Discussions

My "ready to fly" quad continues to have problems and has yet to achieve lift off.

After several violent flips and broken props on attempted takeoffs I have tethered the quad to a platform so that I could observe it better.

In this tethered mode, I can see that pitch works correctly, but yaw and roll moves are reversed.
In other words:


Pushing the right stick to the right causes a roll to the left (opposite to expected behavior)
Pushing the right stick to the left causes a roll to the right (opposite to expected behavior)
Pushing the right stick down causes the front of the quad to pitch up (correct)
Pushing the right stick up causes the front of the quad to pitch down (correct)
Pushing the left stick to the right causes counterclockwise rotation (opposite to expected behavior)
Pushing the left stick to the left causes clockwise rotation (opposite to expected behavior)


In mission planner setup,

pushing the right stick to the right produces high pwm
pushing the right stick to the left produces low pwm
pushing the left stick to the right produces high pwm
pushing the left stick to the left produces low pwm

According to the documentation, these values are correct.

Prop configuration is correct for an X configuration and X config is confirmed in Mission planner.

The props spin in the correct directions, however the motors command shows up a discrepancy with the documentation - the motors do not spin up in clockwise sequence  - they spin up in counterclockwise sequence.

I can reverse the roll in the transmitter or mission planner and correct the roll problem, but if I do that to the rudder, arming does not work.

Suggestions anyone?  Is this perhaps caused by the motor connections to the apm? 

As I worked through the documentation I have seen numerous references to leds blinking and turning various colours but I can't really determine what is what looking at the apm.  Also there are references to the CLI switch, but I don't seem to have one, or at least it isn't brought outside the case.  Was this eliminated in the move to newer hardware?  Is there a place where all the beeps and led blinks/colours are documented together?

Ken