Introduction I’ve previously discussed building a Stereo Console which is backlit using a LIFX Z-Strip, We thought it’d be cool if the backlight modulated in conjunction with the music we’re listening to so I set about building an Arduino to sample audio, perform an FFT and then produce a light …

Introduction As part of a larger project, I wanted a way to catpure the audio signal from our HiFi and sample it with an ESP32 Microcontroller. Our HiFi has a handy tape-dubbing output which I’m unlikely to ever use for that purpose, but it’s ideal for connecting the ESP to. Here’s a sample of one …