I am trying to control my RC plane with arduino instead of the transmitter. I will need some digital potentiometers to replace the joysticks....I don't know though of what PCB pins of the joysticks I must solder the digital pots too or how joysticks pots work.
I don't know too much about hardware but I opened up my transmitter and took some pics in hopes that someone here can help me out.
I got a digital multi-meter and measured those 3 solder pins on the PCB and got 3.3 V. I don't know what was going on in the PCB but probing the region at the joystick's location gave 3.3V so it must mean the logic level TX operates on is 3.3 V. Each joystick can move up/down/left/right. Do I need 4 digital pots? What valued pots and resistors do I need to simulate the joysticks with arduino?
Here is the attached pics:
Here are all the pictures in an easy-to-view album: http://imgur.com/a/4hD7B