int readpin = A5;
int readvlu;
int vlu;
int led = 13;
void setup() {
  // put your setup code here, to run once:
  pinMode(readpin, INPUT);
  pinMode(led, OUTPUT);
  Serial.begin(9600);


}

void loop() {
  // put your main code here, to run repeatedly:

  readvlu = analogRead(readpin);
  vlu = map(readvlu, 0, 1015, 0, 10);

  if( vlu >= 5){
    digitalWrite(led, HIGH);
  }
  else{
    digitalWrite(led, LOW);
  }
  Serial.println(vlu);
  delay(200);
}