path remembering car

Projects Programming
11

PaulS:
Simple: Delete this line:

  attachInterrupt(RIGHT, RwheelSpeed, CHANGE);   //init the interrupt mode for the digital pin 3

If you mean how can you use another pin as the external interrupt pin, you'd need to rewire the ATMega328 chip internally. I'm not capable of doing that, and I have my doubts about you.

You could use a Mega, which has more external interrupt pins, and different pins.

Are there really 4 independent motors on your robot?

If I delete that line wouldn't I lose the information of the right wheel encoder? And yes the robot has 4 independent motors.