The second prototype of the hybrid rover is in progress: The rover is now controlled by a 28-pin microcontroller from PICAXE, programmed in BASIC. The image above shows the PICAXE project board, the voltage regulator board, the control panel, the power dual h-bridge and the 27 MHz-receiver. The nose cone of the rocket will be equipped with a 27 MHz-transmitter, to transmit data from the rocket to the rover. Again reverse engineering has been used. The 27 MHz-transmitter/receiver is from a toy RC car. The transmitter was rebuilt space saving on a perfboard, modified to run with a lower voltage and additional equipped with a bright flashing LED to indicate the trajectory visual better: On the servo will be a Sharp distance sensor and a directional antenna mounted, so it's possible that the rover not only launch the rocket automatically but also track back then the landing site of the rocket. Yes, comfortable time has started at model rocketry ;-) The two front wheels of the rover also have been manufactured: