Infrastructure projects like the Tokyo Gate Bridge are now turning to LED lighting because of its economical and environmental advantages. But these devices still need the right current-limiting ...

Resistors are fundamental components in electronic circuits. Despite their simplicity, they play a central role in ensuring ...

Your coworker came up with an idea to reduce the number of resistors in your design by having all LEDs use the same resistor. Are there any issues with this solution? 1. The resistor will need to be 1 ...

What’s the weirdest computer you can think of? This one’s weirder. [Dr. Cockroach] figured out a way to create an inverting NOT gate from just one LED and two resistors (one being a photo-resistor).