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examples fix add ";" Aug 10, 2016
.gitattributes a applitation demo Jun 7, 2013
License.txt **re-arranged the dir structure; Dec 30, 2013 update Apr 9, 2018
Ultrasonic.cpp Fix compile error with SeeedJP STM32 boards Jun 3, 2019
Ultrasonic.h updated the README file and file-header Aug 1, 2014
keywords.txt Remove irrelevant keywords Apr 9, 2018 update version to 1.0.1 Apr 9, 2018


This Grove - ultrasonic sensor is a non-contact distance measurement module which works at 42KHz, suitable for projects that require middle distance measurement.


  1. Clone this repo or download as a zip;
  2. Unzip the zip file if you downloaded a zip file;
  3. Remove the string "-master" if you download as a zip file;
  4. Copy the directory "Grove_Ultrasonic_Ranger" into Arduino's libraries directory;
  5. Open Arduino IDE, go to "File"->"Examples"->"Grove_Ultrasonic_Ranger"

Assume that you connected the grove correctly.

For connection guide and more information, please refer to wiki page.

This software is written by L.G. for for Seeed Technology Inc. and is licensed under The MIT License. Check License.txt/LICENSE for the details of MIT license.

Contributing to this software is warmly welcomed. You can do this basically by
forking, committing modifications and then pulling requests (follow the links above
for operating guide). Adding change log and your contact into file header is encouraged.
Thanks for your contribution.

Seeed is a hardware innovation platform for makers to grow inspirations into differentiating products. By working closely with technology providers of all scale, Seeed provides accessible technologies with quality, speed and supply chain knowledge. When prototypes are ready to iterate, Seeed helps productize 1 to 1,000 pcs using in-house engineering, supply chain management and agile manufacture forces. Seeed also team up with incubators, Chinese tech ecosystem, investors and distribution channels to portal Maker startups beyond.


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