51 hc-sr04 PIC 超声波测距程序代码-Hc-51 sr04 PIC ultrasonic ranging program code

超声波测距用，串口显示相关资料，包括程序与接线方法-Ultrasonic Ranging, the serial display relevant information, including procedures and wiring methods

超声波测距传感器 51程序（1602液晶显示）-The ultrasonic ranging sensor 51 program (LCD1602 display)

关于超声波倒车雷达测距的，计算互信息非常有用的一组程序,多元数据分析的主分量分析投影。- About ultrasonic parking radar ranging, Mutual information is useful to calculate a set of procedures, Principal component analysis of multivariate data analysis projection.