GitHub

Arduino library for PCA9634 I2C 8 bit PWM LED driver, 8 channel.

This library is to control the I2C PCA9634 PWM extender. The 8 channels are independently configurable in steps of 1/256. This allows for better than 1% fine tuning of the duty-cycle of the PWM signal ...
GitHub

Arduino library for MCP23008 8 channel I2C port expander.

This library gives easy control over the 8 pins of a (I2C) MCP23008 chip. This IC is strongly related tot the MCP23017 I2C port expander - https://github.com ...