MAVLink Bridge Source

R2026b

Read MAVLink data from the Pixhawk board

Since R2022a

• 

MAVLink Bridge Source block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
UAV Toolbox Support Package for PX4 Autopilots / PX4 Utility Blocks / MAVLink Bridge Blocks

Description

Add-On Required: This feature requires the UAV Toolbox Support Package for PX4 Autopilots add-on.

The MAVLink Bridge Source block reads MAVLink data stream from the Pixhawk^® board connected to the serial port and routes it to the Simulink^® plant model and the configured UDP/TCP objects. This block allows you to configure Serial, UDP, and TCP connections.

To access the block, open the block library by entering the following command in the MATLAB^® Command window.

px4MAVLinkBridgelib

The MAVLink Bridge Source and MAVLink Bridge Sink blocks provide a way to route MAVLink data stream from Pixhawk hardware to the mission planning software QGroundControl(QGC), On-board computer hardware, Simulink Plant, and vice versa in HITL workflow. For more information, see MAVLink Connectivity for QGC, On-board Computer and Simulink Plant.

Ports

Output

Data — MAVLink data stream

vector

This port outputs the MAVLink data stream.

Data Types: uint8

Length — Length of the data stream

scalar

This port outputs the length of the data stream for the current time setup.

Data Types: uint16

Parameters

Serial Port — Port for connecting the Pixhawk board

Select a port (default) | COM1 | COM3 | Specify manually

Select a serial port to connect to the Pixhawk board. If the required ports are not available in the list, select Specify manually and enter the serial port in the Serial Port (specify manually) field.

Max Data Length — Maximum output data stream length

1024 (default) | any non-negative value

Enter the maximum output data stream length.

Destination Ports — Port for enabling data routing

'UDP','127.0.0.1','14550' (default)

Click Add to add the destination UDP/TCP connections for data routing. The existing connections ('UDP','127.0.0.1','14550') are used for connecting to QGC.

Note

The MAVLink bridge block utilizes the following local port settings:

• Local Port for Ground Control Stations: 14570

• Local Port for Onboard Connection: 14580

Sample time — Interval between outputs

0.01 (default) | any nonnegative integer that is a multiple of 0,001 | -1

Specify the time interval at which the block reads values from the serial connections and routes it to the added UDP/TCP connections.

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"px4MAVLinkBridgelib/MAVLink Bridge Sink"

Example: add_block("px4MAVLinkBridgelib/MAVLink Bridge Sink","myModel/myBlock",MakeNameUnique="on")

Version History

Introduced in R2022a