This is the SparkFun fork of the RadioHead library by Mike McCauley. The original library can be found here: http://www.airspayce.com/mikem/arduino/RadioHead/

This is the RadioHead Packet Radio library for embedded microprocessors. It provides a complete object-oriented library for sending and receiving packetized messages via a variety of common data radios and other transports on a range of embedded microprocessors.

The version of the package that this documentation refers to can be downloaded from http://www.airspayce.com/mikem/arduino/RadioHead/RadioHead-1.41.zip You can find the latest version at http://www.airspayce.com/mikem/arduino/RadioHead You can also find online help and discussion at http://groups.google.com/group/radiohead-arduino Please use that group for all questions and discussions on this topic. Do not contact the author directly, unless it is to discuss commercial licensing. Before asking a question or reporting a bug, please read: http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/How_to_ask_a_software_question http://www.catb.org/esr/faqs/smart-questions.html http://www.chiark.greenend.org.uk/~shgtatham/bugs.html

Overview

RadioHead consists of 2 main sets of classes: Drivers and Managers.

Drivers provide low level access to a range of different packet radios and other packetized message transports. Managers provide high level message sending and receiving facilities for a range of different requirements. Every RadioHead program will have an instance of a Driver to provide access to the data radio or transport, and a Manager that uses that driver to send and receive messages for the application. The programmer is required to instantiate a Driver and a Manager, and to initialise the Manager. Thereafter the facilities of the Manager can be used to send and receive messages.

It is also possible to use a Driver on its own, without a Manager, although this only allows unaddressed, unreliable transport via the Driver's facilities. In some specialised use cases, it is possible to instantiate more than one Driver and more than one Manager. A range of different common embedded microprocessor platforms are supported, allowing your project to run on your choice of processor. Example programs are included to show the main modes of use.

• /examples - Example sketches for the library (.ino). Run these from the Arduino IDE.
• /extras - Additional documentation for the user. These files are ignored by the IDE.
• /src - Source files for the library (.cpp, .h).
• library.properties - General library properties for the Arduino package manager.

• Installing an Arduino Library Guide - Basic information on how to install an Arduino library.
• Product Repository - Main repository (including hardware files) for the RFM22 Arduino Shield.

This product is open source!

Please see the LICENSE.md file for more information.

Distributed as-is; no warranty is given.

• Your friends at SparkFun.

Based off of the original RadioHead library by Mike McCauley