Latest Wireless/RF Technical Articles

Part two of building a device that can detect Wi-Fi signals and "react" accordingly.

Part two of building a device that can detect Wi-Fi signals and "react" accordingly.

Building an animatronic, wearable, Wi-Fi robots, part 1: Programming the controller.

Building an animatronic, wearable, Wi-Fi robots, part 1: Programming the controller.

Learn how to make your own Wi-Fi-enabled "ESP Alarm."

Learn how to make your own Wi-Fi-enabled "ESP Alarm."

Learn a little history of EMC compliance, some EMI theory, and some common EMI countermeasures.

Learn a little history of EMC compliance, some EMI theory, and some common EMI countermeasures.

Bluetooth LE was designed with the IoT in mind. Here are some options for troubleshooting your next Bluetooth LE project.

Bluetooth LE was designed with the IoT in mind. Here are some options for troubleshooting your next Bluetooth LE project.

In this project, we first examine how to install an ESP8266 add-on on Arduino IDE and then we make a configurable web…

In this project, we first examine how to install an ESP8266 add-on on Arduino IDE and then we make a configurable web server with an ESP8266 and show the simplicity of this process.

Bluetooth low energy (BLE) is designed to intermittently transmit information using a limited amount of power. This…

Bluetooth low energy (BLE) is designed to intermittently transmit information using a limited amount of power. This article provides the building blocks that allow you to add BLE to your projects for $5 (plus a one-time purchase of a $15 programmer).

Enter the world of the Internet of Things by building your own IoT notification device.

Enter the world of the Internet of Things by building your own IoT notification device.

Radio Over Fiber (ROF) combines RF and optics, providing optical links to replace strategic portions of cellular,…

Radio Over Fiber (ROF) combines RF and optics, providing optical links to replace strategic portions of cellular, satellite, and copper based systems.

Signal degradation is unavoidable, but various ICs, such as the DS250DF210, can help to restore what has been lost (or…

Signal degradation is unavoidable, but various ICs, such as the DS250DF210, can help to restore what has been lost (or eliminate what has been added).

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.

Connecting two parts of a system becomes complicated when your signals are up in the gigahertz range. Let’s take a look…

Connecting two parts of a system becomes complicated when your signals are up in the gigahertz range. Let’s take a look at some new cabling options.

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.

RFID is an advanced technique for attaching information to objects of all kinds, and ICs such as the ST25DV series can…

RFID is an advanced technique for attaching information to objects of all kinds, and ICs such as the ST25DV series can help you to implement this technology.

Why install three components when you could use one instead? You can simplify your layout with single-component passive…

Why install three components when you could use one instead? You can simplify your layout with single-component passive filters, such as the MEM1005PP251T from TDK.

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.

This BIG piano will help exercise the mind and body! All you need is a few buttons, a speaker, and some dancing shoes.

This BIG piano will help exercise the mind and body! All you need is a few buttons, a speaker, and some dancing shoes.

Here we discuss some elementary operations performed on the dependent variable representing the signal(s) and the…

Here we discuss some elementary operations performed on the dependent variable representing the signal(s) and the examples in which they are applied.