Bro, i found the solution for my problem. It was the battery which i was using. The battery was not able to supply sufficient current. So my kk board was disarming itself. Bldc motors are hungry for current.
Whenever i try to arm the kk 2.1.5 flight control board by moving down the throttle and then towards the right it says armed. But after that when I try to give a little throttle the kk board auto-disarms itself. What could be the reason?
Wiring of all the receiver, board and motors are in the...