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