/* Fire Fighting Robot Uses 3 Flame Sensors & Water Pump Author: Study For Next */ // Sensor Pins #define LEFT_S A0 #define FRONT_S A1 #define RIGHT_S A2 // Pump Pin #define PUMP 9 void setup() { pinMode(LEFT_S, INPUT); pinMode(FRONT_S, INPUT); pinMode(RIGHT_S, INPUT); pinMode(PUMP, OUTPUT); // Motor pins setup... } void loop() { int l = digitalRead(LEFT_S); int f = digitalRead(FRONT_S); int r = digitalRead(RIGHT_S); if (f == LOW) { // Fire Detected Front stopBot(); digitalWrite(PUMP, HIGH); // Spray Water delay(500); } else if (l == LOW) { // Fire Left turnLeft(); digitalWrite(PUMP, LOW); } else if (r == LOW) { // Fire Right turnRight(); digitalWrite(PUMP, LOW); } else { stopBot(); // No Fire digitalWrite(PUMP, LOW); } } // Note: IR Flame sensors give LOW (0) when fire is detected.