line follower coding

[shirleyz]

actually i not so understand this coding that i post?? for line follower, does this code work????

[skimask]

actually i not so understand this coding that i post?? for line follower, does this code work????

Have you tried it? Does it work? Did you write it or copy/paste it from somewhere?
Not everybody has the same hardware as you do...ok, nobody has the same hardware that you have...and good luck finding somebody to build it since there aren't any schematics posted.