Electronics Explained

Over 50 billion units sold. More than 60 years in continuous production. Still specified into new designs today.

You’ve just ordered an exciting new sensor from AliExpress. The package arrives, you tear it open, hold the tiny chip in your hand… and then reality hits.

You’ve probably used a regular mechanical switch hundreds of times today—light switches, keyboard keys, your phone’s power button.

Pulse Width Modulation sounds complicated, but the concept is surprisingly simple.

You’ve got your Arduino talking to one sensor and everything works great.

Every single electronic device you own contains capacitors. Your phone has hundreds of them. Your laptop has thousands.

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.

If you’ve ever wondered why your smartphone is smarter than the room-sized computers that put astronauts on the moon, thank the transistor.

Remember when you were a kid and imagined robots that could actually look at you, track your face, and talk with personality?

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?