Fantasy: At some Ultrasonic frequency there are TWO outputs of this type. But the PHASE between those can be varied and they drive two separate Ultrasonic transducers. There is one (maybe 2?) Ultrasonic transducer receivers. Some kind of Phased Array technique allows not just distance but some spatial location information to be recovered from object(s) in front of the array. Maybe.
One great thing about Arduino is that most of us are not doing this stuff At Work...
Thanks, nice job. This could come in handy.
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