#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C a(0x27,16,2);
int b;
void setup() {
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, INPUT_PULLUP);
pinMode(5, INPUT_PULLUP);
// put your setup code here, to run once:
a.init();
a.backlight();
a.print("projek antrian");
}
void loop() {
if(digitalRead(5)==0){
a.clear();
b++;
digitalWrite(3, HIGH);
a.setCursor(0,0);
a.print("nomor ke ");a.print(b);
delay(250);
digitalWrite(3, LOW);
}
if(b>500|digitalRead(4)==0){
b=0;
digitalWrite(2, HIGH);
a.clear();
a.setCursor(0,0);
a.print("antrian kereset");
a.setCursor(0,1);
a.print("ke ");
a.print(b);
delay(250);
digitalWrite(2,LOW);}
// put your main code here, to run repeatedly:
}