A spectrum analyzer is a great way to create exciting visuals that pulse in time with music. [pyrograf] wanted a big one as a display piece, so set about whipping up something of their very own.

Bluetooth A2DP 2 Articles ESP32 Spectrum Analyzer Taps Into Both Cores December 10, 2020 by Tom Nardi 16 Comments ...

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 ...