I have APM 2.5, Arducopter 2.9.1 and MP 1.2.38, a quadcopter kit.
I've been trying for 2 months to get my motors to arm. I perform the arming sequence as per the instructions (which I think might be outdated because they don't work), and nothing predicatable happens:
1- Without any power to the APM
2- transmitter is powered on and throttle increased to full
3- APM is powered on, ESCs beep once.
4- APM is disconnected from the battery
5- APM is repowered, beeps once
6- throttle on transmitter is lowered to zero, ESCs beep once.
7- motors respond to throttle correctly, so far so good...
8- throttle is at zero, yaw all the way to the right for 4 seconds
9- APM LEDs haven't changed their flashing sequence this whole time: solid blue, flashing red, rapidly flashing Tx/Rx.
10- APM is powered down, transmitter switched off. Transmitter repowered, APM repowered, but no motor response. Do I have to callibrate the ESCs every time I want to fly?
Seems like a simple problem brought about by contradictory and confounding documentation. Occasionally, the above procedure will yield no results (no motor response), but sometimes it WILL do something, yet other times the ESCs will beep twice with my throttle at full, then I'll drop the throttle to zero, the ESCs beep once, then the motors will respond to my transmitter! If it beeps twice, that means there's an error...? I cannot make heads or tails of it.
The LEDs are supposed to change flashing pattern durring the callibration, right? Arducopter's documentation has changed so many times, and I can't find the current version explaining what the flashing LEDs mean...
I'm at my wits end. PLEASE tell me what I'm doing wrong. 3DR customer service simply shrugs and throws more outdated documentation at me... Everything has gone so smoothly until now...