Datasheet

https://adafru.it/mHC

Uncompress the zip and find the folder named RadioHead and check that the RadioHead folder contains

RH_RF95.cpp and RH_RF95.h (as well as a few dozen other files for radios that are supported)

Place the RadioHead library folder your arduinosketchfolder/libraries/ folder.

You may need to create the libraries subfolder if its your first library. Restart the IDE.

We also have a great tutorial on Arduino library installation at:

http://learn.adafruit.com/adafruit-all-about-arduino-libraries-install-use (https://adafru.it/aYM)

Basic RX & TX example

Lets get a basic demo going, where one Arduino transmits and the other receives. We'll start by setting up the

transmitter

Transmitter example code

This code will send a small packet of data once a second to node address #1

Load this code into your Transmitter Arduino!

// LoRa 9x_TX

// -*- mode: C++ -*-

// Example sketch showing how to create a simple messaging client (transmitter)

// with the RH_RF95 class. RH_RF95 class does not provide for addressing or

// reliability, so you should only use RH_RF95 if you do not need the higher

// level messaging abilities.

// It is designed to work with the other example LoRa9x_RX

#include <SPI.h>

#include <RH_RF95.h>

#define RFM95_CS 10

#define RFM95_RST 9

#define RFM95_INT 2

// Change to 434.0 or other frequency, must match RX's freq!

#define RF95_FREQ 915.0

// Singleton instance of the radio driver

RH_RF95 rf95(RFM95_CS, RFM95_INT);

void setup()

{

pinMode(RFM95_RST, OUTPUT);

digitalWrite(RFM95_RST, HIGH);

while (!Serial);

Serial.begin(9600);

delay(100);

Serial.println("Arduino LoRa TX Test!");

https://learn.adafruit.com/adafruit-rfm69hcw-and-rfm96-rfm95-rfm98-lora-packet-padio-

breakouts

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