VOXL m500 Reference Drone

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In odometry my m500 doesn't detect x and y and the z axis is not detecting the altitude correctly

• • José Quintanilla

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Auto-Exposure Issue with Tracking Camera

• • Michael Hinckley

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@Moderator , I am using the standard OV7251 sensor. The Flicker does not happen indoors though. Happy to share a video.

Regards,
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stereo calibration problem & ask for calibration results

• • malvin

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@dtsbourg There is some good info here: https://docs.modalai.com/calibrate-cameras/
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Cannot upgrade from Graupner to Spektrum

• • mkwan

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@mkwan FYI, when we were switching from Spektrum to Graupner, we discovered this setting in the PX4 (accessible via QGC):

RC_INPUT_PROTO

To go from Spektrum to Graupner HoTT, we had to set that to "SBUS". There is a Spektrum-specific setting.

Once we made that change, then QGC started acknowledging that we had a radio connected.

That said, all of our FCv2 boards (which were the ones mistakenly sent with Spektrum although we ordered Graupner) had some problem in the UART connection between the PX4 and the VOXL, and so voxl-mavlink-server reported that there was no UART connection. We are about to RMA the VOXL Flight's to modalAI for them to investigate this UART problem. However, assuming that your PX4-to-VOXL connection is good, I think that the RC_INPUT_PROTO setting above should fix the problem you're having getting the Spektrum radios connected to QGC.
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Implementing a Custom YOLOv5 Model on APQ8096 VOXL-TFLite-Server

voxl m500 tflite yolov5 ros • • aashry

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@tpavlic Thank you, glad it helped!
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PX4 disconnected from UART & QGC cannot connected to modalAI

• • DarkKnightCH

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@Anubhav and @DarkKnightCH: Was there any movement on this?

We have 7 drones with FCv2 (all of our other m500 drones have different FC's) that were also sent to us with the wrong radios. We were able to reconfigure the PX4 for the desired radios (and confirm RC connection to QGC), but running voxl-mavlink-server manually shows a UART error on the console. We are RMA'ing the 7 units with the bad mavlink back to ModalAI for a fix, but it would be great to save the shipping if a fix was found here.
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m500 enabling RTK GPS

• • yu zhang

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@xav04 I am trying to do the same thing as you, by using the J9 port on the 5G Modem to attach an RTK GPS.
Were you able to do so?
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Controller not recognized in QGC

• • Evan D

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@Eric-Katzfey Reinstalling px4 solved my problem, thanks for your help!
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VIO keeps falling out

• • wilkinsaf

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Following up here. We upgraded to a voxl2 and stopped since this error. we think it might have been an issue with voxl flight on the newest SDK for auto exposure
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Out of space for docker load -i

• • Cristian Adam

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@tpavlic

heyyy... i do agree that using roskinetic and xenial is kind of a dumb thing... could you help me with something ? are you using the m500 drone with voxl 1 here to do the "docker pull ros:noetic-robot" command? if you are i do get an error saying

Error: Status 410 trying to pull repository library/ros: "<html>\r\n<head><title>410 Gone</title></head>\r\n<body>\r\n<center><h1>410 Gone</h1></center>\r\n<hr><center>openresty</center>\r\n</body>\r\n</html>\r\n"

i really kind of want to use the higher versions of python and a more recent ubuntu distribution.

any tips or suggestions ?
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m500 is not connecting to QGC or my DX6e controller

• • shippwr3ckk

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Thank you for the info!

After messing with it some more, I think it might have to do with the batteries I am using. Because the drone is currently turned on and my laptop is connected to the drone's wifi, but it is no longer connecting to QGC, even with a micro USB connection too.

The battery I am using is a "14.8V, 45C, 4S1P, 3300, 4 Cell battery". And it will only read on the QGC when it is around 30-50%.

Any ideas what I should try next?
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M500 VOXL connectivity issues

• • spitkowsky

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@tom @spitkowsky
I'm wondering if this may be a HW issue on the VOXL board. Possible the USB or the USB VBUS control is now no longer working correctly, thus not allowing the MH modem USB hub to enumerate (eth0 never seems to be detected, implying a USB hub path issue, but on the VOXL side since the MH HW is known good on another system).
https://docs.modalai.com/expansion-design-guide/#modalai-usb-hub-example
This may be cause for an RMA.
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M500 Magnetometer Issues

• • spitkowsky

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@spitkowsky For others who are seeing similar issues, the magnetometer rotation isn't being specified correctly in the newer SDK. The rotation should be set to the value 10. If you are seeing these issues try setting the CAL_MAG0_ROT parameter to 10.
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GPS/Battery not reading. Can only connect to QGroundControl once then it does not work.

• • shippwr3ckk

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Modal M500 Voxl Streamer

• • Samuel Bryan

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@Samuel-Bryan There are some examples here: https://docs.modalai.com/mpa-camera-interface/#sending-commands-back-to-the-server
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Huge number of camera frames skipped using voxl-logger

• • boga

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@boga ,

Can you please double check the following:
amount of free space in the /data partition: df | grep data check the write speed to the data partition : dd if=/dev/urandom of=/data/test.bin bs=1M count=1024 (this will write a test file of size 1GB). For example, using voxl2 i result i got was (on VOXL1 it will be a bit slower): #set cpu mode to perf voxl-set-cpu-mode perf #perform the write test using randomly generated data (may be limited by speed of /dev/urandom) voxl2:/data$ dd if=/dev/urandom of=/data/test.bin bs=1M count=1024 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 2.85171 s, 377 MB/s
(you can / should remove /data/test.bin after the test to free up the space)

Alex
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Cant Connect to Q Ground Control after SDK Update

• • Samuel Bryan

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@Eric-Katzfey I am using SoftAP mode in Wifi.
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Voxl Docker Mavsdk Python

• • Samuel Bryan

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@Samuel-Bryan To test if it's connected to the internet, try pinging a website like:
ping google.com
If connected you'll see something like this:
~ ping google.com ok | 09:39:00 AM PING google.com (142.250.217.142) 56(84) bytes of data. 64 bytes from lax31s19-in-f14.1e100.net (142.250.217.142): icmp_seq=1 ttl=56 time=5.12 ms 64 bytes from lax31s19-in-f14.1e100.net (142.250.217.142): icmp_seq=2 ttl=56 time=5.65 ms 64 bytes from lax31s19-in-f14.1e100.net (142.250.217.142): icmp_seq=3 ttl=56 time=5.41 ms 64 bytes from lax31s19-in-f14.1e100.net (142.250.217.142): icmp_seq=4 ttl=56 time=4.83 ms ^C --- google.com ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3005ms rtt min/avg/max/mdev = 4.830/5.253/5.653/0.309 ms ~
See here for info on connecting your VOXL to the internet:
https://docs.modalai.com/voxl-wifi-setup/#configuration-and-connection
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Connecting to Q Ground Control in Station Mode

• • Samuel Bryan

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Pictures from Stereo Camera

• • Samuel Bryan

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@Samuel-Bryan , you may have an older version of the voxl-mpa-tools package. You can try upgrading it from here (you may also need to upgrade libmodal-pipe to 2.10.1).

Alex

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