Line following robot moving backward

Community General Discussions
1

Hello,

I am working on line following robot with 2 wheels drive and one sensor in front. When the robot moves in forward direction it can follow the line, but the problem when robot moves in reverse direction (sensor behind two drive wheels), robot can not follow line like forward moving. I am using PID controller.

So, could anyone please help me with this. Can the robot follow the line when sensor behind the wheels? and what i need to modify the controller so that it can follow the line?
Thank you!

2

Are you using a line following kit, or is this a custom setup?
Note that in reverse motion, you’ll need to change how the robot reacts to the line, since the motors are now rotating in the opposite directions.

3

You need the sensors “out front” in order to steer properly. Maybe you could add a second sensor on the rear. More coding would be required, of course.

Alan KM6VV