Help with QRD1113 (Line Tracking Robot)

[arahman]

hello every one

i am working on a project about line follower robot, i use the QRD1113 as
the line sensor (detect the black line) .

but i have a problem with the sensor ,i can not make it detect only the black line because it can not recognize black line from the whit line.


help me please

 

[blueroomelectronics]

That's three crosspostings.