[arduino code examples for A6v3]-11 SX1278 LoRA wireless receiver and transmitter

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SX1278  Transmitter:

Code:

#include <LoRa.h>
#include <SPI.h>

#define ss 38
#define rst 42
#define dio0 41

int counter = 0;

void setup()
{
  Serial.begin(115200);
  while (!Serial);
  Serial.println("LoRa Sender");

  LoRa.setPins(ss, rst, dio0);    //setup LoRa transceiver module
 
  while (!LoRa.begin(433E6))     //433E6 - Asia, 866E6 - Europe, 915E6 - North America
  {
    Serial.println(".");
    delay(500);
  }
  LoRa.setSyncWord(0xA5);
  Serial.println("LoRa Initializing OK!");
}

void loop()
{
  Serial.print("Sending packet: ");
  Serial.println(counter);

  LoRa.beginPacket();   //Send LoRa packet to receiver
  LoRa.print("hello ");
  LoRa.print(counter);
  LoRa.endPacket();

  counter++;

  delay(2000);
}

SX1278 Receiver:

Code:

#include <LoRa.h>
#include <SPI.h>

#define ss 38
#define rst 42
#define dio0 41

void setup()
{
  Serial.begin(115200);
  while (!Serial);
  Serial.println("LoRa Receiver");

  LoRa.setPins(ss, rst, dio0);    //setup LoRa transceiver module

  while (!LoRa.begin(433E6))     //433E6 - Asia, 866E6 - Europe, 915E6 - North America
  {
    Serial.println(".");
    delay(500);
  }
  LoRa.setSyncWord(0xA5);
  Serial.println("LoRa Initializing OK!");
}

void loop()
{
  int packetSize = LoRa.parsePacket();    // try to parse packet
  if (packetSize)
  {
   
    Serial.print("Received packet '");

    while (LoRa.available())              // read packet
    {
      String LoRaData = LoRa.readString();
      Serial.print(LoRaData);
    }
    Serial.print("' with RSSI ");         // print RSSI of packet
    Serial.println(LoRa.packetRssi());
  }
}