This isn’t just a skull with a few LED’s for your computer. The LED’s fade in and out with disk activity instead of that annoying flicker. The circuit could be used for a lot of different projects, not just case mods.
On/Off blinking Hard-Drive led can get quite annoying sometimes or it doesn’t seem to fit the overall theme of the case or a project. Why not make it smoothly fade in and out when there is some HDD activity? These following steps will show you how to do just that easily and with only small amount of money.
Read how to make a Custom Hard Drive LED & driver