Everything for Electronics
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AC Volt/Amp Meter with Web Interface

Work areas usually have multiple power strips ganged together and connected to the same outlet. Various devices are connected to these strips, including computers, lights, coffee pots, space heaters, etc. Environmentally conscious persons ask, “How much power does my work area consume?” Safety conscious persons ask, “Am I overloading my circuit?” Calculating the answers requires two basic measurements: the voltage supplied to the circuit, and the amperage consumed by the circuit. Measuring AC voltage and, particularly, amperage with a multimeter is a potentially dangerous diagnostic for laypersons.

Wouldn’t it be nice to have a self-contained volt/amp meter that displays the values on a webpage?

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Build a Digital Light Saber

Want to “paint with light?” This article explains in detail how you can build a low cost (<$100) microprocessor-controlled LED light saber that provides as much or more capabilities than professional light wands.

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Keep Your Home Secure with Raspberry Pi

Surveillance is one of the most effective deterrents against crimes lke burglary and theft. The Raspberry Pi can be the foundation of a great DIY home security system.

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10 Awesome Raspberry Pi HATs You Need to Try

Whether you’re building your own electronic drum kit or measuring distance with a 3D scanner, a HAT can give your Raspberry Pi exactly the functionality you need.

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Build a Custom Weather Gauge — Part 2

This fun, elegant, and useful project pulls data from the Internet so a series of useful displays can show all kinds of cool info in real time from your mantel or bookshelf in this impressive platform.

In our previous article, we discussed the circuit and code for each of the core components for our Weather Gauge. We took a deep dive on how the stepper is wired up and the node.js code that drives it. Now, it’s time to put it all together and light it up in this final installment.

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Build a Custom Weather Gauge — Part 1

This fun, elegant, and useful project pulls data from the Internet so a series of useful displays can show all kinds of cool info in real time from your mantel or bookshelf in this impressive platform.

In this first article of a two-part series, we’ll discuss the circuit and code for each of the core components for the weather; take a deep dive on how the stepper is wired up; then learn about the node.js code that drives it.

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Turn your Raspberry Pi into a remote-controllable Internet radio/music file player

Now, while I’m sitting in my favorite chair, I can listen to Internet radio stations or play artists, albums, or individual songs from a Flash drive plugged into my Raspberry Pi. Get step-by-step instructions on how to turn your RPi into a remote-controllable Internet radio/music file player.

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