RE: IRDA repeater

["Ian B" <Ian@xxxxxxx>]

As a solution for those with an IRDA repeater problem maybe the relatively
high cost over a production unit is acceptable. After all, if there was a
production unit we would go and buy that instead! Needs must and all that.

Opinions welcome from those with this IRDA problem.

Ian - getting ready to visit the in-laws - depressing. And no play time -
suicidal ;-)

-----Original Message-----
From: Keith Doxey [mailto:ukha@xxxxxxx]
Sent: 12 January 2002 10:05
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] IRDA repeater


Hi Dave,

I have seen similar adapters before. They are OK for prototyping but not
really any good for production work as they are way too expensive.
>£5-00 to
hold a chip that costs about 3 or 4 quid just isnt viable. It also still
leaves you with the problem of actually having to solder  something that
you
(well "I" at least) cant see !

My eyes have deteriorated seriously over the last 3 or 4 years and I think
it is partially down to the fat that I spend far too much time at a
PC......
and the onset of age (42 in 3 months).

Keith

-----Original Message-----
From: Dave McLaughlin [mailto:dave@xxxxxxx]
Sent: 11 January 2002 23:43
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] IRDA repeater


Check out www.winslow.co.uk as they do SMT to DIP adaptors and you can
order
via the website. Min quantity though but they are good and you can get the
exact device type from the maxim datasheet.

Dave...

-----Original Message-----
From: Keith Doxey [mailto:ukha@xxxxxxx]
Sent: 11 January 2002 23:32
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] IRDA repeater


AAAAARRRGGGGHHHH !!!!!

They are the really small ones.

I have some Maxim samples like that as well (different chips but just as
unuseable).

Keith

-----Original Message-----
From: Ian B [mailto:Ian@xxxxxxx]
Sent: 11 January 2002 22:45
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] IRDA repeater


Here is a picture of the offending chips. One of each is required at each
end of the repeater. Not simple as you can see.

http://www.mollyology.com/WebPages/Home/Index.htm

under projects, IR repeater, third line from the bottom is a link

Ian

-----Original Message-----
From: Keith Doxey [mailto:ukha@xxxxxxx]
Sent: 11 January 2002 22:04
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] IRDA repeater


I soldered wire to the chips and then mounted them in an IC socket so that
I
could plug it into a breadboard.

You have to be REALLY quick at soldering the other end of the wire to the
IC
socket otherwise the heat travels to the chip, melts the solder and that
end
of the wire falls off.

How do I know this.....coz it happened to me :-(

Watch out for shorts and burnt fingers as well. Bloody surface mount. ring
back tagstrips on 0.25 inch centres!!!

As for small, normal surface mount is useable compared to the ultrasmall
stuff they are doing now.

Keith

-----Original Message-----
From: Ian B [mailto:Ian@xxxxxxx]
Sent: 11 January 2002 19:40
To: Ukha_d
Subject: [ukha_d] IRDA repeater


Well guys and gals

The chips I ordered to try playing with turned up today and guess what, two
of the three are surface mount. Apart from soldering wires to the pins does
anyone have any idea how to attach these things. To say they are tiny is an
understatement. I am not sure my soldering skills are up to it.

Ideas please

Ian



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