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tinyidiot [2018/12/19 12:31] – created yairtinyidiot [2018/12/26 14:55] – yair
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-TinyIdiot+====== TinyIdiot ====== 
  
 tinytony for esp8266 tinytony for esp8266
  
-drv8830 [[http://www.tij.co.jp/jp/lit/ds/symlink/drv8830.pdf|datasheet]] \\ + 
-built of work by sparkfun minimoto breakout [[https://jiwashin.blogspot.com/2016/09/drive-dc-motor-by-drv8830-and-esp8266.html|and jiwashin]] and [[https://makers-with-myson.blog.so-net.ne.jp/2014-05-15|here]]+{{:nodemcu_pins.png?direct&400|}} 
 + 
 +==== drv8833 === 
 +https://www.pololu.com/product/2130 
 + 
 +{{:pasted:20181226-125449.png}} 
 + 
 +==== drv8830==== 
 +drv8830 [[http://www.ti.com/lit/ds/symlink/drv8830.pdf|datasheet]] \\ 
 +built of work by sparkfun [[https://github.com/sparkfun/SparkFun_MiniMoto_Arduino_Library|minimoto]] breakout [[https://jiwashin.blogspot.com/2016/09/drive-dc-motor-by-drv8830-and-esp8266.html|and jiwashin]] and [[https://makers-with-myson.blog.so-net.ne.jp/2014-05-15|here]]
  
  
 {{:pasted:20181219-102721.png?direct&400}} {{:pasted:20181219-102721.png?direct&400}}
-  + 
   ##wiring   ##wiring
-  ESP         DRV 8830 +  ESP        DRV 8830 
-  GPIO 4 |   SDA +  GPIO 4    |   SDA 
-  GPIO 5 |   SCL+  GPIO 5    |   SCL
   VIN     |   Vcc   VIN     |   Vcc
   GND     |   Gnd   GND     |   Gnd
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   * **connect to the ESP only with I2C pulled up with 3.3v.**   * **connect to the ESP only with I2C pulled up with 3.3v.**
   * Motor (+) and OUT1, motor (-) and OUT2   * Motor (+) and OUT1, motor (-) and OUT2
-  * A 1 nF ceramic capacitor between + and - of the motor+  * A 1 nF (102) ceramic capacitor between + and - of the motor
   * A resistance of 0.2 Ω between ISENSE and GND of the DRV 8830   * A resistance of 0.2 Ω between ISENSE and GND of the DRV 8830
-  * 0.1 μF ceramic capacitor between VCC and GND of the DRV 8830+  * 0.1 μF (104) ceramic capacitor between VCC and GND of the DRV 8830
   * A 10 kΩ resistor between SDA and 3.3 v   * A 10 kΩ resistor between SDA and 3.3 v
   * A 10 kΩ resistor between SCL and 3.3 v   * A 10 kΩ resistor between SCL and 3.3 v
   * 5 V output such as USB serial and VIN of ESP - WROOM - 02 board   * 5 V output such as USB serial and VIN of ESP - WROOM - 02 board
   * GND of USB serial etc. and GND of ESP - WROOM - 02 board   * GND of USB serial etc. and GND of ESP - WROOM - 02 board
 +
 +
 +{{:pasted:20181220-195530.png}}\\
 +"From this table, the write address is 0xC0 and the read address is 0xC1. The device address specified from Arduino will be "0x60" because it will be a value [[https://www.miniwebtool.com/bitwise-calculator/bit-shift|shifted 1 bit to the right]]." [[https://makers-with-myson.blog.so-net.ne.jp/2014-05-15|src]]
 +==== code ====
 +https://github.com/idiot-io/TinyTony
 +
 +
 +===i2c issues==
 +
 +cant get any other address to motors but 0x64
 +
 +#define PIN_WIRE_SDA (4)
 +#define PIN_WIRE_SCL (5)
 +