#include <SPI.h>
#include <LoRa.h>
int ledPin = 3;
//define the pins used by the transceiver module
#define ss 6
#define rst 7
#define dio0 8

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
     LoRa.setPins(ss, rst, dio0);
  while (!Serial);

  Serial.println("LoRa Receiver");
  //setup LoRa transceiver module

  
  if (!LoRa.begin(866E6)) {
    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 '");
 digitalWrite(ledPin, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100);  
digitalWrite(ledPin, LOW);
    // read packet
    while (LoRa.available()) {
      Serial.print((char)LoRa.read());
    }

    // print RSSI of packet
    Serial.print("' with RSSI ");
    Serial.println(LoRa.packetRssi());
                     // wait for a second
     
  }
}