Arduino-powered Etch-a-Sketch clock - Boing Boing

Arduino-powered Etch-a-Sketch clock Boing Boing Dodgey99 built an Arduino-powered Etch-a-Sketch clock, in which a pair of stepper motors painstakingly draw out the current time. It's got a very low refresh rate, though: the limits of the motors and the Etch-a-Sketch means that it takes more than a ...