ABSTRACT
As the rapid development of Single-chip Microcomputer Application technology,
from the navigation device of missile to the various instruments on the aircraft control
and from computer communication network and data transmission to industrial
real-time automation process control and data processing, as well as the extensive use of
the smart card and electronic pets in live, All of this is inseparable from the
microcontroller. SCM is set to CPU, RAM, ROM, timing, counting and multiple
interfaces in one microcontroller. It has the advantages of small volume, low cost,
strong function, widely used in smart industries, and industrial automation.
This paper designed a electronic clock which can achieve calendar function based on
microcontroller, the system consists of main controller STC89C52, clock circuit,
display circuit, DS12C887circuit, and a reset circuit components, the main control
system as the control center, DS12C887 generates a clock, DS18B20 generates
temperature, a 12864 LCD display the date and time, the key can set the time, alarm
clock, achieved the clock calendar and time display function.
In the future, the calendar will be more accurate, look more beautiful; more
affordable prices of the direction of development, and will appear more auxiliary
function.
Keywords: Monolithic single-chip,lunar calendar demand, perpetual calendars
display temperature
