Hi
Sorry for my terreble english.
Once i have seen a computer monitor in shop window, and beneath it there was two lights beeming on/trough glass. When person put's his finger on one of the beem the information on monitor changes.
Something like Page Up and Page Down on keyboard controling data on monitor.
Question: have you seen that kind of project, i'd like to make something like that, buth cann't find any schematics. tnx in advance
Dejan
Hey Dejan,
There's many ways of doing these things, for instance measuring the amount of reflected light when an object is placed above the source. But another thing I recently found are some chips from the company "Quantum Research Group". Haven't 'played' with these yet, but look like pretty cool devices. The light for these devices would simply be for signalling and cosmetics.
Web:
Goodluck,
Jasper
Something like
If you want a more simple approach, buy 2 LDR's (Light dependant resistors) and connect them as 'game paddles' to your sound card. An easy Basic program allows you to program quite a lot of different things.
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