Step 27: RC Controls
Usually one joystick controls throttle and yaw, and the other stick controls roll and pitch.
Depending on whether you are left or right handed, you may wish to control throttle & yaw using the left or right stick. To make this change, simply swap the signal wires between the flight controller circuit and the RC radio receiver.
If a direction is reversed, the RC radio transmitter should have a built in reversing setting. If it doesn't, you must have the worst radio in the world and should probably buy a new radio, or else, find the source code that takes the signal inputs and flip the values. (or you can disassemble your radio and re-wire the joystick's potentiometers).
Also the joysticks are usually spring loaded so that they return to center when you let go. You probably do not want this for the throttle. Please see your RC radio transmitter's manual to see how the spring can be disabled. On my RC radio transmitter, I simply take it apart and remove the spring (don't lose it!).
The flight software (AeroQuad) have an ARMED and DISARMED state, in the disarmed state, the motors are disabled for safety. Move the throttle down and then to the left to disarm. Move the throttle down and then to the right to arm. Memorize this so you can disable the motors in an emergency. On my circuit board design and modified version of AeroQuad, the LED3 indicates that the motors are armed.
The switch on channel 5 switches the software between the "acrobatic" mode and the "stable/attitude" mode in the software.