Hi,

I am new to loRa technology. I am trying to connect create a LoRa gateway using raspberry pi, which collects and sends the data to loRa node(Arduino& LoRa). I have tried your "socket_transceiver.py" program in raspberry pi.. and I am using the below code for arduino..

but i am not able to see the connection happening in between these two LoRa devices.

I am able to send the socket data using a client tool and raspberry pi able to receive that, but i am not able to confirm whether the raspberry pi transmitting the data via lora or not..

I have tried with connecting two raspberry pi nodes but i am not able to see the data transmission.

Please confirm any other settings/configurations needs to be done in raspberry pi side..

Transmitting lora in 434MHz.

Arduino code:

include // include libraries

include

const int csPin = 7; // LoRa radio chip select const int resetPin = 6; // LoRa radio reset const int irqPin = 1; // change for your board; must be a hardware interrupt pin

String outgoing; // outgoing message

byte msgCount = 0; // count of outgoing messages byte localAddress = 0xBB; // address of this device byte destination = 0xFF; // destination to send to long lastSendTime = 0; // last send time int interval = 2000; // interval between sends

void setup() { Serial.begin(9600); // initialize serial while (!Serial);

Serial.println("LoRa Duplex");

// override the default CS, reset, and IRQ pins (optional) LoRa.setPins(csPin, resetPin, irqPin);// set CS, reset, IRQ pin

if (!LoRa.begin(915E6)) { // initialize ratio at 915 MHz Serial.println("LoRa init failed. Check your connections."); while (true); // if failed, do nothing }

Serial.println("LoRa init succeeded."); }

void loop() { if (millis() - lastSendTime > interval) { String message = "HeLoRa World!"; // send a message sendMessage(message); Serial.println("Sending " + message); lastSendTime = millis(); // timestamp the message interval = random(2000) + 1000; // 2-3 seconds }

// parse for a packet, and call onReceive with the result: onReceive(LoRa.parsePacket()); }

void sendMessage(String outgoing) { LoRa.beginPacket(); // start packet LoRa.write(destination); // add destination address LoRa.write(localAddress); // add sender address LoRa.write(msgCount); // add message ID LoRa.write(outgoing.length()); // add payload length LoRa.print(outgoing); // add payload LoRa.endPacket(); // finish packet and send it msgCount++; // increment message ID }

void onReceive(int packetSize) { if (packetSize == 0) return; // if there's no packet, return

// read packet header bytes: int recipient = LoRa.read(); // recipient address byte sender = LoRa.read(); // sender address byte incomingMsgId = LoRa.read(); // incoming msg ID byte incomingLength = LoRa.read(); // incoming msg length

String incoming = "";

while (LoRa.available()) { incoming += (char)LoRa.read(); }

if (incomingLength != incoming.length()) { // check length for error Serial.println("error: message length does not match length"); return; // skip rest of function }

// if the recipient isn't this device or broadcast, if (recipient != localAddress && recipient != 0xFF) { Serial.println("This message is not for me."); return; // skip rest of function }

// if message is for this device, or broadcast, print details: Serial.println("Received from: 0x" + String(sender, HEX)); Serial.println("Sent to: 0x" + String(recipient, HEX)); Serial.println("Message ID: " + String(incomingMsgId)); Serial.println("Message length: " + String(incomingLength)); Serial.println("Message: " + incoming); Serial.println("RSSI: " + String(LoRa.packetRssi())); Serial.println("Snr: " + String(LoRa.packetSnr())); Serial.println(); }

mayeranalytics / pySX127x

Not able to transmit or receive data using "Socket_transceiver.py" with another lora connected with Arduino. #25

include // include libraries

include