Animated ambient lighting and interactive thunder and lightning
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#Interactive Halloween Thunder Effects


This project covers the hardware and software for a Halloween effects system I recently built for a haunted house. When idle, it's a simple programmable ambient light system that cycles between spooky colors. But! There is a hidden foot switch that activates a flash of lightning and the boom of thunder. A well timed tap of the switch can activate an astounding surprise.

The hardware is mostly based on parts I had laying around, but I've provided equivalent links to Adafruit. The main components are:

  • An Arduino with Wave Shield to provide the brains and sound
  • A programmable LED strip
  • Buttons (for adjusting the lighting as well as the foot switch)