il/?catid=%7B80766A89-5F9F-4769-B570-580DDA64C054%7D

http://www.thingiverse.com/thing:724999

http://www.thingiverse.com/thing:724999/#files

https://docs.digi.com/display/WirelessGamesKit/Treasure+Hunt

https://evothings.com/diy-arduino-beacons/

http://makernews.info/featured/2015/09/BLE-nrf24l01-arduino.html

http://makezine.com/2016/01/14/kekepad-trying-make-wearables-well-wearable/

video1453023640_10153276363890079.mp4

https://github.com/shenkarSElab/cornell_treasureGame/commit/86319d7f276b70ad6979494dbb527ed283224294

https://medium.com/@krissyxkd/haute-tech-trends-in-fashion-770b11f894e7

https://www.facebook.com/GIGadgets.Fans/videos/1000886766657279/

http://video.tagesspiegel.de/led-kleid-leuchtet-im-dunkeln.html

http://www.ebay.com/itm/100g-Photoresist-Anti-etching-Blue-Paint-for-DIY-PCB-Photo-Etched-PE-NEW-/301857576850

http://www.ebay.com/itm/100g-Photoresist-Anti-etching-Blue-Paint-for-DIY-PCB-Photo-Etched-PE-NEW-/301857576850?hash=item46481d1792%3Ag%3ALt4AAOSwX%7EdWkyy%7E

http://www.aliexpress.com/item/Free-shipping-electric-pad-printer-validity-Expiry-date-pic-printer-on-plstic-paper-plastic-film-date/608780794.html

http://www.aliexpress.com/item/Free-Shipping-10PCS-Positive-photosensitive-glass-sided-FR-4-CCL-plate-10-15-PCB-100-150/32473491379.html

http://www.aliexpress.com/item/New-Arrival-PCB-Photosensitive-Dry-Film-for-Circuit-Production-Photoresist-Sheets-30cm-x-5m/32483270596.html

http://www.aliexpress.com/item/Professional-accessories-30cm-Photosensitive-Dry-Film-Replace-Thermal-Transfer-PCB-Board-Longth-1M-Brand-New/32528694947.html

http://s.aliexpress.com/amI3AJv2

https://m.facebook.com/groups/1440009879569225?view=permalink&id=1723693614534182

http://www.aliexpress.com/item/Free-shipping-12V-Car-Steam-Humidifier-Air-Purifier-Aroma-Diffuser-Essential-oil-diffuser-Aromatherapy-Mist-Maker/32594250810.html

http://makezine.com/2012/04/24/my-tv-stinks/

http://www.roc21.com/2016/03/16/plotter-imprime-plumones-sobre-cualquier-superficie/

https://m.facebook.com/groups/120342254665793?view=permalink&id=1146840662015942

http://hackaday.com/2016/02/17/its-alive-badge-for-hackaday-belgrade/

http://www.bunniestudios.com/blog/?p=4484

http://www.hitlabnz.org/administrator/components/com_jresearch/files/publications/2006-THESIS-MarkWhite.pdf

https://www.youtube.com/watch?v=7M-C2u6IeI4

https://www.youtube.com/watch?v=sUZebHmsv9c

https://photos.google.com/share/AF1QipNxmE82U0t2xS6Hc3eHmcLP0D7Mpu3MYGi94VLFwzxnONZo2h-8zRCgTH74FvnggA?key=Rno3YThwb3JnVjNISTQtbW9wTWVSWm5xMmV6R2Jn

https://goo.gl/photos/cMevxMsfDtLoRXCu6

https://photos.google.com/share/AF1QipOgDJcHbowKp9b_oxM6p4NrlFdzxxg3LSmqa8h-9D-XgJdrYW7fOqxZ46BdyzsJzQ?key=bFFKNkYxbmhUS25LeDM4QlM5bzFSWDJBbFlRMVpB

https://goo.gl/photos/KG8mBieuJJQQSDsW6

http://hackaday.com/2016/03/31/3d-printed-case-turns-servo-into-quality-linear-actuator/

http://www.aliexpress.com/item/HiSKY-HFP100-WLtoys-V944-RC-Helicopter-Parts-LS90-Linear-Servo/32351811065.html

http://www.aliexpress.com/item/Free-shipping-1pair-High-quality-1-5g-servo-Analog-FUTABA-Mini-micro-servo-for-Ultra-Micro/955837392.html

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https://i.imgur.com/hgS8wsb.png}}

https://i.imgur.com/oWoYnnl.png}}

https://www.digitalocean.com/community/questions/what-is-this-sustes-in-my-process-in-my-cpu-stats

https://www.youtube.com/watch?v=5L0FZDJIvJ8

https://www.facebook.com/Chefclubkids/videos/2178151899064504/

https://ewic.bcs.org/upload/pdf/ewic_evac18_paper8.pdf

https://patents.google.com/patent/US9316481B2/ko

http://www.idea2ic.com/LM383/index.html

video1541497949_1153300141461777.mp4

https://docs.derivative.ca/Main_Page

http://www.shenkar.ac.il/he/news_items/malag-innovation-new-campus

https://youtu.be/_GVk_hEMjzs

https://vimeo.com/180163754

https://videowhisper.com/

https://www.youtube.com/watch?v=5cFhx_myB0Q

https://www.mountsinai.org/health-library/poison/acid-soldering-flux-poisoning

https://www.sentryair.com/solder-fumes.htm

https://www.lifewire.com/types-of-solder-flux-818849

http://overdriveconference.com/call-for-papers/

http://www.massmind.org/techref/pcb/manhattan.htm

https://www.nxp.com/docs/en/data-sheet/PCA9901.pdf

https://www.edn.com/design/pc-board/4438769/Product-how-to--Build-your-own-designs-on-flexible-circuit-boards

https://docs.google.com/document/d/1R3Wf7j9XbPVb6TcdXOlKNNzTdyDk8l7GkYrUagZ-Z3Q/edit?usp=embed_facebook

https://docs.google.com/document/d/1R3Wf7j9XbPVb6TcdXOlKNNzTdyDk8l7GkYrUagZ-Z3Q/edit?usp=sharing

https://www.youtube.com/playlist?list=PLffEIgKUQ7kE0UAN2cfZ5PiKWi7FfOobh&disable_polymer=true

https://www.youtube.com/playlist?list=PLffEIgKUQ7kE0UAN2cfZ5PiKWi7FfOobh

https://www.youtube.com/watch?v=olnLaOA27L0&list=PLffEIgKUQ7kE0UAN2cfZ5PiKWi7FfOobh

https://he.wordpress.org/plugins/youtube-playlist-player/

https://es.aliexpress.com/item/1m-USB-Data-Charging-Adapter-Cable-3-5mm-AUX-Audio-Plug-Jack-to-USB-2-0/32743459664.html

https://dirtypcbs.com/store/cables

https://www.precisionmicrodrives.com/content/ab-008-vibration-motor-best-practices-from-mobile-cell-phones/

howto

download your data from facebook
run the html you got locally using 'python http.server'
run

# grab all links we talked about
from bs4 import BeautifulSoup
import requests
import re
 
#use 'python http.server' on the directory to serve the folder. sb4 doesnt do local links
inbox_path='http://localhost:8000/messages/inbox/ElBootkeh_64b09d1ba5/message.html'
print(inbox_path)
url = requests.get(inbox_path)
soup = BeautifulSoup(url.text, 'html.parser')
 
with open('idiot_links.txt', 'w') as f:
    for link in soup.find_all(href=True):
        try:
            #grab href see> https://stackoverflow.com/q/5815747/184085
            link=link['href']
            print(link)
            # afterwards pass .html\?.*$ into .html (in vscode to fomrat long aliexpress links...)
            link=re.sub(r'.html\?.*$',r'.html',link)
            #TBD remove stickers messages with '^messages/stickers_used.*png'
            #TBD shorten deep dirs
            #TBD remove dups 'awk '!seen[$0]++' idiot_links.txt > idiot_linksU.txt'
            #TBD reverse order
            #TBD add {{currly bractes}} to media
            #TBD extract date of event
            #TBD auto uplaod relevant files to wiki
            f.write(link.lstrip() + '\n\n')
        except:
            TypeError

* bonus, if you have long ass aliexpress links that you want to “cut” after the .html? just regexp them like so > image

links_render

anonymous@undisclosed.example.com (Anonymous) — Fri, 04 Oct 2019 22:41:38 +0000

idiot.io_communications_2012_2019.mp4

lithopia

anonymous@undisclosed.example.com (Anonymous) — Mon, 29 Mar 2021 22:35:12 +0000

Lithopia

sat imagery

planet

5,3,0.7m

images from planetscope

link to full resolution scan (cropped) for 18th in november

that is an excerpt from planets free samples on registration.

