One of our readers recently found a ASK Proxima C170 (also sold as the InFocus LP600) in the waste bin, thrown away because it stopped working — He snatched it up and decided to try tinkering with it.

That’s a deal for a project, how hard could it be to fix it up? If you’re a real hacker we’d wager you’ve fallen for this type of thought process before. [Luft] bought this used Sharp XR-10X-L ...

Using dual color LED matrix, the project was designed to provide fairy visual projection on ceilings or walls. The matrix has been organized in 8 rows and 16 columns with 8 red and 8 green LED. A ...