Raspberry PI control of RC car by synthesising RF signals

Around two hours of fun - 0.5h analysis of RF signals from controller using rtlsdr / gqrx / audacity, 1h synthesising signals, 0.5h hacking together joystick and "IPC". Laptop in the background doesn't steer - it just shows signal generated with raspberry pi. https://github.com/blaa/rfhacktoolkit