Pixhawk PPM Encoder Module

If you're dreaming of becoming an Electronic Geek and building your own drone, the PPM Encoder is a must-have tool. Pulse Position Modulation (PPM) encoding is a method where encoding is done by positioning the pulses. This encoder allows you to encode up to 8 PWM (Pulse Width Modulated) signals into a single PPM (Pulse Position Modulation) signal.

Flight controllers like the Pixhawk autopilot often only support PPM-compatible receivers. If you have a PWM receiver, you'll need a PPM encoder like this one for it to work with a PPM-only FC.

This PPM encoder combines multiple PWM inputs into a single PPM output, allowing you to connect up to 8 channels from a standard RC receiver to a single wire PPM input for your flight controller (e.g., Pixhawk or APM). Using PPM reduces all channels to a single wire, excluding ground and power lines.

  Important Note on Powering The Encoder:  

• JP1 jumper provides flexibility in powering the receiver, servos, and PPM Encoder. If the power for these components comes from the autopilot board, JP1 should be in place (shorted).
• If the receiver or any servos are directly connected to a separate/additional power source and the autopilot€™s +5V is also connected to the PPM Encoder via the PPM connector, you must remove jumper JP1 to isolate the autopilot power supply from the receiver power supply. Failure to do so may damage the autopilot€™s +5V switching regulator.

  Features:  

• Supports 8 input channels
• Outputs: PPM SUM - 1 / MUX - 1

  Specifications:  

• Input Channel: 8 PWM channels
• Output Channel: 1 PPM channel
• PWM Signal Cable Length: 60mm
• PPM Signal Cable Length: 90mm
• Dimensions: 31.60 x 23 x 8mm
• Weight: 10g

  Package Includes:  

• 1 x Pixhawk PPM Encoder Module
• 1 x JR plug 10P input end of the cable
• 1 x JR plug 4P output end of the cable

Note: The firmware is pre-configured to read 8 channels. If you wish to change the settings to invert the PPM signal or change the fail-safe pre-defined values, you'll need an AVR ISP programmer to reprogram it.