本文分析了家用门铃的主要功能和一般特点，在此基础上提出了由单片机系统(MCU)实现的智

能化音乐门铃设计方案，阐迷了该方案的硬件组成和软件编程。通过软件仿真和硬件制作调试表明这种门铃

方便实用且工作稳定可余，能够灵活地实现多种功能，是时当前普遥使用的一般门铃的重大改进-Them ainf unctionsa ndc haracteristicso fh ouseholdd oorbella rep resented.T hena s eto fd esign

module is analyzed, which realizes a kind of intelligent bell based on ]VICE. Meanwhile, the hardware structure

and software design are introduced. Simulation and actural use prove that this design is convenient and practical,

and can perform versatile functions stably and flexibly. It is an improvement for common used doorbell.