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'[EE:]Source chips with I2C 2x16 or 1x16 LCD displa'
2004\05\31@041413 by Hopkins

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Trying to source LCD displays 2x16 or 1x16 with I2C interface.

Thanks in advance Roy


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2004\05\31@042904 by Hopkins

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Ahhhhh just found the answer to my own question on LCD displays and that is
to use the Philips PCF8574 8 bit I/O expander or PCF8575 16 bit I/O
extender.

:-)))) Roy thanks to myself LOL


Trying to source LCD displays 2x16 or 1x16 with I2C interface.

Thanks in advance Roy





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'[EE:]Source chips with I2C 2x16 or 1x16 LCD displa'
2004\06\02@052924 by jsand
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Hello Roy & PIC.ers,


>Date:    Mon, 31 May 2004 20:27:20 +1200
>From:    Hopkins <spam_OUTrdhopkinsTakeThisOuTspamIHUG.CO.NZ>
>Subject: Re: [EE:]Source chips with I2C 2x16 or 1x16 LCD display
>
>Ahhhhh just found the answer to my own question on LCD displays and that is
>to use the Philips PCF8574 8 bit I/O expander or PCF8575 16 bit I/O
>extender.
>
>:-)))) Roy thanks to myself LOL
>
>
>Trying to source LCD displays 2x16 or 1x16 with I2C interface.
>
>Thanks in advance Roy
>


You answered the question yourself, before I had the chance to send my reply.
Just the same answer too...    : )

I've been doing this in products here for +/- 4 years and find it working very
well.
There's an economic trade-off though,  PCF8574s aren't the cheapest solution
around if you just want to send data to an LCD, but if your product is low
volume high-added-value (as here) then it doesn't matter.

The benefit is that you can come anytime in the future and add the likes of
RTCs, temperature inputs, LED pilots, switch interfaces yaydya or whatever
your (paying   8p)   ) customers dream up for you.



       best regards,   John

email from the desk of John Sanderson.
JS Controls, PO Box 1887, Boksburg 1460, Rep. of S. Africa.
Tel/Fax 011 893 4154,
Cell 082 741 6275,
web    http://www.jscontrols.co.za
Manufacturer & purveyor of laboratory force testing apparatus &
related products & services.

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