Latest Software-Defined Radio Technical Articles

This project uses the Alorium Technology XLR8, a Bluetooth LE HID Implementation, and the EasyVR voice recognition module…

This project uses the Alorium Technology XLR8, a Bluetooth LE HID Implementation, and the EasyVR voice recognition module to add voice-activated movements to your next project.

Use Cypress Solar-Powered BLE Sensors, an Arduino UNO, and an HM10 BLE module to make your own multi-node temperature and…

Use Cypress Solar-Powered BLE Sensors, an Arduino UNO, and an HM10 BLE module to make your own multi-node temperature and humidity monitor and display.

Transmit humidity and temperature data with a fully functional, off-the-shelf, battery-less wireless sensor node.

Transmit humidity and temperature data with a fully functional, off-the-shelf, battery-less wireless sensor node.

This article shows you two ways to use a Raspberry Pi Zero Wireless to track flights in your area. It also demonstrates…

This article shows you two ways to use a Raspberry Pi Zero Wireless to track flights in your area. It also demonstrates how it can control a 64×64 RGB matrix.

The CDCE813-Q1 is a customizable, fairly high-frequency clock generator that is qualified for automotive applications.

The CDCE813-Q1 is a customizable, fairly high-frequency clock generator that is qualified for automotive applications.

Detecting, decoding, and displaying IR (Infrared) signal data is interesting, but using those signals to control stuff is…

Detecting, decoding, and displaying IR (Infrared) signal data is interesting, but using those signals to control stuff is more interesting . . . and sometimes useful. Read on to learn how.

Using a custom framework (RIOT) to control an LED with a networked computer.

Using a custom framework (RIOT) to control an LED with a networked computer.

Learn how to listen to frequencies on the air with nothing more than a USB dongle: first FM radio, then voice signals.

Learn how to listen to frequencies on the air with nothing more than a USB dongle: first FM radio, then voice signals.

All about software-defined radio (SDR).

All about software-defined radio (SDR).

Create a tracking device with an HC-12 transceiver, a GPS module, an Arduino, and Google Maps.

Create a tracking device with an HC-12 transceiver, a GPS module, an Arduino, and Google Maps.

The HC-12 is a 100mW multi-channel wireless transceiver you can use in your projects to transmit and receive serial information.

The HC-12 is a 100mW multi-channel wireless transceiver you can use in your projects to transmit and receive serial information.

Tutorial on designing a Bluetooth Low Energy (BLE) circuit with the ability to measure 9-axis motion, humidity, and temperature.

Tutorial on designing a Bluetooth Low Energy (BLE) circuit with the ability to measure 9-axis motion, humidity, and temperature.

This article will give you the building blocks needed to create your own two-channel wireless remote controller.

This article will give you the building blocks needed to create your own two-channel wireless remote controller.

This two-part project will begin by showing you how to create a robot base from a used electric wheelchair. Part 1…

This two-part project will begin by showing you how to create a robot base from a used electric wheelchair. Part 1 creates a simple robot platform for use with remote control. Part 2 will develop a platform for use with and Arduino.

Learn how to build a system that can turn DC loads on and off using a mobile application. You'll also learn how to…

Learn how to build a system that can turn DC loads on and off using a mobile application. You'll also learn how to perform this task via immediate actions or via timers set in advance.

Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.

Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.

This article covers everything you need to know to generate pulse-width-modulated signals with Atmel’s SAM4S Xplained…

This article covers everything you need to know to generate pulse-width-modulated signals with Atmel’s SAM4S Xplained Pro development board.

If your microcontroller doesn’t have a digital-to-analog converter, you can make a passable replacement with nothing…

If your microcontroller doesn’t have a digital-to-analog converter, you can make a passable replacement with nothing more than a pulse-width-modulated signal and a low-pass filter.

Amateur radio operators ("hams") have long said, "If you want a bigger signal, put up more metal and put it up higher."…

Amateur radio operators ("hams") have long said, "If you want a bigger signal, put up more metal and put it up higher." Antennas for Wi-Fi are no exception.