PX4 User Guide
  • Introduction
  • Getting Started
    • Basic Concepts
    • Vehicles/Frames
    • Flight Controllers
    • Sensors
    • Radio Systems
    • Flight Modes
    • Vehicle Status Notifications
      • LED Meanings
      • Tune/Sound Meanings
      • Preflight Checks
    • Payloads & Cameras
    • Flight Reporting
  • Basic Assembly
    • Mounting the Flight Controller
    • Mounting the GPS/Compass
    • Vibration Isolation
    • Cable Wiring
    • CUAV Pixhawk V6X Wiring QuickStart
    • CUAV V5+ Wiring Quickstart
    • CUAV V5 nano Wiring Quickstart
    • Holybro Pixhawk 6C Wiring Quickstart
    • Holybro Pixhawk 6X Wiring Quickstart
    • Holybro Pixhawk 5X Wiring Quickstart
    • Holybro Pixhawk 4 Wiring Quickstart - Discontinued
    • Holybro Pixhawk 4 Mini Wiring Quickstart - Discontinued
    • Holybro Durandal Wiring Quickstart
    • Holybro Pix32 v5 Wiring Quickstart
    • Cube Wiring Quickstart
    • Pixracer Wiring Quickstart
    • mRo (3DR) Pixhawk Wiring Quickstart
  • Standard Configuration
    • Firmware
    • Airframe
    • Sensor Orientation
    • Compass
    • Gyroscope
    • Accelerometer
    • Airspeed
    • Level Horizon Calibration
    • Radio Setup
    • Joystick Setup
    • Flight Modes
    • Battery
    • Safety
      • Failsafe Simulation
    • ESC Calibration
    • Actuators
    • Autotune
  • Vehicle Types & Setup
    • Multicopters
      • Multicopter Config/Tuning
        • MC Filter/Control Latency Tuning
        • MC PID Tuning (Manual/Basic)
        • MC PID Tuning Guide (Manual/Advanced)
        • MC Setpoint Tuning (Trajectory Generator)
          • MC Jerk-limited Type Trajectory
        • Multicopter Racer Setup
      • X500 v2 (Pixhawk 6C)
      • X500 v2 (Pixhawk 5X)
      • X500 (Pixhawk 4)
      • S500 V2 (Pixhawk 4)
      • DJI F450 (CUAV v5+)
      • DJI F450 (CUAV v5 nano)
      • QAV250 (Pixhawk4 Mini) - Discontinued
      • DJI F450 + RTK (Pixhawk 3 Pro)
      • QAV250 (Pixhawk Mini)
      • QAV-R 5" Racer (Pixracer)
      • Omnicopter
    • Planes
      • Fixed Wing Config/Tuning
        • Fixedwing PID Tuning Guide
        • Fixedwing Advanced Tuning Guide
        • Fixedwing Trimming Guide
      • Reptile Dragon 2 (ARK6X)
      • Turbo Timber Evolution (Pixhawk 4 Mini)
      • Wing Wing Z84 (Pixracer)
    • VTOL
      • VTOL Config/Tuning
        • QuadPlane Configuration
        • Back-transition Tuning
        • VTOL w/o Airspeed Sensor
        • VTOL Weather Vane
      • Standard VTOL
        • FunCub QuadPlane (Pixhawk)
        • Ranger QuadPlane (Pixhawk)
        • Falcon Vertigo QuadPlane (Dropix)
      • Tailsitter VTOL
        • Build: TBS Caipiroshka Tailsitter Build (Pixracer)
      • Tiltrotor VTOL
        • Build: Convergence Tiltrotor (Pixfalcon)
    • Airships (experimental)
    • Autogyros (experimental)
      • ThunderFly Auto-G2 (Holybro pix32)
    • Balloons (experimental)
    • Helicopter (experimental)
      • Helicopter Config/Tuning
    • Rovers (experimental)
      • Traxxas Stampede
    • Submarines (experimental)
      • BlueROV2
    • Airframes Reference
  • Flying
    • First Flight Guidelines
    • Flying 101
    • Missions
      • Package Delivery Mission
    • GeoFence
    • Safety Point Planning
    • Flight Modes
      • Position Mode (MC)
      • Altitude Mode (MC)
      • Manual/Stabilized Mode (MC)
      • Acro Mode (MC)
      • Orbit Mode (MC)
      • Position Mode (FW)
      • Altitude Mode (FW)
      • Stabilized Mode (FW)
      • Acro Mode (FW)
      • Manual Mode (FW)
      • Takeoff Mode
      • Land Mode
      • Return Mode
      • Hold Mode
      • Mission Mode
      • Follow Me Mode
      • Offboard Mode
    • Terrain Following/Holding
  • Flight Log Analysis
    • Log Analysis using Flight Review
    • Log Analysis using PlotJuggler
  • Advanced Configuration
    • Finding/Updating Parameters
    • Full Parameter Reference
    • ECL/EKF Overview & Tuning
    • Flight Termination Configuration
