The line tracking robot
Recorded by Nokia Lumia 635

HOW IT WORKS
The blue squares are the 3 line trackers.

As you can see, the black line is under the 3 trackers.

②When tracker[a] detects the black line, the robot turns left.

③When tracker[b] detects the black line, the robot turns right.

Those codes were programmed on EasyC V5 for Cortex with version 4.23 configuration.
Main
#include "Main.h"
void main ( void )
{
      int line = 200;
      int a;
      int c;
      while ( 1==1 )
      {
            a = GetAnalogInput ( 1 ) ; 
            c = GetAnalogInput ( 3 ) ;
            if ( a>line )
            {
                  SetMotor ( 10 , -95 ) ;
                  SetMotor ( 10 , 0 ) ;
            }
            if ( c>line )
            {
                  SetMotor ( 1 , 127 ) ;
                  SetMotor ( 1 , 0 ) ;
            }
             else
            {
                  SetMotor ( 1 , 80 ) ;
                  SetMotor ( 10 , -65 ) ;
                  SetMotor ( 1 , 0 ) ;
                  SetMotor ( 10 , 0 ) ;
            }
      }
}
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