Datasheet

That's pretty much the basics of it! Lets take a look at the examples so you know how to adapt to your own radio

network

Radio Freq. Config

Each radio has a frequency that is configurable in software. You can actually tune outside the recommended

frequency, but the range won't be good. 900 MHz can be tuned from about 850-950MHz with good performance. 433

MHz radios can be tuned from 400-460 MHz or so.

For all radios they will need to be on the same frequency. If you have a 433MHz radio you will want to stick to 433. If

you have a 900 Mhz radio, go with 868 or 915MHz, just make sure all radios are on the same frequency

Configuring Radio Pinout

At the top of the sketch you can also set the pinout. The radios will use hardware SPI, but you can select any pins for

RFM69_CS (an output), RFM_IRQ (an input) and RFM_RST (an output). RFM_RST is manually used to reset the radio at

the beginning of the sketch. RFM_IRQ must be an interrupt-capable pin. Check your board to determine which pins

you can use!

Also, an LED is defined.

For example, here is the Feather 32u4 pinout

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

#define RF69_FREQ 915.0

#if defined (__AVR_ATmega32U4__) // Feather 32u4 w/Radio

#define RFM69_CS 8

#define RFM69_INT 7

#define RFM69_RST 4

#define LED 13

#endif

https://learn.adafruit.com/adafruit-feather-32u4-radio-with-rfm69hcw-

module

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