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[Spridgets] Not LBC.....electronics advice school project.

Subject: [Spridgets] Not LBC.....electronics advice school project.
From: grunthaner at gmail.com (Linda Grunthaner)
Date: Sat, 3 Dec 2011 11:44:03 -0800
References: <CAL0QtVdNVBPj6wGyTF_S8MrPqXc2E_mghX7Se+9eNAh+5xervw@mail.gmail.com> <6C53C0DD692540958ACD773AD02FF78A@t60>
Thanks it is for 2 foot distance and to keep new Sprite Cat from tackling
Stitches therefore both have to wear part of it.
Lin

On Wed, Nov 30, 2011 at 3:30 PM, Dean Hedin <dlh2001 at comcast.net> wrote:

> I can probably point you in the right direction.
> But I need to know how you want to detect when something is near, and how
> close is near?
>
> Keep in mind that there are also off the shelf solutions like the sensors
> you can buy that can turn on a light when a person walks in front of the
> sensor.
>
>
> http://compare.ebay.com/like/330378325716?var=lv&ltyp=AllFixedPriceItemTypes
> &var=sbar
>
> http://www.harborfreight.com/wireless-driveway-alert-system-93068.html
>
>
>
> http://www.homedepot.com/h_d1/N-5yc1v/R-100685859/h_d2/ProductDisplay?langId
> =-1&storeId=10051&catalogId=10053
>
>
> The above are less than $20.  Sure you want to re-invent the wheel on your
> breadboard at that price?
>
>
>
> -----Original Message-----
> From: spridgets-bounces at autox.team.net
> [mailto:spridgets-bounces at autox.team.net] On Behalf Of Linda Grunthaner
> Sent: Wednesday, November 30, 2011 8:42 AM
> To: Spridget list
> Subject: [Spridgets] Not LBC.....electronics advice school project.
>
> List,
> Does anyone on the list have electronics experience that can help me with a
> circuit I am trying to design for my class?
>
> I only have a fair amount of electronics experience so I'm not sure what
> parts I need. I'm a shop certified teacher and CAD instructor so I'm
> familiar with tools and schematics and have built electronic devices. I
> haven't dabbled in electronics circuits in years so I'm not sure what parts
> I need.
>
> I am trying to design a circuit (starting with breadboard) that will allow
> a buzzer to buzz when another object comes close so it will have to be
> wireless. Once I know what parts I need I'd like to make it as small as
> possible perhaps 1/2.
> Thanks Lin
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