I am updating my ArduCopter software to 3.1.2 on a APM 2.5 and am doing the ESC calibration for Afro 30A ESCs (they have SimonK update also)..
I have completed the radio calibration already. I put my throttle stick to max throttle and plug in my lipo. This powers the APM, RX, ESCs, and Motors (using the 3DR Power Module). After a few seconds, the APM starts to beep. I disconnect the battery and reconnect it. Here is when I am not sure if the ESC calibration worked as expected. When I reconnect the battery, I get a single beep and then nothing. (still at full throttle). When I lower the throttle stick to minimum position, I get 2 beeps and the LED light on the ESCs all change to green. As I move the throttle stick up and down the motors start to spin and get faster as throttle is applied (this is what i expected).
Does this mean that the ESC calibration is complete? I was watching a ESC calibration youtube video (https://www.youtube.com/watch?v=gYoknRObfOg) and they mentioned 3 beeps to signify that you are on 3S battery and then a number of beeps to signify full throttle and a number of beeps to signify min throttle during ESC calibration mode.. I did not get these same steps...
Any help would be much appreciated. Thanks!