attiny412

Small FM Radio with RDS and OLED

2.5kV Isolator for the USB Power Rail

Rotary Encoder with I²C Interface

Single-Cell Li-Ion, LiPo and LiFePO4 Battery Capacity Tester

Change the Pitch of your Voice

Turn your USB PD Power Adapter into an AC Power Source

Simple Fitness Monitoring Device for your Pet Hamster

Digital watchdog timer with I2C interface using the ATTINY412. Firmware and Linux driver.