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The UKHA-ARCHIVE IS CEASING OPERATIONS 31 DEC 2024

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Re: Sensor



At 19:21 02/08/00 +0100, you wrote:
>Don't usually close the door. But now that you mention the door, the
>bathroom does not have a window so the light has to be on when
occupied.
>Anyone know of a mains sense to TTL circuit ?

HCPL-3700 is a mains to logic level chip, but I don't think your employers
sell it
:-)

IIRC, Farnell and RS both do though.

It needs a couple of components added, but there are detailed data sheets
on the web.

Even easier, just fit a relay with a mains coil and use the contacts.

Nigel


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  • References:
    • Sensor
      • From: "Steve" <steve@xxxxxxx>
    • Re: Sensor
      • From: Julian Driver <julian@xxxxxxx>
    • Re: Sensor
      • From: Stuart Grimshaw <stuart@xxxxxxx>
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