The LED wall runs on a Teensy microcontroller. It comprises 20m WS2812B LED stripes with a LED every 1,4 cm.

The input for the Teensy is an analog circuit that attaches directly to the speaker wires of a power amplifier to get the music that is played in real time and not a few milliseconds too early before being processed by amplifiers and other components in the audio chain. With the online design tool for data processing on the Teensy a pipeline was create that runs a FFT on the analog input.

Different custom shapes and animations can be displayed. The current animation can be switched by the press of a button.

In one of the images there is a simulator shown that runs on the laptop.