200sq/km scans
3sq/m resolution ("4.77m at the equator")
a daily scan cycle
with 7 day delay

site

access via a command line and a nice web based tool.

media

notice the tent(?)

google view

SAR imagery

lithium detection with satellites

Sentinel-1

The Sentinel-1 mission comprises a constellation of two polar-orbiting satellites, operating day and night performing C-band synthetic aperture radar imaging, enabling them to acquire imagery regardless of the weather. sentinel-1

Mode\Resolution\Pixel spacing > SM\9×9 m\3.5×3.5 m (acquisition-modes)

sentinel toolboxes , and google API

COSMO+SAOCOM

The main difference between the two sensors is the wavelength: 3 cm for COSMO-SkyMed X-band and 23 cm for SAOCOM L-Band. This translates in the fact that while X-band can detect even slight details, L-band is suitable to observe larger objects which would result unclear with X-band. Combining the two is possible to monitor both geometrical objects and small details. e-gos.it

TerraSAR-X

https://sss.terrasar-x.dlr.de/

what is it?

NASA ARSET: Basics of Synthetic Aperture Radar (SAR), Session 1/4

DEEP LEARNING IN SAR-OPTICAL DATA FUSION arxiv

20181130-014139.png_400

esa_sar_tutorial.pdf - great intro

https://en.wikipedia.org/wiki/Synthetic-aperture_radar

python library pyradar written by a spanish, we need to meet him

datasets

“The Alaska Satellite Facility provides production, archiving and distribution to the scientific community of SAR data products and tools from active and past missions, including the June 2013 release of newly processed, 35-year-old Seasat SAR imagery.”

see a helpful SA answer EOLi (Earth Observation Link ) is the European Space Agency's client for Earth Observation Catalogue Service. also > alska datasets > d/l with script pdf

https://daac.ornl.gov/daacdata/eos_land_val/sar_subsets/data/

https://dx.doi.org/10.3334/ORNLDAAC/993

https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=993

sat dance

REST comm

exposed contract values are presented in the explorer along with their Curl example,
note that no authentication is used

http://anonette.net:3000/explorer/

use HTTPie to interact with the REST server, a modern replacment for Curl.
on ubuntu type

sudo apt install httpie

to post from command line use, note we cant set a flagColor without naming a place

http POST http://anonette.net:3000/api/Flagcolor flagColor="pink" place="spodumeneHouse"

other possibilities

http POST http://anonette.net:3000/api/Lithopian name="anoterNewName"

to GET values use

http GET http://anonette.net:3000/api/Flagcolor

on server side the comm is handled by composer-rest-server

live

anonymous@undisclosed.example.com (Anonymous) — Fri, 31 May 2019 13:51:27 +0000

**play in VLC

http://idiot.io:5080/LiveApp/streams/238635674166608439867344.m3u8

previous streams from FB #1, #2, #3, #4

currently using ant media server and obs

watch streams

method

livest

anonymous@undisclosed.example.com (Anonymous) — Sat, 05 Sep 2020 10:49:25 +0000

live

<html> <a href=“https://www.haivision.com/products/srthub/?utm_medium=CTA&utm_term=SRTHub&utm_content=Sep%2B4&utm_campaign=Blog&wvideo=g6wyi820rt”><img src=“https://embed-fastly.wistia.com/deliveries/2503e91f43c10e1b427c51faf01e0f80.jpg?image_play_button_size=2x&image_crop_resized=960x540&image_play_button=1&image_play_button_color=0072cee0” width=“400” height=“225” style=“width: 400px; height: 225px;”></a><a href=“https://www.haivision.com/products/srthub/?utm_medium=CTA&utm_term=SRTHub&utm_content=Sep%2B4&utm_campaign=Blog&wvideo=g6wyi820rt”>SRT Hub Cloud Based Media Routing | Haivision</a> </html>

List_of_streaming_media_systems

HLS

gstreamer/video.js

the easiest stream i got was using hlssink

  gst-launch-1.0 videotestsrc is-live=true ! x264enc ! mpegtsmux \
  ! hlssink playlist-root=https://your-site.org \
  location=/srv/hls/hlssink.%05d.ts \
  playlist-location=/srv/hls/playlist.m3u8

and video.js on the other site

<video-js id=vid1 width=600 height=300 class="vjs-default-skin" controls>
  <source
     src="https://example.com/index.m3u8"
     type="application/x-mpegURL">
</video-js>
<script src="video.js"></script>
<script src="videojs-http-streaming.min.js"></script>
<script>
var player = videojs('vid1');
player.play();
</script>

pipe video from rtsp ueye

gst-launch-1.0.exe rtspsrc location=rtsp://169.254.37.87:8554/mystream ! fakesink ! fpsdisplaysink

Javelin

gitlab javelin

install rust on server

curl https://sh.rustup.rs -sSf | sh
source $HOME/.cargo/env

you'll probably need a few deps, like

sudo apt install libssl-dev

cargo install javelin
# add an user with an associated stream key to the database
javelin --permit-stream-key="idiotstream:cc144117a8fe59af0f7f34ce9eca8f05" --rtmp-bind 46.101.213.56 --http-bind 46.101.213.56 
# start the server if not running
javelin run

couldn't get server/client to access 8080 to see the stream . trying the docker-compose way

streamline

https://github.com/streamlinevideo/streamline

opencv>ffmpeg>hls

video-streaming-hls-apache-nginx
opencv_ffmpeg_streaming

optimizing

Shaka

https://github.com/google/shaka-streamer
https://github.com/google/shaka-packager
https://google.github.io/shaka-packager/html/index.html

jsmpeg

https://github.com/phoboslab/jsmpeg
https://github.com/mbrumlow/webbot

JSsip

https://tryit.jssip.net/

SRT

https://www.haivision.com/blog/all/rtmp-vs-srt/ – > haivision_white_paper_rtmp_vs_srt_comparing_latency_and_maximum_bandwidth.pdf

gst and srt

https://github.com/Haivision/srt/blob/master/docs/why-srt-was-created.md

UDP based transport. not used to broadcast to many. low latency and packet recovery between two points.

server

start the srt + server

https://github.com/Haivision/srt
cd srt && ./configure && make
./srt-live-transmit udp://:1234 srt://:4201 -v

start a producer using ffmpeg lavfi fakesource

ffmpeg -f lavfi -re -i testsrc=duration=300:size=1280x720:rate=30 \
 -pix_fmt yuv420p -c:v libx264 -b:v 1000k -g 30 -keyint_min 120 -profile:v baseline -preset veryfast \
 --f mpegts "udp://127.0.0.1:1234?pkt_size=1316"

watch on vlc

srt://127.0.0.1:4201

http://en.kiloview.com/product/E2-H.264-HDMI-to-IP-Wired-Video-Encoder-59.html

servrs providers

AZURE

does support SRT, unlike aws. with thier end of life RTMP coming iin 2021

https://azure.microsoft.com/en-us/blog/what-s-new-in-azure-media-services-video-processing/

AWS

Kinesis

Q: What’s the difference between Kinesis Video Streams and AWS Elemental MediaLive?
AWS Elemental MediaLive is a broadcast-grade live video encoding service. It lets you create high-quality video streams for delivery
to broadcast televisions and internet-connected multiscreen devices, like connected TVs, tablets, smart phones, and set-top boxes.
The service functions independently or as part of AWS Media Services.

