关于超声波资料,组要是源代码收发用来测距，需要的可以下载-CSB

超声波测距 距离测试 动态口令 led显示-Ultrasonic Ranging distance test dynamic password led display

超声波测距With 52 single-chip microcomputer to control the ultrasonic sensor to measure the distance to the obstacle.Rich in detail, can measure the distance between the floating objects! -Ultrasonic Ranging.With 52 single-chip microcomputer to control

基于Arduino+LabVIEW的上下位机温湿度测量系统，包含原始代码(The temperature and humidity measurement system of the upper and lower computer based on Arduino+LabVIEW, including the original code)