#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
word count;

void setup() {
  // put your setup code here, to run once:
  pinMode(8, INPUT);
  pinMode(9, INPUT);
  pinMode(10, INPUT);
  pinMode(7, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(5, OUTPUT);
  digitalWrite(8,1);
  digitalWrite(9,1);
  digitalWrite(10,1);
  lcd.begin(16,2);
  lcd.clear();
}

void loop() {
  // put your main code here, to run repeatedly:
  lcd.setCursor(0,0);
  lcd.print("ANTRIAN NOMOR:");
  lcd.print(count);
  lcd.print("  ");
  lcd.setCursor(1,1);
  lcd.print("SILAHKAN MAJU");
if(digitalRead(8)==0) {
  count=count+1;
  tone(7, 500);
  digitalWrite(5, LOW);
  digitalWrite(6, HIGH);
  delay(200);
  noTone(7);
  }
if(digitalRead(9)==0 && count>0) {
  count=count-1;
  tone(7, 250);
  digitalWrite(5, HIGH);
  digitalWrite(6, LOW);
  delay(200);
  noTone(7);
  }
if(digitalRead(10)==0) {
  count=0;
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  tone(7, 750);
  delay(200);
  noTone(7);
  }
}