CMG Research has introduced ESP32 Rainbow, a playful yet powerful IoT development board designed for makers, hobbyists, and ...

Build a custom air quality sensor box for 3D printers. Track VOCs, CO2, and more with Home Assistant integration.

[bobricius] is using a custom PCB that holds a pair of ST7789 1.3 inch 240 x 240 IPS displays. Connected over SPI and supported by just about any microcontroller you’d care to use, tossing some ...