[sdiy] Retaining button state after power off?

cheater00 . cheater00 at gmail.com
Fri Jan 31 19:34:00 CET 2014


On Fri, Jan 31, 2014 at 7:02 PM, Needham, Alan
<Alan.Needham at centrica.com> wrote:
> Thinking of '80s gear reminded me of latching relays... old-school but maintains state after power-off!
> Definitely available - about £4 each
>
> I do think a single £3 micro would be a much better answer.

I thought relays were so obvious, he didn't want to hear about them.
But yeah, fair game.



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