超声波测距的小程序，可以用在很多测距场合

超声传感器资料\HC-SR04超声波传感器.doc
..............\HC-SR04超声波测距模块.pdf
..............\SDM-IO超声波测距传感器.doc
..............\倒车雷达系统的设计.pdf
..............\超声波PIC单片机C程序\HC-SR04PIC.txt
..............\超声波传感器.txt
..............\超声波模块参考.pdf
..............\......测距51C程序\51.C
..............\..........LC1602显示\脉宽测量
..............\....................\脉宽测量.c
..............\....................\脉宽测量.hex
..............\....................\脉宽测量.lnp
..............\....................\脉宽测量.LST
..............\....................\脉宽测量.M51
..............\....................\脉宽测量.OBJ
..............\....................\脉宽测量.opt.bak
..............\....................\脉宽测量.plg
..............\....................\脉宽测量.Uv2.bak
..............\....................\脉宽测量.uvopt
..............\....................\脉宽测量.uvproj
..............\....................\脉宽测量_Opt.Bak
..............\....................\脉宽测量_Uv2.Bak
..............\............D12864显示\测距程序
..............\......................\测距程序.C
..............\......................\测距程序.hex
..............\......................\测距程序.lnp
..............\......................\测距程序.LST
..............\......................\测距程序.M51
..............\......................\测距程序.OBJ
..............\......................\测距程序.Opt
..............\......................\测距程序.plg
..............\......................\测距程序.Uv2
..............\......................\测距程序_Opt.Bak
..............\......................\测距程序_Uv2.Bak
..............\..........串口显示\串口接线方式.jpg
..............\..................\测距程序.C
..............\..................\测距程序.hex
..............\..................\测距程序.lnp
..............\..................\测距程序.LST
..............\..................\测距程序.M51
..............\..................\测距程序.OBJ
..............\..................\测距程序.opt.bak
..............\..................\测距程序.plg
..............\..................\测距程序.Uv2.bak
..............\..................\测距程序.uvopt
..............\..................\测距程序.uvproj
..............\..................\测距程序_Opt.Bak
..............\..................\测距程序_Uv2.Bak
..............\..................\测距程序_uvopt.bak
..............\..................\测距程序_uvproj.bak
..............\超声波测距仪实例.pdf
..............\..........数码管显示\数码管接线方式.jpg
..............\....................\脉宽测量
..............\....................\脉宽测量.c
..............\....................\脉宽测量.hex
..............\....................\脉宽测量.lnp
..............\....................\脉宽测量.LST
..............\....................\脉宽测量.M51
..............\....................\脉宽测量.OBJ
..............\....................\脉宽测量.opt.bak
..............\....................\脉宽测量.plg
..............\....................\脉宽测量.Uv2.bak
..............\....................\脉宽测量.uvopt
..............\....................\脉宽测量.uvproj
..............\....................\脉宽测量_Opt.Bak
..............\....................\脉宽测量_Uv2.Bak
..............\..........资料客户\超声波PIC单片机C程序\HC-SR04PIC.txt
..............\..................\超声波PIC单片机C程序.rar
..............\..................\超声波模块参考.pdf
..............\..................\......测距51C程序\51.C
..............\..................\.................\超声波测距51C程序\51.C
..............\..................\超声波测距51C程序.rar
..............\..................\..........LC1602显示\脉宽测量
..............\..................\....................\脉宽测量.c
..............\..................\....................\脉宽测量.hex
..............\..................\....................\脉宽测量.lnp
..............\..................\....................\脉宽测量.LST
..............\..................\....................\脉宽测量.M51
..............\..................\....................\脉宽测量.OBJ
..............\..................\....................\脉宽测量.opt.bak
..............\..................\....................\脉宽测量.plg
..............\..................\....................\脉宽测量.Uv2.bak
..............\..................\....................\脉宽测量.uvopt
..............\..................\....................\脉宽测量.uvproj
..............\..................\....................\脉宽测量_Opt.Bak
..............\..................\....................\脉宽测量_Uv2.Bak
..............\..................\超声波测距LC1602显示.rar
..............\..................\............D12864显示\测距程序
..............\..................\......................\测距程序.C
..............\..................\......................\测距程序.hex
..............\..................\......................\测距程序.lnp
..............\..................\......................\测距程序.LST
..............\..................\......................\测距程序.M51
..............\..................\......................\测距程序.OBJ
..............\..................\......................\测距程序.opt.bak
..............\..................\......................\测距程序.plg
..............\..................\......................\测距程序.Uv2.bak
..............\..................\......................\测距程序.uvopt
..............\..................\......................\测距程序.uvproj
..............\..................\......................\测距程序_Opt.Bak