    • Bootloader Flashing onto Betaflight Systems
    • Land Detector Configuration
    • Prearm/Arm/Disarm Configuration
    • IMU Factory Calibration
    • Sensor Thermal Compensation
    • Compass Power Compensation
    • Advanced Controller Orientation
    • Static Pressure Buildup
    • Serial Port Configuration
    • MAVLink Telemetry (OSD/GCS)
    • PX4 Ethernet Setup
    • Bootloader Update
  • Hardware (Drones&Parts)
    • Complete Vehicles
      • ModalAI Starling
      • PX4 Vision Kit
      • MindRacer BNF & RTF
        • MindRacer 210
        • NanoMind 110
      • Holybro Kopis 2
      • Bitcraze Crazyflie 2.1
    • Flight Controllers (Autopilots)
      • Pixhawk Series
        • Silicon Errata
      • Pixhawk Standard Autopilots
        • CUAV Pixhawk V6X (FMUv6X)
        • Holybro Pixhawk 6X (FMUv6X)
        • Holybro Pixhawk 6C (FMUv6C)
        • Holybro Pixhawk 6C Mini(FMUv6C)
        • Holybro Pix32 v6 (FMUv6C)
        • Holybro Pixhawk 5X (FMUv5X)
        • Holybro Pixhawk 4 (FMUv5) - Discontinued
        • Holybro Pixhawk 4 Mini (FMUv5) - Discontinued
        • Drotek Pixhawk 3 Pro (FMUv4pro)
        • mRo Pixracer (FMUv4)
        • Hex Cube Black (FMUv3)
        • mRo Pixhawk (FMUv3)
        • Holybro Pixhawk Mini (FMUv3) - Discontinued
      • Manufacturer-Supported Autopilots
        • AirMind MindPX
        • AirMind MindRacer
        • ARK Electronics ARKV6X
        • CUAV X7
        • CUAV Nora
        • CUAV V5+ (FMUv5)
        • CUAV V5 nano (FMUv5)
        • CUAV Pixhack v3 (FMUv3)
        • CubePilot Cube Orange+ (CubePilot)
        • CubePilot Cube Orange (CubePilot)
        • CubePilot Cube Yellow (CubePilot)
        • Holybro Kakute H7v2
        • Holybro Kakute H7mini
        • Holybro Kakute H7
        • Holybro Durandal
        • Holybro Pix32 v5
        • ModalAI Flight Core v1
        • ModalAI VOXL Flight
        • ModalAI VOXL 2
        • mRobotics-X2.1 (FMUv2)
        • mRo Control Zero F7)
        • NXP RDDRONE-FMUK66 FMU
        • Sky-Drones AIRLink
        • SPRacing SPRacingH7EXTREME
        • ThePeach FCC-K1
        • ThePeach FCC-R1
      • Experimental Autopilots
        • BeagleBone Blue
        • Raspberry Pi 2/3 Navio2
        • Raspberry Pi 2/3/4 PilotPi
          • PilotPi with Raspberry Pi OS
          • PilotPi with Ubuntu Server
      • Discontinued Autopilots/Vehicles
        • Drotek Dropix (FMUv2)
        • Omnibus F4 SD
        • BetaFPV Beta75X 2S Brushless Whoop
        • Bitcraze Crazyflie 2.0
        • Aerotenna OcPoC-Zynq Mini
        • CUAV v5
        • Holybro Kakute F7 (Discontinued)
        • Holybro Pixfalcon
        • Holybro pix32 (FMUv2)
        • mRo AUAV-X2
        • 3DR Pixhawk 1
        • Snapdragon Flight
        • Intel® Aero RTF Drone (Discontinued)
      • Pixhawk Autopilot Bus (PAB) & Carriers
        • ARK Electronics Pixhawk Autopilot Bus Carrier
    • Flight Controller Peripherals
      • ADSB/FLARM (Traffic Avoidance)
      • Air Traffic Avoidance: ADSB/FLARM
      • Air Traffic Avoidance: UTM
      • Airspeed Sensors
        • TFSlot Airspeed Sensor
      • Barometers
      • Camera
      • Distance Sensors (Rangefinders)
        • Lightware SFxx Lidar
        • Ainstein US-D1 Standard Radar Altimeter
        • LeddarOne Lidar
        • Benewake TFmini Lidar
        • Lidar-Lite
        • TeraRanger
        • Lanbao PSK-CM8JL65-CC5
        • Avionics Anonymous Laser Altimeter UAVCAN Interface
      • ESCs & Motors
        • PWM ESCs and Servos
        • DShot ESCs
        • OneShot ESCs and Servos
        • DroneCAN ESCs
          • Zubax Telega
          • PX4 Sapog ESC Firmware
            • Holybro Kotleta
            • Zubax Orel
        • VESC
      • TBS Crossfire (CRSF) Telemetry
      • FrSky Telemetry
      • Gimbal (Mount) Configuration
      • GPS/Compass
        • ARK GPS
        • Holybro DroneCAN M8N GPS
        • LOCOSYS Hawk A1 GNSS
        • Hex Here2
        • Holybro M8N & M9N GPS
        • Sky-Drones SmartAP GPS