Amazon Kinesis Video Streams makes it easy to securely stream video from connected devices to AWS for real-time and batch-driven machine learning (ML),
video playback, analytics, and other processing. It enables customers to build machine-vision based applications that power smart homes,
smart cities, industrial automation, security monitoring, and more.

hls-playback
kinesis how-it-works
examples-gstreamer-plugin

elemental

https://aws.amazon.com/elemental-conductor/

medialive

https://docs.aws.amazon.com/medialive/latest/apireference

pricing is based on input/ouput encoding setiings > https://aws.amazon.com/medialive/pricing/

ANTMEDIA

wiki

pull RTSP streams from IP Cameras easily and it can be configured on the management panel. wiki
pull live streams from external sources wiki

HLS Publishing » HLS Playing

OBS RTMP to AntM

digitalOcean droplet

pricing > https://antmedia.io/#selfhosted png

Hardware

teradek

Teradek Vidiu Pro

Teradek RTMP to antmedia

axis

analog/16ch/h264 > p7216

analog/4ch/300$ m7104

china

ALIexpress

questions

where are most clients?

OBS

https://obsproject.com/forum/resources/how-to-do-hls-streaming-in-obs-open-broadcast-studio.945/

NEws

scenario

test

load-sensing

anonymous@undisclosed.example.com (Anonymous) — Sat, 27 Apr 2019 07:58:31 +0000

Serial plotter (!)

load cells

sparkfun guide

IoT Industrial Scale

flexiforce

max

anonymous@undisclosed.example.com (Anonymous) — Sun, 16 Aug 2020 20:31:07 +0000

This page has been moved, the new location is max.

mc

anonymous@undisclosed.example.com (Anonymous) — Wed, 12 Apr 2023 20:29:35 +0000

MineCraft

i will make a bedrock server for playing with cip

currently running the stock MC server (bedrock)

MODS

Stray mod

<3<3

mc_stray_mod.zip

—

Servers

PocketMine-MP seems like a nice choice for plugins

lingo

[bedrock|java] server editions- i need bedrock as it does tablets

mfhs

anonymous@undisclosed.example.com (Anonymous) — Sat, 10 Apr 2021 19:16:07 +0000

SGMK2020

microphones

anonymous@undisclosed.example.com (Anonymous) — Wed, 12 Apr 2023 19:54:47 +0000

listening to plantes

The_Secret_Life_of_Plants (1973) wikipedia
The_Secret_Life_of_Plants_FULL-sGl4btrsiHk.webm-streamReady.ogv

The sound machine 1947 https://archive.is/SI8iv

current

recently sound of planets is having a comeback!

"Sounds emitted by plants under stress are airborne and informative", more media here

mmc2.mp3

an audio sample of the actual tomato recordings, after downsampling to the audible range and condensation in time

in media

articles related to Khait paper

clip from guardian
scientists_detect_ultrasonic_popping_sounds_from_plants_when_they_are_deprived_of_water_audio_hmcg41ykfqo_.webm

recording ultrasonic

spu0410lr5

using the MEMEs microphone, range of 100 Hz to 80 kHz

from manufacture

in the field

from mydlarz et el [1][2]

[1] see also other work from charlie-mydlarz, and his website and marl
[2] https://www.justinsalamon.com/publications.html
[3] good info at https://www.zachpoff.com/resources/cheap-microphones-for-ultrasound/

using polaroid hack for bat listening

output > 20khz-to-120khz-acoustic-transducer/speaker

sonyc

https://wp.nyu.edu/sonyc/

electrical Georges_Lakhovsky #HatersGonaHate

mini_flow

anonymous@undisclosed.example.com (Anonymous) — Mon, 31 Dec 2018 10:45:54 +0000

what

ceramic heaters just arrived. PTC is an amazing material

we are intrested in small reflow ovens for workshops, to remove the need for soldering smd with cheap irons.

mybe call it uBake ?

test setup

first tested on bench with no heat load.
it takes 12DCV 5A ramping up
when it reaches 410C (rated at 400c) it stabilize on 3A this allows for relatively precise ramping using current control. using a benchtop psu or lm317(?) you can make a very simple reflow profile.

basic.mp4

placed the ceramic heater on top of a huge copper heatsink (idiot)

then moved to a more suitable setup

i used microprint 2004p (Sn62 Pb36 Ag2, 20-38 µm (T4)) (pdf,pdf2)
with a claimed melting point of 179°C

bake-720p.mp4

rec013_shrt.mp4

omg

to test

12V-400C-30mm-Diameter-Round-MCH-Metal-Ceramic-Heater-Plate
- aliexpress

Aluminum LED Remover Split Plate PTC Heating Soldering Chip Remove Demolition Welding For BGA Solder Ball Station
- aliexpress

PID

https://electronics.stackexchange.com/questions/215418/smartest-way-to-use-current-limit-using-lm317 and polyfuse?

molds

anonymous@undisclosed.example.com (Anonymous) — Sun, 15 Sep 2019 20:53:12 +0000

Intro

molds for sugar need to be

safe for consumption (even if not directly wallowed)
hold at temperature of +160c
- sugar base goes up to 146C but better safe

when making multiple impressions in a single mold, silicon+cornstarch method falls short.

see more at http://idiot.io

Results

make mold

moldmke

tapmold

pour…

pour_platinum.mp4

pour.mp4

wait 8 hours…

extract

RTVs

watchout for

Viscosity - higher numbers mean running slower
shelf life - always look at datasheet
- 20 month sometimes less. the smoothOn was opened and was all stiff
- the platinum base was much more viscous a day after opening. not a good sign.
- stiffon.mp4

volume

we tried water, kuskus and polymorph pellets.

but best is to calc

calculate 3d volume from simplify3D = 22.5 per bit

(22.5*4)/253 = 163

conformal coating

Vacuum forming

milk made

https://www.instructables.com/id/Bioplastics-Casein-Plastic-and-Starch-Based-Plasti/

src Wormolution_

multicam

anonymous@undisclosed.example.com (Anonymous) — Wed, 28 Nov 2018 01:18:06 +0000

see also ESP32-CAM <html> <h1>multi cam solutions</h1>

different approaches for recording and streaming a benchtop work surface

## Raspi the raspi can accept USB webcams but the usb2 limiting the bandwidth for multi cam solutions. the raspi also always for direct connect of camera, with limitation of length . elad fwd me to the arducam family of megapixel modules. and arducam *multi cam switcher* <a href=“http://www.arducam.com/multi-camera-adapter-module-raspberry-pi/”>docs</a> - <a href=“http://www.uctronics.com/catalogsearch/result/?q=multi”>official store</a> - <a href=“https://botland.com.pl/598-kamery-do-raspberry-pi?producenci*=arducam”>euro supplier</a>

another switcher is offered by ivmach, <a href=“http://www.ivmech.com/magaza/en/development-modules-c-4/ivport-dual-v2-raspberry-pi-camera-module-v2-multiplexer-p-109”>link</a> there are <a href=“https://www.raspberrypi.org/forums/viewtopic.php?t=154540”>claims</a> the arudcam one is not compatible with the raspi cam v2.

## ESP8266 arducam also offers a nice esp8266 based platform for their many modules 20$ to israel from <a href=“https://www.amazon.com/dp/B01ESRYA2Y/ref=cm_sw_r_cp_ep_dp_3EIMAbX83ES58”>amazon.com</a>

https://www.youtube.com/watch?v=n1dDGNpbxGM&&&feature=youtu.be

<a href=“https://youtu.be/n1dDGNpbxGM”>https://youtu.be/n1dDGNpbxGM</a>

2m raspiam extender - https://www.amazon.com/Adafruit-Flex-Cable-Raspberry-Camera/dp/B00XW2NCKS arducam 5mpx cam with CS lens - https://www.amazon.com/Arducam-Megapixels-OV5647-Camera-Raspberry/dp/B012ETE75I

## Streaming <a href=“https://janus.conf.meetecho.com/”>Janus</a> - is a webRTC gateway for broadcasting one to many scenario - <a href=“https://github.com/meetecho/janus-gateway”>github</a> Streamer also support webRTC - <a href=“https://gstreamer.freedesktop.org/news/”>site</a>

