20 Oct
2014
20 Oct
'14
9:59 p.m.
we have a bag of ultrasonic transducers, as seen here:
http://www.directindustry.com/prod/international-transducer/ultrasonic-tran…
in case you needed to do any ultrasonic transducing. there are also
electret microphones in the same bag, i think they were used together for
physical location tracking, like short distance high-accuracy distance
measurement.
-jake