Latest Switching Regulator Projects

How to Build a Class-D Power Amp

Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.

August 29, 2018 by Cezar Chirila

A Simple, Compact Power Supply for Analog and Mixed-Signal Systems

This project demonstrates and discusses the performance and functionality of an inductorless ±5 V power-supply circuit.

June 18, 2018 by Robert Keim

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

How to Build Your Own Function Generator Using Analog Devices’ AD9833

Tired of using your PC or mobile phone as a signal generator? It’s time to upgrade to a standalone one by making it yourself.

January 17, 2018 by Cezar Chirila

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

“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

The Holiday Season Analog Alarm! A Gift-Defending System

Nowhere to hide presents this holiday season? No problem! This alarm will sound anytime a loved one tries to get a sneak peek at his or her surprise.

December 05, 2016 by Ryan Jones

Build Your Own LED Saber—Firmware, Microcontroller, and Testing

In part 3, we compile the firmware and build the controller at the heart of the Saber, then do initial testing and diagnostics.

October 20, 2016 by Jeremy Lee

Build Your Own LED Saber—Audio and Power Systems

In part 2 of the LED saber project, we'll assemble the power and audio systems.

October 19, 2016 by Jeremy Lee

How to Build the Brightest LED Saber in the World

The brightest blade in the world. Fluid sound effects generated in real time. Any colour, changeable on the fly. If you want to know what it feels like to hold a Lightsaber, this project is the closest you can get today.

October 18, 2016 by Jeremy Lee

C-BISCUIT: Schematic Design for the RCB—Power, Stepper

We’ll continue our discussion of the C-BISCUIT demo bot by looking at portions of the RCB schematic that weren’t covered in the previous article.

October 07, 2016 by Robert Keim

Build Your Own Metal Detector with an Arduino

Building a metal detector using a Colpitts oscillator and an Arduino.

October 03, 2016 by Evan Kale

DIY Tools—Build Your Own Logic Probe

Having a logic probe handy is always a must for an electronics workshop. But instead of buying one, why not build your own for a fraction of the cost and have it working in an hour?

September 22, 2016 by Robin Mitchell

DIY Synth Series Part 1 — The Exponential VCO

Build a 1V octave voltage-controlled oscillator (VCO) module and create your own analogue synth sounds.

August 08, 2016 by Robin Mitchell

Build Your Own RFID Technology Using an Arduino MEGA

In this article, we are going to learn some basics about RFID technology and use an Arduino MEGA to a play around with a popular RFID module, the ID12LA.

July 20, 2016 by Joseph Corleto

Understanding and Using the SAM4S Digital-to-Analog Converter

Part Two in this three-article series explores the SAM4S DAC. We’ll look at hardware configuration, electrical characteristics, and the application programming interface.

May 04, 2016 by Robert Keim