 | | please reply to pshaltis@alpha.albion.edu
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From: IN%"PSHALTIS@ALPHA.ALBION.EDU" "NAME=I'll have the hair of the dog that bit me." 15-SEP-1997 18:00:37.88 To: IN%"handyboard@media.mit.edu" CC: Subj: sony ir files Return-path: <PSHALTIS@ALPHA.ALBION.EDU> Received: from aleve.media.mit.edu (...) (27 years ago, 22-Sep-97, to lugnet.robotics.handyboard)
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| | Re: Ultrasonic Rangefinder
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(...) Better yet - can you make this available by ftp or on a web site somewhere? I too have an old autofocus Polaroid camera (can't remember the model) and would like to use the ultrasonic gubbins from it. Thanks Pete (27 years ago, 22-Sep-97, to lugnet.robotics.handyboard)
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| | Re: Ultrasonic Rangefinder
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(...) Better yet - can you make this available by ftp or on a web site somewhere? I too have an old autofocus Polaroid camera (can't remember the model) and would like to use the ultrasonic gubbins from it. Thanks Pete (27 years ago, 22-Sep-97, to lugnet.robotics.handyboard)
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| | Re: Ultrasonic Rangefinder
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(...) Hi Eric (...) The answer is no, what I used is the schematic diagram for the Polaroid 6500 rangefinder board. the circuit is almost identical exept for a transistor preamp betwen the transducer and the receiver. The only way I can initiate a (...) (27 years ago, 22-Sep-97, to lugnet.robotics.handyboard)
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| | Re: polaroid transducers
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(...) poor handyboarders? i beg to differ. -see ya (yes i know. this is only in jest) :) _/_/_/_/a cyberNETix organiZM_/_/_/_/ (URL) _/_/_/_/_/_/_/_/_/_/..._/_/_/_/_/ (27 years ago, 21-Sep-97, to lugnet.robotics.handyboard)
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| | polaroid transducers
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does anybody out there have any schematics for using the polaroid transducers on the handyboard, I have two such transducers, but havint got a clue how they work or how to connect them to the handyboard. I'm also very interested in what Bill Richman (...) (27 years ago, 21-Sep-97, to lugnet.robotics.handyboard)
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| | 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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| | Ultrasonic Rangefinder
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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 (...) (27 years ago, 20-Sep-97, to lugnet.robotics.handyboard)
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| | Re: fun under the sun...
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From the "other" mailing list I'm on (BEAM robotics), try: www.solarbotics.com They have a lot of parts and information for solar powered robots. I've bought stuff from them and had good experiences. (Although getting a flimsy bubble-pack envelope (...) (27 years ago, 20-Sep-97, to lugnet.robotics.handyboard)
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| | fun under the sun...
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Hey folks looking for a cheap source of solar cells... I wanna make something around 8 volts and between .5 to 1 amp The load will be that of a "modified" rc car motor (ball bearings, slot armature, 15 winds) Any help would be greatly appreciated (...) (27 years ago, 20-Sep-97, to lugnet.robotics.handyboard)
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