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//modified lora library by Sandeep Mistry for TTGO ESP32 Lora
// lora Sender modified by HwThinker
#include <SPI.h>
#include <LoRa.h>
#define SCK     5    // GPIO5  -- lora SCK
#define MISO    19   // GPIO19 -- lora MISO
#define MOSI    27   // GPIO27 -- lora MOSI
#define SS      18   // GPIO18 -- lora CS
#define RST     23   // GPIO23 -- RESET 
#define DI0     26   // GPIO26 -- IRQ(Interrupt Request)
//#define BAND    915E6  // 915MHz sesuaikan dengan  Frekuensi Lora anda
#define BAND    433E6  // 433MHz Sesuaikan dengan  Frekuensi Lora anda
int counter = 0;
 
void setup() {
  Serial.begin(9600); //pastikan terminal serial emulator baudrate 9600 No parity 1 stop Bit
  while (!Serial); //If just the the basic function, must connect to a computer
  
  SPI.begin(SCK, MISO, MOSI, SS);
  LoRa.setPins(SS, RST, DI0);
//  Serial.println("LoRa Sender");
 
  if (!LoRa.begin(BAND)) {
    Serial.println("Starting LoRa failed!");
    while (1);
  }
  Serial.println("LoRa Initial OK!");
}
 
void loop() {
  Serial.print("Sending packet: ");
  Serial.println(counter);
 
  // send packet
  LoRa.beginPacket();
  LoRa.print("hello ");
  LoRa.print(counter);
  LoRa.endPacket();
 
  counter++;
  delay(3000);
}