"Hi Guys,
 What if I want to use ArduIMU v3 without GPS (as AHI for OSD) and there is no ground speed. And by this:
void Accel_adjust(void){ Accel_Vector[1] += Accel_Scale((GPS.ground_speed/100)*Omega[2]);  // Centrifugal force on Acc_y = GPS ground…"

"Is there a big difference between stock MTK (that is integrated into APM 2) and this u-blox LEA-6?
Virgis"

"I got similar overshoot then Loiter.
Tried to change pids, without any changes.
Is that GPS slow position update?Virgis"

"I think v3 has faster sensor readings that is why you have got that so messy graph :)
I have hard times to set it up as AHI sensor. MPU-6000 sensor gives other values as old (v2) use to output for calculations.
And 1.9 version (supports v3) doesn't…"

"I have hard times setting it up too.
Using 750kv rctimer motors (tried with 3s or 4s without any big changes).
20A rctimer escs. Mounted in Hexa frame, 11x5 props.
and can't get it very stable.
What do you think of flashing custom firmware into…"

"Flying with Hexa, APM 2 hardware:
Does anybody else has the same problem as I do?!
in Acro and Stabilize modes flying perfect (2.5.3 better than ever before!)
but then I hit Auto mode (waypoints) engines almost quit and hexa started to fall from the…"

"Guys,

 I am back with my problem. I am using it, but.. Take a loot at video how do I start it up(twisting between boards):
http://vimeo.com/33107091
pass: ardu

Any ideas where is cold solder? or somewhere else I should take a look, tried resolder…"

"Guys I've found what is wrong with my connection. Actually connection isn't problem. The problem is that somewhere is a cold solder or so. Because then I power up the APM, LEDs on Oilpan (A, B, C) doesn't light up. Then I start pressing boards some…"

"I am just thinking about option: RTL launches then battery reaches preset amount or few % has left? You don't need to worry about running out of power?Virgis"

"Finally, I got it working. Went to another computer (win xp) and got it working there (actually not in first try, but went OK).
Now back to my windows 7 :) Installed com drivers (FTDI) and reinstalled new ones - no success. Finally checked on MP…"

"Still no changes :(
uploaded a small sample. then checked the MP, code is gone in the APM.
Uploaded back with Arduino IDE (Arducopter 2.0.45) and it does the same. Went through whole setup..
 
Virgis"