Author Topic: where can I get one  (Read 4161 times)


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on: October 26, 2008, 12:26:20 PM
I know you can easily buy one of these ifra-red pens but if you want to build one your self where can you get the "guts" other than buy taking apart a new one.

Offline UndCon

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Reply #1 on: October 27, 2008, 02:09:34 AM
Many pens are assembled from scratch and some are modified LED-lamps where you only replace the LED with an IR-LED

It all depends on how much you are going to use it, how you are going to use it and your basic skills regarding electronics (soldering and such)

To aid calculate resistors and such there are a number of applications available on the web including this one that I really like: