AT90S2313 | AT90S8515 | ATMega | ATmega128 | ECL | FETS | IAR | Keyboard | LCD | STK50 | TMOS | UART

Hi dear friends,
In my project i'm using ATMEGA8515.I have to interface keypad and LCD for=
writing and reading data.anyone can suggest me which IC i can use for WR a=
nd RD pins in order to be able to do that.
I'm waiting for ur response.
Thanks,
Elham

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On Sun, 14 May 2006, elham raha wrote:

> Hi dear friends,
> In my project i'm using ATMEGA8515.I have to interface keypad and LCD
> for writing and reading data.anyone can suggest me which IC i can use
> for WR and RD pins in order to be able to do that.
> I'm waiting for ur response.
> Thanks,
> Elham
>

You only need 7 pins (plus ground) to interface any LCD module that uses
the HD44780 chip. You only need at most 8 pins for a 16-key keypad. You
should have room left over for other things.

Maybe tell us more about the project - just how many keys on the keypad,
what kind of LCD display did you have in mind?

Zack





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dear friend
if u use bascom or codevision u can connect the LCD an keypad without usein=
g RD and WR,u can see in a help of bascom.i think u use bascom so it's very=
easy.alsoo u can see it in AVR microcontrolers by Ali Kahe
have fun
elham raha wrote Hi dear friends,
In my project i'm using ATMEGA8515.I have to interface keypad and LCD fo=
r writing and reading data.anyone can suggest me which IC i can use for WR =
and RD pins in order to be able to do that.
I'm waiting for ur response.
Thanks,
Elham
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Love cheap thrills? Enjoy PC-to-Phone calls to 30+ countries for just 2=
=EF=BF=BD/min with Yahoo! Messenger with Voice.
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