Datasheet

ManualsBrandsAdafruit ManualsAdafruitRFM95W LoRa Radio Transceiver

#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);

// Blinky on receipt

#define LED 13

void setup()

{

pinMode(LED, OUTPUT);

pinMode(RFM95_RST, OUTPUT);

digitalWrite(RFM95_RST, HIGH);

while (!Serial);

Serial.begin(9600);

delay(100);

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

// manual reset

digitalWrite(RFM95_RST, LOW);

delay(10);

digitalWrite(RFM95_RST, HIGH);

delay(10);

while (!rf95.init()) {

Serial.println("LoRa radio init failed");

while (1);

}

Serial.println("LoRa radio init OK!");

// Defaults after init are 434.0MHz, modulation GFSK_Rb250Fd250, +13dbM

if (!rf95.setFrequency(RF95_FREQ)) {

Serial.println("setFrequency failed");

while (1);

}

Serial.print("Set Freq to: "); Serial.println(RF95_FREQ);

// Defaults after init are 434.0MHz, 13dBm, Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on

// The default transmitter power is 13dBm, using PA_BOOST.

// If you are using RFM95/96/97/98 modules which uses the PA_BOOST transmitter pin, then

// you can set transmitter powers from 5 to 23 dBm:

rf95.setTxPower(23, false);

}

void loop()

{

if (rf95.available())

{

// Should be a message for us now

uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];

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

breakouts

Page 62 of 70