Adafruit CAN Bus BFF #AdafruitLearnSystem - Adafruit Blog

TL;DR

Adafruit has introduced the CAN Bus BFF (Breakout for Friends) to enhance the capabilities of its QT Py boards, allowing these compact microcontrollers to function as powerful Controller Area Network (CAN) bus devices. This opens up new possibilities for hobbyists and makers who want to incorporate CAN bus communication into their projects without dealing with the complexities typically associated with larger hardware.