[oopic] Re: OP AMP Circuit for PIR sensor

Richard:

I did look at that circuit which is why I am posting for a simpler
one. A lot of that circuit is for tripping a 12 volt relay which is
irrelevant to interfacing to an MCU. And I do have that Futurelec
motion sensor module -- it's a very nice unit, and reasonably priced,
but it doesn't meet the requirements for my particular application.

--- In oopic@yahoogroups.com, "rtstofer" <rstofer@...> wrote:
>
> --- In oopic@yahoogroups.com, "jporterwbtcorp" <jporter@> wrote:
> >
> > I have acquired a PIR D203S infrared motion sensor and I want to
> > interface it to an ooBot 4. I have been testing it with a
multimeter
> > and I cannot get a readable signal out of it so I assume I need
some
> > kind of amplifer circuit to get a usuable level out of it. Can
anyone
> > suggest a simple amp circuit that I can use to do this? Thanks.
> >
> > Datasheet for the sensor is located at
> > http://www.futurlec.com/PIR_D203S.shtml
> >
>
> Did you look at the circuitry on page 4 of the datasheet? You have
a
> sensor that requires A LOT of support circuitry before you can
> interface it to a uC like the OOPic.
>
> You should be looking at the PIR Sensor Module (with the dome cover
a
> little further down the page at Futurelec) that includes all of the
> electronics. These are easy to interface. I have several that I
use
> for Halloween effects.
>
> Richard
>

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