#include <TM1637TinyDisplay.h>
const int CLK = 26;
const int DIO = 27;

int inn = 4;
int out = 2;

TM1637TinyDisplay display(CLK,DIO);

int counter = 1;
int buzzer = 13;
int ledhijau = 12;
int ledmerah = 14;


void setup() {
  display.setScrolldelay(500);
  display.begin();
  Serial.begin(115200);
  pinMode(buzzer, OUTPUT);
  pinMode(ledmerah, OUTPUT);
  pinMode(ledhijau, OUTPUT);
  pinMode(out, INPUT_PULLUP);
  pinMode(inn, INPUT_PULLUP);
  pinMode(CLK, OUTPUT);
  pinMode(DIO, OUTPUT);
  display.showString("2215374007");
  delay(500);
  display.showString("LATIHAN 5 COUNTER");
Serial.println("================");
}

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

  display.showNumber(counter - 1);

  if(valuemasuk == LOW){
    if(counter <= 10){
      
      Serial.print("Jumlah orang dalam ruangan : ");
      Serial.println(counter++);
      Serial.println("Orang Masuk");
      digitalWrite(ledhijau, HIGH);
      digitalWrite(ledmerah, LOW);
      tone(buzzer, 100, 100);
      delay(500);
    } else {

      Serial.println("Ruangan Sudah Penuh!!!");
      digitalWrite(ledhijau, LOW);
      digitalWrite(ledmerah, HIGH);
      delay(500);
    }
  } else if(valuekeluar == LOW){
    if(counter != 1){
     counter--;
      if(counter == 1){
        Serial.println("Ruangan Sudah Kosong!!!");
        delay(500);
    } else {
      if(counter <=10){
          Serial.println("Orang Keluar");
          Serial.print("Jumlah Orang dalam Ruangan : Sisa ");
          Serial.print(counter - 1);
          Serial.println(" Orang");
          digitalWrite(ledhijau, HIGH);
          digitalWrite(ledmerah, LOW);
          tone(buzzer, 100, 1000);
          delay(500);
        }
      }
    }
  }
}