I'm trying to create something similar to this project and was looking for something cheap to use in place of the Relay Tester Box.... The project used an old relay tester box to control a colour LED set. The box has four or more potentiometers and some switches which were used as input devices for an arduino.
Any Ideas?
It looks like the relay tester is a glorified set of potentiometers, with a switch or two; the inputs to the Arduino appear to all be analog lines, so you should be able to craft your own, and give it a funky patina of age as you see fit. :-) The schematic of the original relay tester is even included in the author's original post, so designing something similar or identical to the original would be pretty straightforward.
