usmile PPM Encoder With 10pin Input & 4pin Output Cable For Pixhawk/PPZ/MK/MWC/Pirate Flight Control The PPM Encoder plugs into the PWM servo output ports of any R/C receiver and encodes them into a PPM pulse suitable for many autopilots (e.g. Pixhawk). Modifications to the R/C receiver are not necessary. The whole project is based around the ATMEL ATMEGA328p AVR processor and all timing is done within interrupts so accuracy and stability is optimized. The design of the PPM Encoder is based on the Paperazzi PPM Encoder.Dimension: 28 x 19 x 5mm Important Note: The firmware comes pre-configured to read 8 Channels. In case you would like to change the settings of the PPM encoder to invert the PPM signal and change the fail safe pre-defined values you will need an AVR ISP programmer in order to reprogram it. Included:PPM Encoder, 10Pin input cable 60mm, 4Pin output cable 100m