Here we are adding an extra joystick to our 9X that we can control with a spare finger at the back of the transmitter.

Some ideas for what it could be used for.

• Pan and tilt for an FPV camera.
• Thrust vectoring control.
• Crow brakes and reflex. (with some mixing)
• A gun turret.
  

Difficulty: Easy. Basic soldering and drilling skills required.

A very quick video demo and explanation, it is even in HD!.

Read on for the details.