Arduino Projects For Ham Radio – Beginners To Pro!

Most Hams love tinkering with electronic equipment (A drawer full of chipboards and microcontrollers? Check!)

At the crux of their passion for creating things and their love for Ham radio lies their desire to DIY a Ham radio.

Arduino, being one of the go-to equipment for electronic DIY projects, intrigues these Hams. They want to experience the powers of Arduino and the ecstasy of communicating with their own handmade radio.

If you happen to be one of these Hams, this article is for you!

In this article, I am sharing how Arduinos may open new creative avenues for you to manifest your Ham radio ideas.

So, stick till the end to find out about some exciting and relatively simple Arduino projects for Ham radio you can start working on today!

But first…

What is Arduino?

An Arduino is essentially a very tiny computer controlled by a simple software program.

You can get these computers to perform a wide range of activities. But mainly, they are used to control processes and supplement communication between various input/output devices.

There are many types of Arduinos like Arduino nano and Arduino DUE, to name a few. And you can use any one of these types in your projects.

Can You Build a Radio with Arduino?

Yes, you can build a radio using Arduino.

But you will need a bunch of other equipment for this radio to actually work as a radio.

Arduino basically works as the brain of the radio and supplements the communication between input and output devices.

Along with building an entire radio using an Arduino, you can also create supplementary devices that can uplift the features of your radio device.

But more on Arduino projects for Ham radio later. 

The features of your Arduino-supported ham radio can be as diverse as your imagination.

You can add LED lights to your radio, augment it with an LED screen, or control the frequency and volume with potentiometers.

The Arduino will bring all of these hardware pieces together and will help you bring your idea into reality with a software program that you can upload into the device.

For example, if you want the frequency to change when you turn the potentiometer knob and want the LED screen to display this change, just code the instructions into the Arduino, and it will do as it is told.

This power of manifesting your electronic-creativity through homebrewed devices makes Arduino projects for Ham radio a topic of intense interest.

Now that you know how Arduino supports DIY Ham radio projects let’s go on and talk about how you can make Arduino projects for Ham radio.

How Do You Make An Arduino Project for Ham Radio?

Living in an era largely supported by the internet, you don’t have to fret over creating Arduino projects for Ham radio.

With a highly supportive community and numerous helpful resources, even novice Hams can kickstart their Homebrewing journey easily.

There are numerous unique Arduino projects for Ham radio.

So, instead of listing just one project, in this section, I am sharing a basic overview of how you can go about creating Arduino projects for Ham radio.

As I said, the internet has lots of resources you can use to start building your Arduino projects for Ham radio.

Search for one of the projects and get inspired. See how things start and progress. Since Arduino development is largely supported by open-source software and hardware, you can either copy the projects you find online as they are or modify them slightly to add your own flair to them.

Once you have found the project and have decided how to go about creating it, the next step is to collect the equipment.

After you have the equipment on hand, you can connect all the hardware. You will, most likely, find a circuit diagram with the project you are using as a reference. Use this diagram to help you with the setup.

Once the hardware is set up, it’s time to program the Arduino to make the radio work the way you want.

For this step, you will have to download an Arduino IDE or access the cloud-based Arduino IDE through the website

You will find the programming code in the project you are following. Copy this code as it is and modify it for any changes you are making to the project. Then, upload this program into the Arduino, which connects directly to the computer for easy download.

Once your Arduino program is uploaded to the microprocessor, that’s it! Your new Arduino project is ready to inspire!

What Do You Need to Make An Arduino Project for Ham Radio?

The equipment listed in the “What You Need” section of the project you choose may not be enough for a successful project.

Here is a comprehensive list of what you must have to build a Ham radio using Arduino:

  • A soldering iron and wire solder.
  • A workbench and the right environment to enable creation.
  • At least basic-level technical skills. If you cannot hold a soldering iron, learn to do that first. Having said that,
  • Willingness to learn. The real fun begins when you learn something new.
  • Passion for the project. Scratch-building may test your skills, and the results may not be exactly as you expect the first time. So, if you aren’t passionate enough to bear through the minor failures, you may start with pre-made kits.
  • Creativity. Again, you may have to find your way through some minor issues to get your desired results.
  • Because you are building a Ham radio with Arduino, a Ham radio license.

Is It Illegal to Sell Arduino Projects?

Okay, now you have built an amazing Ham radio that does what no other radio does. You want the world to know about it. More importantly, you want to make some big bucks from your hard work and innovation.

But is it legal to sell Arduino projects that have been inspired (or downright copied) from somewhere else?

The quick answer is yes. You can sell your Arduino project for Ham radio without fearing a trip to the court.

But there are a couple of caveats.

Arduino is an open-source hardware and software so you can use those elements without any legal formalities. The name, however, is protected by a trademark. So, you cannot use the name “Arduino” as the product name.

Secondly, just make sure the hardware and software program you have copied are indeed open-source and do not require any sort of license.

Arduino Projects for Ham Radio You Can Try!

Until now, I have tried to build a foundation for DIYing Arduino projects for Ham radio to ensure that you can have fun with the projects listed in this section.

Here are some fun and relatively simple Arduino projects for Ham radio you can try today:

2-m Band Ham Radio Transceiver

This project lists all the resources you need to build an Arduino-controlled Ham radio transceiver.

Find this project here.

Arduino All Band Receiver

If you want to build a diverse radio capable of receiving commercial channels and amateur signals, try this project out!

Find this project here.

Intelligent Antenna Matrix Switch

An antenna switch allows you to use different antennas for transmitting and receiving. The project I am pointing you to here builds an antenna switch that can automatically switch between 5 different antennas.

Find this project here.

Variable Frequency Oscillator

This Arduino project for Ham radio walks you through creating a 10 kHz. to 225 MHz. VFO, which can be used in homebrewed low-powered Ham radios.

Find this project here.

Arduino-compatible Ham Shield

If you want to start with one of the simpler Arduino projects for Ham radio, this one is for you.

This project uses a pre-made (and rather expensive) HamShield that you can mount on top of your Arduino, download the HamShield library and build yourself a powerful transceiver.

Here is the tutorial for this project and it’s program code!

(Note: You may still need soldering skills for this project. But the vendor claims its not that hard)


Building an Arduino project for Ham radio can be an exciting and (almost) therapeutic experience for electronic tinkers and ham radio enthusiasts.

However, another group of Hams may question the need for going through all of this trouble just to get a device that you can easily buy online?

Well, store-bought equipment can never give the satisfaction and joy you get from creating something with your own hands and then watching it do the job you had created it for.

Therefore, no matter how affordable, efficient, and accessible pre-made ham radio equipment may become, Arduino projects for Ham radio will always have a special charm to them and continue attracting tinkering Hams.