An ESP32-WROVER with an RP2040 co-processor in a Raspberry Pi 4 form factor
Portable, open source, ESP32-powered, Arduino-compatible Bluetooth-MIDI controller
Tiny, durable, open source, long-range LoRa GPS tracker
A clever, open hardware add-on board that lets you play your Pocket Operator drum machine like a maraca!
The first affordable, FT8 receiver with an open source RF chip designed and fabricated using open source chip tools