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给出了一种用公用电话网进行远程控制家用电器及远程预警的系统。该系统采用电话机上的按键作控制命令按键 ,以 MITEL公司的 DTMF收发器 MT8880作电话双音多频的解码核心 ,以单片机 AT89C5 1作为控制核心
A system for remotely controlling household appliances and remote warnings using the public telephone network is given. The system uses the buttons on the phone as a control command button to MITEL’s DTMF transceiver MT8880 phone dual tone multi-frequency decoding core to the microcontroller AT89C5 1 as the control core