Line-Follower/Basic_Code.ino at master · jetfreakk/Line-Follower · GitHub

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#define LS 2
#define RS 3

#define LM1 4
#define LM2 5
#define RM1 6
#define RM2 7


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);
  }
}