Hello,
How will you make a line follower robot without a microcontroller? Some robotics competitions does not allow students to use Arduino or any other MCU. In that case, how can somebody proceed?
Hello.
That is an interesting design challenge. The most straightforward way is probably to use some analog sensors (one on either side of the line) and run the outputs through a comparator. Then, you can feed the comparator output to a motor driver (or transistor) to drive/stop the motors on the corresponding sides of the robot.
Unfortunately, we do not have any specific guides or resources for designing a robot like that, but I did a quick Internet search and found this write-up from the “International Journal of Electronics and Communication Engineering and Technology” that you might find helpful. This write-up on Instructables also uses a very similar concept.
Brandon
I am surprised. I used LM358 Dual OP-AMP to make a digital line following sensor that I used to make MCU and motor-based Line Follower Robots. Never thought that it was possible to make the full robot keeping the LM358 as the core of the circuit. Thank you.