本设计以单片机AT89S51、双音多频(DTMF)解码MT8870、EEPROM芯片AT93C46等器件作为核心,选择电话机作为控制器,实现远程控制家用电器。对家用电器(如电饭煲、电暖风、空调、电热水器等)进行远程开启、关闭、延时开/关的设定。控制具有密码保护功能,以免误操作或恶意操作。 The design of the microcontroller AT89S51, dual-tone multi-frequency (DTMF) decoding MT8870, EEPROM chip AT93C46 and other devices as the core, select the phone as a controller to achieve remote control of household appliances. On the household appliances (such as rice cookers, electric heaters, air conditioners, electric water heaters, etc.) to remotely open, close, delay on / off settings. Control with password protection, so as to avoid misuse or malicious operation.