Present situation of electronic perpetual calendar

Electronic calendar is a modern digital timekeeping product, which uses an independent chip to control internal data operation, and uses LED digital display to display daily information such as date, time, week, solar terms, temperature, etc., and integrates many advanced electronic technologies and modern classic technologies. Its internal electronic board hardware and software, hardware and hardware compatibility, performance is static or dynamic LED digital drive, display whether there is flashing, broken pen, and so on; It is earthquake-resistant, fire-proof and riot-proof; There are many series and specifications of products, and the materials of products are also divided into glass, plastic, aluminum alloy and so on. Electronic calendar technology has entered the stage of optimizing the overall relationship among people, families and environment, and is developing towards the direction of ultra-miniature, ultra-efficient and miniaturization of integrated circuits. At present, there are many kinds of digital calendars on the market, most of which are electronic systems designed based on single chip microcomputer technology. They are generally composed of input pulse circuit, single chip microcomputer, crystal oscillator and reset circuit, external storage circuit and LED display circuit. At present, digital calendars are mainly used for timing, automatic timekeeping, timing, date inquiry and automatic control. Due to the development of single chip microcomputer technology and digital integrated circuit technology, today's digital calendar system has the advantages of small size, accurate timing, low power consumption, convenient maintenance, stable performance, accurate travel time and convenient carrying. In addition, there are ready-made digital calendar integrated circuit chips on the market, which are cheap and easy to use.