Datasheet

Now open up the Serial console on the receiver, while also checking in on the transmitter's serial console. You should

see the receiver is...well, receiving packets

You can see that the library example prints out the hex-bytes received 48 65 6C 6C 6F 20 57 6F 72 6C 64 20 23 30 0 20 20

20 20 0 , as well as the ASCII 'string' Hello World . Then it will send a reply.

And, on the transmitter side, it is now printing that it got a reply after each transmisssion And hello back to you because

uint8_t len = sizeof(buf);

if (rf95.recv(buf, &len))

{

digitalWrite(LED, HIGH);

RH_RF95::printBuffer("Received: ", buf, len);

Serial.print("Got: ");

Serial.println((char*)buf);

Serial.print("RSSI: ");

Serial.println(rf95.lastRssi(), DEC);

// Send a reply

uint8_t data[] = "And hello back to you";

rf95.send(data, sizeof(data));

rf95.waitPacketSent();

Serial.println("Sent a reply");

digitalWrite(LED, LOW);

}

else

{

Serial.println("Receive failed");

}

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

breakouts

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