Plinko exhibit for WOW Kid's museum in Lafayette, CO
A ball is dropped into the clear box. As it drops it hits a series of horizontal bars and falls down through one of six rings (red, green, orange, so on). The ball triggers a photo gate which causes the color of the box to change to the color of the ring the ball fell through.
Originally designed by David Farquharson
The hardware is released under Creative Commons Share-alike 4.0.
The firmware is released under the Beerware license.