PPM Encoder Quickstart Guide

The PPM Encoder translates up to 8 PWM (Pulse Width Modulation) into one PPM (Pulse Position Modulation).  This guide will show you how to connect it to your autopilot

Buy PPM Encoder

What you Get

PPM encoder module

• Translates up to eight PWM (pulse width modulation) signals into one PPM (pulse position modulation) signal, 
• This allows you to connect a PWM receiver to a PPMcompatible autopilot over one wire

Three-wire cable (12 cm)

• DF13 three-position to servo cable connects the encoder to the autopilot

Ten-wire cable (7 cm)

• DF13 ten-position to servo cable connects the PWM receiver to the encoder

Connecting the PPM Encoder to your Receiver

• Connect the ten-wire cable to the encoder’s ten-position port as shown.
  

• Now connect each servo wire to your RC receiver. 
• Connect the red wire to power, the black wire to ground, and the white wires to channels one through eight as shown in the image

Connecting the PPM Encoder to your Autopilot

• Connect the three-wire cable to the encoder’s three-position port

• Now you will need to connect the PPM wire to your autopilot board.  Images are shown on how to connect it to Pixhawk, PX4 and Ardupilot boards.

• Connect a PPM jumper (included with APM) to signal pins 2 and 3. Connect three-wire cable to ground, power, and signal pins 1.

PPM Encoder LED

• When powered, the LED indicates the status of the radio signal as shown in the image below.
  

Configuration and Failsafe

• No configuration is necessary to use the PPM encoder out of the box, just connect and power to translate PWM into PPM over one wire. 
• For information on reloading firmware onto the encoder, visit the APM Wiki page here.

• Failsafes can protect your vehicle from loss of radio signal. 
  
• To learn more about configuring failsafes with your PPM encoder, visit the APM Wiki page here