#define newLED 2
#define okLED 4
#define oldLED 6


int analogValue = 0;
float voltage = 0;
int ledDelay = 2000;


void setup() {
  analogRead(EXTERNAL);
  pinMode(newLED, OUTPUT);
  pinMode(okLED, OUTPUT);
  pinMode(oldLED, OUTPUT);


}

void loop() {
  analogValue = analogRead(0);
  voltage = 0.0048*analogValue;
  if ( voltage >= 1.6 )
{
digitalWrite(newLED, HIGH);
delay(ledDelay);
digitalWrite(newLED, LOW);
}
else if ( voltage < 1.6 && voltage > 1.4 )
{
digitalWrite(okLED, HIGH);
delay(ledDelay);
digitalWrite(okLED, LOW);
}
 else if ( voltage <= 1.4 )
{
digitalWrite(oldLED, HIGH);
delay(ledDelay);
digitalWrite(oldLED, LOW);
}

}