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keypad+microC


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kasun

Thu Apr 03 2008, 09:28PM

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hi!
im doing a project of implementing text display. Im going to use pic16f877a and programming with MIKROC.
Im thinking of using the keypad available in the microc help. But there only 16 keys are available.
i need to use more than 16 keys
(that means if one key is pressed i need to have 3 interruptrs like in the phone keypad.so i can have 48 keys)
Thus can u please send me an example code required for that

kasun

Ajay

Fri Apr 04 2008, 03:13AM

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strange requirement.. you can rather scan all those 48 keys.. why you want to have interrupt?

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shyam

Fri Apr 04 2008, 09:15PM

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he has only 16 hardware keys ... he needs to multiplex those keys as in nokia phone keypads...
correct me if i understood wrong

lProgress is not made by early risers or hard workers, but by LAZY people, trying to find easier ways to do the same........


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helplease | 02 Dec : 09:32

guys can i ask how do u include reg_51.pdf and reg_52.pdf when compiling the program and burn?? reply asap

aryans | 02 Dec : 08:03

can some one xplain me this ckt diagram http://www.8051projects.net/forum-t15090-last.html

rajendrajain | 02 Dec : 07:10

hello... does ny1 have info abt powerline communication

Help | 02 Dec : 07:08

Hi Ajay... How are you?

sks | 02 Dec : 06:03

Hello Mr Ajay
good evening, there is a post for you
sks

sks | 02 Dec : 04:54

thanks Mr Arun
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Arun Kumar V | 02 Dec : 04:45

Hello sahuji,

Congrates ! on your Demo at the blind school

Rohithd | 02 Dec : 04:44

Hello All....
I need some information on how to connect serial device to my board and how to define the ports

sks | 02 Dec : 04:26

Hello Mr Arun,
good evening
sks

SANATH EMBEDDED | 02 Dec : 04:02

hi Ajay....

very gud evenng....thatzzz very easy name saumya linux in short (Saumyalnx)

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8051 Microcontroller Projects 8051 AVR tutorials PIC microcontroller, 8051 assembly language programming electronics and communication ECE CSE pdf ebooks library BE final year project ideas Embedded systems