Re: LED flasher for a dog's collar.


"ehsjr" <ehsjr@xxxxxxxxxxxxxxxx> wrote in message
news:wsrJg.2969$dj4.436@xxxxxxxxxxx
tommy wrote:
GregS wrote:

In article <9uiJg.12798$%j7.1335@xxxxxxxxxxxxxxxxxxxxxxxxxx>, "greysky"
<greysky@xxxxxxxxxxxxx> wrote:

Hi-

I need to build some sort of a flasher to put on my dog's collar- she's
the
same color as the carpet and keeps getting stepped on :-) I'm thinking
a
3909 flasher running a LED from a coin cell. I haven't kept up to date
on
what's available, or if there are any better chips than the LM 3909 out
there. Ideally it should be able to run for a year and be small enough
to be
clipped onto the dogs collar without having a honking big battery
hanging
off it (ideally the thing has to be smaller than the dog, which is
pretty
tiny). Any suggestions appreciated. TIA.

You need to get a bigger dog.

Paint the dog.

Put a helium baloon on it.

Does the dog sleep with you?

greg




Maybe just a simple 555 astable?


Instead of the dog?

Thats a bit ruff


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