基于单片机的语音门铃设计与实现

哈尔滨工程大学本科生毕业论文ABSTRACTIn recent years,with intelligent buildings on the market has been heatingup,the doorbell system has been as intelligent office and intelligent residentialquarters of an important component of the traders and users to accept.In somecases,voice doorbell systems to bring unexpected convenience.The main objectiveof this topic is to design a small voice doorbell system,It has tips,message andalerts.Based on this idea,the design of the 89C52 MCU as the core,combined withthe ISD1700 voice chip ,and voice doorbell system to design a modularprinciple.Which ISD1700 voice chip is controlled by the MCU and the SPIprotocol mode and can fully play their recorders.At the same time,the use ofinfrared detection module to enhance the safety performance of the system.The characteristics of this system is personalized,humane,intelligent,safeand convenient to have a relatively high cost performance.Key words:voice doorbell;MCU:ISD1700