Rock, Paper, Scissors Electrified!
March 2022
Are you ready for some serious Rock, Paper, Scissors competition?
Build a Farmer, Fox, Chicken, Corn Puzzle
January 2022
Build an updated version of this popular game using an Arduino.
BUILD A ONE INCH SCOPE
June 2020
When you need a quick look at an audio or moderate rate digital signal, this scope can do the job.
Build a Simple Isolator for Externally Powered Arduinos
May 2020
Build an external power supply for your Arduino projects.
The Electric Brains of Yesteryear
April 2020
Get Geniacs and Brainiacs from decades ago working again.
How You Can Intercept Secret Messages Being Sent to Spies
March 2020
Unidentified radio broadcasts have been transmitting coded messages using numbers for years.
Remembering the Crystal Radio
January 2020
Reminiscing about the good times that crystal radio sets provided.
Newton’s Apple
May 2019
A fun spin on the classic falling body experiment to measure the acceleration of gravity.
Restoring the Heathkit ES-400 Computer
March 2019
Refurbishing the “Big Kahuna” of Heathkits.
Build the Laser Pencil Engraver
January 2019
Customize pencils for friends and family.
Can You Trust Your Voltmeter?
September 2018
You can easily build or buy a perfectly good IC voltage reference and set your mind at ease about the accuracy of your meters.
Build Your Own Funky STEAMPUNK Display
July 2018
Using 1” high seven-segment electromechanical displays (EMDs) in projects.
The Magic of the Gilbert Erector Set
April 2017
Update a classic Erector Set Ferris Wheel with an Arduino.
Name That Part!
December 2016
Test your electronic components knowledge with this photo quiz.
Name That Part!
September 2016
Test your electronic components knowledge with this photo quiz.
Name That Part!
June 2016
Test your electronic components knowledge with this photo quiz.
Old Heathkits Never Die, They Just Get Restored
May 2016
If you enjoy restoring old electronic equipment, then you’re gonna love this story of bringing a Heathkit EC-1 back to life.
Name That Part!
March 2016
Test your electronic components knowledge with this photo quiz.
Build a Fun Wind Speed Tracker with a Raspberry Pi
February 2016
The tiny plot on my Davis weather station’s LCD screen is not very resolved and I wanted it to be better ... a whole lot better. The solution: a Raspberry Pi!
The Retro-Shield: Where the Past Meets the Present
April 2013
Combine a vintage vacuum tube with an Arduino for an updated version of an AM broadcaster.
Build a Wall Wart Power Monitor
February 2011
This self-contained, battery-powered unit measures both DC current and voltage. It accepts four of the most common wall wart plugs and also has four identical output plugs — ready to hook to your project.
