#include <TM1637TinyDisplay.h>

const int CLK = 25;
const int DIO = 26;

int out = 15;
int inn = 2;

TM1637TinyDisplay display(CLK,DIO);


int red = 14;
int green = 13;
int counter = 1;
int buzzer = 12;

void setup() {
  display.setScrolldelay(500);
  display.begin();
  Serial.begin(115200);
  pinMode(buzzer, OUTPUT);
  pinMode(red, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(out, INPUT_PULLUP);
  pinMode(inn, INPUT_PULLUP);
  pinMode(CLK, OUTPUT);
  pinMode(DIO, OUTPUT);
  display.showString("24");
  delay(500);
  display. showString("COUNTER UP & DOWN");
Serial.println("================");
}

void loop() {
  int valuemasuk = digitalRead(out);
  int valuekeluar = digitalRead(inn); 

  display.showNumber(counter - 1);

  if(valuemasuk == LOW){
    if(counter <= 10){
      Serial.println("Orang Masuk");
      Serial.println("tone 100ms & 100Hz");
      Serial.print("Jumlah orang di ruangan : ");
      Serial.println(counter++);
      digitalWrite(green, HIGH);
      digitalWrite(red, LOW);
      tone(buzzer, 200, 100);
      delay(400);
    } else {

      Serial.println("Ruangan Sudah Penuh!!!");
      digitalWrite(green, LOW);
      digitalWrite(red, HIGH);
      delay(400);
    }
  } else if(valuekeluar == LOW){
    if(counter != 1){
     counter--;
      if(counter == 1){
        Serial.println("Ruang Sudah Kosong");
        delay(400);
    } else {
      if(counter <=10){
          Serial.println("Orang Keluar");
          Serial.println("tone 100ms & 1000Hz");
          Serial.print("Jumlah Orang di Ruangan : ");
          Serial.print(counter - 1);
          Serial.println(" Orang");
          digitalWrite(green, HIGH);
          digitalWrite(red, LOW);
          tone(buzzer, 200, 100);
          delay(400);
        }
      }
    }
  }
}