Re: Idea for IR zoning with HV

["andy_powell_is" <ukha@xxxxxxx>]

Keith,

I will be at the meet, and while I'm there if you want me to have 
your babies I will :D

Have you ever thought about doing some 'basic electronics for 
dickheads' (that's me the dickhead not you!!!) web pages or a book? 
You've explained 2 things to me that I've been unable to find out for 
myself via the web. I appreciate time is the key factor, but you know 
what you are doing!

Andy

--- In ukha_d@y..., "Keith Doxey" <lists.diyha@b...>
wrote:
> Will you be in London for the meet ?
> 
> If so I will knock one up and bring it along.....and it will be on
Veroboard
> :-)
> 
> Keith
> 
> www.diyha.co.uk
> www.kat5.tv
> 
> 
> -----Original Message-----
> From: andy_powell_is [mailto:ukha@b...]
> Sent: 28 April 2002 16:41
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Re: Idea for IR zoning with HV
> 
> 
> Keith,
> 
> Thanks, that makes it clearer... but as you can see from the
message
> I sent before this on... when it comes to electronics i seem to
get
> everything wrong :(
> 
> What I can see is the fact that this would work out a lot cheaper
> than the 250 odd quid asking price for the Homevision expansion
> board, however ... I'm a little scared at poking about with
> homevision's ports, it would be an expensive mistake if I buggered
> it - which makes the 250 odd quid not look too bad considering the
> cost of replacing my Homevision if I killed it.
> 
> Andy
> 
> --- In ukha_d@y..., "Keith Doxey" <lists.diyha@b...>
wrote:
> > Hi Andy,
> >
> > simple explanation coming up.....
> >
> > The IR LED requires power to emit infra red.
> >
> > This power is normally supplied from the IR out jack.
> >
> > There are two ways of supplying this power....
> >
> > 1. Switching the +5v supply and connecting the LED between that
and
> a
> > permanent ground.
> > 2. Supplying a permanent +5v supply and switching the ground.
> >
> > Either method will turn the LED Off and On.
> >
> 
> 
> 
> 
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