This is an over-engineered man hole cover, where a lighting sequence reacts to sound. Software on a Raspberry Pi 2 reads audio data from a Behringer C-2 microphone, this information is used to generate a lighting sequence.

Source Code:

  • Currently unavailable.


Sound reactive manhole cover.
Wiring and assembling the manhole cover.
LUXEON Rebel lumileds (warm white) mounted on aluminium heatsinks.
Behringer C2 microphone mounted in a wooden stocks.
Custom cicruit for connecting meanwell LED drivers to Adafruit 16-channel PWM driver.