[Noisebridge-discuss] Low cost, low resolution, large LCD displays?

Taylor Alexander tlalexander at gmail.com
Fri Feb 18 20:22:52 UTC 2011

Yeah projectors certainly have some issues. Just getting them aligned with a
wall can be a big PITA. At least compared to hanging an LCD.

Halted usually has lots of old LCDs but they aren't always cheap, and may
lack documentation.

You can also get some really cheap Android tablets. Amazon has an el-cheapo
Augen 7" tablet for $139.

You could hook those up to your wifi, set up a local Apache server, and
create web pages with the info you need. Then just leave the appropriate web
page loaded and disable sleep. Android supports Ajax and whatnot, so you can
have the data update without a refresh. I have some example code I did for
just that if you're not familiar. Specifically the code (C# on windows, but
anything that can do HTTP POST would work) took data from a local serial
port and pushed it to a web page (PHP script, which could be hosted
anywhere) that updated a database file. The web page itself just sat there
and constantly updated its text based on the database, in real time without
page refreshes. It was a neat experiment.

I learned all that stuff in a couple of days of googling, so even if you've
never done it, I can assure you its easy.


On Fri, Feb 18, 2011 at 12:12 PM, Corey McGuire <coreyfro at coreyfro.com>wrote:

> PICO DLP's suffer only the volume problem as you described it.
> On Fri, Feb 18, 2011 at 12:10 PM, Rubin Abdi <rubin at starset.net> wrote:
>> Taylor Alexander wrote, On 20110218 120058:
>> > Would a projector work? One projector far away with the data put into
>> small
>> > rectangles so they appear to be small screens? It would certainly reduce
>> the
>> > complexity of the system if that were an option.
>> Projectors require the space between it and the display surface to be
>> unobstructed, thusly creating an 3d area for it to exist, which I don't
>> want. I'd like to put this sort of setup in smaller spaces where you
>> might pass by it, like a hallway or stairwell, or some such.
>> Additionally projectors have more upkeep then a crap LCD, cannot stay on
>> for long periods of time, for the most part require a fan to operate,
>> and cannot instantaneously turn on/off.
>> --
>> Rubin Abdi
>> rubin at starset.net
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