Lora Walkie Talkie

Made by sabinandrei / 3D Printing / Communication / Displays / Voice

About the project

In this project we would use the LoRa SX1278 module to create a digital walkie talkie

Project info

Difficulty: Moderate

Estimated time: 1 hour

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

	SX1278IMLTRT RF Transceiver SINGLE CHIP 2 BANDS TRANCEIVER	x 1
	Arduino Uno	x 1
	jumper cables	x 1
	NHD-0216AW-IB3 OLED Displays & Accessories OLED 2 X 16 CHAR I2C Thru Hole	x 1
	Project Box	x 1

Hand tools and fabrication machines

dremel we will use this to make the case

x 1

Story

This projects represents a method to use a widely-available to make a transceiver that will have high bandwidth and is also low energy.

Schematics, diagrams and documents

Code

this is the main code that will run on the arduino for receiving

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

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

  Serial.println("LoRa Receiver");

  if (!LoRa.begin(915E6)) {
    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());
  }
}

this is the main code that will run on the arduino to send data.

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

int counter = 0;

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

  Serial.println("LoRa Sender");

  if (!LoRa.begin(915E6)) {
    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);
}