这是一个电话拨号防盗报警器的单片机控制程序（C语言）。电话拨号防盗报警器由单片机、键盘输入、数码管显示、触发电路、拨号电路等组成。单片机负责控制检测输入输出、模拟摘机、拨号报警、挂机等一系列的程序动作。单片机型号为AT89C2051。-This is a burglar alarm dial microcontroller control program (C language). Dial burglar alarm from the microcontroller, keyboard inp

Fine example of a keyboard hook.

实验目的:结合DTMF拨号实验,按键检测实验和继电器实验,拨打电话.电话号码从键盘输入,挂机和摘机也从键盘上完成. F键是摘机,E键是挂机-Objective: combined with DTMF experiment, button detection experiments and relay experiment, call. Telephone number the keyboard input, on hook and off hook the keyboard to comp