@restore, it looks like PX4 does have a driver for this imu/compass.

https://github.com/modalai/px4-firmware/blob/voxl-dev/src/drivers/imu/invensense/icm20948/ICM20948.cpp

However, it is not clear whether you can read just compass data. Please take a look at this driver.

If you want to use it, you will need to enable building of the driver in the voxl2 board config: https://github.com/modalai/px4-firmware/blob/voxl-dev/boards/modalai/voxl2-slpi/default.px4board : enable DRIVERS_IMU_INVENSENSE_ICM20948=y .

Then, modify /usr/bin/voxl-px4-start to include:

qshell icm20948 start

We have not tested this driver, so we cannot really provide any guidance on using it for your application. However, with the above instructions, you should be able to compile it and run it.

Please make sure that the IMU data from this module does not conflict with the main flight IMU.

Alex

@Moderator Please tell me that without modifications Just Like Vijay Kumar has developed the SWARM of MESH with your Drones, I want to buy VOXL 2 Starling Drones in order to develop the Mesh Networking with 2 drones? How I can do it easily? Is it feasible ? or We can develop that with XBEE 3 ? Please help me in this regard ? If I need to change the driver setting How I can do that in order to implement the SWARM of the drones MESH Networking ?

@Eric-Katzfey
Understood. Thanks
My line of questioning in another topic I posted - " Attempt to reduce drift with the help of stereo camera " is similar. So, I'll close this and take your advice from that.

Thanks again

@Eric-Katzfey
Understood. Thank you.

@tom the full wipe SDK install sorted it out. Thanks

@riteshsharma do the SDK installation with ./install.sh -w option. This will wipe the entire file system including the /data partition which is usually untouched.

@Aaky, I see what you are asking.

What is needed is the python binding to the C function int pipe_server_get_num_clients(int ch) , which is defined here

pympa_create_pub already is set up to return the MPA channel number, so we would just need to use that channel number of checking the number of clients.

I can implement this, but it will need to wait a few days. That is a good feature to have. If you would like to try implementing it yourself, you can add the bindings to :

https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-mpa-tools/-/blob/pympa-experimental/tools/pympa.cpp (add call to pipe_server_get_num_clients) in a similar way how other functions are called. add the actual python wrapper to: https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-mpa-tools/-/blob/pympa-experimental/tools/python/pympa.py then finally, when you call pympa_create_pub, save the pipe id and then pass it to check for clients.

Alex

@Chad-Sweet, @James-Strawson, @tom any updates?

@Chase-Riley Since you're getting no response from lsusb or dmesg I think the best path forward is an RMA: https://www.modalai.com/pages/rma

I found this by running

./voxl-esc-scan.py

or

voxl-esc and selecting detect...or scan I can not remember

@Alex-Kushleyev we needed three outputs and three inputs, so we ended up using an entirely different board (an AVR system) connected to the VOXL2 via ttyHS1 through the expansion board, and that seems to be doing what we need, with the added benefit of the pulldown resistors being built into that control board. There is certainly something odd about the PX4 build on this unit, both in terms of available camera controls and GPS options, which is the next thing we're trying to tackle.

@restore unfotunately I'm under an NDA and can't say much about what we're doing with the Sony hardware, but I will say that their documented processes for the Raspberry Pi 4 also work on the Voxl2, as long as you have the USB3 available. Try not to use the SDK to trigger the camera though; the performance there isn't exactly consistent. The hardwired options (be it through the not-quite-USB port or the phsyical interface on something like an ILX-LR1) are rock solid, but as they're designed to be button-triggered, you'll need a resistor between your control board and some sort of transistor (2N222) and then control the actual interface with the transistor. Otherwise, the trigger input is looking for the output from its own source, which is an indeterminate voltage and will quite likely damage the VOXL. The transistor will take essentially whatever current you give it, so that resistor is also mandatory - 10kOhm works for me with the AVR 440 chip controlling it.

HI @Zarrar
Just for correctness, we are not DJI and have no association with them 🙂

Hi,
I hope you are well. I need help in the selection of DJI VOXL 2 Starling

Hey @user887

I attempted to QDL flash a "golden unit" rb5 but wasn't able to replicate the error you're experiencing. I would remove and reattach the SOM ensuring there isn't a loose connection to the rb5 board, remove any cameras or connectors, and trying a different USB cable in the case of a loose connection between the USB cable and rb5.

Hope these tips help!

@TomP Yes, should be in by end of the year.

@cy208183395 Yes, well then that is your problem. When you try to run it on VOXL 2 and you don't have Docker installed on VOXL 2 then you will see an error like docker: command not found. You have to install Docker on VOXL 2.

@cy208183395 VOXL doesn't need to be connected to a network in order to upgrade an SDK via the install.sh script, you can follow the steps here: https://docs.modalai.com/flash-system-image/#flashing-a-voxl-sdk-release

@Eric-Katzfey All right. We look forward to the update.