Some blinking LEDs
How much experience do you have? Does the project use anything you didn't create?
Prior to this weekend, I knew next to nothing about circuits, but I had always wanted build a project with LEDs. A friend let me borrow their old Arduino, breadboard, and some parts so I did some research on the interwebs. I read up on the basics of Arduino, C language, and sketches, and built a super lame but fun project! I learned a lot about the different parts including resistors (and the color codes), breadboards, the different pins, and more!