By now, you know how to connect a robot to a control application through a Wi-Fi network using ESP8266. In this chapter, you will go further to build a robot that follows a line, either a black line on a white surface or a white line on a black surface. Line-following robots usually use an array of IR (Infrared) sensors to detect the line.
In this chapter, you will learn the following topics:
- Assembling the Zumo Chassis Kit
- Connecting SparkFun Line Follower Array with Zumo chassis
- Connecting electronics to detect the line
- Building a line-following course
- Writing an Arduino sketch to control motors according to sensor values
