No hearbeat on Telem 2 or Serial 4

ArduCopter Copter 3.3
1

I am trying to connect a Storm32 gimbal to Telem 2 (also tried serial4) I have followed the wiki but not working.

Hooking a ttl to the Storm I see a heartbeat. Doing the same to the PX4 I do not see heartbeat.

It seems like Mavlink is not starting for those ports even though I have them configure in MP 1.3.31.8 as type 1 GCS Mavlink

Any suggestions?

2

Thanks for testing Copter-3.3.

I guess you’ve probably followed the instructions on the wiki. copter.ardupilot.com/wiki/common-storm32-gimbal/

It’s really hard to say what the issue is but I’d say just double check the parameter settings listed on that page. Perhaps the SERIALX_BAUD isn’t set properly or the BRD_SER2_RTSCTS hasn’t been set to “0”?

3

So I was able to fix this by follow the discovery of to high a resistor on the Storm board. This was discovered by extensive testing over on RCGroups. http://www.rcgroups.com/forums/showthread.php?t=2494532

They did some great work!

4

Flyer007, well, that’s quite some investigative work you guys went through. Nicely done.

I’ve updated the wiki with your image a short description and a link back to the rcgroups discussion.
planner.ardupilot.com/wiki/commo … 32-gimbal/

Can I ask, where did you get your SToRM32 gimbal from? I’m just wondering if it a particular manufacturer is more likely to have this issue.

5

This was a V1.1 Storm32 from Ready To Fly Quads. http://www.readytoflyquads.com/storm32-bgc-3-axis-stm32-brushless-gimbal-controller

Thanks for updating the Wiki.