利用51单片机控制红外射线的接收 利用红外遥控器发送红外线 将程序烧录到51单片机中 当接收到红外信号时 就会在于51单片机相连的数码管上显示红外射线相应的数字-Use SCM control the infrared ray receiving infrared remote control sends infrared rays when the device is programmed microcontroller 51 when receiving the infrared signa