#include <Wire.h>               //library wire
#include <LiquidCrystal_I2C.h>  //library lcd i2c

LiquidCrystal_I2C lcd(0x27, 16, 6); //atu 0x27

const int pinApi = 12;
const int pinBuzzer = 11;
const int pinLED = 2;

int apiState;

void setup() {
  lcd.begin();
  pinMode(pinApi, INPUT);
  pinMode(pinBuzzer, OUTPUT);
  pinMode(pinLED, OUTPUT);
  lcd.setCursor(0,0);
  lcd.print("SENSOR API");
  delay(1000);
}

void loop() {
  lcd.clear();
  apiState = digitalRead(pinApi);
  if(apiState == LOW){
    digitalWrite(pinBuzzer, HIGH);
    digitalWrite(pinLED, HIGH);
    lcd.setCursor(0,0);
    lcd.print("KEBAKARAN !");
  }else{
    digitalWrite(pinBuzzer, LOW);
    digitalWrite(pinLED, LOW);
    lcd.setCursor(0,0);
    lcd.print("AMAN");
  }
  delay(500);
}