#define flame_sensor 4
#define sensorPower 7
#define sensorPin A0
#define trans 8
#define LED1 9
#define LED2 10
#define LED3 11


int val = 0;
int buttonState = 0;

void setup()

{

  Serial.begin(9600);
  pinMode(sensorPower, OUTPUT);
  digitalWrite(sensorPower, LOW);
  pinMode(flame_sensor, INPUT);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(trans, OUTPUT);
  

}


void loop()

{
    int level = readSensor();
    Serial.println(level);
    if (level > 400)
    {
      digitalWrite(LED1, HIGH);
      digitalWrite(LED2, HIGH);
      digitalWrite(LED3, HIGH);
      
    }
    else if (level > 350 && level <= 400)
    {
      digitalWrite(LED1, HIGH);
      digitalWrite(LED2, HIGH);
      digitalWrite(LED3, LOW);
    }
    else if (level < 350 && level > 300)
    {
      digitalWrite(LED1, HIGH);
      digitalWrite(LED2, LOW);
      digitalWrite(LED3, LOW);
    }
    else if (level <= 300)
    {
      digitalWrite(LED1, LOW);
      digitalWrite(LED2, LOW);
      digitalWrite(LED3, LOW);
    }
    int flame_detected = digitalRead(flame_sensor);
     if (flame_detected == LOW && level > 300)
    {
    // turn PUMP on:
    digitalWrite(trans, HIGH);
    } else {
    // turn PUMP off:
    digitalWrite(trans, LOW);
    }
  // Added the delay so that we can see the output of button
  
  delay(100);

}

int readSensor() {
  digitalWrite(sensorPower, HIGH);  // Turn the sensor ON
  delay(10);              // wait 10 milliseconds
  val = analogRead(sensorPin);    // Read the analog value form sensor
  digitalWrite(sensorPower, LOW);   // Turn the sensor OFF
  return val;             // send current reading
}