RFM69HCW Hookup Guide

Contributors:

MikeGrusin

Resources and Going Further

For this tutorial, we connected both of the nodes to the same computer to make it easy to send messages from one node to another. But, remember that when you do your own projects, your nodes might be attached to weather stations, garage doors, Halloween decorations, drones, robots, your cat... the sky's the limit!

The example code has comments that explain how messages are sent and received. Feel free to use it as a basis for the code in your projects.

For advanced usage, you can also check out the other examples and source code in the library. The RFM69.h and RFM69.cpp files list all of the library functions and tell you a little bit about what they do.

For more information, check out the links below.

This transceiver is great for projects like building a remote kill switch to terminate power to your project when your robot goes... sentient.

How to Build a Remote Kill Switch

May 31, 2016

Learn how to build a wireless controller to kill power when things go... sentient.

For more wireless fun, check out these other great SparkFun tutorials:

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How to hookup and program (in Arduino!) the nRF52832 Breakout -- a development board for Nordic's BLE/ANT/2.4GHz system on chip.

Sunrise Machine with the Tessel 2

Are you to sleepy to enjoy a sunrise on a brisk morning? Yeah...us too! No worries, with a Webcam, a Tessel 2 and a bit of code you can sleep in and catch the sunrise at your leisure with the Sunrise Machine.

smôl ARTIC R2 Hookup Guide

Small in size, small on current draw. It's a smôl world! This guide will get you up and running with the smôl ARTIC R2 satellite communication Peripheral Board.

Qwiic Kit for Raspberry Pi V2 Hookup Guide

Get started with the SGP40, BME280, VCNL4040, and microOLED via I2C using the Qwiic system and Python on a Raspberry Pi! Measure VOC Index, light, temperature, humidity, and pressure from the environment. Then display them on the microOLED, serial terminal, or the cloud with Cayenne!

Are you looking to build a robot controlled by the RF69HCW? Try looking at these blog posts.