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'[EE]:Source for RED backlit alpha-numeric displays'
2007\02\28@114419 by Joe McCauley

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The title says it all mostly. I'm building a project to be used at night
(for astromomy), so it should ideally be red lit so as not to mess up night
vision. I need to display more info than I can reasonably do with a 7 seg
display. Cost & pin usage on the PIC are an issue as always, so I was hoping
to do this using an alphanumeric display in 4 pin mode.

16x2 would do, but smaller might work out too. Did I mention it has to be
cheap? :)

Joe

PS. Sorry if this appears twice, I neglected the tag first time round.

2007\02\28@120841 by Alan B. Pearce

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>The title says it all mostly. I'm building a project to be used at night
>(for astromomy), so it should ideally be red lit so as not to mess up night
>vision. I need to display more info than I can reasonably do with a 7 seg
>display. Cost & pin usage on the PIC are an issue as always, so I was
>hoping
>to do this using an alphanumeric display in 4 pin mode.
>
>16x2 would do, but smaller might work out too. Did I mention it has to be
>cheap? :)

My first thought when reading the title was to use a plasma display. But
they would be reasonably power hungry.

I would get whatever suitable LCD display I could, and exchange the
backlighting LEDs for red ones.

IIRC Jinx has played with this, and had some pictures on his web site.

2007\02\28@121809 by Bob Blick

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How about this:
http://www.crystalfontz.com/products/1602a-color/index.html#CFAH1602ARGHJP

--- Joe McCauley <spam_OUTjoe.mccauleyTakeThisOuTspamtcd.ie> wrote:

{Quote hidden}

2007\02\28@124839 by Mike Harrison

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face
On Wed, 28 Feb 2007 16:44:16 -0000, you wrote:

>
>The title says it all mostly. I'm building a project to be used at night
>(for astromomy), so it should ideally be red lit so as not to mess up night
>vision. I need to display more info than I can reasonably do with a 7 seg
>display. Cost & pin usage on the PIC are an issue as always, so I was hoping
>to do this using an alphanumeric display in 4 pin mode.
>
>16x2 would do, but smaller might work out too. Did I mention it has to be
>cheap? :)
>
>Joe
>
>PS. Sorry if this appears twice, I neglected the tag first time round.

http://www.sparkfun.com/commerce/product_info.php?products_id=791

2007\02\28@144857 by Peter Todd

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On Wed, Feb 28, 2007 at 04:44:16PM -0000, Joe McCauley wrote:
>  
> The title says it all mostly. I'm building a project to be used at night
> (for astromomy), so it should ideally be red lit so as not to mess up night
> vision. I need to display more info than I can reasonably do with a 7 seg
> display. Cost & pin usage on the PIC are an issue as always, so I was hoping
> to do this using an alphanumeric display in 4 pin mode.
>
> 16x2 would do, but smaller might work out too. Did I mention it has to be
> cheap? :)

Look up this # on digikey: 516-1180-5-ND

5x7 character displays by 4 characters for that one and I think they
have 16 character modules. Very easy to interface, simply a serial bit
stream.

Could be too expensive though... and they're tiny!

--
http://www.petertodd.ca

2007\02\28@154011 by Steve Smith

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face
Try Varitronix

http://www.varitronix.com/Product/character/VL-FS-MDLS162S65D-29.pdf

That's an amber / blue one theres loads of tehm

Steve

{Original Message removed}

2007\02\28@160707 by Jinx

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> I would get whatever suitable LCD display I could, and exchange
> the backlighting LEDs for red ones

AIUI that is for the very mechanically adept only. I've never been
game enough to make a $30 mistake. So it is possible to do that ?

> IIRC Jinx has played with this, and had some pictures

That was for the panel displays

http://home.clear.net.nz/pages/joecolquitt/led+lcd.html

which does work wonderfully well and is used often


'[EE]:Source for RED backlit alpha-numeric displays'
2007\03\01@052016 by Joe McCauley
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Thanks for all the pointers folks. I'm not brave enough to take one apart &
swap LEDs, so I'll see if Sparkfun will ship to Ireland. I can finish the
code using one of my standard displays.

Joe

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