Hi everyone I am working on a rc car transmitter hack where I can control a RC car with a controller with considerable range (later plans of fpv) xbox 360 controller ---> xbox 360 reciever ---> usb hosting shield + arduino ---> 2 channel radio transmitter ---> rc car
the RC transmitter uses 2 variable resistors as joysticks. My plan is to remove the joysticks and have the arduino acting as the variable resistors.
how do i make the arduino act as variable resistors? can i just use pwm or do i need a low-pass filter? and how do i wire it to the arduino? as i believe a variable resistor is read be passing electricity from one side to the other and the middle lead reads the resistance, do i just need a common ground or