int sensor = 0; 
float value, cahaya;

void setup() {
  Serial.begin(9600);
}

void loop() {
  value = analogRead(sensor);
  Serial.print("digital : ");
  Serial.print(value,3);
  Serial.println("    ");
  cahaya = value*5/1023;
  Serial.print("cahaya : ");
  Serial.print(cahaya,3);
  Serial.println("    ");
  Serial.println("    ");
    delay(1000);
}