satisfy soundball, a pastime electronics job when replaces a disco sphere with one made from LEDs (translated) going every which way. This picture shows the gadget before being injected into an enclosure. The final providing is a white job box with a hole in the top with which the diffuser covered blinky sphere is supported.
The primary board holds a collection of the typical suspects: an ATmega328, an MSGEQ7 equalizer, a couple of TLC5940 LED drivers, as well as a footprint for a Bluetooth Shield. The equalizer chip offers [Cornelius] the audio analysis utilized to produce light patterns that go together with the music. But he can still manage the lights manually with a button on the situation or by linking to it through Bluetooth.
Swap out the LED chauffeurs for some solid specify relays as well as you can blink your Christmas lights to the music.