Control Line Follower ROBOT Controlled by 2051 | Controller Circuit

Saturday, November 24, 2012

Control Line Follower ROBOT Controlled by 2051

This Robot use two motors control  rear wheels and the single front wheel is free. It has 4-infrared sensors on the bottom for detect black tracking tape, when the sensors detected black color, output of  comparator, LM324 is low logic and the other the output is high.
Microcontrollor AT89C2051 and H-Bridge driver L293D were used  to control direction and speed of motor.

Fig 1. Circuit diagram of my Robot.

 Fig 2. Circuit diagram of Infrared sensors and comparators.


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