Hi everyone,

I have been having a tough time with my telemetry system in recent months.  To be clear, this USED to work.  I used to be able to connect from my mission planner to the APM over both USB cable and over telemetry radio.  At some point, during the rest of my build out, the APM stopped arming.

I have troubleshot the problem down to a single circumstance, the connection of the 3dr radio using the 3dr telemetry Y splitter.  Please see the attached video for full explanation.

Any suggestions or clues would be very welcome!

https://www.youtube.com/watch?v=VaLN-LUtpWU

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • Solved:  my problem was the either the 3DR power module or the APM 2.6 input for the power module not sensing the battery voltage.  I went into Config/Tuning  and then Standard parameters and searched for BATT.   Then i Disabled the BATT_MONITOR parameter. Now arms up and work good while under 3DR radio.  I found this by looking under FLIGHT DATA tab and clicked on messages, after the barometer calibration the message Low Battery! would come up. This never showed up on the Flight Display.  If your problem is different than mine it might show up there under messages. Hope this helps.

  • Mine would arm up but only so long as the micro USB cable was connected.    Everything would work fine but the minute I pulled out the cable from the 2.6 then it would disarm. Thought is was maybe a voltage issue but not sure. I have the inputs powered separately from the outputs with the J1 jumper removed.

    • Yep, this is quite possibly the same issue. I suspect it is a voltage issue, but I never did figure it out.  if you learn anything, please do let me know.

  • I have sort of a similar problem - did you end up fixing yours.

    Here is my problem:

    http://diydrones.com/forum/topics/troubles-arming-after-adding-fpv-...

    • No, I never did hear anything from anyone about this and haven't made any progress.  Sorry.  I will watch your thread for replies as well.

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @chr1sa: You can see this in person in two weeks for our next live event with real cars. It's great fun for adults and kids alike, and…
Sunday
DIY Robocars via Twitter
RT @chr1sa: The final race (1:24) at yesterday's @DIYRobcars virtual event was our best. It's only two minutes long but it has everything,…
Sunday
DIY Robocars via Twitter
RT @chr1sa: The monthly @diyrobocars virtual race is starting now! https://www.twitch.tv/roboticists2
Saturday
Mike Whitney liked Mike Whitney's profile
Jul 19
DIY Robocars via Twitter
Jul 2
DIY Robocars via Twitter
Jun 26
Abdulatif Tlaib liked Ryan's profile
Jun 24
DIY Robocars via Twitter
RT @SmallpixelCar: First time at @wsraceways. After tuning @HokuyoUsa lidar signal and camera sensor on @NVIDIAEmbedded, my car was able to…
Jun 20
DIY Robocars via Twitter
RT @breadcentric: The handy bit about racing with self-driving cars is that one can type while the car is racing. Report from #AWSDeepRacer…
Jun 18
DIY Robocars via Twitter
RT @chr1sa: Our Bay Area @DIYRobocars meetup is now at 2,700 members. Next in-person events (in Oakland) are training day on July 17 and…
Jun 18
DIY Robocars via Twitter
Videos from the ICRA autonomous racing workshop are now available: https://linklab-uva.github.io/icra-autonomous-racing/
Jun 10
DIY Robocars via Twitter
RT @SmallpixelCar: Prepared race track for Warm Spring Raceways @wsraceways and looking forward to test my new car at RAMS RC @ramsaicar fa…
Jun 6
DIY Robocars via Twitter
RT @f1tenth: Trying out some nasty blocking maneuvers 🏎️🤖 #f1tenth #autonomousracing https://t.co/nMTstsaogM
Jun 5
DIY Robocars via Twitter
May 27
DIY Robocars via Twitter
RT @araffin2: I will talk this Saturday from 18:00 to 19:00 Paris time for the @diyrobocars community about learning to race in hours using…
May 27
DIY Robocars via Twitter
RT @a1k0n: Luckily the infeasible hairpin problem was easily reproducible in simulation and I could test the fix before bringing the car ba…
May 26
More…