Proportional line follower (Advanced)
In this recipe, you will make a robot that will track a line quickly. The robot will be able to follow a line which makes corners sharper than 90 degrees using a proportional line follower.
First, you will need to build an attachment to hold the color sensor onto the robot.
Insert an axle that is five modules long into the color sensor. Place bushings onto the axle on either side of the sensor. This is illustrated in the following figure:
Attach the two-pin one-axle cross blocks onto the axle outside the bushings. This is illustrated in the following figure:
Insert 3-module pins into the cross blocks ...