利用89C52单片机驱动XL24L01，一块发送一块接收，当发送端按键按下，接收端收到后蜂鸣器报警，以检测成功。-Use 89C52 microcontroller driven XL24L01, sending a piece of the receiver, when the transmitter side button is pressed, the receiver receives the buzzer alarm to detect successful.