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ultrasonic distance measuring

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ultrasonic distance measuring Customers Reviews

  • Fantastic bit of kit for very little money

    posted by thekanester

    Took over a month to arrive, but it was worth the wait. I'm using it with an Arduino. The 1.0 library only includes example code for the 3 pin sensor, and this one is four. Not to worry though, a very quick google search yields many easy-to-understand examples. I got mine from here:https://gist.github.com/flakas/3294829/raw/4bdca307fd4bdb35f95c6b682c318ca61c04e250/hc-sr04.inoIt runs without any issues and the results are amazing. I've got reliable readings against walls up to 14 feet so far, and I haven't tried longer.Soft surfaces fox it, as you would expect, as do concave hulls, where the pulse can echo, e.g. corners of a room!However, when you consider the ease of use, general accuracy and cheap price, this is a winner.
    I think that my pros say it all...
    If you want a ranging unit, I think this does a great job for the price. I guess the real test would be to use it in some form of mobile platform like a robot, which I haven't, but it's good far.
  • nice product

    posted by AshkenaziAvi

    it is nice to work for estimated mesurement.it is very easy to use.it is very light to hold it.the display is easy to read.the shape is line traditional meter, and it is nice.the battery is standatd and small, can be used for a long time.
    for the price it is a nice measurment device.in a second thought, a laser distance meter it is better for more accurate usage.
    nice device.
  • Cheap, easy to use!

    posted by Jumba990

    Very cheapEasy to useHas a decent accuracy
    The range is about 15 cm.And for those looking to buy it for use with an Arduino, I've attached a sample code of how I used it. Obviously you'll have to calibrate it a bit first, but this will hopefully help you to get started with the ultrasone.http://pastebin.com/NzwLdUnQ
    Good ultrasone sensor for the price, only useful for distances under 15 cm! I ended up destroying mine when soldering, I accidentally heated it up too much. So I'd recommend on taking care when soldering since if the plastic inside melts it will immediately stop working, or return random values.

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