For display there is a set of retro LED seven-segment modules, and an MSGEQ7 spectrum analyser. The result is a modern radio with FM, line-input, and MP3 player, with all the functions you’d expect.

Posted in Arduino Hacks Tagged hd44780, msgeq7, spectrum analyzer ← Full-color EBook Reader Needs Only 8-bits Of Muscle Link Spam Your Friends With Printed QR Codes → ...