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 | | Steel-Tec Sale
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| Thought that you might me interested to know that Kay-Bee toys is having a nice sale on Steel-Tec sets. They're kinda like Erector sets. A bunch of straps of metal with holes in them. A 1000 some piece set is selling for about $20! That includes (...) (28 years ago, 18-Nov-96, to lugnet.robotics.handyboard)
| | | | | Re: sonar
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| I haven't actually priced them, but I would imagine that used Polaroid Cameras aren't that expensive. I assume that this uses the same unit that everyone is talking about. It might be worth a trip to your local pawn shop to save some money. My (...) (28 years ago, 18-Nov-96, to lugnet.robotics.handyboard)
| | | | | Re: sonar (fwd)
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| (...) Garth, To get a detailed idea about the device electronics, call (617)386-3965, Polaroid Corp., OEM Components Group. They will give you FREE literature on this. I imagine that it will help you if you want to investigate making your own (...) (28 years ago, 18-Nov-96, to lugnet.robotics.handyboard)
| | | | | Re: sonar (fwd)
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| Forwarded message: (28 years ago, 18-Nov-96, to lugnet.robotics.handyboard)
| | | | | Re: sonar
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| (...) yes. the polaroid board is pretty sophisticated, really, in that it ramps up the input gain the longer it waits for the ultrasonic reflection pulse. this compensates for the exponential falloff in "volume" as sound disperses on the way out and (...) (28 years ago, 18-Nov-96, to lugnet.robotics.handyboard)
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