Companion Website for

Ham Radio for Arduino and Picaxe

Ham Radio Meets Open Source Electronics

Note: Our main website is currently down, so the helpboard and the map generator are not available. We hope to restore the helpboard soon.

Source code for projects and Author's Notes are still available on this site.

We are also copying content to GitHub .

Thank you for your patience. 73/WA5ZNU

  • Softcover: 352 pages
  • Publisher: The American Radio Relay League, Inc.; First Edition/First Printing (February 2013)
  • Language: English
  • ISBN: 978-0-87259-324-4
  • Product Dimensions: 8 3/16 x 10 7/8 inches
  • For Special ARRL Member Pricing visit

References, Downloads, and Community Forum

For References and Downloads, see:

Visit the Community Forum for the discussion forum bulletin board:

About the Book

Microcontroller technology has exploded in popularity among ham radio operators. The new generation of single-board microcontrollers is easier than ever to use, bringing together hardware and software for project-building most radio amateurs can easily dive into.

With inexpensive microcontroller platforms – such as the popular open-source Arduino board – along with readily available parts, components and accessory boards, the possibilities are limitless: beacon transmitters, keyers, antenna position control, RTTY and digital mode decoders, waterfall displays, and more.

About the Authors

Editor Leigh L. Klotz, Jr, WA5ZNU has assembled this first edition of Ham Radio for Arduino and PICAXE to help introduce you to the rewards of experimenting with microcontrollers. Klotz and many other contributors have designed projects that will enhance your ham radio station and operating capabilities. Or, you can take it to the next step, using these projects as a launch pad for creating your own projects.

Advance Praise

"The projects here use common, off-the-shelf physical computing parts such as the Arduino, and leverage techniques and expertise from the ham community and the Maker community to make something that both groups can appreciate, use, and extend." — Dale Dougherty, founder of MAKE Magazine and The Maker Faire.

You will:

  • Build one of the projects in a weekend, and have something you can use around the shack or in the field.
  • Learn to customize and extend the hardware and the software.
  • Solve real problems yourself, using easy-to-use tools and techniques.
  • Choose among the Arduino, ATTiny, and Picaxe, for your project.


  • APRS Data Logger
  • QRSS Beacon
  • Multimode Transmitter Shield
  • High Voltage, High Frequency and High Temperature Data Logger
  • Receive-Only, Low-Power APRS iGate
  • PICAXE Keyer and CW Beacon Keyer
  • Solar Tracker
  • Nanokeyer
  • Handheld Radio Talk Timer
  • APRS Messenger
  • DMTF Controlled SSTV Camera
  • APRS Display
  • Waterfall
  • SWR Scanner
  • ...and more projects using the Arduino, PICAXE, and ATtiny microcontrollers
Ham Radio for Arduino and Picaxe (c) 2013 ARRL

Copyright © 2013 American Radio Relay League. All Rights Reserved.

About the Amateur Radio Service:

Amateur (Ham) Radio provides the broadest and most powerful wireless communications capability available to any private citizen anywhere in the world. The principles of this federally licensed radio service include public service, radio experimentation, training, and international goodwill. ARRL is the national membership association for Amateur Radio operators. ARRL has books, software, online courses and other resources for licensing, operating, and training. Published by: The National Association For Amateur Radio ARRL®

Arduino is a registered trademark of The Arduino Team. PICAXE® is a registered trademark licensed by Microchip Technology Inc. to Revolution Education Ltd for exclusive worldwide use. Book cover photo by Alan Biocca W6AKB.

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