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'Source for RED backlit alpha-numeric displays????'
2007\02\28@044302 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

2007\02\28@081438 by PicDude

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The only red I've found is from ww.crystalfontz.com .  They're not cheap IMO,
but perhaps your standards of cheap are different if you drive a Rolls
Royce. :)

-Neil.



On Wednesday 28 February 2007 03:42, 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? :)
>
> Joe

2007\02\28@162133 by John La Rooy

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Sounds like you're going to be reading it in the dark, you could try a
non-backlit 16x2 and "side light" it with a couple of red LED at each end.
Fiddly to get even illumination though.

John La Rooy

2007\02\28@174704 by Robert Rolf

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If you want 'cheap' you're probably going to have to buy a mass produced
backlit LCD and then change out the LEDs or just put it behind a red gell (or
plastic faceplate). Thats what we did (gell) for the 'sky commander' telescope
controller we bought for our astronomy club. (Backlite amber display).

Robert

John La Rooy wrote:
> Sounds like you're going to be reading it in the dark, you could try a
> non-backlit 16x2 and "side light" it with a couple of red LED at each end.
> Fiddly to get even illumination though.
>
> John La Rooy

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