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Devices to interrupt or route a signal or power one of several ways.

-2 votes
1 answer
3k views

Switching voltage on/off from a 9v battery using a 2n2222A transistor and an arduino

First of all, I'm a new hobbist trying to learn how to do these sort of things. So I'll try to explain my problem as best as I can! I'm trying to use my Arduino, via a mechanical switch (Illustrated …
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