Arduino教程（提高篇）——SR04超声波类库的使用

炯炯143

哈哈。有教材很好，楼主写的也很明白，赞一个

yincp

完全按照教程来接线和写代码（不是用类库），只有第一次出数据（距离还比较准），后面都是0.00cm，求教

Ultrasonic sensor:
194.66cm
0.00cm
0.00cm
0.00cm
0.00cm
0.00cm

风与云的彼岸

mapig 发表于 2013-1-2 23:17
**** 作者被禁止或删除 内容自动屏蔽 ****

查下电平，我一开始接3.3V全是0

無指山

yincp 发表于 2015-11-5 13:47
完全按照教程来接线和写代码（不是用类库），只有第一次出数据（距离还比较准），后面都是0.00cm，求教

Ul ...

吹吹那个探头就好了。。。。

迪格格

您好，我想请教一下如何用超声波模块控制舵机使其在120度范围内来回转？

lrh0426

有库真好，谢谢分享

love520

我按照上面所说的做了，但是编译不通过，为什么呢？出现这个
Arduino:1.6.2 (Windows 7), 板："Arduino Uno"

构建选项已变更，全部重新构建

sketch_jan31b.ino: In function 'void loop()':

sketch_jan31b.ino:24:14: error: no matching function for call to 'HardwareSerial::print()'

sketch_jan31b.ino:24:14: note: candidates are:

In file included from C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Stream.h:26:0,

                 from C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/HardwareSerial.h:29,

                 from C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Arduino.h:223,

                 from sketch_jan31b.ino:1:

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:58:12: note: size_t Print::print(const __FlashStringHelper*)

     size_t print(const __FlashStringHelper *);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:58:12: note:   candidate expects 1 argument, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:59:12: note: size_t Print::print(const String&)

     size_t print(const String &);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:59:12: note:   candidate expects 1 argument, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:60:12: note: size_t Print::print(const char*)

     size_t print(const char[]);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:60:12: note:   candidate expects 1 argument, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:61:12: note: size_t Print::print(char)

     size_t print(char);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:61:12: note:   candidate expects 1 argument, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:62:12: note: size_t Print::print(unsigned char, int)

     size_t print(unsigned char, int = DEC);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:62:12: note:   candidate expects 2 arguments, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:63:12: note: size_t Print::print(int, int)

     size_t print(int, int = DEC);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:63:12: note:   candidate expects 2 arguments, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:64:12: note: size_t Print::print(unsigned int, int)

     size_t print(unsigned int, int = DEC);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:64:12: note:   candidate expects 2 arguments, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:65:12: note: size_t Print::print(long int, int)

     size_t print(long, int = DEC);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:65:12: note:   candidate expects 2 arguments, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:66:12: note: size_t Print::print(long unsigned int, int)

     size_t print(unsigned long, int = DEC);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:66:12: note:   candidate expects 2 arguments, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:67:12: note: size_t Print::print(double, int)

     size_t print(double, int = 2);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:67:12: note:   candidate expects 2 arguments, 0 provided

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:68:12: note: size_t Print::print(const Printable&)

     size_t print(const Printable&);

            ^

C:\Users\Administrator\AppData\Roaming\Arduino15\packages\arduino\hardware\avr\1.6.2\cores\arduino/Print.h:68:12: note:   candidate expects 1 argument, 0 provided

编译有误。

  报告将会包含更多的信息
  "在编译时，输出详细信息"
  在 文件>首选项 中启用

sjiliang

太好了，双手赞成大家都开放类库文件，发扬协作精神。

zm62

洪雨 发表于 2012-8-9 22:20
不知道最远都到多远 我试了下 两栋楼之间的距离 收不到 能收到 500cm以内的 不知道大家有没有测过最远的距 ...

SR04测距是2cm-400cm

raybin

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