“Etch-A-Snap,” a Raspberry Pi-powered Etch A Sketch camera


As PetaPixel explains,

The camera is powered by Raspberry Pi Zero. After a digital photo is captured, they’re processed down to a 240×144 pixel 1-bit black-and-white line drawing using Pillow and OpenCV. The drawing is then translated into plotter commands by creating a network graph representation with NetworkX. Those plotter commands are carried out by physically moving the Etch A Sketch wheels using two 5V stepper motors built into a custom 3D-printed frame Fitzpatrick created.


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