Topics created by Steve Turner

@Moderator we have tried swapping modules, cameras, and VOXL2(minis)

Generally, it is exacerbated by the extension cables.

@Steve-Turner cat /sys/bus/soc/devices/soc0/serial_number is unique and will be unchanged after a factory flash.

That is what we use internally in our prod line as a board UID

We do not have A/B per se, but have tried the Android OTA method which is similar in concept. A file of the full system image is downloaded and then programmed on reboot

We would need to work offline to enable

I am also trying to understand this. I was able to forward the mavlink messages from voxl to the station via wifi (using voxl-wifi station), but I am not able to specify the port as it streams everything to the default port 14550. How can I specify the port to which I can send the telemetry?

Hi @Alex-Gardner I'm trying to accomplish the same thing as the OP but I'm running into some problems (my thread: https://forum.modalai.com/topic/1703/non-standard-camera-configuration-on-voxl-running-4-0-0-0-9-4). When connecting the stereo to J3 and hires to J4 voxl-camera-server -l outputs only two cameras which are the stereo, it does not recognize hires unless its on J2 but that has its own slew of problems which I've gone into more detail in my thread. Any help with this would be appreciated.

These are usually hardware issues. Some possibilities

crimped flex cable exposed copper on the flex cable loose or damaged connector

@Steve-Turner Glad to hear you were able to make substantial progress!

Yes, Very!

We've got everything working internally and are just cleaning up a few last system image tweaks allowing the sensor writebacks then we'll publish everything!

Thanks Vinny -- we'll keep an eye out for the email!

@DarkKnightCH to followup on this -- a reflash of the VOXL Flight Core solved the problem for me. It was in an unresponsive state and I was unable to change parameters or talk to the Flight Core until I reflashed the current release of firmware from ModalAI.

Hello stevet,

The reported voltage is the voltage measured by the ESC. In fact all 4 ESCs on the 4-in-1 ESC measure the voltage, you can try to run the calibrate script on others and double check the result. The current of 2.9A for a motor similar to EMAX 1306B is quite reasonable, in fact is probably on the low side (not a concern).

If you are using a power supply that is capable of outputting 7.4V at much higher amps (lets say 10A), then follow these steps to figure out what is wrong:

when ESC reports 2.9A, check to make sure the power supply also reports the same or similar current. run the calibration on a different ESC id to make sure the voltage measurement is similar to your first test use a multi-meter to measure the voltage right at the power input pads of the ESC (may need to solder temporary wires to ESC and connect them to multi-meter in order to do it safely.. use your judgement) the multi-meter voltage measurement should match very closely the voltage measured (under load) in the ESC the issue is most likely in the wiring between the power supply and the ESC (including possibility of a bad connector or bad solder joint at the connector).

Alex

Yes,

We have a RMA process which can be found here

@Eric-Katzfey OK good to know. Thanks for looking into that. Is there a good email I can reach out to discuss further with you?

Hi!

The hardware on voxl only supports a stereo pair out of the J3 connector. However, you could absolutely plug in fisheye cameras instead of the pinhole ones if you're just trying to get a better field of view. Additionally, the system is setup to be able to support that same ov7251 camera in both the J2 and J4 ports, so you could in theory have 4 fisheye cameras concurrently.

NOTE: voxl-camera-server (opensource) is not set up to to handle multiple cameras of the same type since we don't actively support any camera configurations like that. It's very doable though, you'd have to check the camera IDs for the configuration that you create and mod camera server if you're trying to use our standard software stack (so you can out of the box support 3 fisheye cameras, and it would only take some userspace coding to support 4)

Great to hear.

I forgot about the ToF. Chad beat me to the punch here.

Glad that helped!