A Design of LED Digital Tube Intelligent Alarm Clock Based on MCU

摘要

In order to make up for some shortcomings in the alarm clock based on smart phones, a design of LED digital tube intelligent alarm clock based on MCU is proposed. The project: LED digital tube intelligent alarm clock is based on MCU, which consists of the STC90C516RD MCU, together with some peripherals packaging on the development board. The software part is based on the platform Keil μvison 4, the programs of which consist of functions which can achieve several specific functions. The expected time will be displayed on 8 digital tubes; the alarm time will be set so long as the source program is compiled. As soon as the LED digital tube intelligent alarm clock goes off, the system time will be displayed on the digital tubes while the buzzer will alarm at a frequency of 1000 Hz until the button of the independent keyboard unit is pressed. The hardware part of this subject is suitable and the software design which had been tested during the experiments is proved to be executable.