[aprssig] Timer Circuit Needed

[John]

Acuracy is not critical. About 15mins is good.

John

Stephen Brown Jr wrote:

> I don't have much experience with a 555 or a PIC for that matter, but 
> I would seem to think a PIC would be easier to implement and possibly 
> more accurate. 
>
> Just a thought.....
>
> 73's
> Stephen
> K1LNX
>
>
> On 5/24/07, John <johnk.mchugh at att.net <mailto:johnk.mchugh at att.net>> 
> wrote:
>
>     I am in need of a schematic (or complete unit) for a timer that
>     will run
>     off +12v and pulse a relay every 15 mins. The relay should stay on for
>     10secs. I think it can be done with a dual 555, one for the 15mins and
>     the other for10secs.
>     Anyone got any ideas. I need this to turn on the TNC and
>     Transmitter for
>     a solar powered wx station I'm trying to build
>
>     Thanks
>
>     John
>
>     --
>     John Mc Hugh, K4AG
>     Coordinator for Amateur Radio
>     National Hurricane Center, WX4NHC
>     Home page:- http://www.wx4nhc.org
>
>
>
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-- 
John Mc Hugh, K4AG
Coordinator for Amateur Radio  
National Hurricane Center, WX4NHC
Home page:- http://www.wx4nhc.org

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