Abstract
In the busy work and life in modern society, and every one of us is closely related
to everyone under the influence of time, in order to make better use of our own time,
we must have a measure of time, resulting in a watch. With the development of
society, science and technology, human beings that time from the view of the sun, the
electronic clock pendulum clock to now, continuous research and innovation. At the
same time in the observation time in order to understand other human related
information, such as temperature, week, date, the birth of the electronic calendar, it set
the time, date and week in a body, with easy to read, intuitive display functional
diversity simple circuit and many other advantages, conform to the trend of the
development of electronic instruments. It has broad market prospects.
The electronic calendar based on MCU AT89C51 as the control core, through the
MCU to control the clock chip DS1302 read the realization of time; the temperature
sensor DS18B20 to realize temperature acquisition; buzzer alarm clock; LCD
QC12864B implementation time, week and temperature display; independent keys to
achieve the adjustment of time and alarm time. This paper mainly introduces the
circuit design and software design of AT89C51 single chip microprocessor and
Dsl302 real-time clock chip. It can display the Gregorian calendar year, month, day,
week, hour, minutes, seconds, and can be adjusted according to the needs of each bit.
Then SCM control LCD display module to display the electronic calendar, gives the
hardware circuit design, software design and programming, through the Proteus
software, the simulation of hardware circuit and software programming, has certain
practical value.
Keywords: SCM; electronic calendar; AT89C51; DS1302; Proteus; simulation
