[Coco] A little off topic

[William Mikrut]

We were thinking about a foot or two.
Any closer and the cat is on its way to being a dog snack.

Mind you... we won't be actually placing these on animals... (although my
daughter will want to).

I Was likely going to put both units in a small project box and move the
boxes close to each other to initiate the beeping.

On May 16, 2017 10:23 PM, "Salvador Garcia via Coco" <coco at maltedmedia.com>
wrote:

> A possible problem that I see is that even without an antenna, the comm
> range could be 10 feet or more. Also since both components will be
> "mounted" on the tabby and canine, the orientation on the devices will be
> constantly changing and in some cases, the orientation of the device
> affects the range.
>
> The first question I would ask is how close do you want the two devices to
> be for the trigger to go off?
>
> Salvador
>
>       From: William Mikrut <wmikrut72 at gmail.com>
>  To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>  Sent: Tuesday, May 16, 2017 8:40 PM
>  Subject: Re: [Coco] A little off topic
>
> Ok, so keep in mind this is for a 5th grade project... and will get my
> daughter into working with components... that's the main point of the
> project!
>
> She came up with an idea --- to try and keep the dog and cat away from each
> other, build a device that beeps when they're close.
> So, I went to work thinking up how to do this and tried to keep it as
> simple as possible.
>
> I was going to start with an RF Transmitter & Receiver for use with Arduino
> DIY Projects:
> ( I am not embedding links here because I am not advertising anyone site )
>
> I figure without an external antenna -- maybe the transmitter/receiver can
> be a couple feet away and function... any further and the link is broken.
> I planned to attach a 555 timer pulse to the transmitter data pin and keep
> sending a pulse all the time.
>
> On the receiver have a transistor (or such)  hooked up to the data pin.
> When data is received, it receives the 555 pulse, and in the transistor
> circuit have a small piezoelectric speaker that sounds out the 555 pulse
> from the transmitter.
>
> Volia -- close proximity -- loud pulse from the small speaker.
>
> Epic failure -- or plausible project we can build?
> Thank you!
>
>
>
> On Tue, May 16, 2017 at 6:46 PM, Camillus Blockx <camillus.b.58 at gmail.com>
> wrote:
>
> > Let's hear it..
> > Cb
> >
> >
> > On May 16, 2017 5:27 PM, "William Mikrut" <wmikrut72 at gmail.com> wrote:
> >
> > > I have a question... and there are hardware gurus out there (you know
> who
> > > you are).
> > > And I was hoping I could ask for a little time from someone to lend
> some
> > > offline expertise to me.
> > >
> > > I have a child who wants to build an electronics project for school.
> > > I attended ITT --- but it was so long ago, I am extremely rusty as
> > designs.
> > >
> > > I have the basic idea and parts list -- and before I start purchasing
> and
> > > assembling ( and quite possibly letting a lot of magic smoke escape ),
> I
> > > was hoping I could run the idea passed someone and ask if what we are
> > > trying to accomplish is as simple as I see it.
> > >
> > > It's a small project and will require no more than a handful of parts.
> > > Thank you!
> > >
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> > >
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