Description: HC-SR04 ultrasonic ranging module provides 2cm-400cm non-contact distance sensing capabilities, ranging accuracy up to high to 3mm module includes ultrasonic transmitter, receiver and control circuit. The basic working principle: (1) IO port TRIG trigger ranging to the least 10us HIGH letter was. (2) the module automatically sends eight 40khz square wave, automatically detects whether a signal return (3) the signal is fed back through the IO port ECHO outputs a high level, high level duration ultrasound
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超声波PIC单片机C程序\HC-SR04PIC.txt
......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
....................\脉宽测量.plg
....................\脉宽测量.Uv2
....................\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
..................\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
..........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
....................\脉宽测量.plg
....................\脉宽测量.Uv2
....................\脉宽测量_Opt.Bak
....................\脉宽测量_Uv2.Bak
HC-SR04超声波测距模块说明书.pdf
超声波模块参考.pdf
超声波PIC单片机C程序
超声波测距51C程序
超声波测距LC1602显示
超声波测距LCD12864显示
超声波测距串口显示
超声波测距数码管显示
HC-SR04超声波_原理图.pdf
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