Multitouch Without Touch Using Wiimote 94
owlgorithm writes to mention that Gizmodo has a neat hack for the multitouch Holy Grail — multitouch without the touch. This hack turns the Wiimote into a receiver for IR light reflected from an emitter off of your fingers using reflective tape.
Re:Supply will increase massively soon (Score:4, Informative)
We're working very hard to make sure that consumers are satisfied this holiday, but I can't guarantee that we're going to meet demand. As a matter of fact, I can tell you on the record we won't.
I guess I'm going to have to start trolling target, walmart and such on a regular basis.
YouTube Link (Score:3, Informative)
Danger to eyes (Score:4, Informative)
I would suggest doing this in a very well lit room, and NEVER in the dark, or you will likely seriously damage your eyes.
Re:Danger to eyes (Score:4, Informative)
This thing gives off IR in a different frequency than the human body of course, but if in general IR light is "dangerous", then we'd all be blind years ago.
The near-IR light given off by this type of device has very little to do with thermal IR. It is much closer to visible red light, just a bit lower frequency (a couple of hundred nm or less difference, versus thermal IR being closer to ten times lower frequency).
Human eyes are also opaque to thermal IR, which is related to what the GP was getting at - near-IR is potentially dangerous because your eyes are transparent to it, but your retina has very little sensitivity to it. I doubt the amount of NIR illumination here is very significant, but imagine the equivalent of having a bright flashlight stuck in your face, except without the ability of your pupils to contract in response.