RE: Re: Temperature LCD thing

["Ward, David" <David.Ward@xxxxxxx>]

A colleague has several of these, he used them in a project with an 8051. =
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IIRC the serial output is pulse width encoded BCD as a continuos stream.
i.e. a '1' is represented by a longer pulse than a '0' ( or vice versa)
I think that he said that there is a slightly longer 'gap' between each
transmision to enable you to sync to the data.
He did mention that he had seen some code somewhere on the net that used a
standard serial port and 'descrambled' the data in software

I'll ask him when I next see him

Dave

> -----Original Message-----
> From:	Alistair Watkins [SMTP:ukha@xxxxxxx]
> Sent:	21 October 2003 17:39
> To:	ukha_d@xxxxxxx
> Subject:	[ukha_d] Re: Temperature LCD thing
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> Did anyone actually buy one of these??  I just bought one in the=20
> store (for =A36.99!) and the serial out looks to be trickier to use=20
> than i had hoped. and the promised details on how to read it are
just=20
> a mapping of the pulses and the timings...
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> thanks
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> ali
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> --- In ukha_d@xxxxxxx, Justin <justin@g...> wrote:
> > I see maplin has a LCD temperature/time module on its
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> list.
> > It has setpint triggers, serial out, external sensor
capability,=20
> other=20
> > stuff...for =A33.99!
> > http://tinyurl.com/qbo3
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> > Justin.
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> UKHA 2004: 15th and 16th May 2004
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