/*
  AnalogReadSerial
  Reads an analog input on pin 0, prints the result to the serial monitor.
  Graphical representation is available using serial plotter (Tools > Serial Plotter menu)
  Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground.

  This example code is in the public domain.
*/
int ledred=10;
int ledgreen=11;
int ledblue=12;

// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 9600 bits per second:
    
    pinMode (ledred,OUTPUT);
    pinMode(ledgreen,OUTPUT);
    pinMode(ledblue,OUTPUT);
    
  Serial.begin(9600);
    digitalWrite(ledred,LOW);
    digitalWrite(ledgreen,LOW);
    digitalWrite(ledblue,LOW);
    
}

// the loop routine runs over and over again forever:
void loop() {
  // read the input on analog pin 0:
  int sensorValue = analogRead(A0);
  // print out the value you read:
  Serial.println(sensorValue);
  delay(1);        // delay in between reads for stabilit


if ( sensorValue<= 400)

{
    digitalWrite(ledred,LOW);
    digitalWrite(ledgreen,HIGH);
    digitalWrite(ledblue,LOW);


}

else if (sensorValue >400 &&
     sensorValue<=800)

{


        
      digitalWrite(ledred,HIGH);
    digitalWrite(ledgreen,HIGH);
    digitalWrite(ledblue,LOW);  

}

else if (sensorValue>800)

{
     digitalWrite(ledred,HIGH);
    digitalWrite(ledgreen,LOW);
    digitalWrite(ledblue,LOW);


}
    
    else {
    digitalWrite(ledred,LOW);
    digitalWrite(ledgreen,LOW);
    digitalWrite(ledblue,LOW);        
    }

}