Multi-function electronic doorbell design based on MCU
Abstract:As old bell function is simple, music ringtone is monotonous, human nature is poor, I put forward multi-functional electronic doorbell design scheme which focuses on AT89C51 chip. This design uses AT89C51 microcontroller as the core. It is made up of liquid crystal display module, voice playback module, music and other components of the module. Its work state includes master can set regular functions and also add some extensions. This design can realize intelligent and humanization, can meet the demand of modern people. As it brings great convenience to us , it can be used as product to develop.
Key Words: Microcontroller AT89C51; Electronic bell; Voice playback; Liquid crystal display12864
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