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[HOW-TO] Build a LCD Display and use it
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angelacb
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PostPosted: Sat Mar 20, 2004 10:37 pm    Post subject: Reply with quote

The blue type displays, anyone have any recommendations on where to buy them on the net and any recommendations + successful stories?

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PostPosted: Sat Mar 20, 2004 11:29 pm    Post subject: Reply with quote

http://www.crystalfontz.com
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angelacb
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PostPosted: Sun Mar 21, 2004 12:04 am    Post subject: Reply with quote

Hi,

Thanx for the quick reply, did you ever get the "CrystalFontz 634 USB LCD" working? Or is USB a no go? Also, if i don't buy the Mounting brackets, is there still a connector on the back of the PBC of the module for the USB/Serial cable to connect to? As i noticed some of the LCDs by other brands requires it's user to do some soldering with a bunch of cables and some other accessories in order to have the power cables and Serial/USB cable connected and working. Hehe, i'm new to this, so I don't want to buy anything wrong.

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PostPosted: Sun Mar 21, 2004 3:25 pm    Post subject: Reply with quote

well.... it did work.... till I moved it to a different box...
But, yes it works fine and requires NO wireing job...
Just plug in the USB cable and BOOM.. it works
LCDproc and such are a bit of a pain and you should really use the cvs versions of them to make sure it's supported
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angelacb
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PostPosted: Sun Mar 21, 2004 7:16 pm    Post subject: Reply with quote

Hi,

Nice, thanx a lot for the tips. You mentioned earlier about using LCDproc the cvs versions, does it support reading stats from kernel 2.6? As I checked out the source code of lcd4linux, they don't seems to support the new structure of the /proc setup where the disk io stats are all kept in /proc/diskstats in a different format. So i was wondering if LCDproc would support Kernel 2.6, as they don't mention anything of sort on their site.

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PostPosted: Mon Mar 22, 2004 3:32 am    Post subject: Reply with quote

no idea.... I used it with 2.4.23 I believe
Good luck....
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angelacb
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PostPosted: Wed Mar 24, 2004 8:01 am    Post subject: Reply with quote

Hi,

Just to say thanx for all your help. I bought the 634 USB model (which supports serial as well) and have all the connectors ready to use. Got it working right away with the config mentioned in lcd4linux. Except for a problem from the /proc/stat where now disk stats are all in /proc/diskstats but i believe they're working on a fix soon (hopefully).

:? the shipping from Fedex is pricy....lol... :oops:

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MadBassist
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PostPosted: Sun Jun 13, 2004 10:31 pm    Post subject: Reply with quote

there was a good article in a uk magazine called pc extreme detailing howto make an lcd, invert it AND backlight it all for like £35, to be fair im not too worried about fancy usb, parallel works ^_^ i even drilled a hole in a pci holding bracket thing (what are they really called) so the parallel cable can come out relatively neatly and theres not a huge hole in the case
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Apex
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PostPosted: Thu Jun 24, 2004 3:29 pm    Post subject: Reply with quote

I've bought myself the LCD, all I have to do now is... well uh, the rest. :lol:
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b0fh
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PostPosted: Fri Feb 18, 2005 10:33 pm    Post subject: Reply with quote

I'm looking for a lcd solution over usb, as my one and only parport is busy... I just found usblcd.de, but all displays are "out of stock". Is there any other linux-supported stuff for usb?
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Stolz
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PostPosted: Sat Feb 19, 2005 12:31 am    Post subject: Reply with quote

AFAIK, Crystalfontz USB LCDs (www.crystalfontz.com ) are supported with lcd4linux.
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Membris
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PostPosted: Wed Mar 09, 2005 3:41 pm    Post subject: Reply with quote

Hello guys, I have bought my second LCD but I can't get it working.

In order to maintain clean this topic, I created a new one.

https://forums.gentoo.org/viewtopic-p-2171219.html
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ticapix
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PostPosted: Wed Jan 04, 2006 12:21 pm    Post subject: Reply with quote

Hi

I found a HD44780 LCD on a dead copying machine. It will be really great on my gentoo server which have no screen.
I would like to make the hardware part but I can't find any simple schematic on the web.
Maybe guys, you have archives with the schematic of the first post of this thread or maybe another schematic that works.

Thanks your reply.

Pierre
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Stolz
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PostPosted: Wed Jan 04, 2006 12:24 pm    Post subject: Reply with quote

ticapix wrote:
Hi

I found a HD44780 LCD on a dead copying machine. It will be really great on my gentoo server which have no screen.
I would like to make the hardware part but I can't find any simple schematic on the web.
Maybe guys, you have archives with the schematic of the first post of this thread or maybe another schematic that works.

Thanks your reply.

Pierre

https://ssl.bulix.org/projects/lcd4linux/wiki/HD44780
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ticapix
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PostPosted: Wed Jan 04, 2006 3:50 pm    Post subject: Reply with quote

Stolz wrote:

https://ssl.bulix.org/projects/lcd4linux/wiki/HD44780


Ok

In order to keep it as simple as possible, I wil take this schematic: https://ssl.bulix.org/projects/lcd4linux/attachment/wiki/HD44780/multiple.png?format=raw where I remove connections for a second LCD.

I have only 14 pin so I guess that I have no backlight control, I don't need the wire connected to the pin 16 with the resistors, transistor et potentiometer, no ?

For the alimentation, can I use the power directly from my parport ? (If I check it is really 5V)

Thanks

Pierre
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Stolz
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PostPosted: Wed Jan 04, 2006 5:10 pm    Post subject: Reply with quote

It has been 2 years since I did the PCB for my LCD, so I can't remember all the details. If you want to get better support, I suggest you tu subscribe to lcd4linux's mail list :).

ticapix wrote:
I have only 14 pin so I guess that I have no backlight control, I don't need the wire connected to the pin 16 with the resistors, transistor et potentiometer, no ?

If i can trust in my memory, yes, you don't need this wire.

ticapix wrote:
For the alimentation, can I use the power directly from my parport ? (If I check it is really 5V)
AFAIK, parport doesn't include a stable 5V line, you have to get it form your computer's power supply. Some people get it from the USB, but I don't recommend it.
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Mattwolf7
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PostPosted: Thu Jan 19, 2006 3:23 am    Post subject: Reply with quote

Hey the images are not working, i found the orignal image here:

http://www.modding-faq.de/moddingfaq/lcd/lcdloeten/schaltplan.gif
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