the starting point
As a starting point for this discussion, I’ll use the LineFollower program from Chapter 6, as shown in Figure 18-1. This program allows the TriBot to follow a line, but it works only if the robot moves slowly.
Figure 18-1. The original LineFollower program
Although the Light Sensor is used in Figure 18-1 and in the images in this chapter, the program will work just as well with the Color Sensor. As we proceed, I’ll give instructions for using either sensor.
To follow a line, the Light Sensor (or Color Sensor) should be mounted on the front of the TriBot pointing downward, as shown in Figure 18-2.
Figure 18-2. Mounting the sensor on ...
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