@kitkatSG There's generally a couple of different possible video distortions. One is due to the vibration from the motors. If you mount the camera on rubber dampeners you can remove most of this type of distortion. But of course the drone is moving and that causes motion as well. We don't have a recommendation on gimbal but would love to hear if you are able to find something that works well for you. And we have not tried any GStreamer stabilization software so cannot comment on that, but would love to hear if you find a software stabilization solution that works.

@Chad-Sweet Alright, if MAVROS hasn't been tested on the RB5 drone then what is the currently established method of programmatically flying it?

Thanks. CTV, CTU and CTT*: detected by usb, connects to wifi / Q Ground control and can be armed / throttled. For some reason these just worked after I pushed the button and powered them on, didn't have to go through the full-flash process. *For CTT it was a Q Ground Control related issue. I saved the parameter file from CTV and loaded it onto CTT. CU7: non-responsive to flash-full process: [INFO] version: 0.0 [INFO] adb installed [INFO] fastboot installed [INFO] qti-ubuntu-robotics-image-qrb5165-rb5-boot.img present [INFO] abl.elf present [INFO] qti-ubuntu-robotics-image-qrb5165-rb5-sysfs.ext4 present [ERROR] Device in fastboot mode. Unable to backup camera files. [INFO] Please bring device out of fastboot mode by first running: fastboot reboot I then enter fastboot reboot and try sudo ./flash-full.sh again. It gets stuck at [INFO] version: 0.0 [INFO] adb installed [INFO] fastboot installed [INFO] qti-ubuntu-robotics-image-qrb5165-rb5-boot.img present [INFO] abl.elf present [INFO] qti-ubuntu-robotics-image-qrb5165-rb5-sysfs.ext4 present [INFO] Saving camera calibration files and is no longer detected by usb. However, when I push the button again, it does appear on lsub and fastboot devices. c9ce2d0d fastboot

Thanks! I was able to do that. I just wanted to make sure before finding a tool small enough to be able to do that, and trying to twist the lens without knowing if it should be twisted.

@Cody-David-Graham Thank you for moving over here! Will pass this along to the team.

No, I don't believe so. I only have one RB5 in the lab.

@Jey-Lites Please be aware that we are currently shipping our VOXL 2 drone (Sentinel) and that you can purchase the VOXL 2 board without the drone as well. The VOXL 2 features the same Qualcomm QRB5165 device that is on Qualcomm Flight RB5 but in a much smaller form factor. Please refer to the comparison of our development platforms here: https://www.modalai.com/pages/development-kits

@modaltb hello, when will the next SDK release be available? Would love to the UARTs working for external FC. Thank you.

Hi @Cliff-Wong , Thanks for showing the streaming method using gst-launch command. I have used a similar command to stream camera=2 (suppose this one is 4K camera in my RB5 as I check all cameras from 0 to 4). However, when I increase resolution of video more than 640x480, the color of the video looks weird. For example: 640x480: [image: 1655693397940-640x480.png] But when increasing resolution higher than 720x480, e.g., 1920x1080, the color of the image is weird. For example, blue color on the EXIT board will turn to orange (I cannot upload the large image on this website). Do you know how and where to fix this issue? Btw, I have increased bitrate=10,000,000 in qtiqmmfsrc but it does not help.

@Adrian-Hidalgo Thank you for your patient! Recall the changes between spin and no-more-spin is active VIO and VOA services while indoor. Then disable both VIO and VOA service, but motor no longer spin after reboot. Finally found a solution without flashing the system image: Step 1: load https://gitlab.com/voxl-public/flight-core-px4/px4-parameters/-/blob/master/helpers/rb5/ekf2_outdoor_gps_mag.params Step 2: set vehicle param COM_ARM_WO_GPS to 1 Step 3: power cycle RB5 Now arm RB5 after it comes back online, motor spins. -:) Hope this helps anyone else running into same issue.

@chris_macdonald @kitkatSG Here is an example of how to send an AT command to the Quectel modem: echo -ne "AT+QNWPREFCFG=\"mode_pref\",LTE:NR5G\r" | busybox microcom -t 1000 /dev/ttyUSB2 The above gets ran as part of rb5-modem in order to set the network preference to allow both LTE and 5G. Here is a link to the Quectel RM5* series modem AT command manual, you can probably find a relevant AT command to use there: https://www.quectel.com/wp-content/uploads/2021/05/Quectel_RG50xQRM5xxQ_Series_AT_Commands_Manual_V1.2.pdf

@tom Thank you! I received your email. I'll try it.

Indeed, my bad, early RB5 has RC version 1.0. Bind successfully now after connecting AR6210 manual bind satellite. Thank you, Chad! Thank you, Adrian!

We are working on a port of VOXL SDK for the RB5 Flight platform right now. We expect a stable release in late June / early July The code is available on the dev branch. If you are comfortable recovering your system into a known, working state, then you could try to install now and see if what is there works for you. VOXL SDK of course has all of the flexibility built in to have multiple clients, etc.

Hi @JehyunCha, Welcome to the RB5 Platform! It's likely you need to set up ADB. Generally, we recommend you start by following the RB5 User guide linked Here before checking our the RB5 SDK. This page in particular should help you out: Connect over ADB, as well as Set up ADB Let us know if you are still having trouble, Matt

@joshuagaus You would use the 4 pin JST USB port on the modem carrier board.

@justinGE This is good information, thanks for sharing!