Discussions

Hello, I have 2 drones.. both DJI F550. Drone #1 uses Naza Lite controller and works great!

My second drone is controlled by a Pixhawk.

Pixhawk

OPTO 30A ESC

DJI 2212 motors

4S battery

Spectrum DX9 transmitter

Spectrum AR8000 receiver

3DR PPM Encoder

Problem #1

I now understand that the OPTO 30A ESCs cannot be calibrated. However, my PIXHAWK seems to be 'stuck' in ESC calibration mode. On boot, the LED blinks fast red/blue/yellow. When I push the safety button, I can throttle up and down and the motors respond. When I cut throttle to zero and turn the pixhawk off, the next time I power it, it appears to be back in calibration mode.

Problem #2 (what got me in to Problem #1)

Set up the Pixhawk and went for my first flight... on arm, the motors spin slowly, when I throttle up the motors increase RPMs but only by a little bit. At max throttle, there is not enough RPM to lift the craft. However, at any throttle setting (except idle), when I push on any other stick (elevator, roll, or even rudder) the (some?) motors increase RPM significantly (I believe they are attempting to respond to the control requests). Still there is not enough lift to get the craft off the ground, but you can see it leaning/attempting to roll or pitch. Someone suggested that I calibrate the ESCs... I followed the instructions on how to do that, but since the 30A OPTO ESCs cannot be calibrated, that didn't seem to help. And now I'm somehow stuck in calibration mode on the Pixhawk.

The motors/escs are good as when I connect them directly to the output of the RC receiver, they work perfectly.

Help! Any thoughts/comments welcome!

Chris