the tech lab.

A board built for radio firmware, so you can stop stacking CC1101 modules on a breadboard. Two sub-GHz radios, 433 and 868 MHz, an ESP32-S3, a Qwiic port and a mikroBUS, all over USB-C, and a catalog of verified firmware.

One ESP32 and one CC1101 module driving two radio worlds from Home Assistant - Somfy RTS at 433.42 MHz, and KeeLoq 868 MHz shutters cloned from an existing remote, with no gateway and no manufacturer key. The lesson of the project - I chased an encryption key for days before finding out the motor simply accepts a replayed frame.

Measure my water use live with a single Hall-effect flow meter on the main inlet and an ESP32 running ESPHome.

Complete reverse engineering of the Extraflame Black Label T009_3 Wi-Fi module, to replace its dependency on the Italian Omnyvore cloud with local control over MQTT.