// These two Pin Use for INPUT;
int Push_button_Led = 8;
int Push_button_Buzz = 9;

int Led_Pin = 10;
int Buzz_Pin = 11;
int Led_bright = 0;

int Led_val;
int buzz_val;
int delay_T = 500;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(Push_button_Led, INPUT);
  pinMode(Push_button_Buzz, INPUT);
  pinMode(Led_Pin, OUTPUT);
  pinMode(Buzz_Pin, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  Led_val = digitalRead(Push_button_Led);
  buzz_val = digitalRead(Push_button_Buzz);

  Serial.print("  LED Value = ");
  Serial.print(Led_val);
  Serial.print("       ");
  Serial.print("BUZZER Value = ");
  Serial.println(buzz_val);

  if (Led_val == 0) {
    Led_bright = Led_bright + 5;
  } else if (buzz_val == 0) {
    Led_bright = Led_bright - 5;
  }

  if (Led_bright > 255) {
    Led_bright = 255;
    digitalWrite(Buzz_Pin, HIGH);
    delay(delay_T);
    digitalWrite(Buzz_Pin, LOW);
  } else if (Led_bright < 0) {
    Led_bright = 0;
    digitalWrite(Buzz_Pin, HIGH);
    delay(delay_T);
    digitalWrite(Buzz_Pin, LOW);
  }

  analogWrite(Led_Pin, Led_bright);

  Serial.print("LED_Brightness = is ");
  Serial.print(Led_bright);
  delay(delay_T);
}