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Etch-A-Snap — A Raspberry Pi powered Etch-A-Sketch Camera
by twobitarcade
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**Etch-A-Snap** is (probably) the worlds first **Etch-A-Sketch Camera**. Powered by a Raspberry Pi Zero (or Zero W) it snaps photos just like any other camera, but outputs them by drawing to an *Pocket Etch-A-Sketch* screen. Quite slowly.
[The full write up of the project and build instructions are available here](https://www.twobitarcade.net/article/etch-a-snap/).
Photos are processed down to 100x60 pixel 1-bit (black & white) line drawings using `Pillow` and `OpenCV` and then translated into plotter commands by building a network graph representation with `networkx`. The *Etch-A-Sketch* wheels are driven by two 5V stepper motors mounted into a custom 3D printed frame. The *Etch-A-Snap* is entirely portable and powered by 4xAA batteries & 3x18650 LiPo cells.
The *developing time* for a photo is approximately 15-30 minutes depending on complexity.
## 3D Printed Parts
The parts include a frame, 2 drive wheels, 2 control wheels and a camera mount. For best results print in
[The full write up of the project and build instructions are available here](https://www.twobitarcade.net/article/etch-a-snap/).
Photos are processed down to 100x60 pixel 1-bit (black & white) line drawings using `Pillow` and `OpenCV` and then translated into plotter commands by building a network graph representation with `networkx`. The *Etch-A-Sketch* wheels are driven by two 5V stepper motors mounted into a custom 3D printed frame. The *Etch-A-Snap* is entirely portable and powered by 4xAA batteries & 3x18650 LiPo cells.
The *developing time* for a photo is approximately 15-30 minutes depending on complexity.
## 3D Printed Parts
The parts include a frame, 2 drive wheels, 2 control wheels and a camera mount. For best results print in
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