SKU: DRFC-1829
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Generic Pixhawk PPM Encoder Module

₹689.00 (Inclusive of all taxes)
Out of Stock

The Pixhawk PPM Encoder Module converts up to 8 standard PWM receiver signals into a single PPM stream, enabling compatibility with Pixhawk, APM, and other PPM-only flight controllers for simplified wiring and signal consolidation.

Features

  • Converts 8 PWM inputs into a single PPM output signal.
  • Enables PWM receivers to interface with PPM-only flight controllers like Pixhawk and APM.
  • Includes configurable power isolation Jumper (JP1) to prevent regulator damage.
  • Compact form factor with integrated input and output wiring harnesses.
  • Pre-configured firmware supports standard 8-channel operation.

Out of stock

Description

This PPM encoder module serves as a critical interface bridge in UAV control systems. It is designed to accept standard PWM signals from common RC receivers and multiplex them into a single PPM stream, which is the required input format for many professional-grade autopilots including the Pixhawk series and APM boards. This consolidation reduces wiring complexity from multiple signal lines down to one primary data line, plus power and ground.

The module features a critical safety component in the JP1 Jumper, which manages power source isolation. When the receiver and servos are powered separately from the autopilot, removing this Jumper is mandatory to prevent back-feeding and potential damage to the flight controller’s onboard 5V regulator. The unit arrives pre-flashed with firmware for 8-channel operation, though it remains reprogrammable via an AVR ISP programmer for users needing to invert the PPM signal or adjust fail-safe values.

Key Features

  • 8-channel PWM-to-PPM signal conversion for streamlined flight control integration.
  • Integrated power isolation Jumper (JP1) protects sensitive autopilot voltage regulators.
  • Compact and lightweight PCB design minimizes onboard footprint and weight penalty.
  • Pre-soldered JR-style connectors on included cables for plug-and-play installation.
  • AVR microcontroller-based design allows for advanced firmware customization if needed.
  • Robust construction suitable for integration in both multirotor and fixed-wing UAV builds.

Applications

  • Enabling standard PWM RC receivers to work with Pixhawk or APM-based drone autopilots.
  • Simplifying wiring harnesses in custom fixed-wing UAV or VTOL builds requiring PPM input.
  • Retrofitting older ground control systems with modern PPM-compatible flight controllers.
  • Educational and DIY drone projects where signal protocol conversion is necessary.

Technical Specifications

Item TypeModule
Input Channels8 PWM
Output Channel1 PPM
Cable LengthApprox. 90 mm
Module Dimensions (Variant 1)28 x 19 x 5 mm
Module Dimensions (Variant 2)23 x 16 x 7 mm
Weight (with wires)12 g
Shipping Weight0.015 kg
Shipping Dimensions6 x 5 x 2 cm

Frequently Asked Questions

What is the primary function of this PPM Encoder Module?

This module converts up to eight individual Pulse Width Modulation (PWM) signals from a standard RC receiver into a single Pulse Position Modulation (PPM) stream. This allows flight controllers like the Pixhawk or APM, which typically only accept PPM input, to work with common PWM-based receivers, consolidating multiple control channels into one simplified data connection.

When should I remove the JP1 Jumper on the module?

You must remove the JP1 Jumper if your receiver or servos are powered by a separate BEC or power source that is not the flight controller's own 5V output. Leaving the Jumper in place when using an external power source can cause a back-feed condition, potentially damaging the autopilot's internal 5V voltage regulator. If all power is sourced from the flight controller, keep the Jumper installed.

Can I change the number of channels or modify the PPM signal?

The module ships pre-configured for 8-channel operation. To modify parameters like channel count, PPM signal inversion, or fail-safe values, you will need an external AVR ISP programmer (like a USBasp) to reflash the onboard microcontroller. The standard firmware is optimized for general use with Pixhawk and similar autopilots.

Package Includes

  • 1 x Pixhawk PPM Encoder Module
  • 1 x JR Plug 10-Pin Input Cable
  • 1 x JR Plug 4-Pin Output Cable

Additional Information

Weight 0.012 kg
Dimensions 2.8 × 2.3 × 0.5 cm