Edited to include more information.
Basic aim of this project:
I have an RC vehicle that I want to be able to control both with it's paired remote and with some other device (This part is TBC and doesn't effect my query at this time.
Both the steering and throttle on the RC handset are basic 5K potentiometers. The idea I am researching now is to disconnect the potentiometers from the handset controller and connect them to an arduino housed within the handset.
In normal opperation the arduino would take these signals in from the potentiometers and then send the same signal back to the handset controller but in a secondary mode it would ignore the signals from the potentiometers and send it's own signals received wirelessly from this other controller that I haven't finalised designs on.
So my question is how to I use an Arduino to simulate the signal of a 5K potentiometer?
Should I look at getting a 5K digital potentiometer that can be controlled fron the Arduino or can the arduino itself simulate a potentiometer via PWM? Or is there some other option?
Thanks,