基于AT89S52的多功能智能门铃设计

Design of Intelligent Multi-function Doorbell Based on AT89S52

以AT89S52为核心器件,设计了一套多功能智能门铃.通过单片机、时钟与复位电路、选择按键输入电路、音频发生器、音频放大器和蜂鸣器的共同作用,达到多功能门铃设计的良好效果.其中硬件系统包括门铃、报警、指示灯、晶振等模块.同时采用KEIL C51对系统进行软件设计,并对主要功能模块进行了分析和描述.最后采用EDA工具软件PROTUES进行系统仿真实验,基本实现了预期功能.

In this paper, the AT89S52 is the foundation of the design of multi-functional intelligent doorbells. By combining the single chip, clock and reset circuit, select the key input circuit, tone generator, audio frequency amplifier, and buzzer＇s action, it can realize the goal of multi-function. The hardware systems and main function modules were designed, which is consisted of the doorbell module, alarm module, LED module, crystal modules and other components. And KEIL C51 was adopted in the design of software system to analyze and describe the main function modules. Finally, the EDA software tool PROTEUS 7.8 was used in system simulation, and realized the basic functions as expected. The doorbell has the function of music ringing, lighting and giving alarm.