[Johngineer] found himself in need of an I2C sniffer, but didn’t have one available. Necessity is the mother of invention, so he put together this I2C sniffer sketch for Arduino. The arduino … ...

Step-by-step guide on designing and programming a custom I2C slave sensor device using Arduino. Who Won and Lost in Trump’s Tax Bill Scientists tracking ‘interstellar’ object that has come ...

A swappable Arduino-programmable ATMega32U4 Pro Micro (clone) powers it, and the board provides GPIO/I2C breakout pins for unlimited tinkering and customization.