Oct212009

AT89S51 based digital clock with date & time

This project gives you a simple digital clock with date & time over the 7segment led display. The circuit is made with AT89S51 microcontroller. The clock and date functions are derived without the RTC chip. The software timer is used for the clock functions.

Circuit diagram:

89251-digital-clock

Download the keil C code: clock-c-code.zip (177.82 kb)


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Comments


maria azhari

Response by maria azhari on 10/23/2009 4:22:29 AM

can i see the coding of AT89S51 based digital clock with date & time with assembly.




Sacyasachi

Response by Sacyasachi on 11/3/2009 9:32:58 PM

Have you tested it? How accurate is this? I just want to know more about it.




Karan

Response by Karan on 12/2/2009 2:49:44 AM

Where is the RTC chip/ DS1307 in the diagram ????




Karan

Response by Karan on 12/2/2009 3:18:16 AM

Hey ... I am not seeing TRC chip/DS1307 in the image.




Binu

Response by Binu on 12/2/2009 5:21:20 PM

This circuit used software timer for RTC.




Karan

Response by Karan on 12/3/2009 4:01:32 AM

Thanks for the reply Binu .... I need project for a Big LED clock using DS1307 and 8051 mcu ... please help me with this.

you can email me too..

Please ...




raj

Response by raj on 12/14/2009 1:54:19 AM

its ok, but how to add more digit display all function sem time




raj

Response by raj on 12/25/2009 5:19:11 AM

this is best,
im tested
i want all see function sem time
how to add more digit  




zhila

Response by zhila on 12/29/2009 2:45:07 AM

can i see the coding of AT89S51 based digital clock with date & time with assembly.




Irin

Response by Irin on 1/4/2010 6:21:14 PM

sir, i want a source code for the excellent project of password based door lock using at89c2059.




Ritika

Response by Ritika on 1/16/2010 3:35:26 AM

hello sir...i need source code for this wonderful project
plz rply soon plzzz




Srinivas

Response by Srinivas on 1/17/2010 2:31:05 AM

Hi nice Scematic and compiling code.
Do you have PCB schematic of the same?




solomon stev

Response by solomon stev on 2/18/2010 1:20:34 AM

thanks for your circuit, but it was too complicated. i need a more comprehensive circuit with the software.




@rian

Response by @rian on 2/24/2010 12:35:50 PM

hi all, plz help me out.
this is not working. please check the circuit diagram.bkz connection r wrong.i made it but it did not work in display.all the digit are running together.it forms some unknown letter.plz send us original connection.




@rian

Response by @rian on 2/24/2010 10:21:24 PM

sir this diagram is not working for me.plz help me out......




pautech

Response by pautech on 5/13/2010 10:19:08 PM

Thanks for your fast response, I will make use of the AT89s51 microcontroller and get back to you. pls, kindly send to my mail box the PCB schematic layout.



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