Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision | ||
tinyidiot [2018/12/23 01:12] – yair | tinyidiot [2019/01/09 15:51] (current) – yair | ||
---|---|---|---|
Line 7: | Line 7: | ||
tinytony for esp8266 | tinytony for esp8266 | ||
- | drv8830 [[http:// | ||
- | built of work by sparkfun [[https:// | ||
+ | {{: | ||
- | {{:pasted: | + | ==== drv8833 === |
+ | https:// | ||
- | {{:nodemcu_pins.png? | + | {{:pasted: |
- | ##wiring | ||
- | ESP DRV 8830 | ||
- | GPIO 4 | SDA | ||
- | GPIO 5 | SCL | ||
- | VIN | Vcc | ||
- | GND | Gnd | ||
- | * **connect to the ESP only with I2C pulled up with 3.3v.** | ||
- | * Motor (+) and OUT1, motor (-) and OUT2 | ||
- | * 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 | ||
- | * 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 SCL and 3.3 v | ||
- | * 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 | ||
- | |||
- | |||
- | {{: | ||
- | "From this table, the write address is 0xC0 and the read address is 0xC1. The device address specified from Arduino will be " | ||
==== code ==== | ==== code ==== | ||
https:// | https:// | ||
- | ===i2c issues== | ||
- | |||
- | cant get any other address to motors but 0x64 | ||
- | |||
- | #define PIN_WIRE_SDA (4) | ||
- | #define PIN_WIRE_SCL (5) | ||