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Make Etch A Sketch doodles on a VGA screen

Make Etch A Sketch doodles on a VGA screen

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).

Make Etch A Sketch doodles on a VGA screen 3



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His system takes advantage of Sandro Maffiodo’s VGAx library, meaning it doesn’t need much more than a sacrificial VGA cable to draw a low-resolution picture on the display.

You can check out Cai’s Etch A Sketch on Instructables, where you’ll also find the project in its Pong form.

 


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