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PC Configurable P89V51RD2 based Digital Clock Displaying the Day, Date, Time, and Temperature on a 128x64 Graphical LCD Module

Published on December 2013 by Vikrant Verma, Vivek Kumar, Naveen Yadav
journal_cover_thumbnail

Recent Trends in Electronics and Communication 2013
Foundation of Computer Science USA
RTEC - Number 1
December 2013
Authors: Vikrant Verma, Vivek Kumar, Naveen Yadav
45bcc8ea-0f87-44fa-b40a-ce3cc7cc6ac9

Vikrant Verma, Vivek Kumar, Naveen Yadav . PC Configurable P89V51RD2 based Digital Clock Displaying the Day, Date, Time, and Temperature on a 128x64 Graphical LCD Module. Recent Trends in Electronics and Communication 2013. RTEC, 1 (December 2013), 26-30.

@article{
author = { Vikrant Verma, Vivek Kumar, Naveen Yadav },
title = { PC Configurable P89V51RD2 based Digital Clock Displaying the Day, Date, Time, and Temperature on a 128x64 Graphical LCD Module },
journal = { Recent Trends in Electronics and Communication 2013 },
issue_date = { December 2013 },
volume = { RTEC },
number = { 1 },
month = { December },
year = { 2013 },
issn = 0975-8887,
pages = { 26-30 },
numpages = 5,
url = { /proceedings/rtec/number1/14775-1333/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 Recent Trends in Electronics and Communication 2013
%A Vikrant Verma
%A Vivek Kumar
%A Naveen Yadav
%T PC Configurable P89V51RD2 based Digital Clock Displaying the Day, Date, Time, and Temperature on a 128x64 Graphical LCD Module
%J Recent Trends in Electronics and Communication 2013
%@ 0975-8887
%V RTEC
%N 1
%P 26-30
%D 2013
%I International Journal of Computer Applications
Abstract

This study discusses about the designing of a real time, PC configurable standalone digital clock implemented on a 128x64 graphical LCD and built around an eight bit microcontroller. The graphical LCD is interfaced with an 8051 core microcontroller. Also a temperature sensor LM35 via ADC and a serial Real Time Clock chip DS1307 via I2C protocol are interfaced to the microcontroller to display the day, date, time and temperature with variable font size onto the graphical LCD module. The digital clock implemented here is provided a power backup facility through a CMOS battery for time updating during power cut. The clock can be configured by connecting it to the COM port of PC and writing in a particular format into the HyperTerminal. The digital clock can be implemented as a subsystem and fits into many real time switching applications just like biometric attendance system, etc.

References
  1. "Designing Smart Multipurpose Digital Clock using Real Time Clock (RTC) and PIC Microcontroller". International Journal of Computer Applications (0975 – 8887) Volume 41– No. 9, March 2012.
  2. How digital clock works (online). Available: http://electronics. howstuffworks. com/gadgets/clocks-watches/digital-clock1. htm
  3. Pan Thu Tun, "Development and Implementation of Microcontroller-based Digital Clock", World Academy of Science Engineering and Technology 42 2008, pp: 362-365.
  4. DS1307 RTC Real time clock (online). Available:http://www. ladyada. net/learn/breakoutplus/ds1307rtc. html.
  5. Display Real Time Clock (RTC) On LCD, 5 February2012. Available:http://www. cytron. com. my/attachment/Details%20Description/PR12%20v4. pdf
  6. LM35DZ Available: http://www. alldatasheet. net/ datasheet -pdf/pdf/8875/NSC/ LM35DZ. html
  7. Sagar. G. Yadav, K. A. Narayanankutty, "A Versatile Industrial Timer and Real Time Keeper", Wireless Engineering and Technology, 2011, 2, 196-203.
  8. M. A. Mazidi, J. G. Mazidi, R. D. McKinlay, The 8051 Microcontroller and Embedded Systems, Pearson Education, 2009.
  9. Robert L. Boylestad, Louis Nashelsky, Electronic Devices and Circuit Theory. 6th ed. Printed by Prentice-Hall, Inc.
Index Terms

Computer Science
Information Sciences

Keywords

Rtc Graphical Lcd I2c Protocol Microcontroller Temperature Sensor.