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Author Topic: Guide: Electronic Lock with Key Card  (Read 21678 times)

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Guide: Electronic Lock with Key Card
« Reply #40 on: September 29, 2004, 05:15:48 AM »

One thing that came to my mind today.

Use an external 12V power source, like a transformer. ;)

Easy and cheap way to solve this problem if you don't wish to play with those resistors in the schematic.
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