const int pinPot = A0;
const int pinLed = 9;
void setup() {
  pinMode(pinPot, INPUT);
  pinMode(pinLed, OUTPUT);
  Serial.begin(9600);
}
int sensor = 0;
int brightness = 0;
int levelsensor= 0;
void loop() {
  //baca nilai kaki A0 (sensor, potensiometer)
  sensor = analogRead(pinPot);
  //konversi nilai 0-1023 (Analog) menjadi 0-255 (PWM)
  brightness = map(sensor, 0, 1023, 0, 255);
  levelsensor = map(sensor, 0, 1023, 0, 100);
  // tentukan brightness LED dengan PWM
  analogWrite(pinLed, brightness);
  Serial.print("Nilai Sensor : ");
  Serial.println(sensor);
  Serial.print("Nilai PWM : ");
  Serial.println(brightness);
  Serial.print("Level Sensor : ");
  Serial.println(levelsensor);
  Serial.print("%");
  delay(500);
}