Pixhawk weird behaviour

I bought Radiolink Pixhawk a few days ago. Loaded it with APM plane 3.9 and mounted it on my flying wing. Did all bench test like stabilizing, failsafe trigger and power module tuning. All worked well and i also did a test flying. During first flight it behaved normal, i tested stabilize mode and it was stabilizing the wings but with nose down posture so i thought i need to do acclerometer calibration again by keeping nose a bit up so that it can maintain level flight. I also connected mavlink to TBS diversity receiver and i was getting flight data from pixhawk to ground TBS crossfire tx module on Tower app on my android through bluetooth.

Now next day i did calibration and my buddy launched the craft just after takeoff motor shut down and i had no control from transmitter. I did another launch same thing happened again. As my buddy launch the wing within 1sec it cuts the throttle and the rc control. 

So i reinstalled the firmware and did all mandatory stuff. Then i tested it on bench. I found that after arming as i increase throttle more than 50% it cut the radio signals and after 3 sec it cuts the throttle. Pixhawk reboots  it self. At first i thought it can be a faulty power module. So i changed it with my old trusted one. Then tested in workshop( bench test) there it worked fine it was not cutting the signals and i had control over power.

Next day at flying field i took off and did some circuiting checked stabilize, it behaved weird so back to manual. After 1 min. for flying i suddenly lost the radio signal and craft crashed it the ground with resumed throttle. There is no problem with radio, it works very well because i've tested it over 15 miles.

i can't figure out what is wrong with it. 

Following stuff i used-

Radiolink pixhawk with M8N Gps

TBS Crossfire radio system with diversity receiver providing PPM out.

Turnigy 9xr Pro

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

Join diydrones

Email me when people reply –
This reply was deleted.

Activity

Abdulatif Tlaib liked Ryan's profile
9 hours ago
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…
Sunday
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
DIY Robocars via Twitter
RT @a1k0n: Another problem was that I was over-constraining the car's allowed accelerations, so it didn't think it could turn as tight as i…
May 26
DIY Robocars via Twitter
RT @a1k0n: Breaking the map up into two halves worked, but I had to be more careful about separating the inner track from outer. There's se…
May 26
DIY Robocars via Twitter
RT @a1k0n: Here's a datalog for my fastest lap of the day. Lap timer is tiny window lower-left. https://t.co/myrlWWrKUY
May 26
DIY Robocars via Twitter
May 26
DIY Robocars via Twitter
RT @a1k0n: Here was my car's POV. Man this track is confusing in first-person! After the incident my camera was all scuffed up and I was af…
May 23
DIY Robocars via Twitter
RT @circuitlaunch: Loved seeing so many familiar (masked) faces at Circuit Launch today for our first in person @diyrobocars in over a year…
May 22
More…