i have very big problem to interfacing key pad with at89s52 with lcd. how is the asm code for this. i want to use keypad as when i press any key it should show on lcd.

if you will help me i will always greatful to you.
thanks
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to get information about the topic lcd interfacing with 8051 microcontroller related topic refer the page link bellow

http://seminarsprojects.net/Thread-interfacing-gsm-mobile-to-pc-to-send-the-sms-from-pc ....etc

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its goodre you looking for lcd interfacing with 8051 microcontroller pdf ?
Type your request / requirement / comment about lcd interfacing with 8051 microcontroller pdf in to the right box for getting free material and support from us/dedicated premium ....etc

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Abstract:
This Project defines a digital stop watch built around timer IC LM555 and 4-digit counter IC MM74C926 with multiplexed 7-segment LED display.MM74C926 consists of a 4-digit counter, an internal output latch, npn output sourcing drivers for common cathode,7-segment display and an internal multiplexing circuitry with four multiplexing outputs.
The counter advances on negative edge of the clock. The clock is generated by timer IC LM555.The circuit works off a 5V power supply. It can be easily assembled o ....etc

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i want a ppt on interfacing a 4-wire resistive touchscreen with ATMega16 microcontroller and an lcd,and by this making a program related to display numbers and alphabets on lcd by typing them on touchscreen.so plz help ....etc

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Abstract

A keypad consists of 3 columns and 4 rows, hence the name, whenever the user taps one button, the column and the row corresponding to that button are shorted, for example, if a user chooses to tap the 5 button, col2 and row2 are shorted, if a users picks 0 button, col2 and row4 are shorted, and so on.

So how do you read a keypad using a Microcontroller?
the method used to read such input is called Scanning, you connect the rows and the columns to the microcontroller, you set the columns as outputs, rows as inputs (or vice versa) ....etc

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hello sir,,
i want C code/ Assembly language for LCD based stopwatch using 8051 with circuit daigram. Can you help me out.

reply me on [email protected] ....etc

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Now iPad is quite popular among people though it has been sold for only a few months. Every one who got iPad are very proud.

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ppt for keyboard interfacing with 8051
ppt for keyboard interfacing with 8051 ....etc

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To get full information or details of stop watch using atmelat 89c51 please have a look on the pages

http://seminarsprojects.net/Thread-digital-stopwatch

http://seminarsprojects.net/Thread-simple-digital-stopwatch-using-at89s51-microcontroller

if you again feel trouble on stop watch using atmelat 89c51 please reply in that page and ask specific fields in stop watch using atmelat 89c51 ....etc

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