      • Grippers
        • Servo Gripper
      • Optical Flow
        • ARK Flow
        • PMW3901
        • PX4FLOW (Deprecated)
      • Precision Landing
      • Parachute
      • Power Modules/PDB
        • CUAV HV pm
        • CUAV CAN PMU
        • Holybro PM02
        • Holybro PM07
        • Holybro PM06 V2
        • Holybro PM02D (digital)
        • Holybro PM03D (digital)
        • Pomegranate Systems Power Module
        • Sky-Drones SmartAP PDB
      • Satellite Coms (Iridium/RockBlock)
      • Telemetry Radios
        • SiK Radio
          • RFD900 (SiK) Telemetry Radio
          • HolyBro (SIK) Telemetry Radio
        • Telemetry Wifi
          • ESP8266 WiFi Module
          • ESP32 WiFi Module
          • 3DR Telemetry Wifi (Discontinued)
        • Microhard Serial Telemetry Radio
          • ARK Electron Microhard Serial Telemetry Radio
          • Holybro Microhard P900 Telemetry Radio
        • CUAV P8 Telemetry Radio
        • HolyBro XBP9X - Discontinued
      • RTK GPS
        • ARK RTK GPS
        • RTK GPS Heading with Dual u-blox F9P
        • CUAV C-RTK
        • CUAV C-RTK2 PPK/RTK GNSS
        • CUAV C-RTK 9Ps
        • Femtones MINI2 Receiver
        • Freefly RTK GPS
        • Holybro H-RTK-F9P
        • Holybro H-RTK-M8P
        • Holybro H-RTK Unicore UM982 GPS
        • Locosys Hawk R1
        • Locosys Hawk R2
        • Septentrio AsteRx-RIB
        • Septentrio mosaic-go
        • Trimble MB-Two
        • CubePilot Here+ (Discontined)
      • Remote ID
      • Smart Batteries
        • Rotoye Batmon Battery Smartification Kit
      • Tachometers (Revolution Counters)
        • ThunderFly TFRPM01 Tachometer Sensor
      • I2C Peripherals
        • I2C bus accelerators
        • TFI2CADT01 I2C address translator
      • CAN Peripherals
      • DroneCAN Peripherals
        • PX4 DroneCAN Firmware
        • ARK CANnode
    • Companion Computers
      • Pixhawk + Companion Setup
        • RasPi Pixhawk Companion
      • Companion Computer Peripherals
      • Holybro Pixhawk RPI CM4 Baseboard
      • Auterion Skynode
      • Computer Vision
        • Obstacle Avoidance
        • Safe Landing
        • Collision Prevention
        • Path Planning Interface
        • Motion Capture (MoCap)
        • Visual Inertial Odometry (VIO)
          • Realsense T265 Tracking Camera (VIO)
      • Video Streaming
  • Development
    • Getting Started
      • Recommended Hardware/Setup
      • Toolchain Installation
        • MacOS Setup
        • Ubuntu Setup
        • Windows Setup
        • Visual Studio Code IDE
        • Other/Generic Tools
      • Building the Code
      • Writing your First Application
      • Application/Module Template
    • Concepts
      • PX4 Architecture
      • PX4 Flight Stack Architecture
        • Controller Diagrams
      • Events Interface
      • Flight Modes
      • Flight Tasks
      • Control Allocation
      • PWM limit state machine
      • System Startup
      • SD Card Layout
    • Simulation
      • jMAVSim Simulation
        • Multi-Vehicle Sim with JMAVSim
      • Gazebo Simulation
        • Vehicles
        • Multi-Vehicle Sim
      • Gazebo Classic Simulation
        • Vehicles
        • Worlds
        • Multi-Vehicle Sim
      • FlightGear Simulation
        • FlightGear Vehicles
        • Multi-Vehicle Sim with FlightGear
      • JSBSim Simulation
      • AirSim Simulation
      • Multi-Vehicle Simulation
      • Simulate Failsafes
      • HITL Simulation
      • Simulation-In-Hardware
    • Hardware
      • Flight Controller Reference Design
      • Manufacturer’s Board Support Guide
      • Flight Controller Porting Guide
        • PX4 Board Configuration (kconfig)
        • NuttX Board Porting Guide
      • Serial Port Mapping
      • Airframes
        • Adding a New Airframe
      • Device Drivers
      • Telemetry Radio
        • SiK Radio
      • Sensor and Actuator I/O
        • DroneCAN
        • I2C Bus
        • UART/Serial Ports
