Despite everyone& assumptions, we geeks are not always privy to the latest and greatest technology. If you& stuck with an old, slow, crappy computer, there are a few things you can do to make the best of a bad situation. Here are our top 10 favorites.
DIMMING A 10WATT LED The following circuit is a request from a reader. He wanted to dim a 10 watt LED from a 4.2v Lithium Ion cell. The current will be about 3 amps and a power MOSFET is needed to deliver this current. By Collin Mitchell - 30 LED Project.