This section describes how to configure Telemetry.

Hardware Setup

You can use Telemetry 1 or 2 of Pixhawk for connection with XBLink via COM1 (Default), COM2 or COM3 port.

More information for pinout of COM Port, please click to Pinout - Interface

Software Setup


1. Telemetry Setting

a. Telemetry Host port

TCP telemetry server port, Ground Control Station can connect to this port via TCP to get telemetry data. Default is 5760 (or 5761, please see on XBStationPilotApp)

b. Telemetry stream protocol

Telemetry data is relayed through internet in 2 connections method:

  • UDP to archive minimize latency (possible packet loss, suitable for Joystick mode)

  • TCP method to achieve high reliability (default)

2. Serial Setting

a. Serial Port

Port allows you to choose serial port on companion computer

The companion computer will show all available port (ttyS0, ttyUSB0, ttyUSB1…). You have to choose exactly serial port. If you don’t know name port, you can try them one by one.

Choose option is ttyS0 if you connect to COM1 ( ttyAMA4 -> COM2 or ttyAMA5 -> COM3)

b. Serial Baudrate

Baudrate allows you to choose serial baudrate on companion computer

The baudrate on companion computer have to same the baudrate (telemetry 2) on Pixhawk

  • With PX4: SER_TEL2_BAUD (Default 921600), you should change 57600 for stable and save data.

  • With ArduPilot : SERIAL2_BAUD (Default 57, it means 57600), SERIAL2_PROTOCOL: 2 (MAVLink 2)

If you have problem with Telemetry 2 port, you can use Telemetry 1 Port

(Default baud rate Telemetry 1 is 57600 and SERIAL1_PROTOCOL = 2)


Mission Planner

  1. Open Mission Planner, at the top-right, choose TCP type and Connect.

  1. Host name/ip: (default)

  1. Remote port: 5760 (default) or 5761 (remember it must be same Telemetry Host Port in PilotApp)


  1. Open QGroundControl -> Comm Links -> choose TCP type

  2. Enter Host name/ip: (default)

  3. Remote port: 5760 or 5761 (remember it must be same Telemetry Host Port in PilotApp)

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