Sure is coarse and rough and irritating, and it gets everywhere. But it can also be beautiful — drag a small ball through it ...

The ESP32 Rainbow is a small computer with a built-in touch keyboard, an integrated display, and a design that’s inspired by the Sinclair ZX Spectrum, with a keyboard layout and rainbow stripe ...

Powered by an ESP32 running FreeRTOS ... is to use OpenCV to create a map of the LEDs from their two-dimensional layout to a lookup table. The Python script sends a command to illuminate a ...