本次毕业设计的题目是用AT89C51实现电话远程控制家用电器，该系统主要是由AT89C51单片机、DTMF解码芯片MT8870、语音芯片ISD2560和存储芯片24C02组成。可以用电话机或手机在任何地方、任何时刻通过此系统来远程控制家里的电器。该系统可以直接开关电器、延时开关电器、监听家中声音、密码修改和存储及其状态查询，并且有自动语音提示功能。

系统具有运行可靠、成本低、操作方便、适用性强等特点，可以广泛应用于城市社区，具有较大的推广价值。-The topic of this graduation design is used to achieve AT89C51telephone remote control household appliances, the system is mainly composed of AT89C51chip, DTMF MT8870 decode chip, a voice chip ISD2560 and memory chip24C02. Can use telephone or mobile phone at any place, any time through this system to the remote control of home electrical appliances. The system can switch electrical appliances, delay switch electrical appliances, home audio monitor, password changes and storage and query, and has automatic voice prompt function.



The system has the advantages of reliable operation, low cost, convenient operation, high adaptability, and can be widely applied in city community, has greater popularization value.