Lora Range SX1278 - Printable Version

Code:

#include "Arduino.h"

#include "PCF8574.h"

#include <RTClib.h>

#include <Wire.h>

#include <LoRa.h>

#include <SPI.h>

#include <WiFi.h>



#define ss 5

#define rst 21

#define dio0 2



void setup() {



  Serial.begin(115200);

  WiFi.mode(WIFI_STA);

  

  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!");

  Dwin_hmi.begin(115200);

  LoRa.setPins(ss, rst, dio0);



  pcf8574.pinMode(P0, OUTPUT);

  pcf8574.pinMode(P1, OUTPUT);

  pcf8574.pinMode(P2, OUTPUT);

  pcf8574.pinMode(P3, OUTPUT);

  pcf8574.pinMode(P4, OUTPUT);

  pcf8574.pinMode(P5, OUTPUT);



  Serial.print("Init pcf8574...");



  if (pcf8574.begin()){

    Serial.println("OK");

  }else{

    Serial.println("NO");

  }



  pcf8574.digitalWrite(P0, HIGH);

  pcf8574.digitalWrite(P1, HIGH);

  pcf8574.digitalWrite(P2, HIGH);

  pcf8574.digitalWrite(P3, HIGH);

  pcf8574.digitalWrite(P4, HIGH);

  pcf8574.digitalWrite(P5, HIGH);



}



void loop() {



  LoRa.beginPacket();   //Send LoRa packet to receiver

  LoRa.print("LP01");

  LoRa.endPacket();

  Serial.println("Sending packet LP0: 1 ");



}

Code:

#include "Arduino.h"

#include "PCF8574.h"

#include <RTClib.h>

#include <Wire.h>

#include <LoRa.h>

#include <SPI.h>

#include <MCP23017.h>



#define ss 5

#define rst 14

#define dio0 21



void setup() {



  Serial.begin(115200);

  Serial1.begin(9600,SERIAL_8N1,13,12);



  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() {



  //Serial1.write(0x01);

  //delay(20);

  //Serial1.flush();

  //delay(15);



  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);



      if (LoRaData == "LP01") {

        pcf8574.digitalWrite(P0, HIGH);

      }



      if (LoRaData == "LP00") {

        pcf8574.digitalWrite(P0, LOW);

      }

      

    }

    Serial.print("' with RSSI ");         // print RSSI of packet

    Serial.println(LoRa.packetRssi());

  }



}