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sonar range finder help 
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Joined: Tue Jan 01, 2013 7:54 am
Posts: 2
Post sonar range finder help
can sonar module detect 7-6ft X 4-3ft object within 5-6ft distance ? is it possible? if it's impossible is there any solutions for this? please help me.. thanks. =)


Tue Jan 01, 2013 12:48 pm

Joined: Tue Jan 01, 2013 7:54 am
Posts: 2
Post Re: sonar range finder help

Wed Jan 02, 2013 6:17 am

Joined: Thu Sep 29, 2011 11:09 pm
Posts: 184
Location: Michigan USA
Post Re: sonar range finder help
It depends on the "sonar module", as well as the object you wish for it to detect. If the object has a smooth surface, then ultrasonic is usually a good option.

If you are asking about the Lego NXT Ultrasonic sensor, then the answer is no, it won't work. That range is too large. I think it's rated for about one meter, or about 3 feet.

However, there is a huge variety of ultrasonic sensors, so I suggest you look around for one that would work.

Please note than thread bumping is frowned upon, especially within 48 hours of the last post.


Wed Jan 02, 2013 2:09 pm
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Joined: Thu Jan 03, 2013 5:10 pm
Posts: 207
Location: The plateau north of the Ohio River Valley, also known as Cave Country.
Post Re: sonar range finder help
My LEGO ultrasonic sensor works accurately up to 5 feet or so. It detects hard surfaces better than soft ones. Also it performs best when pointed within 30 degrees of straight toward the object. I think you have a good chance of detecting it, but possibly only accurate to +/- 2in.

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Fri Jan 04, 2013 11:45 pm
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