After building a Pong game using an Arduino Uno and a VGA monitor, Rob Cai realized this same setup could be used to make Etch A Sketch-style drawings.
Control is surprisingly “Pong-compatible” with two boxes, each with a potentiometer and a button. One knob moves the cursor horizontally and the other vertically. Unlike an actual Etch A Sketch from your childhood, one button chooses the line color, while the other resets the screen (instead of shaking).
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