Arduino Lora gateway + Blynk possible?

Hello guys,

I am trying to send the h and t variable values to Blynk could.

But when I put the Blynk code together with the code below, the LoRa communication doesnt work anymore and I assume thats because the use of the SPI for the LoRa device. Do you think it would work on Arduino Mega as it has 3 serial ports?

Or, would be possible to make it work with Arduino Uno using and ethernet shield W5100? If so could you post the recommended changes on the code below?

Thank you very much.

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

float h,t;

void setup() {
  pinMode(7, OUTPUT);
  while (!Serial);

  Serial.println("LoRa Receiver");

  if (!LoRa.begin(915E6)) { //LoRa Frequency @ 915Mhz
    Serial.println("Starting LoRa failed!");
    while (1);
  Serial.println("LoRa init succeeded!");

void loop() {
  // try to parse packet
  int packetSize = LoRa.parsePacket();
  if (packetSize) {
    // received a packet
    Serial.println("Received packet");
    // read packet
    while (LoRa.available()) {
      //Read and store received values
      h =;
      t =;
    // print SNR and RSSI of packet
    Serial.print("SNR= "); //As higher the number, better the signal (higher than 7 is perfect)
    Serial.print (LoRa.packetSnr());
    Serial.print(" RSSI= "); //As higher the number, better the signal (0 = Very good signal and -80 = not so good)  
    //Toggle the LED when a packet is received
    digitalWrite(7, HIGH);   // turn the LED on (HIGH is the voltage level)
    delay(10);                       // wait for a second
    digitalWrite(7, LOW);    // turn the LED off by making the voltage LOW

If you use LoRa RAW datagrams (as in your example sketch), you can easily just use another such board to intercept those packets, decode and forward them to Blynk Cloud. Simple!

I agree, just asked if there was something different… I will do that thanks…

I am trying to get the data from one dht22 on one card and using Lora board to send to the other esp32 lora board but I am not able to do the second part, did you guys succeed or could you give me some hint how to do? Thank you!

please post your blynk code else we can’t help you