Cave crabs create cute cacophony

Craft & Design Music

Jimmie P. Rodgers explains his Creepy Cave Crab light/noise synths –

I made these for the Willoughby and Baltic Halloween show at the Charles River Museum of Industry. They use a single Hex Schmitt trigger inverter IC to generate the sound, and two RGB color change LED to generate the lights. I then encased them in friendly plastic, and painted them with silver paint.

– Check out the schematic on his site

Jimmie is also the designer of a new kit available in our Maker Shed –


The Open Heart Kit, an easy-to-animate LED display for use with Arduino

Discuss this article with the rest of the community on our Discord server!


Maker Faire Bay Area 2023 - Mare Island, CA

Escape to an island of imagination + innovation as Maker Faire Bay Area returns for its 15th iteration!

Buy Tickets today! SAVE 15% and lock-in your preferred date(s).