          • Port-Configurable Serial Drivers
      • RTK GPS (Integration)
    • Middleware
      • uORB Messaging
      • uORB Graph
      • uORB Message Reference
        • ActionRequest
        • ActuatorArmed
        • ActuatorControlsStatus
        • ActuatorMotors
        • ActuatorOutputs
        • ActuatorServos
        • ActuatorServosTrim
        • ActuatorTest
        • AdcReport
        • Airspeed
        • AirspeedValidated
        • AirspeedWind
        • AutotuneAttitudeControlStatus
        • BatteryStatus
        • ButtonEvent
        • CameraCapture
        • CameraStatus
        • CameraTrigger
        • CellularStatus
        • CollisionConstraints
        • CollisionReport
        • ControlAllocatorStatus
        • Cpuload
        • DebugArray
        • DebugKeyValue
        • DebugValue
        • DebugVect
        • DifferentialPressure
        • DistanceSensor
        • Ekf2Timestamps
        • EscReport
        • EscStatus
        • EstimatorAidSource1d
        • EstimatorAidSource2d
        • EstimatorAidSource3d
        • EstimatorBias
        • EstimatorBias3d
        • EstimatorEventFlags
        • EstimatorGpsStatus
        • EstimatorInnovations
        • EstimatorSelectorStatus
        • EstimatorSensorBias
        • EstimatorStates
        • EstimatorStatus
        • EstimatorStatusFlags
        • Event
        • FailsafeFlags
        • FailureDetectorStatus
        • FollowTarget
        • FollowTargetEstimator
        • FollowTargetStatus
        • GeneratorStatus
        • GeofenceResult
        • GimbalControls
        • GimbalDeviceAttitudeStatus
        • GimbalDeviceInformation
        • GimbalDeviceSetAttitude
        • GimbalManagerInformation
        • GimbalManagerSetAttitude
        • GimbalManagerSetManualControl
        • GimbalManagerStatus
        • GpioConfig
        • GpioIn
        • GpioOut
        • GpioRequest
        • GpsDump
        • GpsInjectData
        • Gripper
        • HealthReport
        • HeaterStatus
        • HomePosition
        • HoverThrustEstimate
        • InputRc
        • InternalCombustionEngineStatus
        • IridiumsbdStatus
        • IrlockReport
        • LandingGear
        • LandingGearWheel
        • LandingTargetInnovations
        • LandingTargetPose
        • LaunchDetectionStatus
        • LedControl
        • LogMessage
        • LoggerStatus
        • MagWorkerData
        • MagnetometerBiasEstimate
        • ManualControlSetpoint
        • ManualControlSwitches
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        • MavlinkTunnel
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        • MissionResult
        • ModeCompleted
        • MountOrientation
        • NavigatorMissionItem
        • NormalizedUnsignedSetpoint
        • NpfgStatus
        • ObstacleDistance
        • OffboardControlMode
        • OnboardComputerStatus
        • OrbTest
        • OrbTestLarge
        • OrbTestMedium
        • OrbitStatus
        • ParameterUpdate
        • Ping
        • PositionControllerLandingStatus
        • PositionControllerStatus
        • PositionSetpoint
        • PositionSetpointTriplet
        • PowerButtonState
        • PowerMonitor
        • PpsCapture
        • PwmInput
        • Px4ioStatus
        • QshellReq
        • QshellRetval
        • RadioStatus
        • RateCtrlStatus
        • RcChannels
        • RcParameterMap
        • Rpm
        • RtlTimeEstimate
        • SatelliteInfo
        • SensorAccel
        • SensorAccelFifo
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        • SensorGyroFft
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On this page
  • Radio System Setup
  • Wiring
  • PX4 Configuration
  • Firmware Configuration/Build
  • Firmware Upload
  • Parameter Configuration
  • Radio Setup
  • RC Controllers
  • TBS Radio Systems
  • ExpressLRS Radio Systems
  • Telemetry Messages
  • See Also
  1. Hardware (Drones&Parts)
  2. Flight Controller Peripherals

