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RE: IR Transmitter boards.
- To: "'ukha_d@xxxxxxx'" <ukha_d@xxxxxxx>
- Subject: RE: IR Transmitter boards.
- From: James Hoye <jhoye@xxxxxxx>
- Date: Thu, 23 Nov 2000 15:16:30 -0000
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
> >As it's pretty easy to fry a 555, can I suggest (if
> possible) you make
> >provision for a diode to offer some protection?
>
> No problem - just send the circuit mods and I will
> incorporate them. I can't
> claim to understand exactly how it works yet but I'm game.
I can't generate any diagrams - I loaded Eagle stuff on my machine and a
couple of days later NT decided it was going to corrupt my registry. Until
I reinstall everything, I'm stuck with a crappy laptop with no space to
install useful stuff. Maybe Nigel/Keith can generate an image.
> >Screw terminals (like alarm panels) would be OK I'd have thought.
> >https://catalogue.maplin.co.uk/Pictures/20/3/97NE01B.JPG
> Screw terminals would work fine but they would make the board
> bigger - what
> do you think?
Something that doesn't require special crimping tools would be best.
> Cost should not be a issue - also depends whether you want
> them drilled or
> not. This was the worst bit on the prototype prototype (OK, I
> broke it! (the
> board track not the drill)). As I said this is not a
> commercial exercise.
> Just a learning experience for me and some fun.
If drilling, then the pitch should match the connectors. I don't know (I
assume there are) if there are standard pitches for connectors. Obviously
everyone doesn't necessarily have access to a M*****s. You could always
sell the board and connectors as a kit for a small amount to cover costs
(are you near a M*********?).
> Lastly, how would you like them housed and is size an issue?
> Looks like
> custom requirements aren't going to be a problem!
I'm intending to house the receiver in a 25mm single gang metal box, and
the
transmitter could either go in this box too or a 1 or 2 gang 25-47mm
plastic
box in the loft. As long as it fits in one of these I'm going to be happy!
James H
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