FrSky X-Receiver

How you connect the X-Receiver depends highly on your flight controller.

PixHawk

  1. Buy a RS232 TTL level converter (FrSky FUL-1 or MAX3232CSE).
  2. Buy the FrSky SPC cable or solder the diode directly to the RS232 TTL converter like this.

  3. Make sure you have everything wired up like this (but connect the cable to Serial 4/5 instead): Wiring for X-Type Receivers

    PX4

    To start the frsky_telemetry driver on the Pixhawk SERIAL5 on startup, create a file called /etc/extras.txt on your SD card with the following contents:

    # Start FrSky telemetry on SERIAL4 (ttyS6, designated "SERIAL4/5" on the case)
frsky_telemetry start -d /dev/ttyS6

    If you have an older FMUv1 board, change /dev/ttyS6 to /dev/ttyS2

    Ardupilot

    TODO

PixRacer

TODO

Cleanflight

DJI

Taulabs