Doing sport at home on a treadmill or an elliptical bike is pretty boring, when you’re confined, so to make things more interesting, I’m watching some videos to learn something new while exercising. This time, I found this old video about how to decode QR codes… by hand! Have you ever thought how these were encoded? This video comes from the Robomatics YouTube channel. You recognise easily QR codes thanks to the 3 big squares with the inner white line. Read more...