一个超声测距的汇编程序，里面有注解，可供大家参考。-An ultrasonic ranging compilation of procedures, which are notes available for your reference.

此C语言代码可用于为DYP-ME007超声波模块做驱动，应用两片74HC573作为LED的驱动芯片-The C language code can be used for the DYP-ME007 do drive ultrasonic module, application two 74HC573 chips as LED driver

基于51单片机的收发一体的超声波代码程序，精度（2cm-450cm），亲测，没有错误-Microcontroller based STM3 four-rotor remote control code, the code amount high...