// 13 yg hijau pinBt[0]
// 14 yg kuning
const int pinBt[2] = {13, 14};
// pin led support PWM (15)
const int pinLed = 16; //15;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  // Serial.println("Hello, ESP32!");

  pinMode(pinBt[0], INPUT); // atau INPUT_PULLUP
  pinMode(pinBt[1], INPUT); // atau INPUT_PULLUP
  pinMode(pinLed, OUTPUT);

  // digitalWrite(pinBt[0], HIGH);
  // digitalWrite(pinBt[1], HIGH);
}

int brightness = 0;
void loop() {
  digitalWrite(pinBt[0], HIGH);
  digitalWrite(pinBt[1], HIGH);
  // put your main code here, to run repeatedly:
  // delay(10); // this speeds up the simulation
  if (digitalRead(pinBt[0]) == LOW){
    brightness++;
    Serial.println("kecerahan dinaikkan");

  } else if ( digitalRead(pinBt[1]) == LOW ){
    brightness--;
    Serial.println("kecerahan diturunkan");
  }

  brightness = constrain(brightness, 0, 255);

  analogWrite(pinLed, brightness);

  // digitalWrite(pinBt[0], HIGH);
  // digitalWrite(pinBt[1], HIGH);
  delay(20);
}


// const int pinBt[2] = {2, 3};
// // pin 9 support PWM (Arduino Uno)
// const int pinLed = 9;

// void setup(){
//   pinMode(pinBt[0], INPUT_PULLUP);
//   pinMode(pinBt[1], INPUT_PULLUP);
//   pinMode(pinLed, OUTPUT);

//   digitalWrite(pinBt[0], HIGH);
//   digitalWrite(pinBt[1], HIGH);
// }

// int brightness = 0;
// void loop(){
//   if( digitalRead(pinBt[0]) == LOW ){
//     brightness++;

//   } else if( digitalRead(pinBt[1] == LOW )){
//     brightness--;

//   }

//   int  x = constrain(brightness, 0, 255);

//   analogWrite(pinLed, x);

//   delay(20);
// }