Author Topic: how to build a IR light pen  (Read 7094 times)

Offline FanaticFan

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on: January 15, 2008, 08:55:25 AM
Hey.. can anyone give me an instrudaction to biuld a IR light pen.

Offline atomriot

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Reply #1 on: January 15, 2008, 12:19:06 PM
search around the general hardware talk section. also around the site. Johnny has a basic schematic to use but all you really need is a AA or AAA or N batter, a momentary switch an IR LED and some wire to connect it all. (sans container of course)

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