[sdiy] Proximity detector

[James Patchell]

Sounds like you need a Therimin....

At 05:12 PM 3/17/2004 +0100, Fredrik Carlqvist wrote:

>Hi!
>
>Does anybody know a circuit for detecting the presence of a
>human body? Kind of like the ones that open the doors at the
>supermarket. Preferrably, they would output a voltage
>proportional to the distance of the body.
>
>
>Fredrik Carlqvist

         -Jim
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