We have written an [https://github.com/pololu/pololu-rpi-slave-arduino-library Arduino library] for our our 32U4 family of boards that lets them act as an I²C slave and provides a framework for communication between the ATmega32U4 and a Raspberry Pi master. | We have written an [https://github.com/pololu/pololu-rpi-slave-arduino-library Arduino library] for our our 32U4 family of boards that lets them act as an I²C slave and provides a framework for communication between the ATmega32U4 and a Raspberry Pi master. |