Homebrew PCBs

----- Original Message ----- 

From: "Howard" <hj.payne@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Saturday, June 07, 2008 4:04 PM
Subject: [SPAM] [Homebrew_PCBs] Re: HELP: UV Light box


>>
> Hi
> Thats why i would want it to have a shut off relay
> just looking around the net at the mo!

I was actually thinking of designing one, if you can't find anything 
suitable. It'd use a small PIC and a couple of LED displays, with a 
push-button or two for setting the time. The internal oscillator is good for 
1%, so it won't need a crystal.

Leon
--
Leon Heller
Amateur radio call-sign  G1HSM
Yaesu FT-817ND transceiver
Suzuki SV1000S motorcycle
leon355@...
http://www.geocities.com/leon_heller

--- In Homebrew_PCBs@yahoogroups.com, "Leon" <leon355@...> wrote:
>
> ----- Original Message ----- 
> From: "Howard" <hj.payne@...>
> To: <Homebrew_PCBs@yahoogroups.com>
> Sent: Saturday, June 07, 2008 4:04 PM
> Subject: [SPAM] [Homebrew_PCBs] Re: HELP: UV Light box
> 
> 
> >>
> > Hi
> > Thats why i would want it to have a shut off relay
> > just looking around the net at the mo!
> 
> I was actually thinking of designing one, if you can't find 
anything 
> suitable. It'd use a small PIC and a couple of LED displays, with 
a 
> push-button or two for setting the time. The internal oscillator 
is good for 
> 1%, so it won't need a crystal.
> 
> Leon
> --
> Leon Heller
> Amateur radio call-sign  G1HSM
> Yaesu FT-817ND transceiver
> Suzuki SV1000S motorcycle
> leon355@...
> http://www.geocities.com/leon_heller
>
Hi Leon
Well if you would like to design one that would be great!!
look forward to hearing from you soon.
Thanks
Howard

On Sat, 7 Jun 2008 16:25:07 +0100, you wrote:

>----- Original Message ----- 
>From: "Howard" <hj.payne@...>
>To: <Homebrew_PCBs@yahoogroups.com>
>Sent: Saturday, June 07, 2008 4:04 PM
>I was actually thinking of designing one, if you can't find anything 
>suitable. It'd use a small PIC and a couple of LED displays, with a 
>push-button or two for setting the time. The internal oscillator is good for 
>1%, so it won't need a crystal.
>
>Leon
There was a nice set of plans in September 2007 issue of Everyday
Practical Electronics magazine Vol.36 No.9. It was called a
"Programmable Flextimer". Uses a PIC16F84A. The .hex file is available
from their WEBsite; no source though 8:(. It was a reprint from
silicon chip magazine.
http://www.epemat.co.uk      http://www.siliconchip.com.au

Direct link to article here

http://www.siliconchip.com.au/cms/A_105013/article.html


kabowers wrote:

> There was a nice set of plans in September 2007 issue of Everyday
> Practical Electronics magazine Vol.36 No.9. It was called a
> "Programmable Flextimer". Uses a PIC16F84A. The .hex file is available
> from their WEBsite; no source though 8:(. It was a reprint from
> silicon chip magazine.

and there is a simplified version of that particular timer in the 
current June issue of Silicon Chip. Only available as kit from Jaycar 
Electronics though and if similar to the situation with their other 
recent kits, published many months before kits actually become available.

Bill   VK7MX

kabowers@... wrote:

> On Sat, 7 Jun 2008 16:25:07 +0100, you wrote:
>
>   
>> ----- Original Message ----- 
>> From: "Howard" <hj.payne@...>
>> To: <Homebrew_PCBs@yahoogroups.com>
>> Sent: Saturday, June 07, 2008 4:04 PM
>> I was actually thinking of designing one, if you can't find anything 
>> suitable. It'd use a small PIC and a couple of LED displays, with a 
>> push-button or two for setting the time. The internal oscillator is good for 
>> 1%, so it won't need a crystal.
>>
>> Leon
>>     
> There was a nice set of plans in September 2007 issue of Everyday
> Practical Electronics magazine Vol.36 No.9. It was called a
> "Programmable Flextimer". Uses a PIC16F84A. The .hex file is available
> from their WEBsite; no source though 8:(. It was a reprint from
> silicon chip magazine.
> http://www.epemat.co.uk      http://www.siliconchip.com.au
>
>
> ------------------------------------
>
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
>
>
>
>

And here is the link to Jaycar's flexitimer:

   Flexitimer 
<http://www.jaycar.com.au/productView.asp?ID=KA1732&CATID=25&keywords=&SPECIAL=&form=CAT&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=335>

  All you might need to do (depending on your exposure box) is arrange 
for 12-15V DC and/or a heavier duty relay to switch the power to the UV 
source.

Trev

Bill Maxwell wrote:

> and there is a simplified version of that particular timer in the
> current June issue of Silicon Chip. Only available as kit from Jaycar
> Electronics though and if similar to the situation with their other
> recent kits, published many months before kits actually become available.
>
> Bill VK7MX
>
> kabowers@... <mailto:kabowers%40NorthState.net> wrote:
> > On Sat, 7 Jun 2008 16:25:07 +0100, you wrote:
> >
> >
> >> ----- Original Message -----
> >> From: "Howard" <hj.payne@... <mailto:hj.payne%40ntlworld.com>>
> >> To: <Homebrew_PCBs@yahoogroups.com 
> <mailto:Homebrew_PCBs%40yahoogroups.com>>
> >> Sent: Saturday, June 07, 2008 4:04 PM
> >> I was actually thinking of designing one, if you can't find anything
> >> suitable. It'd use a small PIC and a couple of LED displays, with a
> >> push-button or two for setting the time. The internal oscillator is 
> good for
> >> 1%, so it won't need a crystal.
> >>
> >> Leon
> >>
> > There was a nice set of plans in September 2007 issue of Everyday
> > Practical Electronics magazine Vol.36 No.9. It was called a
> > "Programmable Flextimer". Uses a PIC16F84A. The .hex file is available
> > from their WEBsite; no source though 8:(. It was a reprint from
> > silicon chip magazine.
> > http://www.epemat.co.uk <http://www.epemat.co.uk> 
> http://www.siliconchip.com.au <http://www.siliconchip.com.au>
> >
> >
> > ------------------------------------
> >
> > Be sure to visit the group home and check for new Links, Files, and 
> Photos:
> > http://groups.yahoo.com/group/Homebrew_PCBsYahoo 
> <http://groups.yahoo.com/group/Homebrew_PCBsYahoo>! Groups Links
> >
> >
> >
> >
> >
>
>  



[Non-text portions of this message have been removed]