Browse hardware designs
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Public designs
Open-source ESP32-C3 platform for ultra-low-power environmental sensor networks powered by recycled LiPo cells. Includes KiCad PCB, PlatformIO firmware (ESP-NOW + ThingSpeak), BME280/BME680 support, deep-sleep optimizations and measured >12 months runtime on typical cells.
QRET Avionics PCBs and firmware for integrating with the propulsion stack
GNSS-powered, seven-segment table clock
DIY universal taster actor for the KNX bus.
The SolarMeshtasticNodeMini (ESP32-C3 + Semtech SX1262 + TI BQ25185 Solar Charger) is a minimalistic Meshcore/Meshtastic compatible device.
Open-Source Zigbee, Thread, wm-Bus, LoRa, LoRaWAN gateway for Home Assistant.
An experimental low power LoRa platform based on the ST STM32U083CCT6 + Heltec RA-62 (Semtech SX1262) + 128MBit Flash and the solar charge controller TI BQ25185
A soldering reflow hot plate based on STM32
A DC-DC buck converter based on an STM32 Nucleo board
A portable UV exposure controller firmware. The project uses a modular architecture with persistent settings, preset storage in Flash, battery protection logic, and an encoder-driven OLED UI.