Hi,
I started off with an ArduCopter , it took me a while but after I linked the three PID to three RC channels I finally got it stable in the air.
My PID where 3.20 , 0.32 , 1.11.
I'm using 9ch Radio, CF2822 motors, 20A ESC towardpro, 1047 propellers, 2200 3s and 1 CM square tubes all from HK. Length was ~ 60 CM .
After using it for at least three to four times, the airframe collapsed in midair (It was one faulty motor) , and it fell from around 10 meters high.
Besides the crashed frame, I discovered that the little white box besides the mini usb (I think it is the relay?) got 4 pins disconnected from the main board and I re-soldered them very carefully.
After crash recovery, I created a new airframe with the same components but was 50CM long.
I'm trying now for days , was no luck to get the right PID, it seems they are much grater than the previous ones (even 4.5 for P seems to be not enough).
When I loaded the APM ADC test , I discovered that both X-Gyro and Y-Gyro produces always the same values?!!
Did I lose my APM ?
Replies
I only have basic soldering skills, I tired my best to locate any another loose component but did not find any.
I checked VDD (pin 9,19 ) and they have good 3.1 volt , also the ground pins are connected.
I do not have an Oscilloscope to measure the xout and yout.(I think I need one ?)
The switch down=low is set to be 1,2,3,4 = low,high,low,low is this correct?
Is there any current use of the relay? after all this is the only component that I discovered to be disconnected ?
Tracing the board , I see that gyro output are going into the ADC, then suggesting to have an external SF IDG 500 that is hocked into two spare analogue pins as a workaround is not possible?