The PiKoder/PPM (UART2PPM) will continuously output neutral PPM16 pulse frames (8 channels with 1.5ms pulses each, 20ms total frame length). The channels would be controlled through UART.

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.