智能触摸延时开关源程序

用STC89C52单片机P0口的高阻态输入功能，扫描接口电平。手指将VCC与I\O接口半连接，产生高电平信号。用单片机高低电平控制继电器以达到间接控制节能灯。用单片机的定时器中断定时一段时间。利用人眼视觉暂留现象显示楼层数-Smart touch delay switch source with STC89C52 microcontroller P0 port high-impedance input function, scan interface level. Fingers VCC and I \ O interface semijoin produces a high signal. To achieve indirectly control energy-saving lamps with the microcontroller high and low control relay. Microcontroller timer interrupt regularly for some time. Displays the number of floors phenomenon of persistence of vision of the human eye