超声波测距串口测试程序，适用于超声波测距模块的使用-Serial ultrasound showed

超声波测试距离的不同串口显示模块进行c语言编写代码-Serial ultrasound test different from the display module to write code c language

80C51F单片机实现超声波通信，RS232测距功能，汇编语言-80C51F MCU the ultrasound communication, RS232 ranging, function, assembly language

采用c语言完成了超声波通信系统，通过采用半双工的收发模式，实现两个超声波系统的收发，采用键盘模式发送短信或者字符，通过液晶显示发送端和接收端是否一样-C language using ultrasonic communication system is completed through the use of half-duplex transceiver mode, both send and receive ultrasound system to send text messages us