Arduino core for the tinyAVR 0/1/2-series - Ones's digit 2,4,5,7 (pincount, 8,14,20,24), tens digit 0, 1, or 2 (featureset), preceded by flash in kb. Library maintainers: porting help available!

Collection of AVR Programmers and Accessories

Collection of cartridges, adapters, and replacements for the Commodore C64

Small FM Radio with RDS and OLED

Simple ISP Flash Tools for various Microcontrollers

I²C OLED on an ATtiny10/13/202

USB Type-C Power Delivery Trigger and Monitoring Board

Power Supply Analyzer with USB Interface

2.5kV Isolator for the USB Power Rail

Rotary Encoder with I²C Interface

Collection of AVR Development Boards

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

HV UPDI / UPDI programmer software for Arduino (targets Tiny AVR-0/1/2, Mega AVR-0 and AVR-DA/DB MCUs)

Real-Time Clock USB-Stick

Change the Pitch of your Voice

Turn your USB PD Power Adapter into an AC Power Source

NanoUPDI: The smallest USB Type-C serial UPDI programmer for your projects

USB Serial Controlled 2.4GHz Transceiver

Arduino compatible C library to support the PTC in the AtTiny 1-Series

This DIY open source hardware connects inline with any UPDI programmer to provide a HV UPDI programming solution for tinyAVR® 0/1/2 series MCUs. Compatible with UPDI programmers that operate with jtag2updi, avrdude, pyupdi, MPLAB X IDE, MPLAB X IPE, PlatformIO and Arduino IDE using any target voltage from 3 to 5V.