newbie - lcd displays - wanting stand alone lcd display

nirol · Post by **nirol** » July 12th, 2005, 7:02 pm

I am wanting to build a stand alone display in a project box that when I push a button the display lights up with a preprogramed content. Should include a battery source. Is this kind of thing possible using smartie sw? Do I have to build a processor and usb inter-face to drive most lcd's. Are any smart enough to simply turn on and display preprogramed content? I think a 2x20 display would be fine for my project.

Post by **limbo** » July 12th, 2005, 8:59 pm

You mean a lcd screen that have build in some messages?
Without a connection to Computer?

Anyways

If so there are several ways to do this...
Using AVR Microprocessor e.g. AT90s2313 by Atmel....
This needs some electronics experience

to build it, but I have some links for this if you are interested about.

_X7JAY7X_ · Post by **_X7JAY7X_** » July 12th, 2005, 9:33 pm

This can be done easily with a microprocessor. What do you want it to say?

If you have any programming experience in assembly, c++, visual basic etc. you can get compilers to write programs for microcontrollers or atmels. I have done many things with PIC microcontrollers and LCD screens, i.e. temperature monitoring, simple messages, PLC Controller.

You could even write code that can read the flash memory of the PIC and display that, the cool thing about this is that you can hook it up to the computer and "download" a updated flash to change what the lcd says, without reprogramming the whole microcontroller.

If you want more information on doing this with PIC microcontroller PM or EMAIL me. I have no experience with ATMEL if that is the route you want to take.

J