I have a problem that I cannot seem to resolve. I am unable to arm my quad so that I can fly.
My set up...
A 3D robotics quad
APM 2.5
Firmware 3.0.1
Spectrum DX7s Transmitter
AR8000 receiver with telemetry installed.
Mission Planner 1.2.70
Problem
The APM will not arm. After APM boots I wait for GPS lock (LED solid blue) I hold the throttle at low and to the right. The RED LED changes from flashing red to solid red momentarily then goes dark.
Troubleshooting that I have done and attempts to correct.
1- Clean install of the firmware on the APM.
2- Calibrated radio multiple times.
3- Calibrated ESC's procedure works well
4- Trims on controller have no offset and the "rudder" is set correctly.
5- Tried a new clean model on the TX and rebound the Receiver. (repeated above)
I have run out of options and really need some guidance.
Replies
I agree. It is incredibly difficult to find small bits of information. The data is so fragmented and posted and responded to in troubleshooting posts like mine.
For example, I had to disassemble my quad to make a small modification to a frame plate. When I was re assembling it I couldn't remember how my ESC should be plugged in to my PDB. So I went to the assembly instructions to determine the proper way. There is not one tidbit of information anywhere to be found. I then started hunting for some photos of other quads to see if I could get a hint from an image. No clear images anywhere. I ended up just making a guess and risking that I would fry my ESC. Fortunately, I did it correctly. :)
I also am in the I.T. industry and this is one of the big reasons OpenSource gets a bad rep from Fortune 500 companies, poor documentation. I enjoy challenges but wasting time is not part of the challenge.
https://www.youtube.com/watch?v=gZ3H2eLmStI
Pre-Arm checks.
If that doesn't help, read this:
http://www.diydrones.com/xn/detail/705844%3ATopic%3A1324701
Maybe read it anyway.