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Author Topic: What's the difference between ultrasonic sensors?  (Read 596 times)
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Doing a little (re)search on the net for things I can get to play with my arduino with and I came across some sonic range finders.

MaxSonar EZx
MaxSonar UT

I know in the EZ range the field is different but what is the difference between the UT and EZx other than the fact the UT is 1/5 of the price?
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I think that the UT is the raw transducer, the EZ comes with some extra circutry that makes it A LOT easier to interface to for instance Arduino.
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There is an Arduino for that
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MaxSonar UT are just transducer

MaxSonar EZ ar the same transducer with electronics to drive the transducer and compute the distance.
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How much harder is it to program with the UT?  I'm just looking purely at a cost side of things.  2 x EZ = $55 or 2 x UT = $12
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I don't think you connected the grounds, Dave.
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Quote
How much harder is it to program with the UT?  
Well, if it's a bare transducer, generating the outgoing pulse is dead easy.

However, amplifying the returned echo, which may only generate a voltage of a few hundred microvolts is tough in software.
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A raw transducer is pretty much useless with Arduino.  You need electronic amplification & filtering followed by complex DSP.  Go with the EZ.  You may also consider Devantech - a similar product that can report multiple targets.
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