## raspi i started with a raspi3 + cam module v1

<pre>

#Enable UART
enable_uart=1
force_turbo=1

</pre>

nice raspi zero based “camera”

https://www.youtube.com/watch?v=rTlItbnWJZk&&

<a href=“https://youtu.be/rTlItbnWJZk”>https://youtu.be/rTlItbnWJZk</a>

<a href=“https://github.com/techyian/SwitchCam”>https://youtu.be/rTlItbnWJZk</a> https://github.com/techyian/SwitchCam

info on raspi cm modules https://github.com/techyian/MMALSharp/wiki/OmniVision-OV5647-Camera-Module https://github.com/techyian/MMALSharp/wiki/Sony-IMX219-Camera-Module

MMAL http://www.jvcref.com/files/PI/documentation/html/index.html

https://www.youtube.com/watch?v=I1E8MrA5lhw&&

<a href=“https://youtu.be/I1E8MrA5lhw”>https://youtu.be/I1E8MrA5lhw</a>

“This repo's objective is providing something like Web Cam server on the most popular Raspberry PI hardware. By integrating <a href=“[https://webrtc.org/native-code/](https://webrtc.org/native-code/”>WebRTC</a>) and Raspberry PI, we can stream the Raspberry camera feed to browser or native client which talks WebRTC.” https://github.com/kclyu/rpi-webrtc-streamer you can used the deb repo for compiled ready to run version ` Stream the #RaspberryPi camera module through your browser http://www.recantha.co.uk/blog/?p=4165 serious comments https://raspberrypi.stackexchange.com/questions/7446/how-can-i-stream-h-264-video-from-the-raspberry-pi-camera-module-via-a-web-serve

## uv4l https://www.linux-projects.org/uv4l/installation/

</html>

nailed

anonymous@undisclosed.example.com (Anonymous) — Sun, 30 Apr 2023 10:38:01 +0000

nailed is a one pixel camera on your nail.
it carries an IC with 16Kb of flash memory to save input from a color sensor and play it back on the RGB LED

prior at https://yair.cc/nld/

MCU

ATtiny1634

Summary Datasheet, datasheet

ATTinyCore notes

LED

SK6812

some info on the data pins and protocol of ws2812

he main difference between the two drivers is that the SK6812 has voltage-independent color and brightness over a wide voltage range, which means that the colors of the LEDs should not be affected by a drop in the supply voltage as much as they are on the WS2812B.source

SK6812	SK6812SIDE	SK6812MINI



datasheet	datasheet

Color

TCS3414

pdf, guide arduino

pintout >

VEML6040

datasheet

MEMORY

24LC32AFT

32-Kbit I2C Serial EEPROM, pdf

24LC16BT

power

as space on the nail is at premium we will currently use thin wires to power each nail.

Nail Decals

Ladies (mm):
- Big Toe: 10.16 x 11.5
- Fingers: 8 x 9

ummm....this_translucent_glitter_vinyl_from_expressions_vinyl_might_be_my_new...-820803621359182.mp4

Schema

nodejs

anonymous@undisclosed.example.com (Anonymous) — Sat, 01 Dec 2018 07:58:45 +0000

starting a fresh learing cycle of nodejs

using https://javascript.info online

aim is to get puppeteer working correctly on a long list of links

pcbfab

anonymous@undisclosed.example.com (Anonymous) — Sun, 25 Nov 2018 22:37:57 +0000

<html> <h1>PCB manufacturing</h1>

East Vs West (?) preliminary note: this are MY assumptions, and not backed by any direct communication with any of the involved. a few years ago there was a big split between in the arduino team . arduino as a company started when fellows from a design school in italy took <a href=“https://arduinohistory.github.io/”>wiring</a> (a student theses) and hooked up with a board manufacturer . that allowed them to scale and produce the arduino board. fast forward a few years, and arduino wanted to start producing 4 layer boards, alas, the original partner didn't have the capabilities. see this <a href=“https://www.designboom.com/technology/arduino-factory-tour/”>designboom article</a> for a 2013 visit to their manufacturing partner

https://player.vimeo.com/video/73860282

<a href=“https://vimeo.com/73860282”>https://vimeo.com/73860282</a>

another trip to a pcb manufacturing facility, this time in USA. by Mrs Blanche.

https://www.youtube.com/watch?v=QBtK-PesGsU&&

<a href=“https://youtu.be/QBtK-PesGsU”>https://youtu.be/QBtK-PesGsU</a>

and now, a visit to a modern PCB facility in china

https://www.youtube.com/watch?v=ljOoGyCso8s&&

<a href=“https://youtu.be/ljOoGyCso8s”>https://youtu.be/ljOoGyCso8s</a>

more <a href=“https://books.google.cz/books?id=qAYvDwAAQBAJ&pg=PA45&lpg=PA45&dq=system+elettronica+factory&source=bl&ots=DFMxhlNjw7&sig=PJb0ChQDWH-8T4T9H3bsTvqxt2I&hl=en&sa=X&ved=0ahUKEwjL0pr_99TbAhXjK5oKHQNpDq0Q6AEISTAH#v=onepage&q=system%20elettronica%20factory&f=false”>notes</a> by Bunnie , from his book “*The Hardware Hacker: Adventures in Making and Breaking Hardware”*

</html>

pcbgreycode

anonymous@undisclosed.example.com (Anonymous) — Sat, 01 Jun 2019 08:56:12 +0000

a turntable embedded on a PCB, a silkscreen on a round PCB to encode the position using gray_code

video-1547726867.mp4

20190208_151040.mp4 using www.zofzpcb.com on archLinux/wine

github repository

tools used

inkscape
extensions

kicad

python script example to create plot files to build a board

Layout

digital

analog

a few guides and approaches

Gray code

wikipedia

“to get a gray number only change one bit”

http://datagenetics.com/blog/november32014/

components

QRE1113 - datasheet, aliExp

other methods

the following are for reference

LED as light Sensor

no word regarding detection speed

magnetic

Magnetic_vs_optical

DC motor

simply connecting a dc motor to the spinning disk
by rotating the disk you convert the energy to analog input for MCU or whatever
problem with this approach it will not give enough output at slow speeds. so probably scratch that.

Stepper motor

same as with the DC motor, you connect the motor to the disks center, then hook the stepper winding A1/2,B1/2 to an MCU, you get a nice stepping encoder.

following links are actually to use the sinusoidal wave of the stepper, a bit of a different approach
also a problem at low speeds.

pd

anonymous@undisclosed.example.com (Anonymous) — Wed, 01 Jan 2020 23:10:09 +0000

arduino_for_pd_ers.pdf

trying my hands on pure-data after years of not doing any visual programming type of work.
last i've seen of it urs of gaudiLabs (et al.) were using it as a serial controller for the openSeq project

as arduino Serial and OSC are two of my main outputs for the pcbgreycode project, im looking into it as a data viz and parse platform, for now.

install PD

i tried a few flavors of PD [pure-data], and settled on purr-data.
it installs nicely on my archLinux machine and comes built in withe the extensions i need.

problem is, a lot of the info is old, many broken links.

goal: serial>parse char input to integers>make list>find unique

# good to clean sys of bad installs
# sudo apt --fix-broken install
sudo add-apt-repository ppa:dr-graef/pd-l2ork.bionic
sudo add-apt-repository ppa:dr-graef/pure-lang.bionic
sudo apt install purr-data

learn PD

when i started visual programming (using max/msp/jitter) back in the days one of the best docs i had was the thesaurus supplied with the documentation. one for PD exists and i hope its not too outdated

arduino playground PD page
https://playground.arduino.cc/uploads/Interfacing/arduinopd.png
Getting Arduino data into pd - forum question
Arduino_Pd-vanilla abstraction to handle Serial print/write comm
arduino_for_pd_ers.pdf - nice detailed guide about serial arduino and pd. comes with code . this is the original

