Yesterday I setup my quadcopter electronics without frame. My setup is:
- KDA 20-22L brushless motors
- Electrifly 35A Brushless Electronic Speed Controls
- Futaba 6EXP 6 Channel FM Tranmitter/Receiver
I uploaded the arducopter.pde code to ardupilot mega ( http://code.google.com/p/arducopter/source/browse/#svn/trunk/Arduco...
). I added the following code to void setup() to arm the electronic speed controls.
// RC channels Initialization (Quad motors)
APM_RC.OutputCh(0,MIN_THROTTLE); // Motors stoped
Unfortunately electronic speed controls (or servos) did not respont to transmitter commands except the throttle stick. When armed throttle command increases or decreases speed of all motors. And also motors did not respond the position changes of the IMU. Channel 5 switch and channel 6 knob position did not make any difference (yellow light indicates that channel 5 switch operates correctly). I couldn't be able to find what is going wrong.