DP_51PRO实验仪红外收发实验。使用串口发送数据经调制后从红外管输出， * 并通过红外接收模块把接收到的数据返回串口接收端，通过判断接收到的数 * 据来控制LED灯点亮。-DP_51PRO experimental instrument infrared transceiver experiment. After using the serial port to send data from the modulated infrared tube output,* and throu