In a month time i'll be 21 years old. When I was 15 years old I had made this project for the first time on high school and I can tell that from that moment, I started my romance with electronics major.
So.. I thought it would be nice to share this project for everyone else, since it's quite easy and the good feeling after it works, is guaranteed.
1)Connect all the LEDs and resistors to the breadboard
2. connect the arduino uno to your PC.
3. Read the code, understand it (you can change the delay time and the order of the scrolling) and upload it to your board.
Now, your LED chaser is ready