Program/SourceCode LoRa Library for STM32

 Code sumber : https://how2electronics.com/interfacing-lora-sx1278-stm32-sender-receiver/

Pengirim:

#include <SPI.h>

#include <LoRa_STM32.h>

 

#define SS PA4

#define RST PB0

#define DI0 PA1

 

#define TX_P 17

#define BAND 433E6

#define ENCRYPT 0x78

 

int counter = 0;

 

void setup() {

  Serial.begin(115200);

  while (!Serial);

 

  Serial.println("LoRa Sender");

 

  LoRa.setTxPower(TX_P);

  LoRa.setSyncWord(ENCRYPT);

  

  LoRa.setPins(SS, RST, DI0);

  if (!LoRa.begin(BAND))

  {

    Serial.println("Starting LoRa failed!");

    while (1);

  }

}

 

void loop() {

  Serial.print("Sending packet: ");

  Serial.println(counter);

 

  // send packet

  LoRa.beginPacket();

  LoRa.print("hello ");

  LoRa.print(counter);

  LoRa.endPacket();

 

  counter++;

 

  delay(5000);

}

Penerima:

#include <SPI.h>

#include <LoRa_STM32.h>

 

#define SS PA4

#define RST PB0

#define DI0 PA1

 

#define TX_P 17

#define BAND 433E6

#define ENCRYPT 0x78

 

void setup()

{

  Serial.begin(115200);

  while (!Serial);

 

  Serial.println("LoRa Receiver");

  LoRa.setTxPower(TX_P);

  LoRa.setSyncWord(ENCRYPT);

  

  LoRa.setPins(SS, RST, DI0);

  if (!LoRa.begin(BAND))

  {

    Serial.println("Starting LoRa failed!");

    while (1);

  }

}

 

void loop() {

  // try to parse packet

  int packetSize = LoRa.parsePacket();

  if (packetSize) {

    // received a packet

    Serial.print("Received packet '");

 

    // read packet

    while (LoRa.available()) {

      Serial.print((char)LoRa.read());

    }

 

    // print RSSI of packet

    Serial.print("' with RSSI ");

    Serial.println(LoRa.packetRssi());

  }

}