ModalAI Forum

Vinny

Hi @jemyers
Great question, and one we get fairly often.
Across all of the components you listed, our published operating and storage temperature specification is 0°C to 70°C. This applies to the MCBL-00084-180 cable, VOXL 2 flight computer, MDK-M0155-1-00 image sensor adapter, and MDK-M0062-3-00 Ethernet and USB Hub Adapter.
One component worth calling out specifically is the MSU-M0161 EO camera, which uses the Sony IMX412 image sensor. Sony only guarantees image performance between -10°C and 60°C, so camera-equipped configurations are particularly sensitive at temperature extremes and should be considered the limiting element in your system thermal budget.
As another data point, our M0041 power module has been internally qualified by ModalAI at -40°C to 100°C operational, which gives a sense of the headroom available at the power input stage when the rest of the system is not the limiting factor.
Our 0°C to 70°C published spec is a conservative bound driven by limiting components throughout the system including crystals, connectors, and image sensors as noted above. That said, the underlying platform has demonstrated capability well beyond these limits. VOXL has been selected for and qualified on the JPL CADRE lunar mission, passing qualification well outside any commercial temperature spec. VOXL 2 has similarly undergone rigorous external environmental qualification for customer programs. A final integrator who performs their own system-level thermal profiling and qualification can reasonably expect operation outside the published range depending on configuration and use case.

Eric Katzfey

Yes, your understanding is correct. To see the PX4 IMU values use standard PX4 commands. For example, on voxl2 you can use the PX4 listener commands:

voxl2:/$ px4-listener sensor_accel 

TOPIC: sensor_accel
 sensor_accel
    timestamp: 30123125 (0.006725 seconds ago)
    timestamp_sample: 30122829 (296 us before timestamp)
    device_id: 2490378 (Type: 0x26, SPI:1 (0x00))
    x: -0.05360
    y: 0.01754
    z: -9.68999
    temperature: 34.62560
    error_count: 0
    clip_counter: [0, 0, 0]
    samples: 20

voxl2:/$ px4-listener sensor_gyro 

TOPIC: sensor_gyro
 sensor_gyro
    timestamp: 37716660 (0.003955 seconds ago)
    timestamp_sample: 37716405 (255 us before timestamp)
    device_id: 2490378 (Type: 0x26, SPI:1 (0x00))
    x: -0.00409
    y: 0.00796
    z: -0.01429
    temperature: 34.32669
    error_count: 0
    clip_counter: [0, 0, 0]
    samples: 20

Eric Katzfey

Our downloads page was recently updated and in the process the Hexagon SDK download file sdk.tgz was locked. We'll get that fixed and let you know when it is ready.

Eric Katzfey

Yes, unfortunately some of the dependencies have changed. Can you checkout tag sdk-1.6.4-1 of voxl-mpa-tools and then in the docker ./install_build_deps.sh qrb5165 sdk-1.6. That should work.

Vinny

Hi @adam These claims remain true.
We are exploring some items in the future for individual certification to ease downstream efforts by integrators, but as of today, the efforts still largely fall on the end-product integrator (which is unavoidable no matter what certifications we employ) and we can help where needed if any requests are specific and actionable.

Vinny

Hi @muqing-cao Correct, M0213 does not have a USB hub on it like M0090.

Vinny

Hi @markdelo,
Is your question similar to this recent post?
https://forum.modalai.com/topic/5309/m0213-wifi-board-pinout-and-availability
The info you provided are serial numbers, not product numbers.
If you can provide product numbers, that would help us better understand your question.
If the linked post is indeed similar in request, then I do apologize we do not have a ready-made solution for that.

Thanks!

Vinny

Hi @awagner
Apologies for the delayed response. It looks like this post slipped through during our recent forum and documentation site refactor.
Are you still experiencing issues with your M0041-4?
A few clarifying questions will help:

When you mention "that is dead too", can you please clarify what exactly is no longer working? The M0041-4 power module, the VOXL 2 Mini, your power supply, or some combination of the three?
Can you share more details about your ESC, make, model, and how the battery pads are connected to the power module? A photo of your wiring connections would be very helpful here.

On the spark at plug-in: direct battery connection is the standard way to power up a drone, so that in itself is not unexpected. The spark on connection is not uncommon with a 6S pack due to charge balancing and inrush transient at the moment of contact (especially with our FPV ESC with near 1,000uF of capacitance). That said, we do include protection on the M0041-4 for this reason, so something unusual may have happened in your specific setup, which is why we'd like to see the connections.
As a general note, we typically see XT-30 used up to 4S and XT-60 up to 6S. Running 6S on an XT-30 is outside the more common usage pattern and worth flagging as a potential factor. We had some folks mistake a 4S ESC for 6S due to exactly that on early Stinger models. We've since remedied that.

One practical note: depending on what has failed, a replacement power module may be a faster and cheaper path than a full debug effort. That said, we do want to help you identify the root cause so this does not repeat. Replacing hardware without understanding the failure just puts the next module at the same risk.
Let us know and share photos if you can.
Again, sorry for the long delayed response.
Thanks!

Vinny

Hi @muqing-cao I am glad you like the M0213, as it does offer more power than most USB-A dongles, which is why we went to it.
The Only thing I can think of is to buy an MCBL-00022 and when plugged into the M0090 5G Modem Board USB 10-pin JST port, you have a standard USB host port, and maybe Bots Unlimited makes a USB-A version you can use. We just do not offer a clean/direct solution to accomplish what you are asking for.

Eric Katzfey

What commands did you use to start each one? I would try qshell mb12xx start -X -b 4 -a 0x66 and qshell mb12xx start -X -b 4 -a 0x70

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