Robot with Raspberry Pi finds back its charging station using Python OpenCV

Demo of a robot with a Raspberry Pi finding back its charging station with Python OpenCV. This robot is equipped with a Raspberry Pi and an Arduino Uno. It uses Python OpenCV to find back its charging station. It is online on WhatsApp so you can chat with it and give commands like 'make a picture and send it to me'. It uses the Yowsup library of Tarek Galal as the WhatsApp client. Thx Tarek!