Lcd

[lord loh.]

I am trying to use an LCD display for a microcontroller based Calculater.

However, I have no choice of modules. I have to customize my project according to the LCD available locally. I got a datasheet of a 18x1 module and it's pin-out appears no different than a RAM IC (E, R/W, D0..D7)

Is it any different if I use a 16X2 display? Can anyone suggest me a generic tutorial to understand the usage and interfacing of LCD modules in terms of both Hardware and software?

Thank you.

 

[Nigel Goodwin]

Check my PIC tutorial, almost all LCD text modules use the standard Hitachi chip set (or a clone of), so all work the same - bear in mind they are usually electrically 2x40, with the actual display a 'window' on that space.

 

[Matt(Pic progger)]

Have you got a link to your datasheet? Or can you scan it and upload it?

 

[lord loh.]

The trouble is, I have to first buy an LCD then look for the datasheet. And I shall be forced to use the LCD I get.... I have no choice.

So I am trying to learn a few basic things about LCDs so that I do not buy an LCD that ends up totally useless. According to what Nigel siad and a few sites I had seen, It looks like there shall be no such a thing as a totally usless LCD as long as I do not buy the type used in laptop screens....