Thanks for your explanation @nick06 ! This sensor is a digital way of knowing if the color is black or white (only returns 1 or 0). And you adjust the parameter with the built-in potentiometer. You still need to implement your line following logic and integrate that with your movement logic to be able to follow a line.
What is forbidden in the rules is using sensors that will do all these operations for you (for example, you just plug them in, connect the motors to the sensor and it will start following the line automatically).
Hope this makes it clearer to understand which kind of sensors are allowed and which ones doesn’t!
Regards,
Diego Garza Rodriguez
2023 Committee