This line follower robot is a two wheeler robot with 7 IR LEDs. I got the basic concepts from http://www.instructables.com/id/Robot-Line-Follower/. Thanks midhun. I struggled a lot to convert it into PIC 16F877A. However, once converted, I added some more flexibility for the user to adjust speed, suggest turn (in case of junctions), Since the PIC 16F877A's resources are too less, I would like to realize it once again using Arduino Nano.