Line Following Robot Submitted by Joy Debnath ID:121-33- 836 Sec: A
Jun 15, 2015
Line Following Robot
Submitted by
Joy Debnath
ID:121-33-836
Sec: A
Introduction A line tracker mostly consists of an infrared
light sensor and an infrared LED. It functions by illuminating a surface with infrared light; the sensor then picks up the reflected infrared radiation and, based on its intensity, determines the reflectivity of the surface in question. Lightly colored surfaces will reflect more light than dark surfaces; therefore, lightly colored surfaces will appear brighter to the sensor. This allows the sensor to detect a dark line on a pale surface, or a pale line on a dark surface.
ComponentsHigh power LED
(5mm) - 2 to 4LDR's -2 to 4Preset 20k -2 to 4220 Ohm Resistors -2
to 4L293d -1Geared motors -24.8V NiMh
rechargeable battery
Circuit Diagram
Circuit diagram on breadboard
IC Configure
Line Tracking
AdvantagesRobot movement is automatic.Fit and Forget system.Used for long distance applications.Defense applications.Used in home, industrial automation.Cost effective.
The end