Sorry if this is a really simple question, I have not used transistors yet.
I have a power strip with 12v N/O relays inside it. I will be using an arduino to control the relays.
All of the relays will have a constant connection to +12v. The relays are wired to activate by connecting each one to ground instead of positive voltage.
Is it possible to use an NPN transistor to connect ground to a relay instead of positive voltage? My current understanding of a transistor is that is either let's voltage pass through it or it doesn't, hence my question about connecting ground instead.
Thanks
I have a power strip with 12v N/O relays inside it. I will be using an arduino to control the relays.
All of the relays will have a constant connection to +12v. The relays are wired to activate by connecting each one to ground instead of positive voltage.
Is it possible to use an NPN transistor to connect ground to a relay instead of positive voltage? My current understanding of a transistor is that is either let's voltage pass through it or it doesn't, hence my question about connecting ground instead.
Thanks
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