XYspeak

will move to its page doon

picolito

anonymous@undisclosed.example.com (Anonymous) — Sun, 25 Feb 2024 12:03:58 +0000

projector

https://github.com/beagleboard/beaglebone-black/wiki
https://beagleboard.org/latest-images
https://www.ti.com/tool/DLPDLCR2000EVM
ti_dlp_lightcrafter_display_2000_evm_user_s_guide_dlpu049c.pdf
ti_dlp_system_design_brightness_requirements.pdf
programmers_guide_dlpu013a.pdf
https://polyfractal.com/post/lcos-light-engine/- nice teardown
AAXA HD Pico Mini LED Projector (AMZ)

cd /opt/scripts/device/bone/capes/DLPDLCR2000/
cat README.txt
tar -xvf dlp_lightcrafter-1.0.19.tar.gz
cd dlp_lightcrafter-1.0.19
sudo python setup.py install

run mplayer

sudo apt install mplayer
export DISPLAY=:0
wget https://idiot.io/wp-content/uploads/Electrodible/electrodibels-rotate.mp4
mplayer electrodibels-rotate.mp4

retrofitting a pico-projector to a UV lithography station for etching

pov-tami

anonymous@undisclosed.example.com (Anonymous) — Fri, 26 Apr 2019 15:35:08 +0000

למישו יש גליל (לפחות 500) לתאמי?
אנחנו רוצים להכין משהו ליום העצמאות
אפשר בכסף או לחכות שתגיע ההזמנה שלי

datasheets

why WS2812 (old version) suck > https://forum.pjrc.com/threads/31980-Why-my-pov-is-so-ugly?p=90558&viewfull=1#post90558
Chipset-reference
ws2813-vs-ws2812

the horror

SK6812

fastLED support

power

powering-neopixels

prior art

http://www.dnclabs.com/?p=949 pic

8x8 WS2812 LED matrix driven by an Arduino Uno or ATtiny45 using AVR assembler code

aliexpress SK seller

print

anonymous@undisclosed.example.com (Anonymous) — Tue, 28 Sep 2021 22:35:45 +0000

to print at tami download the print driver and follow the instructions.

using the HL-12010W

1. connect to TAMI network (not tami-5ghz) 2. d/l and install the printer driver

for windows hl-1210w-inst-a1-eu.zip
for osx use airprint(?)
for linux use the deb installer form the brother site

radiona2022

anonymous@undisclosed.example.com (Anonymous) — Mon, 04 Jul 2022 10:46:02 +0000

This page has been moved, the new location is electricwonderland2022.

raw

anonymous@undisclosed.example.com (Anonymous) — Sun, 30 Jun 2024 14:30:29 +0000

GRAY8 vs RTP

problem:
single plane raw formats are not part of rfc4175, and as such 2nd class citizens to gstreamer, RTSP or anywhere else.

solution:
an image format is just a convention, internally they are byte(octet) streams. we can re-package a datastream to another format, as long as we mind our strides.

view the image format as just a stream of octets. here is our stream in Y8 format

     +--+--+--+--+ +--+--+--+--+
     |Y1|xx|xx|xx| |Y1|xx|xx|xx| ...
     +--+--+--+--+ +--+--+--+--+

and again, data quartered and represented in 8 bit depth and with stride of 4

     +--+--+--+--+ +--+--+--+--+
     |R0|G0|B0|A0| |R1|G1|B1|A1| ...
     +--+--+--+--+ +--+--+--+--+

note the above represents two sequential pixels.

the trick is to use gstreamer built in format spec and let that handle the conventions.

the hammer

as easy as

gst-launch-1.0 -q \
  videotestsrc pattern=white num-buffers=1 \
! video/x-raw, format=GRAY8, width=4, height=4 \
! identity dump=1 \
! rawvideoparse format=rgba width=1 height=4 \
! identity dump=1 \
! fakesink
00000000 (0x7f369c00a8c0): eb eb eb eb eb eb eb eb eb eb eb eb eb eb eb eb  ................
00000000 (0x556228700560): eb eb eb eb eb eb eb eb eb eb eb eb eb eb eb eb  ................

note: why white pixel is not FF=(255)?
gstreamer uses YUV colorimetry when generating a GRAY8 test image
and YUV doesnt use the entire 0-255 space. issue

note2: this example is running on linux/debian,
to adapt to windows using powershell replace \ with ` and
place quotes around video/x-raw, format=GRAY8, width=4, height=4

FakeRawPay

gray8 raw video transported as RTP payload via a “fake” rgba parsing step
conforming to RFC4157
pay

gst-launch-1.0 -v \
  videotestsrc pattern=white is-live=1 \
  ! video/x-raw, format=GRAY8, width=4, height=4, framerate=30/1 \
  ! rawvideoparse width=1 height=4 format=rgba \
  ! rtpvrawpay \
  ! queue \
  ! udpsink host=localhost port=5000

depay and back to gray8

gst-launch-1.0 -v \
  udpsrc port=5000 \
  ! "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)RAW, sampling=(string)RGBA, depth=(string)8, width=(string)1, height=(string)4, colorimetry=(string)SMPTE240M, payload=(int)96" \
   ! rtpvrawdepay \
   ! queue \
   ! rawvideoparse width=4 height=4 format=gray8 \
   ! videoconvert \
   ! fpsdisplaysink

strides and offsets

there are caveats to this approach (yuv). get the hammer and study the design document.

pstride only exist for simple pixel formats. It represent the distance in bytes between two pixels. This value, when it exists, is constant for a specific format.

rtstride (row stride), is the size, in bytes, of one [image] line. In general, it must be larger or equal to pstride * width, when pstride exist for your format. This design document outline the calculation of the default strides and offsets [channels\planes] within the libgstvideo library. Notice the use of RU4 or RU2, which are round up, these are used to ensure the each row starts on an align pointer. This simplify memory access in software processing.

When you use VAAPI, you are using some HW accelerators. These accelerators have wider memory alignment requirement, hence the end results is that strides will be larger, and sometimes there will also be couple of padding rows. question

GRAY8
8-bit grayscale “Y800” same as “GRAY8”

Component	color	depth	pstride	offset	rstride	size
0	Y	8	1	0	width	rstride*height

+--+--+--+--+ +--+--+--+--+
|Y0|x |x |x | |Y1|x |x |x | ... (two pixel representation, in octet))
+--+--+--+--+ +--+--+--+--+

RGBA
rgb with alpha channel last (big-endian)

Component	color	depth	pstride	offset	rtsride	size
0	R	8	4	0	width*4	rstride * height
1	G	8	4	1
2	B	8	4	2
3	A	8	4	3

+--+--+--+--+ +--+--+--+--+
|R0|G0|B0|A0| |R1|G1|B1|A1| ...(two pixel representation, in octet)
+--+--+--+--+ +--+--+--+--+

extended format view

"GRAY8" 8-bit grayscale "Y800" same as "GRAY8"
        Component 0: Y
          depth:           8
          offset:          0
          pstride:         1
          default rstride: RU4 (width)
          default size:    rstride (component0) * height
 
        Image
          default size:    size (component0)
 
"RGBA" rgb with alpha channel last
       +--+--+--+--+ +--+--+--+--+
       |R0|G0|B0|A0| |R1|G1|B1|A1| ...
       +--+--+--+--+ +--+--+--+--+
 
        Component 0: R
          depth:           8
          pstride:         4
          offset:          0
 
        Component 1: G
          depth:           8
          pstride:         4
          offset:          1
 
        Component 2: B
          depth            8
          pstride:         4
          offset:          2
 
        Component 3: A
          depth            8
          pstride:         4
          offset:          3
 
        Image
          default rstride: width * 4
          default size:    rstride (image) * height

more digging

/gst-plugins-base/gst-libs/gst/video/video-format.c

#define PACK_GRAY8 GST_VIDEO_FORMAT_AYUV, unpack_GRAY8, 1, pack_GRAY8
static void
unpack_GRAY8 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
    gpointer dest, const gpointer data[GST_VIDEO_MAX_PLANES],
    const gint stride[GST_VIDEO_MAX_PLANES], gint x, gint y, gint width)
{
  const guint8 *restrict s = GET_LINE (y);
 
  s += x;
 
  video_orc_unpack_GRAY8 (dest, s, width);
}
 
static void
pack_GRAY8 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
    const gpointer src, gint sstride, gpointer data[GST_VIDEO_MAX_PLANES],
    const gint stride[GST_VIDEO_MAX_PLANES], GstVideoChromaSite chroma_site,
    gint y, gint width)
{
  guint8 *restrict d = GET_LINE (y);
 
  video_orc_pack_GRAY8 (d, src, width);
}
 
#define DPTH8 8, 1, { 0, 0, 0, 0 }, { 8, 0, 0, 0 }
#define PSTR1 { 1, 0, 0, 0 }
#define PLANE0 1, { 0, 0, 0, 0 }
#define OFFS0 { 0, 0, 0, 0 }
#define SUB4 { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
#define PACK_GRAY8 GST_VIDEO_FORMAT_AYUV, unpack_GRAY8, 1, pack_GRAY8
MAKE_GRAY_FORMAT (GRAY8, "raw video", DPTH8, PSTR1, PLANE0, OFFS0, SUB4,
      PACK_GRAY8),

video-format.c

fourcc on linux
MSDN on stride

reflow

anonymous@undisclosed.example.com (Anonymous) — Sat, 16 Jan 2021 14:01:59 +0000

Reflow Methods

no need to follow this profile 100%, more important for big copper pours and delicates.

