Line follower robot

#define LS 2 // left sensor #define RS 3 // right sensor #define LM1 5 // left motor M1a #define LM2 4 // left motor M2a #define RM1 7 // right motor M2a #define RM2 6 // right motor M2b 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 on line { digitalWrite(LM1, HIGH); digitalWrite(LM2, LOW); digitalWrite(RM1, HIGH); digitalWrite(RM2, LOW); } if (digitalRead(LS) && !(digitalRead(RS))) // turn left by rotationg left motors in forward and right ones in backward direction { digitalWrite(LM1, HIGH); digitalWrite(LM2, LOW); digitalWrite(RM1, LOW); digitalWrite(RM2, HIGH); } if (!(digitalRead(LS)) && digitalRead(RS)) // Turn right by rotating right motors in forward and left ones in backward direction { digitalWrite(LM1, LOW); digitalWrite(LM2, HIGH); digitalWrite(RM1, HIGH); digitalWrite(RM2, LOW); } if (!(digitalRead(LS)) && !(digitalRead(RS))) // Finish line, stop both the motors { digitalWrite(LM1, LOW); digitalWrite(LM2, LOW); digitalWrite(RM1, LOW); digitalWrite(RM2, LOW); } }

• Now Your Robot is ready to follow the black line.