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You need at least a computer with Python and OpenCV installed. It worked on Mac OS X, Windows with Anaconda and of course runs on Linux (python3-opencv package being only dependency on Debian).
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For full workshop you need an USB camera, raspberry PI (version 2 or 3 preferred), and a servo. Something to do a ramp and colorful balls (glass ones for example).
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Contents:
- template.py contains initial template for participants to move boilerplate aside.
- qlqi.py contains working algorithm that can be explained in around ~4h.
- example.webm - highly compressed test video of balls going down the ramp.
- Code license: Apache, Author: Tomasz Fortuna. Have fun.