Arun Mathamkode

Last seen: 1 day ago | Active since 2017

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Adding MAVLINK messages for an external groundstation to use in telemetry (RFD-900)
You can consider using the DEBUG MAVLink message and DebugValue uORB message. The values written to DebugValue uORB message shou...

1 day ago | 0

Answered
Accessing Pixhawk 6x parameters when building firmware for SRXL2 connection
As I understand from the links to the paramters mentioned, these are all ArduPilot parameters and you might not find them if you...

3 days ago | 0

Answered
Error when buliding PX4 firmware with some deactivated modules
PX4 modules have interdependencies. So if you remove one module you have to remove the other as well. That is why the build is f...

19 days ago | 1

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Answered
UAV Tool Box Radio Control Transmitter maximum channels for use with Pixhawk
RC transmitter block is using the InputRc uORB message to read the RC signals. You can use uORB read block and select inputRC as...

27 days ago | 0

Answered
How can I communicate between a Pixhawk controller and an actuator module using UAVCAN?
Starting in R2024b, you can use the PX4 Actuator Write block in your Simulink model to write motor and servo actuator values ove...

27 days ago | 0

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Answered
How can I integrate my custom reinforcement learning agent with the PX4 Autopilot architecture in Simulink, train it within this setup, and then deploy it onto a real drone?
It won't be easy to get an answer here if you ask the entire project as a question. I will recommend you go through individual d...

1 month ago | 0

Answered
Hello, I own PX4 cube orange+. I can not make motor for drone run with px4 PWM Output block with that PX4 cube orange+. but it works for PX4. I use Matlab 2024a. help please!
Ensure that you are not in HITL mode and also use the latest update of UAV toolbox supportpackage for PX4 Autopilots. In the sc...

2 months ago | 0

Answered
Why Matlab can not find the WSL2?
This issue is fixed in update 24.1.2. Go to Add-ons and see if there any update available for the UAV Toolbox support package fo...

3 months ago | 1

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Answered
Something wrong when I run the project in PX4 Autopilot in Hardware-in-the-Loop (HITL) Simulation with UAV Dynamics in Simulink
Can you try the following command ? [status,errmsg] = license('checkout','Aerospace_Blockset') I guess you have the license b...

3 months ago | 0

Answered
Pixhawk Cube Orange AUX PWM Channels Not Activating When Using PX4 Toolbox (2023b)
There are no specific limiation of 4 uorb topics. It ideally depends on the algorithm you are designing in Simulink and the fla...

4 months ago | 0

Answered
MATLAB getMATFilesFromPixhawk Function Fails to Retrieve SD Card Data from Pixhawk PID Controller Simulation
Based on the error message you are seeing, I don't think this is an issue with permission. The function getMATFilesFromPixhawk u...

4 months ago | 0

Answered
how to deploy Control algorithm and Verify it in gazebo environment
I am glad to see that you used the custom uORB to do the debugging of your controller model. That is a good way. Another optio...

4 months ago | 1

Answered
How to simulate my custom drone in jMAVSim with Matlab PX4 simulink ?
Based on my undertsanding the only difference is, from Simulink the SITL and jMAVSim are launched seperately. I am not sure how...

4 months ago | 1

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Answered
seek demo px4/PX4HITLSimulationFixedWingPlantSimulinkExample
This example ships with the 'UAV Toolbox Support Packge for PX4 Autopilots'. Ensure that you install this support package first....

4 months ago | 0

Answered
The number of elements must be greater than zero
Ensure that you have built the PX4 Host Target using the hardware setup screens without errros. Once the build is successful, in...

4 months ago | 1

Answered
Unable to complete PX4 support packages setup due to unresponsive firmware upload menu in Linux Ubuntu 22.04?
Which hardware you are using? What happens when you remove and reconnect the hardware when the hardware setupscreen becomes unr...

5 months ago | 0

Answered
[SOLVED] UAV Toolbox Support Package can't detect WSL2
This looks like an issue that can be seen in Windows computer where the language is not English. To workaround this issue: Chan...

5 months ago | 1

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Answered
UAV Toolbox Support Package Alternative?
The R2024a release of UAV Toolbox Support Package for PX4 Autopilots now supports PX4 Firmware v1.14

6 months ago | 0

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Answered
The HITL example of UAV toolbox, there was a problem with QGC mission
Are you seeing any errors in the QGC or in NSH shell that why its disarming? without that it is bit difficult to understand what...

6 months ago | 0

Answered
Error when run "Run quadcopter plant in normal simulation" in "Px4DemoHostTargetWithSimulinkPlant" example.
As the error clearly says the base sample time of the model you use is 0 and that cannot be supported in Nuttx. You need to make...

6 months ago | 0

Answered
Use Multiple GPS in PX4 with PX4 supported package?
It is possible to use two GPS over serial connection. Most of the Pixhawk boards will have two GPS ports (GPS1 and GPS2) and it ...

6 months ago | 0

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Answered
How to locate the PX4 files which in wsl2 when I use the UAV ToolBox for PX4?
I believe the issue you might be facing is because of the distribution root folder name. The expected path is '\\wsl.localhost\U...

6 months ago | 0

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Answered
Questions about "UAV Toolbox Support Package for PX4 Autopilots" toolbox.
This means that the sensor modules are not publishing the corresponding uORB message. For example, Accelerometer block reads 's...

9 months ago | 0

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Building Cube Orange Model by Simulink
Other than the Cygwin toolchain and PX4 Firmware sources there are no additional dependencies required to deploy the code from S...

10 months ago | 0

Answered
PX4 HIL with Pixhawk 6x with Monitor and Tune ERROR:Could not connect to target application: XCP internal error: timeout expired, in response to XCP CONNECT command
From the details provided, the serial port mapping you used, PX4 hardware connections, QGC parameters and the configuration sett...

11 months ago | 0

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Answered
PX4 SITL with Simulink based Plant Model
Depends on when the plant and controller start running there can be an offset between controller and plant. And as per the curre...

1 year ago | 0

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Answered
Monitor and Tune PX4 Host Target Flight Controller with Simulink-Based Plant Model: Mismatched TCP Node
As per the documentation you need to run the Plant model first and then run the Controller model in another instance of MATLAB (...

1 year ago | 0

Answered
User-defined PX4 uORB messages
Custom uORB messages are not supported with Connected I/O currently. You can consider using the Monitor and Tune Simulation inst...

1 year ago | 1

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Answered
UAV Toolbox support package for PX4 Autopilots- Host target simulation
The controller and plant are in lock step simulation by default. What this means is that PX4 controller and the plant wait on e...

1 year ago | 0

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Answered
rror copying generated code into Pixhawk firmware directory. Delete the files in the folder C:\PX4\home\Firmware\src\modules\px4_simulink_app manually and try building again.
As the error messages says, Delete the files in the folder C:\PX4\home\Firmware\src\modules\px4_simulink_app manually and try b...

1 year ago | 0