TBS Crossfire (CRSF) Telemetry

PreviousVESCNextFrSky Telemetry

Last updated 1 year ago

CRSF is a telemetry protocol that can be used for both and to get telemetry information from the vehicle/flight controller on a compatible RC transmitter.

The protocol was developed by for their Crossfire RC system, but is also used by RC systems. It is a bidirectional protocol that only needs a single UART for communicating both RC and telemetry.

The , and include: flight mode, battery level, GPS data RC signal strength, speed, altitude, and so on.

:::note If you don't need telemetry you can connect a TBS Crossfire to the RCIN port and configure the receiver to use S.BUS. Crossfire radio systems can also be used as . :::

:::warning PX4 does not include the CRSF protocol support by default. The explain how to build and upload custom PX4 firmware that includes the required modules. :::

Radio System Setup

To use CRSF telemetry you will need a or that includes an with a transmitter, and a receiver (from the same vendor).

:::note An RC radio system historically consisted of a ground-based controller that transmitted to an on-vehicle receiver. Even though many radio systems are now bidirectional, the ground module may still be referred to as the transmitter, and the air unit may be called a receiver. :::

Generally you will need to separately setup and configure the transmitter and receiver, and then bind them together.

A transmitter might come as an integral part of an , or it might be a separate module that you plug into a controller. If it is a separate module then you may also need to update the module software on the transmitter to firmware that supports CRSF, such as OpenTX or EdgeTx. In both cases you will need to configure the transmitter to enable CRSF.

The receiver must be to a spare port (UART) on the Flight Controller. Then you can bind the transmitter and receiver together.

Instructions for the steps above are covered in

Wiring

The TX and RX on your selected Flight Controller UART should be connected to separate channels on the receiver. The signal is usually uninverted, and can be directly connected (no additional inverter logic is required in the cable). You should check the manual for your specific receiver though!

TBS Receiver Wiring

For TBS receivers you wire the FC UART and receiver as shown (this assumes the TBS Nano RX).

FC UART
Nano RX

TX

Ch2

RX

Ch1

ExpressLRS Receiver Wiring

FC UART
ExpressLRS

TX

RX

RX

TX

VCC

VCC

GND

GND

PX4 Configuration

Firmware Configuration/Build

The steps are:

  1. As part of this process you will have used git to fetch source code into the PX4-Autopilot directory.

  2. Open a terminal and cd into the PX4-Autopilot directory.

    cd PX4-Autopilot
  3. make ark_fmu-v6x_default boardconfig
  4. In the PX4 board config tool:

    • Disable the default rc_input module

      1. Navigate to the drivers submenu, then scroll down to highlight rc_input.

      2. Use the enter key to remove the * from rc_input checkbox.

    • Enable the crsf_rc module

      1. Scroll to highlight the RC submenu, then press enter to open it.

      2. Scroll to highlight crsf_rc and press enter to enable it.

    Save and exit the PX4 board config tool.

  5. make ark_fmu-v6x_default

This will build your custom firmware, which must now be uploaded to your flight controller.

Firmware Upload

To upload the custom firmware, first connect your flight controller to the development computer via USB.

You can upload firmware as part of the build process using the upload options:

make ark_fmu-v6x_default upload

Parameter Configuration

There is no need to set the baud rate for the port, as this is configured by the driver.

Radio Setup

RC Controllers

A transmitter might come as an integral part of an RC controller, or it might be a separate module that you plug into a controller.

