Battery Tester

int greenLed=3;
int redLed=4;
int yellowLed=6;

int analogValue=0;
float voltage=0;



void setup() {
 
pinMode(greenLed,OUTPUT);
pinMode(redLed,OUTPUT);
pinMode(yellowLed,OUTPUT);
}

void loop() {
  analogValue=analogRead(A0);
  voltage=0.0048*analogValue;
  if(voltage>=1.6)
  digitalWrite(redLed,HIGH);
  else if(voltage>1.4 && voltage<1.6)
  digitalWrite(yellowLed,HIGH);
  else if(voltage<=1.4)
  digitalWrite(greenLed,HIGH);

  delay(50);
  digitalWrite(redLed,LOW);
  digitalWrite(yellowLed,LOW);
  digitalWrite(greenLed,LOW);
  

}