int potensio = 3;
float value;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  value = analogRead(potensio);
  Serial.print("nilai digitalnya : ");
  Serial.print(value,0);
  Serial.println("     ");
  value = 5*value/1023;
  Serial.print("nilai analognya : ");
  Serial.print(value,3);
  Serial.println(" volt");
  Serial.println("     ");
  Serial.println("     ");
  delay(1000);
}