That was actually a very good question. Any recommendations?

@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.

@modaltb I see. It's good to know the story If 22027 is the default one, it will be all right. To be honest, I didn't touch the CBRK_IO_SAFETY before, and it's a bit weird why it was automatically modified for some reason. Actually, I was trying to refresh a re-compiled 1.11.3-0.2.3 with my modification (increasing GPS log rate). So, I guess it might reset the value to 0 by PX4 default. Anyways, thanks so much!

@Alex-Gardner All right, thanks so much for that

@stevet All right, thanks so much for that, and I will have a try about it then

@justinGE This is good information, thanks for sharing!

@Kris The LTE add-on board (M0030) has 2 JST ports for client USB devices

@joshuagaus Even with our new upcoming module we will not support PPM. It looks like there may be some other communication options on that receiver so you may want to review all the possibilities.

@Alex-Gardner All right, thanks so much for double-checking

@Alex-Gardner Definitely interested in open VIO options. Would be awesome being able to use other techniques for picking out key points and even accelerate them on the hardware. Maybe QVIO already does that...

Hi @Chad-Sweet thanks for that, and it seems it could work by setting a higher value of the maximum speed in QGC. I will test it again to see if it could work to achieve a fast speed in the mission mode