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| Is this possible? http://forum.lcdinfo.com/viewtopic.php?f=6&t=1001 |
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| Author: | Carlo75 [ Sat Jan 22, 2005 4:52 ] |
| Post subject: | Is this possible? |
Hi I just got this Idea for making a homemade LCD I wanted to know if I could use a USB to printer Cable (adapter) to connect an 20x4 LCD to the USB port? The adapter was taken from a HP printer which was damaged... so it has one USB conector and a 36 pin male conector from the back of the printer... Since the adapter has a converter inside de parallel port casing I was wondering if this can be done? Thanks! |
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| Author: | coorz [ Sat Jan 22, 2005 8:23 ] |
| Post subject: | |
This has been suggested many times before, but never have i heard of anyone getting it to work. |
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| Author: | Syridian [ Sun Jan 23, 2005 2:18 ] |
| Post subject: | |
Actually... What you have ther might not even be a USB to Parrallel converter, it might just provide a USB to processor link right to the Printer CPU. You would have to play with it to workout whether you can get anything out of the Centronics connector.. which personally I doubt. Let us know how your testing goes. 
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| Author: | Carlo75 [ Mon Jan 24, 2005 7:26 ] |
| Post subject: | |
Syridian wrote: Actually...
What you have ther might not even be a USB to Parrallel converter, it might just provide a USB to processor link right to the Printer CPU. You would have to play with it to workout whether you can get anything out of the Centronics connector.. which personally I doubt. Let us know how your testing goes. You are right...the adapter gives USB printer support, but does not act as a second serial nor printer port... The chip in charge of doing the interface is an Agere Uss720, which I plan to use, maybe without plug and play circuitry of the adapter, but only the single chip. But I don´t know much about driver programing; and I will need something like that... The other idea is to use the agere chip to interface temperature sensors, but that´s another story... |
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