Latest Wireless/RF Projects

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Designing a Wideband Analog Voltage and Current Meter

Design a wideband analog multimeter to measure AC voltages and currents from 20 Hz to 1 MHz with a selectable sensitivity from 1 mV to 100 V, while the ammeter has a selectable current sensitivity of 10 mA to 10 A.

May 03, 2023 by John Woodgate

Designing a Quadrature Network Using an All-pass Filter

Quadrature networks convert a single input signal into two outputs with a 90-degree phase difference. This article explains how to design quadrature networks using all-pass filters.

December 23, 2022 by John Woodgate

How to Build an Analog Sensor and Analog Output Using Microchip’s RN487x Bluetooth Module

Learn how to hook up an analog input (potentiometer) and output (LED) using a Microchip BLE module.

October 21, 2019 by Aaron Hanson

How to Build a Digital Input and Digital Control Using Microchip’s RN487x Bluetooth Module

Learn how to use a Microchip module to prototype digital input and digital control peripherals.

October 13, 2019 by Aaron Hanson

Hardware Evaluation of a Custom Programmable Wi-Fi Controller: The WiCard

This article explores the schematic design and basic features of a smart programmable wireless controller module I designed: the WiCard.

June 01, 2018 by M. Mahdi K. Kanan

How to Stream Sensor Data from Bosch’s XDK110 Evaluation Board to the MQTT Messaging Service

In this article, we will take a look at the XDK110 rapid prototyping kit, characterize its hardware, explore its software environment, and demonstrate connecting the device to the MQTT messaging service.

April 12, 2018 by Mark Hughes

How to Add Bluetooth 5 to a Project with a GT-tronics BLE5 Module

This article demonstrates a solderless-breadboard compatible carrier-board for a pre-certified BLE4 or BLE5 module made by GT-Tronics. Use it to experiment with your own BLE5 compatible designs.

April 04, 2018 by Mark Hughes

Power over Ethernet (PoE) with Microchip’s EoE!

Embrace the power of Power over Ethernet with Microchip's Ethernet of Everything!

January 26, 2018 by Ryan Jones

F.U.N. with B.L.E.

With all these invisible radio frequencies flying through the air, we should know a little bit about what exactly they are!

September 08, 2017 by Ryan Jones

The Wi-Fi Eye, Part 4: Power System and Neopixel Lights

In part 4 of our Wi-Fi Eye project, we'll deal with our power supply

July 28, 2017 by Jeremy Lee

The Wi-Fi Eye, Part 3: Choosing the Right Servos for the Job

Part 3 of this project focuses on choosing and configuring the servos you will use to create your Wi-Fi Eye.

July 27, 2017 by Jeremy Lee

The Wi-Fi Eye, Part 2: Firmware, Wiring, and Network Connection

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

July 26, 2017 by Jeremy Lee

The Wi-Fi Eye, Part 1: Introduction, Features, and Materials

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

July 25, 2017 by Jeremy Lee

ESP Alarm: Make an IoT, Wi-Fi Enabled Alarm Clock with an ESP8266 and Arduino UNO

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

July 21, 2017 by Yahya Tawil

Troubleshooting Tools for Your Next Bluetooth LE Project: Ubertooth and the Nordic nRF Sniffer

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

July 14, 2017 by Mark Hughes

Make a Web Server with ESP8266

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.

July 05, 2017 by Mohammad Amin Karami

“Everything is Better with Bluetooth”:  Add Your Own Custom Bluetooth LE to Your Next Project

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).

June 28, 2017 by Mark Hughes

Build an IoT Notification Device with an Arduino UNO

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

June 23, 2017 by Don Wilcher

Add Voice Commands to Your Next Project with Bluetooth LE

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.

May 17, 2017 by Mark Hughes

Build an Arduino Multi-Node BLE Humidity and Temperature Sensor Monitor

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.

April 28, 2017 by Raymond Genovese