This idea was based on the concept of making a “Sound Catcher” pixel display. I’ve been wanting to make this for a long time, but only recently made the time to put it together. I originally wanted to turn this into a display for ambient sound in the room, but ended up making it into a general audio display and clock.
The video starts off with the display in clock mode, before showing the FFT of a song being chromecast onto a TV. The audio out is sent to the display. I also use a web UI to change displays and set the brightness.