RC Controllers that support TBS Crossfire and ExpressLRS TX modules:

TBS Radio Systems

Transmitter modules:

Receivers:

ExpressLRS Radio Systems

Transmitter modules:

  • TBD

Receivers:

Telemetry Messages

Datapoint
Description
Data source

1RSS

Uplink - received signal strength antenna 1 (RSSI)

TBS CROSSFIRE RX

2RSS

Uplink - received signal strength antenna 2 (RSSI)

TBS CROSSFIRE RX

RQly

Uplink - link quality (valid packets)

TBS CROSSFIRE RX

RSNR

Uplink - signal-to-noise ratio

TBS CROSSFIRE RX

RFMD

Uplink - update rate, 0 = 4Hz, 1 = 50Hz, 2 = 150Hz

TBS CROSSFIRE RX

TPWR

Uplink - transmitting power

TBS CROSSFIRE TX

TRSS

Downlink - signal strength antenna

TBS CROSSFIRE TX

TQly

Downlink - link quality (valid packets)

TBS CROSSFIRE TX

TSNR

Downlink - signal-to-noise ratio

TBS CROSSFIRE TX

ANT

Sensor for debugging only

TBS CROSSFIRE TX

GPS

GPS Coordinates

TBS GPS / FC

Alt

GPS Altitudes

TBS GPS / FC

Sats

GPS Satellites acquired

TBS GPS / FC

Hdg

Magnetic orientation

TBS GPS / FC

RXBt

Battery voltage

TBS GPS / FC/ CROSSFIRE RX/ CORE

Curr

Current draw

TBS GPS / FC// CORE

Capa

Current consumption

TBS GPS / FC/ CORE

Ptch

FC Pitch angle

FC

Roll

FC Roll angle

FC

Yaw

FC Yaw angle

FC

FM

Flight mode

FC

VSPD

Barometer

FC

See Also

For ExpressLRS receivers wire to the flight controller UART as shown below (wiring is covered ):

CRSF telemetry support is not included in any PX4 firmware by default. To use this feature you must build and upload custom firmware that includes and removes .

for building PX4.

Launch the for your make target using the boardconfig option (here the target is the flight controller):

with your changes (again assuming you are using ARKV6X):

Alternatively you can use QGroundControl to install the firmware, as described in .

named to the port that is connected to the CRSF receiver (such as TELEM1).

This to use the CRSF protocol. Note that some serial ports may already have a or that you will have to un-map before you can assign the port to CRSF. For example, if you want to use TELEM1 or TELEM2 you first need to modify or to stop setting those ports.

explains how to map your RC controller's attitude control sticks (roll, pitch, yaw, throttle) to channels, and to calibrate the minimum, maximum, trim and reverse settings for all other transmitter controls/RC channels.

has an external module bay that can be used with TBS or ExpressLRS transmitter modules that are "JR module bay" compatible. You will need to install OpenTX software, which supports CRSF, and enable the external module and CRSF.

has an internal ExpressLRS transmitter module. It also has an external module bay that can be used with TBS or ExpressLRS transmitter modules that are "JR module bay" compatible. It runs both OpenTX and EdgeTx software, either of which can support CRSF.

. A few options are listed below.

- designed for small quadcopters.

Express LRS provide Radio System guidance in the page. A few tested options are listed below.

.

:::note This is used in the . See sections and . :::

The supported telemetry messages and their source are listed below (this table is reproduced from the ).

in detail here
Setup a development environment
Build the PX4 source code
Radio Control Setup
FrSky Taranis X9D Plus
Radiomaster TX16S
TBS Crossfire Radio Systems are listed here
TBS CROSSFIRE TX - LONG RANGE R/C TRANSMITTER
TBS Crossfire Nano RX
Hardware Selection
ExpressLRS Matek Diversity RX
TBS Crossfire Manual: "Available sensors with OpenTX"
TBS Crossfire Manual
ExpressLRS Documentation
FrSky Telemetry
Radio Control Setup
Radio Control Systems
RC control
Team BlackSheep
ExpressLRS (ELRS)
Telemetry Radios
TBS Crossfire Manual
Express LRS: QuickStart
supported telemetry messages are listed here
instructions below
TBS Crossfire radio system
ExpressLRS radio system
RC controller
RC controller
wired
ARK Electronics ARKV6X
Set the parameter
configures the serial port
Reptile Dragon 2 Build Log
PX4 board config tool (menuconfig)
crsf-rc
rc_input
Firmware > Installing PX4 master, beta, or custom firmware
default MAVLink serial port mapping
default serial port mapping
ELRS Rx
Radio Setup
RC_CRSF_PRT_CFG
MAV_0_CONFIG
MAV_1_CONFIG