#include <SPI.h>
#include <LoRa.h>
#include <Wire.h> 
#include <SD.h>
 
File myFile;
const int pinBuzzer = 7;
const int pinLED = 8;

void setup() 
{
   pinMode(pinBuzzer, OUTPUT);
   pinMode(pinLED, OUTPUT);
  Serial.begin(9600);

  if (!SD.begin(4)) { //tergantung di pin chipselect yang digunakan
    Serial.println("Gagal baca microSD!");
    return;
  }
  Serial.println("Sukses baca kartu microSD!");

  while (!Serial);
  Serial.println("TX");
  if (!LoRa.begin(433E6)) {
    Serial.println("GAGAL");
    while (1);
  }
}
 
void loop() {
  int packetSize = LoRa.parsePacket();
  if (packetSize) 
  {
    Serial.println("Paket Diterima: ");
    while (LoRa.available()) {
      String LoRaData = LoRa.readString();
      Serial.println(LoRaData);
  digitalWrite(pinBuzzer, HIGH);   
  digitalWrite(pinLED, HIGH); 
  delay(200);                      
  digitalWrite(pinBuzzer, LOW);
  digitalWrite(pinLED, LOW);     
  delay(200);                       
  digitalWrite(pinBuzzer, HIGH); 
  digitalWrite(pinLED, HIGH);   
  delay(200);                       
  digitalWrite(pinBuzzer, LOW);
  digitalWrite(pinLED, LOW);     
  delay(1000);                      

      delay(1000);

    myFile = SD.open("coba.txt", FILE_WRITE); //menulis File coba.txt
 
  // jika file sudah berhasil dibuka maka tulis data dimulai
  if (myFile) {
    Serial.println("mencoba nulis data di file coba.txt");
    myFile.println(LoRaData);
    // tutup file
    myFile.close();
    Serial.println("SELESAI!");
  } else {
    // jika gagal print error
    Serial.println("GAGAL TULIS coba.txt");  
    }
    }
  }
}