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44780 connect to pc via usb to lpt cable?

Discussion about LCD's and other related hardware

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pranja
Posts: 5
Joined: June 10th, 2011, 2:09 pm

44780 connect to pc via usb to lpt cable?

Post by pranja »

Hi!
I purchased usb to lpt cable to connect my 44780 lcd. What should I do in Windows 7 (64 bit) to properly detect my lcd? What should i do in lcd smartie?
mattcro
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Re: 44780 connect to pc via usb to lpt cable?

Post by mattcro »

This is very unlikely to work. USB-to-LPT cables do not provide the full LPT port functions, they just emulate the basic print functions for Windows.

You need a real LPT port to interface with an LCD. You can get these as a PCI/PCIe card.

The alternative is to use a microcontroller to drive the LCD (home-brew electronics stuff) or try the LCD2USB adapter boards that are available to buy as kits or ready-built. You just wire up an LCD to the LCD2USB board and plug it in... you get a virtual serial (COM) port that Smartie can access. These projects are mentioned on this forum in various places.
pranja
Posts: 5
Joined: June 10th, 2011, 2:09 pm

Re: 44780 connect to pc via usb to lpt cable?

Post by pranja »

I have this cable: http://www.instar-informatika.hr/transm ... TRN-C147-L

Is here any chance it would work?
limbo
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Re: 44780 connect to pc via usb to lpt cable?

Post by limbo »

pranja wrote:I have this cable: http://www.instar-informatika.hr/transm ... TRN-C147-L
Is here any chance it would work?
No it wont work... Sorry to say that. :(

if you nee a simple solution check the FTDI UM245 solution http://forums.lcdsmartie.org/viewtopic.php?f=11&t=1540
pranja
Posts: 5
Joined: June 10th, 2011, 2:09 pm

Re: 44780 connect to pc via usb to lpt cable?

Post by pranja »

Can you tell me where can i purchase these drivers? I hope they are not too expensive.
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