Line Following Robot is an autonomous robot that detects and follows a line drawn on the floor. The path consists of a black line drawn on a white surface.
It is a very simple line follower with 4 phototransistors, Arduino Duemilanove, and inexpensive motors. Here, I am using Polymer Lithium Ion Battery which is not necessary. Two 9 V batteries are good enough.
Sensor Board:
After installing all the electronic components:
Check out the image gallery at the bottom of this page for more pictures!