Alt-BEAM Archive
Message #09542
To: beam@sgiblab.sgi.com
From: "Timothy Flytcher" flytch@hotmail.com
Date: Wed, 26 Jan 2000 00:11:34 PST
Subject: [alt-beam] Re: Wayyy off topic question about LCD monitors
Sure Sparky,
it is possible ... just build a decoder and a driver ... it could easy cost
5 - 10 times more than what is available commercially... But apart form a
costly parts list it is not all that hard to build... just think of it as a
"name tag" on a grand scale that is continually reprogrammed... ;)
Timothy...
>does anyone know if it is at all posible to convert an LCd comp screen,
>(like from an old laptop) into a video monitor? (for say a VCR or video
>cam)
>thanks for any input.
>
>-Sparky
>
______________________________________________________
9543 Wed, 26 Jan 2000 03:56:21 -0800 (PST) [alt-beam] Re: fido beam@sgiblab.sgi.com Evan Dudzik well, for a couple of dollars at a store near me
(about 2 bucks) I can buy one of those that goes on a
TV remote, you could take it apart and look at the
circuit.
--- Stephane Achkar wrote:
> I know this might not be perfect for beam
> applications, but here goes...
> I'm looking for a circuit that I saw once but that
> seems to have dissapeared: simply put, when you
> whissle, it beeps back. You've maybe seen it as
> part of a "find your lost keychain" device.
>
> The reason i was asking was to try to incorporate it
> onto a beam robot and let it roam about my house,
> having it return and/or respond to me when searching
> for it. I know its probably complicated for nothing
> but... isn't it all?
>
> anyways, i would apreciate any advice / comments on
> the idea and more importantly if anyone has seen or
> has such a circuit, let me know.
>
> Many thanks
>
> Stephane Achkar
>
=====
+------------------------+
|http://surf.to/photovore|
|Photovores online! |
|Evandude Dudzik |
+------------------------+
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9544 Wed, 26 Jan 2000 07:36:17 EST [alt-beam] Re: fido beam@sgiblab.sgi.com Toby503@aol.com I remember seeing in the magazine "things you never knew existed" there was a
keychain so when you whistle it would give off a tone.
Rusty
"This message will self-destruct in 10 seconds.........."
9545 Wed, 26 Jan 2000 07:12:07 -0800 [alt-beam] Re: RC Oscillator Required "'beam@sgiblab.sgi.com'" Wilf Rigter http://www.wollongong.apana.org.au/~ben/elec250/transmitter.mod.gif
the bit in blue is the oscillator. Change the 100K for 5.6M for generating a
square wave and adjust the 3.9M and 3.3uf cap for frequency (2M and 0.33uf).
Works down to 2V.
wilf
> -----Original Message-----
> From: Elmo [SMTP:elmo@ilid.com.au]
> Sent: Tuesday, January 25, 2000 9:39 PM
> To: Beam Mailing List
> Subject: RC Oscillator Required
>
> Hi there, Elmo here again looking for some design help.
>
> I need a simple RC oscillator circuit, that can produce a 2Hz sine or
> square wave. Ordinarily i would use a 74HCxxx and build one that way,
> but i want to drive some level meters which only require about 1 - 2V @
> 1mA - 10mA, so i think that having to charge up to 3V just to run the
> chip is a bit of a waste. The 2Hz wave doesn't even have to be stable.
> It can deviate from the 2Hz a bit and still be acceptable.
>
> Thanks for any help
>
> Elmo
>
9546 Wed, 26 Jan 2000 09:15:17 -0600 [alt-beam] Re: Wayyy off topic question about LCD monitors beam@sgiblab.sgi.com SG really? the best ive found so far is a 3" screen that Citizen makes. The
cheapest you can get it for is $150. i was hoping for a little bigger
screen and spending about that much. hence, convert an old laptop screen.
but i guess you have to build a power supply, a driver, and watever else.
-Sparky.
At 12:48 AM 1/26/00 -0500, you wrote:
>I'd love to help you, but unless you just want to do it, and you just love a
>unwinnable fight, it's just not worth it. Seriously, you can buy little LCD
>video screens for alot less than you can convert one.
>
>dennison
>
>
>does anyone know if it is at all posible to convert an LCd comp screen,
>(like from an old laptop) into a video monitor? (for say a VCR or video
>cam)
>thanks for any input.
>
>-Sparky
>
>
>
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