gnupic: Re: [gnupic] ethernet interface?
Subject:
Re: [gnupic] ethernet interface?
From:
John De villiers ####@####.####
Date:
17 Oct 2006 16:47:06 +0100
Message-Id: <1161100314.17771.4.camel@huge.inet>
I think i see where youre going.
The wrt54gl is already a fullblown pc, albeit mips based. Adding a
serial port ( and other i2c ) is reasonably painless. You want a
terminal emulator so run the wrt "in the field" without lugging a screen
( laptop ) around.
There is already such a device somewhere on the piclist site. Uses an
lcd screen ( 4x40 i think ) and a normal pc keyboard.
It hooks up on the serial port.
Not a bad idea actually. Small, almost hand-held wifi scanner.
John
On Sat, 2006-09-16 at 16:20 -0700, William Estrada wrote:
> To all,
>
> I knew as was writing my plan that I was not giving enough info about my plan.
>
> I want to create a 'Dumb Terminal' that can be used either from a serial port or
> an Ethernet address. Phase one will be the direct serial port connection. The next step
> would be adding Ethernet support. Without going into great detail, Phase One would not require
> any special software, Phase Two would.
>
> The target computer could be a WRT54G with the hardware serial mod. The plan is to build a
> very cheap network user interface. The user interface could be:
> 1) WRT54G with serial mod, running OpenWRT.
> 2) A keyboard
> 3) A video display/panel (1024x768).
> 4) The dump terminal interface ( This project ).
> All together should not cost more than $200 new.
>
> The biggest problem I see, is the PIC to video interface. And that is because my PIC
> experience is not all that great, but I think it can be done. I just need to get smarter.
>
> Granted that you can use a laptop but the cost is much higher per unit. The whole unit
> would be enclosed in a 'Tool Box' defined by the size of the display and keyboard.
>
> Sorry for not being more precise in the other postings.
>
>
> William Estrada
>
> Email : MrUmunhum at popdial dot com
> Resume : www.Mt-Umunhum-Wireless.net/resume/william_estrada.html
> HTTP : www.Mt-Umunhum-Wireless.net
>
>
> Alex Holden wrote:
> > On 16 Sep 2006, at 02:37, William Estrada wrote:
> >
> >> What I am researching is a 'Dumb Terminal Emulator" using PIC(s). I
> >> am using
> >> PICs to keep the cost down. I know I could use a simple laptop but I
> >> think I can
> >> build one for less than $100US not including the display? The plan
> >> is to use a Linksys WRT54G(S,L) with a serial mode or connected by
> >> Ethernet.
> >
> >
> > Why would you need an ethernet port on a terminal emulator? Or do you
> > mean you want a terminal server (in which case why would it need video?).
> >
> > Old terminal emulators are frequently given away. Terminal servers are
> > a bit more desirable, but I suspect you could probably get an 8 porter
> > for less than $100 on eBay.
> >
>
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