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 ...

So if you want a really cool layout, you have to spend a great amount ... with Dupont connectors for hooking them up to power and data. An ESP32 is used to drive the addressable LED chain, running ...