PC Keyboard Full RC LEGO Power Functions 8043 Motorized Excavator by Arduino and Processing

Using PC keyboard to full remote control the LEGO Power Functions Technic set 8043 Motorized Excavator. Processing used to capture keyboard event and send command to Arduino via serial interface (UART). Arduino used as Power Functions IR Remote Control to send LPF RC Protocol infrared signal in Combo direct mode to control four Power Functions M-Motors forward and backward.