The PiKoder/SPE (UART2PPM) generates a PPM-Stream (50 Hz) for 1 .. 8 channels controlled by UART. The number of channels, the pulse polarity, the chanel values, UART baudrate, and other parameters are programmed via UART or the PiKoder's USB port.

The PiKoder/PPM (USB2PPM) generates a PPM stream (50 Hz) for 1 .. 8 channels. The number of channels, the pulse polarity and the channel values would be controlled through USB port.