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/diy/ - Do It Yourself

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>> No.2538168 [View]
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2538168

can someone design a LED flasher for me?
I have some jars of strontium aluminate rocks and I want a small LED powered by a button battery that flashes once every 5 minutes or so (ideally this delay would be somehow configurable) that I can glue to the jar lid. that's pretty much it

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