hot plate

bonus point for three Temperature sensors and air circulation.
but only good for one side, needs direct contact with plate

Toaster

more at
https://wiki.telavivmakers.org/index.php/OVEN_REFLOW

convection toaster mod

this how a normal convection fan looks like

the 25L old one, model PILOT W-V30K

respo

anonymous@undisclosed.example.com (Anonymous) — Sat, 21 Dec 2019 00:22:50 +0000

firmware

srxe_cc1101

modified Arduboy library

Flashing

pinouts

Test Points (grouped, external access available through battery compartment)
TCK top left if oriented with SW1 on top of board
Layout: TCK   TMS   TDO    TDI
                 RST   MISO
        SCK   GND   VCC    MOSI
 TCK - ATmega128RFA1 pin 3 [PF4:ADC4:TCK]
 SCK - ATmega128RFA1 pin 37 [PB1:SCK:PCINT1]
 TMS - ATmega128RFA1 pin 4 [PF5:ADC5:TMS]
 GND - GND
 RST - ATmega128RFA1 pin 12 [RSTN]
 TDO - ATmega128RFA1 pin 5 [PF6:ADC6:TDO]
 VCC - VCC (3.3V)
MISO - ATmega128RFA1 pin 39 [PB3:MISO:PDO:PCINT3]
 TDI - ATmega128RFA1 pin 6 [PF7:ADC7:TDI]
MOSI - ATmega128RFA1 pin 38 [PB2:MOSI:PDI:PCINT2]
-------------------------------------------------------
Test Points (not in above group) SCL, SDA, CLK0
 SCL - ATMega128RFA1 pin 25 [PD0:SCL:INT0], U5 pin 6
 SDA - ATMega128RFA1 pin 26 [PD1:SDA:INT1], U5 pin 7
CLK0 - ATmega128RFA1 pin 53 [PE7:ICP3:INT7:CLKO], R29 to Display pin 6
-------------------------------------------------------
ISP Pads
Pin 1 top left if oriented with SW1 on top of board
Layout: 1 2
        3 4
        5 6
 1 - MISO, ATmega128RFA1 pin 39 [PB3:MISO:PDO:PCINT3]
 2 - VCC (3.3V)
 3 - SCK, ATmega128RFA1 pin 37 [PB1:SCK:PCINT1]
 4 - MOSI, ATmega128RFA1 pin 38 [PB2:MOSI:PDI:PCINT2]
 5 - RST, ATmega128RFA1 pin 12 [RSTN]
 6 - GND

from pastebbin, source

USBASP V2.0

eereta:

found here
does not support its tx/rx ports - see usbasp_tty for 2015 windows exe

#connect ISP lines between USBASP and XEresponder #connect USBISP V2 to pc

git clone https://github.com/bitbank2/SMART_bootloader
/bin/avrdude -C/etc/avrdude.conf -v -patmega128rfa1 -cusbasp -Pusb -e -Ulock:w:0x3F:m -Uefuse:w:0xF5:m -Uhfuse:w:0xD8:m -Ulfuse:w:0xFF:m
/bin/avrdude -C/etc/avrdude.conf -v -patmega128rfa1 -cusbasp -Pusb -Uflash:w:./SMART_bootloader/ATmegaBOOT_atmega128rfa1.hex:i -Ulock:w:0x0F:m

srxe_cc1101

srxe_cc1101 hookup

Tools

pogo pins

sgmkvisit

anonymous@undisclosed.example.com (Anonymous) — Tue, 29 Jan 2019 02:44:39 +0000

links

http://wiki.sgmk-ssam.ch/wiki/
this wiki
bracelte pull-req
cenon native gerber editor for linux/osx

Sajica_circuit

photos

items

aliEx

aliExp

shrooms

anonymous@undisclosed.example.com (Anonymous) — Mon, 29 Mar 2021 19:17:03 +0000

fantasia 1940

siteidiot

anonymous@undisclosed.example.com (Anonymous) — Wed, 05 Dec 2018 21:42:52 +0000

some tools used on/in idiot.io blog

sitemap

generate a sitemap

git clone git@github.com:c4software/python-sitemap.git
cd python-sitemap.git
python main.py --domain https://idiot.io --output sitemap.txt

you can then push the sitemap.txt to the webserver using

 rsync -av --rsync-path="sudo rsync" dev/python-sitemap/sitemap.txt idiot:/var/www/html

note the trick here with passing sudo rsync to the remote, it will bypass permission issues on the remote. (need to fix that good, a better option is to run this as a cron job on the server every few days

slam

anonymous@undisclosed.example.com (Anonymous) — Mon, 28 Dec 2020 19:38:11 +0000

using myneteye S210

#following https://www.ybliu.com/2020/07/ORB-SLAM3-demo.html
sudo apt-get install build-essential
sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
sudo apt-get install libboost-all-dev libssl-dev libglew-dev libeigen3-dev
#opencv
git clone https://github.com/opencv/opencv.git
git checkout 3.3.1
mkdir build && cd build
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..
make -j3 
sudo make install
#if erro of scope follow
# https://www.programmersought.com/article/49391528040/
 
 
#pengolin
git clone https://github.com/stevenlovegrove/Pangolin.git
cd Pangolin && mkdir build && cd build 
cmake .. -DCMAKE_BUILD_TYPE=Release 
make -j 3 
make install
 
#orb-SLAM3
git clone https://github.com/UZ-SLAMLab/ORB_SLAM3
cd ORB_SLAM3
chmod a+x build.sh
./build.sh
 
#get sample code
 
wget -c http://robotics.ethz.ch/~asl-datasets/ijrr_euroc_mav_dataset/machine_hall/MH_01_easy/MH_01_easy.zip
 
unzip MH_01_easy.zip -d MH01
 
#Replace pathDatasetEuroc to you dataset path containing MH01.
# mono_euroc:
 
cd Examples/Monocular
./mono_euroc ../../Vocabulary/ORBvoc.txt EuRoC.yaml "$pathDatasetEuroc"/MH01 ./Examples/Monocular/EuRoC_TimeStamps/MH01.txt dataset-MH01_mono
mono_inertial_euroc:
 
cd Examples/Monocular-Inertial
./mono_inertial_euroc ../../Vocabulary/ORBvoc.txt EuRoC.yaml "$pathDatasetEuroc"/MH01 EuRoC_TimeStamps/MH01.txt dataset-MH01_monoi
 
 
#links
#https://github.com/slightech/MYNT-EYE-S-SDK

slimegpt

anonymous@undisclosed.example.com (Anonymous) — Wed, 12 Jul 2023 14:36:59 +0000

connecting our slime to an LLM.

Slime

slime is a cross-linked polymer, a non-newtonian fluid

Q: can you find correlation between language models and slime as network
A:

While the concept of slime and language models may seem unrelated at first, there are some interesting parallels we can draw between them when considering their network-like nature.

1. Network Structure: Both language models and slime involve a network-like structure. Language models, such as GPT-3.5, consist of intricate interconnected nodes (artificial neurons) organized in layers. Similarly, slime can be seen as a network of polymer chains linked together, forming a structure that gives it its unique properties.

2. Connectivity: In language models, each artificial neuron is connected to multiple others, allowing information to flow through the network. Similarly, in slime, the polymer chains are connected or cross-linked, allowing the material to stretch and deform while maintaining its integrity.

3. Emergent Properties: Both language models and slime exhibit emergent properties. Language models can generate coherent and contextually relevant text by leveraging the patterns and connections within the network. Slime, on the other hand, emerges as a stretchy and squishy substance due to the cross-linking of polymer chains, creating a unique material with properties distinct from its individual components.

