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line_follower_robot.ino
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line_follower_robot.ino
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/*------ Arduino Line Follower Code----- */
/*----- jeyakumar project--- */
/* README
Configure the pins as per the setup or change the pin configuration according to your setup before proceeding
code follows black line in white surface
*/
#define LS 2 // left sensor
#define RS 3 // right sensor
#define LM1 4 // left motor
#define LM2 5 // left motor
#define RM1 6 // right motor
#define RM2 7 // right motor
void setup()
{
pinMode(LS, INPUT);
pinMode(RS, INPUT);
pinMode(LM1, OUTPUT);
pinMode(LM2, OUTPUT);
pinMode(RM1, OUTPUT);
pinMode(RM2, OUTPUT);
}
void loop()
{
if(digitalRead(LS) && digitalRead(RS)) // Move Forward
{
digitalWrite(LM1, HIGH);
digitalWrite(LM2, LOW);
digitalWrite(RM1, HIGH);
digitalWrite(RM2, LOW);
}
if(!(digitalRead(LS)) && digitalRead(RS)) // Turn right
{
digitalWrite(LM1, LOW);
digitalWrite(LM2, LOW);
digitalWrite(RM1, HIGH);
digitalWrite(RM2, LOW);
}
if(digitalRead(LS) && !(digitalRead(RS))) // turn left
{
digitalWrite(LM1, HIGH);
digitalWrite(LM2, LOW);
digitalWrite(RM1, LOW);
digitalWrite(RM2, LOW);
}
if(!(digitalRead(LS)) && !(digitalRead(RS))) // stop
{
digitalWrite(LM1, LOW);
digitalWrite(LM2, LOW);
digitalWrite(RM1, LOW);
digitalWrite(RM2, LOW);
}
}