hi,
does anyone know any 1" graphical lcds that have a serial interface? why serial? well i need to interface about 24 to my pc, and i have never seen a paralell to usb converter that worked on anything but printers
oh and i need a program that will allow me to "upload" images or text to them too
kinda a weird request i know, but i am looking to make somthing weird....
well, anything kinda related would be really appreciated, oh, and they dont have to be exactly 1"
I cant help you but i really want to know what you are building.
ordinery monocrome, i can give you some advice n help, but getting them serial so you easily interface 24...... well usb -> other serial convertors always have issues (see nyquist principle) enless their good quality, generally expensive ones.
You could use some low end micro's (such as arazona microchip PIC MCU).
but whats all this for
throw new ArgumentException (String, String, Exception)
or you could just set fire to your money!Originally Posted by mort-uk
MO, over priced, under featured, ****.
throw new ArgumentException (String, String, Exception)
are you talking about that optimus keyboard?If you are building a keyboard its already being done
no, i am not building a keyboard, i am building somthing kinda like a keypad, that i can use with my yoke or stick as using a keyboard at the same time is a pain in the but.... and i am hoping it will be cheaper than £200 as well....
as for conversion, yeah, it could be a problem, i have seen some guides on how to build a converter using one of those new fangled usb enabled PICs though
and matrix orbital dont do anything small enough....
could anyone give me an idea what sort of controller needs to be in a lcd for it to be serial (or usb preferably) compatable?
hmm, myself, i'd use the LPT port for something like this so i could "bang" the data out fast enough.
the new fangled USB pics are easy enough, but its not best to start there (by the fact you called them new + fangled, i'm assuming your not into your uC's).
What is it your wanting to display, images, text, animation? What sorta bandwidth are we looking at here?
as your wanting 20, you don't have a problem ordering from the likes of farnell or digikey. If you tell us what your doing. In detail. Concept drawings and all, we can advise you.
throw new ArgumentException (String, String, Exception)
uh, i dont have any concept drawings right now but i will try to explain it the best i can
basically, i want to make a keypad that can sit next to my yoke or stick that will on each key have a lcd showing a still image on each signifying what each button is keymapped to do. i will probabally hack apart a old keyboard to make it, i have done that before to make a large gamepad. i was thinking serial really because you can get usb to serial convertors (basically virtual serial ports), and although you can get usb to parallel convertors they only work with printers IIRC
uh, i have tried my best to explain, thanks for your help so far
look at the optimus keyboard project (optimus/untramagnus - I see a theme)
It is Inevitable.....
usb to serial ones are terrible.
making the LCDs tactile is quite hard, i'd use capacitance sensing maybe? As the mechanics for having each one move is very difficult task. You could also use touch screen technology (two layers of semi conductor).
For this money, i'd want animations on each one. I'd use a whole plaforoa of low end micro's, i prefer PICs to atmels (cheaper!), and then have one MASTER thats on USB, it would provide all the keyboard signals itself, as a HID (human input device).
have a look at farnell.co.uk try and find some graphic LCD that does what you want.
throw new ArgumentException (String, String, Exception)
TheAnimus that is beyond my current skill level at the moment
i was just going to have each one mounted on a push button switch with the wire behind it.
i have ordered from farnell before and have their paper catalouge so i will take a look later
ikonia: heh, yeah
mounting each one on a push button will be more complicated, and more expensive than using capacitive sensing. (its REALLY easy).
how much are you thinking to spend on this project, if your not careful u'll be taking £1,000.
throw new ArgumentException (String, String, Exception)
Whats wrong with stickers?
They have more features than most lcds so I don't know what your complaining about them for.
If you are wanting something like the one in the first post try a noritake vfd they would fit the bill
There an LCD, thats it, GPIO pins + software don't merrit the money they want.
the thing is you can actually BUY better quality LCDs that are LCDs for less. What i mean by that is instead of insesant value adding (which is only valued by morons, you shouldn't start interfacing anything that touches your computer if you can't figure out how to expose a "GPIO" pin for a lot less money) they miss the mark of making a good quality low cost LCD.
Their tacked on controllers are damn slow too.
thats what i mean
throw new ArgumentException (String, String, Exception)
There not in it to make a low cost lcd I imagine as there is no money in it. The controllers are perfectly fast I've never suffered any problems with them.
Most people want something that they can plug into there computer and have it setup in 10mins at the very most mo and cf fill this niche.
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