Real Time Clock using CAT89C4051
by Ranjith | November 19th, 2008.Hello friends, here is a clock project where CAT89C4051 is used as RTC. LCD is used for display. Using CGRAM area of LCD you cn create cistome characters. Here you will be able to see big and better digits in LCD. The digits are twice the size of the normal digits.
PCB design for project is also given below. A nice PCB with single layer design. This PCB is recommended for the above project
The silk screen is not so good. but you can edit it as you want and make it look better
LCD Display:

Digital clock module
Circuit Diagrams:
Power Supply:

Power supply of Real Time Clock using CAT89C4051
PCB Layout:

PCB Layout

PCB Layout
Here the program is written in C and hex file is generated using Keil C compiler. You can directly use ‘Clock.hex’ file.
Download the source codes by clicking here
By Ajay Bhargav
http://rickeyworld.info







March 17th, 2009 at 11:42 pm
whether this is wrkin in real or not……..
July 20th, 2009 at 1:59 pm
I would add Real Time Clock IC PCF8583 and battery power only to RTC IC.
October 8th, 2009 at 7:22 pm
pls send the source code and the lcd configuration of the project digital clock with calender. thanx.