No response from PCA9685 using NODEMCU - Whats wrong with my code?

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•

MaBe
Hi @jameslouiz

with the Espruino implementation for ESP8266 you can use I2C1, which is a c-code implementation of a I2C master
```
I2C1.setup({ scl: NodeMCU.D2, sda: NodeMCU.D1 });

// read
I2C1.readFrom(address, quantity);
// write
I2C1.writeTo(address, data, ...);
```
Maybe you like to check some modules using i2c to get a better understanding for I2C on this page.

You can also try the Espruino servo motor module .

•

jameslouiz in reply to @MaBe

Thanks for your reply @MaBe, but when I use I2C1, I get a strange "NO ACK" error.

Also, could the following be incorrect in any way?

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