Computer control with a laser pointer, a webcam, and a wall…
Raphael writes “I wanted to be able to control my music player, xmms, using a laser pointer and a wall. I drew the symbols for rewind, stop, play, forward on paper sheets using fluorescent ink so it looks cool with a blacklight and sticked them on the wall. I coded a simple tool that monitors the wall for the presence of a small spot using a webcam. When the spot appears somewhere, if it is inside a defined hotspot, the appropriate command is executed”. Link.
If Peter Wallace’s recent experience with hotel access cards is an indicator, leaving your electronic hotel room key behind when you check out could leave you open to identity theft... [
Very cute and clever project over on Instructables – Otis writes “Tired of buying high-priced toys for your furry friend to chew on? make your own with an empty paper towel roll and some peanut butter”.
