Subject:
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Ultrasonic Rangefinder
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sat, 20 Sep 1997 23:42:21 GMT
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Original-From:
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Darkman <lroska@cyberusANTISPAM.ca>
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Viewed:
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1511 times
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Did anyone ever opened up a Polaroid Spectra
Instant camera?
I did. The sonar rangefinder is almost identical to the
Polaroid 6500 exept there are some problems that I encountered
1) BLNK and BINH have no efect on the ECHO output
2) The ECHO signal once received does not return to logic low until
power off
If anybody else ever got it to work please let me know!
If it works it sure beats paying $50 for the 6500.
I picked up the camera for $12 at a pawnshop.
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Message has 1 Reply:
 | | Re: Ultrasonic Rangefinder
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| I've used the sonar board and transducer from several Polaroid "Pronto Land Cameras" for just that purpose in that past. I don't know how these compare to the Spectra; I would assume they're similar if not identical. There was an article in an old (...) (27 years ago, 21-Sep-97, to lugnet.robotics.handyboard)
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