ABSTRACT
With the development of scientific technology,an increasing number of home appliances have come into people's daily lives. These home appliances have brought in much convenience and enjoyment to people's life. The function of telephones will be further utilized and developed along with the popularization of telephones. Home appliances will probably be controlled by the telephone using the remote control technique in the future.
The thesis of graduation designer is a remote-control system of home applicances, it is based on AT89C51 MCU with a phone.This system is mainly consisted of the AT89C51, DTMF decoder chip MT8870, Voice chip ISD2560 and memory chip 24C02. The telephone or the cell phone can be used at any place, any time through a intelligent telephone remote control system to control home appliances. This system has a function to turn on the home applicances directly,or turn on the home applicances in a defintly time. Wiretapping , changing and storing passwords and inquirying the state of home applicances.
In fact, the system showed its great advantages in the practical application, such as a high reliability and applicability but a low cost and easy operations. Therefore, the device could be applied to communite in the city and its well worth doing so.
Key words : MCU, Telephone, Remote control, Voice sugges