Jeremy wrote: > This one allows for Full-sized AT keyboard. Would that work? > http://www.matrixorbital.com/products/lk404-at.htm This is interesting ... it's a new product from matrix orbital. They don't mention the keyboard interface in the manual! This has potential but I wonder how it will behave as a "terminal" because there are issues about how lines are displayed and how backspace and all of that works. The other thing about these LCDs are that the controllers are not exactly small, they are two stacked PCB boards, so the overall bulk of the display is a bit cumbersome. Not the DB9 connector on the back, that would need to be removed I think otherwise you have a big connector on the back. I "flattened" one of the small LCDs from scott edwards by separating the two PCBs and connecting them with some ribbon cable. This way the display is very thin and the second PCB sits beside the other rather than stacked. This is the one that I hacked on: http://www.seetron.com/sgxmnl.htm Back to this matrix orbital LK404-AT ... in my opinion it would be better to use a microcontroller and write some code for interfacing both an LCD and PS/2 keyboard. This way you can tweak the behavior of the terminal. I am suspecting that the LK404-AT won't exactly work properly as a terminal when connected to a getty process (linux serial terminal). The other thing to consider is this: a normal console on a VGA monitor is 25 lines of 80 characters or 2000 characters per screen. The LK404-AT is 4x40 or 160 characters per screen. This is only two lines of console output, and the 40 character width is too small for many things, I know because I tried it. For a usable terminal as console you need more than 40 character width and more than 4 lines in my opinion. I saw one noritake display that had something like 16 lines of 50 characters ... this would give much better real estate ... that's 800 characters per screen or 40% of the real estate of a normal 80x25 terminal. Here's an application note for interfacing a PS/2 keyboard with a protean logic microcontroller http://www.protean-logic.com/applications/an039.pdf I have seen keyboard code for Atmel AVR microcontrollers in several places too. -- Doug -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" toWear-Hard Mailing List Archive (searchable): http://wearables.blu.org Please, *PLEASE* don't subscribe through a forward/expander/false domain
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