4. Flexibility and Adaptability: Language models, like GPT-3.5, can learn from vast amounts of text data and adapt to different contexts and tasks. Similarly, slime can be modified by adding various ingredients like colors, glitters, or even small objects, making it adaptable and customizable.

While the underlying mechanisms and purposes of language models and slime differ significantly, exploring the network-like aspects of their structure and properties can provide an interesting perspective on their similarities.

Procedure

Measure 2 tsp. of polyvinyl alcohol polymer solution into a cup.
Add 1/4 teaspoon of Borax solution. Mix well with a wooden stick.

PREPARATION OF SOLUTIONS FOR THIS EXPERIMENT:

4% Polyvinyl Alcohol (PVOH) Solution

Dissolve 40 grams of PVOH powder in 900 ml of distilled water.
Heat gently for several hours until dissolved (solution turns clear).
Make sure the solution does not boil, or the properties will be altered.
Dilute to 1 liter with more water.
The prepared solution should be clear and somewhat viscous. It stores well in the refrigerator until needed.

4% Sodium Borate, Na2B4O7 * 10 H2O, Solution

Dissolve 10 grams of sodium borate in 250 ml of distilled water.
You can obtain Borax at the grocery store near the laundry detergent.

methods from this two links

ingredients

borax
- Sodium tetraborate - decahydrate
- Na2B4O7 x 10H2O, 99.9%
- tetraboritan_sodny_-_borax_1_kg_cas_1303-96-4_na2b4o7_x_10h2o.pdf
polyvinyl alcohol 16% (PVA)
- Dry matter: 16 +- 1.5 wt. %
- Viscosity of 4% water solution: 9 – 13 mPa.s
- Acid number: 4.5 max. mg KOH.g -1
- Saponification number: 130 +- 15 mg KOH.g -1
- Specific conductivity: max. 350 m S.cm -1
- sloviol_r_-_polyvinylalkohol_16_kg_cas_9002-89-5_pva.pdf

Code

see github.com/anonette/slimeGPT

circuit

esp32 pinout > via upesy.fr

touch

more at lickometer

audio

SYNTH

https://www.youtube.com/watch?v=P4SwaI09Zxc and the amazing music hardware hacking by collins (pdf)

MIXING

https://circuitdigest.com/electronic-circuits/single-transistor-audio-mixer-circuit

MEDIA

whatsapp_video_2023-06-29_at_14.07.33.mp4

solder

anonymous@undisclosed.example.com (Anonymous) — Fri, 12 Jun 2020 08:57:47 +0000

paste

solderpasterevivel.mp4

soundlocal

anonymous@undisclosed.example.com (Anonymous) — Sun, 30 Dec 2018 21:03:16 +0000

Far-field Voice Capture
Acoustic Source Localization - wp
Beamforming
Noise Suppression
De-reverberation
Acoustic Echo Cancellation

seed v2 mic array module

ALiex bare board

also the ESP32-wrover lyratd

speakeasy

anonymous@undisclosed.example.com (Anonymous) — Sat, 19 Mar 2022 10:13:10 +0000

SpeakEasy

a tool to train young ones in vowels and speak

threejs

https://hofk.de/main/threejs/Hummel%20Mara/14_hummel_bumblebee.html https://type76.github.io/projects/baobab/ https://io76.com/hi/

Analog

Lissajous_curve

image from jammercade

more here> https://www.nutsvolts.com/magazine/article/build-an-oscilloscope-octopus

laser and scope community links

web app

using threeJS audio section

start

anonymous@undisclosed.example.com (Anonymous) — Sat, 03 Feb 2024 11:34:23 +0000

help and syntax

streaming

anonymous@undisclosed.example.com (Anonymous) — Tue, 29 Oct 2019 22:11:27 +0000

VOD

git clone https://github.com/nytimes/nginx-vod-module-docker ngvod
cd ngvod
docker build . 
 
docker run -d -p 3030:80 \
-v $PWD/videos:/opt/static/videos \
-v $PWD/nginx.conf:/usr/local/nginx/conf/nginx.conf \
nytimes/nginx-vod-module
 
docker exec -it goofy_container sh

192.168.0.100:3030

using docker running alpine

to test

$ curl -X HEAD -I http://localhost:3030
HTTP/1.1 403 Forbidden
Server: nginx/1.16.1
Date: Tue, 29 Oct 2019 22:07:59 GMT
Content-Type: text/html
Content-Length: 153
Connection: keep-alive

this is a good summary of “expected behaviour” but still no dice.

sugerbase

anonymous@undisclosed.example.com (Anonymous) — Thu, 03 Sep 2020 18:57:32 +0000

notes on boiling sugar

according to the old texts you need three elements to boil proper sugarbase

Sugar, Water and an anti crystallization agent.

the agent

the agent is used to inhibit the crystallization of the sugar into caramel (hard, sticky, stinky mess) we are now mostly using Cream of Tartar, a byproduct of wine making. but the texts mention (glucose) syrup and others as well, like honey and lemon.

we tested

corn syrup - (fructose) with good results, but it's tricky to get everywhere and not easy to work with
Glucose syrup - similar to corn syrup, you can make it yourself

Texts

The production and processing of sugar (NPers. šekar, from Skt. ṡárkarā-, “ground or candied sugar,”[…]) was already known in Sasanian Persia around 460 CE, and the Chinese ascribed the invention of the process of the refining of sugar syrup into hard sugar to the Sasanians (Laufer, Sino-Iranica, p. 376). The 9th-century Zoroastrian text […] mention that at Nowruz, in the morning before speaking, one ate white sugar.src

https://en.wikipedia.org/wiki/Rock_candy#Misri

susv

anonymous@undisclosed.example.com (Anonymous) — Tue, 08 Oct 2019 20:30:21 +0000

sousveillance

Sousveillance (/suːˈveɪləns/ soo-VAY-lənss) is the recording of an activity by a participant in the activity, typically by way of small wearable or portable personal technologies. wikipedia

keyloggers are legal and free, here is a list of the top 10 out there

microsoft has a built-in tool that collects all your text written > techspot coverage, and here

seems to be gone as of 09/2019

Your own file can be found at: 
C:\Users\%user%\AppData\Local\Microsoft\InputPersonalization\TextHarvester

text from paper

The Visible Man: An FBI Target Puts His Whole Life Online
Clive Thompson Email 05.22.07

Hasan Elahi whips out his Samsung Pocket PC phone and shows me how he's keeping himself out of Guantanamo. He swivels the camera lens around and snaps a picture of the Manhattan Starbucks where we're drinking coffee. Then he squints and pecks at the phone's touchscreen. “OK! It's uploading now,” says the cheery, 35-year-old artist and Rutgers professor, whose bleached-blond hair complements his fluorescent-green pants. “It'll go public in a few seconds.” Sure enough, a moment later the shot appears on the front page of his Web site, TrackingTransience.net.

There are already tons of pictures there. Elahi will post about a hundred today — the rooms he sat in, the food he ate, the coffees he ordered. Poke around his site and you'll find more than 20,000 images stretching back three years. Elahi has documented nearly every waking hour of his life during that time. He posts copies of every debit card transaction, so you can see what he bought, where, and when. A GPS device in his pocket reports his real-time physical location on a map.

Elahi's site is the perfect alibi. Or an audacious art project. Or both. The Bangladeshi-born American says the US government mistakenly listed him on its terrorist watch list — and once you're on, it's hard to get off. To convince the Feds of his innocence, Elahi has made his life an open book. Whenever they want, officials can go to his site and see where he is and what he's doing. Indeed, his server logs show hits from the Pentagon, the Secretary of Defense, and the Executive Office of the President, among others.

The globe-hopping prof says his overexposed life began in 2002, when he stepped off a flight from the Netherlands and was detained at the Detroit airport. He says FBI agents later told him they'd been tipped off that he was hoarding explosives in a Florida storage unit; subsequent lie detector tests convinced them he wasn't their man. But with his frequent travel — Elahi logs more than 70,000 air miles a year exhibiting his art work and attending conferences — he figured it was only a matter of time before he got hauled in again. He might even be shipped off to Gitmo before anyone realized their mistake. The FBI agents had given him their phone number, so he decided to call before each trip; that way, they could alert the field offices. He hasn't been detained since.

