Using Pixhawk with a Fatshark headtracker

It's amazingly difficult to find information on this subject.

I'd like to control the pitch, roll, and yaw, of my gimbal (Storm32 controller), from the control outputs of a Fatshark Trinity headtracker (mounted in Dominator V3's), using a Pixhawk, Taranis X9D, and X8R receiver.

I do not want to use Mavlink, telemetry, or serial port instructions for the Storm32, as those ports are already overly busy handing the GPS, OSD, etc...so I want to use plain ole RC channels.

The Trinity headtracker outputs control instructions on combinations of channels 4 thru 8...and since Pixhawk uses 1 thru 5 to control throttle, etc, and flight modes, that leaves 6, 7, and 8.

I can not figure out how to get the Pixhawk to pass thru control instractions from the Taranis radio (which originate from the Trinity headtracker via the trainer port input) 

Since I have a hexacopter, which occupies channels 1 thru 6 for the motors, I've tried to use 7 and 8 for gimbal control (still needing 1 more for the 3rd channel), and then also tried to use RC9-16.

NO LUCK AT ALL.

I can see in Mission Planner, for example, channel 8, reacting to the radio's input, but the Pixhawk channel 8 output, DOES NOT CHANGE (why?).

Anyone have any ideas on how I can proceed?

Thanks...

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

Join diydrones

Email me when people reply –

Replies

  • wish there was more clarification or a video on this. id like to head tracking with ardruplane also. im still confused how you got it to work

  • OK...what I did was use a y-cable from the SBUS out port on the X8R...sent one to the Pixhawk of course, and the other to the SBUS input on the Storm32 card...in this way I avoided using PWM.  Other possible solutions I heard for using PWM is that the Pixhawk needs to be ARMED to send control outputs on channel 8? (and maybe others), and/or, I needed to connect the Pixhawk

    I defined channels 6, 7, and 8 on the Taranis, as head tracking roll, pitch, yaw (those might be out of order)...and it worked.

    --

    Bill

  • I wanted to clarify a bit...

    The Pixhawk IS recognizing the control inputs from the radio...but it is NOT passing those control inputs thru to the gimbal.

    I can see, for example, RC8's input PWM value change...I can also see the bar move on the radio calibration page in Mission Planner...but the OUTPUT from the Pixhawk does NOT change.

    What gives?

    Thanks...

This reply was deleted.

Activity

DIY Robocars via Twitter
May 15
DIY Robocars via Twitter
May 14
DIY Robocars via Twitter
May 13
DIY Robocars via Twitter
RT @f1tenth: Say hi to our newest #F1TENTH creation for @ieee_ras_icra next week in Philly. It’s going to be huge! 😎 🔥 @AutowareFdn @PennEn…
May 13
DIY Robocars via Twitter
May 11
DIY Robocars via Twitter
May 8
DIY Robocars via Twitter
RT @SmallpixelCar: Noticed my car zigzagged in last run. It turned out to be the grass stuck in the wheel and made the odometry less accura…
May 8
DIY Robocars via Twitter
RT @SmallpixelCar: Test my car. RTK GPS worked great. Thanks @emlid for their support. https://t.co/EkQ6qmjmWR
May 8
DIY Drones via Twitter
RT @chr1sa: @kane That's @diydrones circa 2009. Still have a box of those Canon cameras that we used to strap into planes, just like this.…
May 3
DIY Robocars via Twitter
RT @chr1sa: Our next @diyrobocars race is going to be outside at a real RC racetrack in Fremont on May 28. Fully autonomous racing, head-to…
Apr 30
DIY Robocars via Twitter
RT @f1tenth: Our Spring 2022 F1TENTH course @PennEngineers is coming to an end with a head-to-head race as a big finale. So proud of our st…
Apr 26
DIY Robocars via Twitter
RT @DanielChiaJH: I wrote a thing! Throughout the development of my @diyrobocars car I've been using @foxglovedev Studio to visualize and d…
Apr 23
DIY Robocars via Twitter
RT @SmallpixelCar: My new car for high speed. Low body, everything ( @NVIDIAEmbedded Jetson Xavier NX, @emlid RTK GPS, IMC) under the deck…
Apr 23
DIY Robocars via Twitter
Apr 21
DIY Robocars via Twitter
RT @f1tenth: F1TENTH Race training setup @PennEngineers for our upcoming ICRA2022 @ieee_ras_icra competition. @OpenRoboticsOrg @IndyAChalle…
Apr 21
DIY Robocars via Twitter
RT @fatcatFABLAB: Proud to be hosting a restarted DIY Robocars NYC Meetup April 26. Come by if you want to talk about and race self-driving…
Apr 17
More…