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8 Channel PPM Encoder Version 2

8 Channel PPM Encoder Version 2


This improved & reduced PPM encoder board from Paparazzi plugs into the servo output

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The PPM Encoder v2.0 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. PX4FMU). 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.
Firmware is free and was created by John Arne and Olivier Adler.
The design of the PPM Encoder is based on the Paperazzi PPM Encoder.
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.

  • 8Ch inputs 
  • PPM output (Negative or Positive selectable) 
  • Power Supply selector (Solder jumper at bottom) 
  • Open Source Firmware 
  • Fully customizable 
  • Improved PCB layout, is smaller than the original and better organized + extra programmable output.


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