So it dawned on him: If being candid about his flights could clear his name, why not be open about everything? “I've discovered that the best way to protect your privacy is to give it away,” he says, grinning as he sips his venti Black Eye. Elahi relishes upending the received wisdom about surveillance. The government monitors your movements, but it gets things wrong. You can monitor yourself much more accurately. Plus, no ambitious agent is going to score a big intelligence triumph by snooping into your movements when there's a Web page broadcasting the Big Mac you ate four minutes ago in Boise, Idaho. “It's economics,” he says. “I flood the market.”

Elahi says his students get it immediately. They've grown up spilling their guts online — posting Flickr photo sets and confessing secrets on MySpace. He figures the day is coming when so many people shove so much personal data online that it will put Big Brother out of business.

For now, though, Big Brother is still on the case. At least according to Elahi's server logs. “It's really weird watching the government watch me,” he says. But it sure beats Guantanamo.

svg2shenzhen

anonymous@undisclosed.example.com (Anonymous) — Thu, 14 Feb 2019 23:17:39 +0000

svg2shenzhen is a wrapper that streamlines workflow of “gerberizing” inkscape SVG to something you can send to a fabrication house.

how to bypass kicad when exporting

in inkscape after you hit “Extensions>svg2shnzn>export kicad” your output will be a .kicad_pcb file.

“officially” you should then head over to kicad and plot that file into a valid gerber output using kicad plotter.
i prefer to get to the gerber output as fast as possible. and Kicad python integration allows for just that!

for this to work you will need a gerber viewer, i use gerbv, which also allows for minor editing and transformations to your gerber layers, see the last part of the video for an example. and a python script.

this script will output a plot directory with all the righteous gerber extensions and even add numbering for easier persistante viewing in unruly gerber viewers.

the python env im using has already been integrated with kicad tools, if you installed kicad on your system it should work . you do need kicad installed.

2019-02-11_10-05-59.mp4

til

anonymous@undisclosed.example.com (Anonymous) — Fri, 30 Nov 2018 00:14:13 +0000

TIL

Byobu

split vertically on putty/win is

Ctrl+a+|

split vertically on putty/win is

Ctrl+a+%

To see key binding do

byobu list-keys | grep split

NEVER kill all things with +d

Permissions

To change ownership on a dir use

sudo chown -R http:http /var/www/html/

ffmpeg

Video to webm bash script from 4chan - https://pastebin.com/nAWPFtWc

lollipops

The term may have derived from the term “lolly” (tongue) and “pop” (slap).
Alternatively, it may be a word of Romany origin being related to the Roma tradition of selling toffee apples sold on a stick. Red apple in the Romany language is loli phaba.

https://en.wikipedia.org/wiki/Lollipop

An estimated 2,000 insect species are consumed around the world [link]

Hard candies are non-crystalline, amorphous candies containing about 98% (or more) solid sugar Amazon list for books on the subject

kill

$ ps aux | grep attach username <pid_here> .............. 0:00 docker attach <CONTAINER_HASH_HERE> username 
<another_pid> .............. 0:00 grep --color=auto attach $ kill -9 <pid_here>

links

Cd  _site/

ln -sT ../downloads/ downloads

Ls -la

mount

I needed to connect to EC2 instance using .pem key + connect using normal username-password mode. I solved these requirements by including the Host aliases in ~/.ssh/config file. Example:

Host ssh_using_key HostName abc.myawesomesite.com User ubuntu IdentityFile ~/.ssh/MyPrivateKey.pem Compression 
yes Host ssh_using_userpass HostName 173.193.72.103 User root Port 2222

Now as described above, go to File > Connect to Server in Nautilus. Example:

For SSH using Key:

Server = ssh_using_key (as in the ~/.ssh/config file) Type = SSH Folder = /var/www [leave User Details BLANK.]

For ntfs-3g to linux: Mount /dev/sdb2 /mnt/mountpoint
$ sshfs [user@]host:[dir] mountpoint [options] (src)

Attiny85

How to read one wire high low bit
https://forum.arduino.cc/index.php?topic=451489.msg3153616#msg3153616

HSV colorspace - http://www.vagrearg.org/content/hsvrgb

Logs

Tailon -f xxx.log

This will stream your log on localhost:8080 !

RSPI

Install opencv3+python- source
http://www.algissalys.com/how-to/sickrage-sabnzbd-raspberry-pi-tvpi-part-1

Automount ntfs - https://gist.github.com/etes/aa76a6e9c80579872e5f

SSH

Share your connection with a friend - https://github.com/flplv/ssh-allow-friend
Configure your .ssh/config for your hosts and identifyfile

openCV

Install visual studio code on rapsi - https://code.headmelted.com/

NZB

Stop all o raspi

pi@iriot:/etc/init.d $ sudo service sickrage stop
pi@iriot:/etc/init.d $ sudo service sabnzbdplus stop
pi@iriot:/etc/init.d $ sudo service couchpotato stop

Git

learn interactive - https://learngitbranching.js.org

Clean and compress git repo - (doesnt seem too do much) http://stevelorek.com/how-to-shrink-a-git-repository.html

Centos

Start vbox php admin
Setup VNC server

x230

How to detect docking and apcid

something to have as an image to the page list

tinyidiot

anonymous@undisclosed.example.com (Anonymous) — Wed, 09 Jan 2019 13:51:49 +0000

TinyIdiot

tinytony for esp8266

drv8833

https://www.pololu.com/product/2130

code

https://github.com/idiot-io/TinyTony

townofidiots

anonymous@undisclosed.example.com (Anonymous) — Thu, 03 Sep 2020 18:56:15 +0000

view-source_https_web.archive.org_web_20200331165533_https_townofidiots.io_.html.zip

https://web.archive.org/web/20200331165533/https://townofidiots.io/

uvcandy

anonymous@undisclosed.example.com (Anonymous) — Tue, 28 Apr 2020 19:39:39 +0000

draft video

400nm uv 5050

98t2qzw0a1.mp4

https://www.newswise.com/articles/narrow-wavelength-of-uv-light-safely-kills-drug-resistant-bacteria-finds-columbia-s-center-for-radiological-research

weave

anonymous@undisclosed.example.com (Anonymous) — Mon, 12 Nov 2018 22:13:21 +0000

weave

in 2014 we were asked by textile dept to hack their industrial weaving machine. its vamatex industrial weaving machine

we are trying to get a WIF (WEAVING INFORMATION FILE) into its memory cards directly from a WIF editor.

the problem

currently the only method to upload patterns to the machine is by export to image/text file from a pc and then write it line by line to the UV EPROM card

that means countless hours of writing line by line into the eeprom writer

data dump -gist

the machine

schematics VAMATEX machine

click for full res!

card pinout on the bottom right corner

and this

media

gallery imgur #1
gallery google #2

xerox

anonymous@undisclosed.example.com (Anonymous) — Fri, 12 Jun 2020 08:56:59 +0000

used extensively in Voynich_circuit

ween the lines and from the information I’ve received, it looks as though Xerox is going to sell out remaining stock of the A3 ColorQube MFPs and not refresh the line, ending what has been a somewhat short run on this alternative print technology in the A3 environment.

Xerox launched the A3 MFP ColorQube program to much fanfare in 2009. Key attributes were eye-popping image quality, a supposedly smaller carbon footprint and notably a game-changing billing/meter system that charged customers on a sliding scale based on the color page coverage. Customers that printed an email with a small color logo would pay a very low color print cost compared to a customer that was printing a full color page filled with graphics and photos, who would pay more.

At the time, I thought this innovative pricing plan would revolutionize the industry but for some reason Xerox reps never seemed to warm up to the products. Perhaps it was too “different” than xerography (laser printing) or they didn’t think customers would like it. Maybe they just didn’t want to have to explain the differences and benefits over laser. Or, maybe Xerox just never comp’d the reps enough to make them want to sell it.

Whatever the reason, my sources say the d

https://industryanalysts.com/xerox-retiring-solid-ink/

https://gist.github.com/blowback/8598657

Xerox spool areas

https://www.support.xerox.com/support/colorqube-8900/downloads/enus.html? operatingSystem=winxp