/* นายภูดิศ สิมทอง ม.5/2 13 */

int LedRED = 12;
int LEDgreen = 11;
int LEDYello = 10;
int LEDOrange = 9;
int smokeA0 = A0;



void setup() {
  Serial.begin(9600);
  pinMode(LedRED, OUTPUT);
  pinMode(LEDgreen, OUTPUT);
  pinMode (LEDYello, OUTPUT);
  pinMode (LEDOrange, OUTPUT);
  pinMode(smokeA0, INPUT);
}

void loop() {
  int analogSensor = analogRead(smokeA0);
  Serial.print("Pin A0: ");
  Serial.println(analogSensor); 

  if (analogSensor >= 250 && analogSensor < 500)  {
    digitalWrite(LedRED, LOW);
    digitalWrite(LEDgreen, LOW);
    digitalWrite(LEDOrange, LOW);
    digitalWrite(LEDYello, HIGH);
    
  }
  else if (analogSensor >= 500 && analogSensor < 750)  {
    digitalWrite(LedRED, LOW);
    digitalWrite(LEDgreen, LOW);
    digitalWrite(LEDOrange, HIGH);
    digitalWrite(LEDYello, LOW);
    
  }
  else if (analogSensor >= 750 && analogSensor < 1023)  {
    digitalWrite(LedRED, HIGH);
    digitalWrite(LEDgreen, LOW);
    digitalWrite(LEDOrange, LOW);
    digitalWrite(LEDYello, LOW);
    
  }
  else  {
    digitalWrite(LedRED, LOW);
    digitalWrite(LEDgreen, HIGH);
    digitalWrite(LEDOrange, LOW);
    digitalWrite(LEDYello, LOW);
  }
  delay(100);
}