Java Cheat Sheet When Learning to Code: Java is one of the most practical languages out there. This handy cheat sheet helps you keep track of the basics while you begin to learn.
Concept from Korean designer Sungho Lee: Intuitively, I love it! How clever! I want to make a bunch of my own—as I imagine Mr. Lee did—by cutting up some paper clips, clipping the leads on a bunch of LEDs, and soldering the one to the other.
led powered via a usb