【摘要】 文中提出了一个利用单片机技术实现电话自动报警接收功能的设计方案 .电路包括双音频信号的输入、解码及单片机对信号的接收和发送、程序采用中断方式捕捉二进制码更多还原

【Abstract】 A design of the alaming system by telephone line and the computer is presented in this paper. The hardware contains DTMF′S receiving, trcmslating and emiting, the program uses the internpt to catch the data.更多还原