超声波测距的源代码，汇编语言编写，应用与51单片机和一定外围电路组成的系统上-Ultrasonic Ranging source code written in assembly language, application and 51 of microcontroller and some peripheral circuits on a system composed of

基于51单片机的超声波测距系统，带有温度补偿装置-51 microcontroller based ultrasonic ranging system with temperature compensation

使用US-015超声波模块，测出上方距离，精准大0.1厘米，(Using US-015 ultrasonic module, measured above the distance, accurate 0.1 cm large,)