The Fascinating History of Capacitors
Every single electronic device you own contains capacitors. Your phone has hundreds of them. Your laptop has thousands.
A Deep Dive into How Transistors Work
If you’ve ever wondered how three tiny legs of silicon can control everything from LED blinkers to smartphone processors, you’re about to find out.
The History of the Transistor: How It Changed the World
If you’ve ever wondered why your smartphone is smarter than the room-sized computers that put astronauts on the moon, thank the transistor.
Is This the Coolest Robot Ever Built? Meet AlexaTron
Remember when you were a kid and imagined robots that could actually look at you, track your face, and talk with personality?
Michael Faraday: The Father of Electrical Engineering
Here’s a question that might surprise you: what do your phone charger, your car’s alternator, and every electric motor on Earth have in common?
From Scrap to Craft: Amazing Things to Make from Dead Laptops
This article was inspired by DIY Perks on YouTube. Watch it…
The Story of the PCB: The Little Green Thing That Makes Electronics Work
Crack open any electronic device — your phone, your TV remote, your car’s dashboard — and you’ll find a green (or sometimes blue, red, or black) board covered…
Build a Fingerprint-Scanner Door Lock with Arduino
Ever wished you could unlock your door like a spy in a movie? No keys to lose, no codes to remember — just press your finger and you’re in.
Newsletter: Did you know LEGO bricks can now respond to motion and sound?
Happy Friday! Today we’ve got smart LEGOs, a memory crunch that could hit your next build, and a neat transistor explainer you won’t want to skip.
Your first oscilloscope: what to buy and how to use it
A multimeter tells you what voltage is. An oscilloscope tells you what voltage is doing.