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Well, I finally got my Polaroid sonar module in the mail, and I got it working with my Handy Board tonight. My feelings thus far: This thing is pretty neat. However (of course), there are a few quirks that I'm trying to figure out. Distance (...) (29 years ago, 14-May-96, to lugnet.robotics.handyboard)
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| | 15' max measurement
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Yup, it looks like 15' is about as far as I can measure. In fact, if the distance is _too_ great, I start getting weird measurements, on the order of 8 or 9 feet. Strange. I turned the gain up a bit, which keeps those erratic measurements from (...) (29 years ago, 14-May-96, to lugnet.robotics.handyboard)
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| | Re: 15' max measurement
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(...) I believe it would matter what type of material you reflect the pulse off of, I would guess. Different surfaces have differenc acoustical properties. Just like they have those silent rooms and echo chambers, etc. (29 years ago, 14-May-96, to lugnet.robotics.handyboard)
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| | Re: 15' max measurement
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(...) I beleive "hard" rigid materials have high reflectivity of sound, such as metal and granite, etc. Pourous materials absorb sound, like brick and wood. You may have notised that sound absorbtions usually involve foam pads on the walls and (...) (29 years ago, 14-May-96, to lugnet.robotics.handyboard)
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| | Error Messages
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Hi to all, Why do I get the following error messages when I load my files to the Handy-board? Thank you in advance. Armen Initializing interrupts Downloading 1840 bytes (addresses 8000-872F): 1840 loaded Downloading 78 bytes (addresses 8730-877D): (...) (29 years ago, 14-May-96, to lugnet.robotics.handyboard)
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| | Where can i buy L293D in Scandinavia
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I have the problem to locate a suplayer of the L293D needed for the motor output circuit. Can anyone tell me who i manufacturing the L293D. is there any alternate suplyer and which manufacturer is that. Jakob Lundberg mail: jakob.lundberg@atc.mil.se (...) (29 years ago, 15-May-96, to lugnet.robotics.handyboard)
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| | Downloading without AC adapter
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Is it possible to download pcode and programs to the HB with having the AC adapter plugged in? -John (29 years ago, 15-May-96, to lugnet.robotics.handyboard)
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| | Should I?
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Hi all, I am a young Dutch engineer assigned to build a prototype of a six-legged robot. I am considering to use the handy-board as the controller. There are however a few questions I have. First of all, is it possible to control six motors with the (...) (29 years ago, 15-May-96, to lugnet.robotics.handyboard)
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| | Re: Error Messages
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(...) What version of IC are you running? Are you by chance running the old DOS version 2.86x under Windows? -- Randy (29 years ago, 15-May-96, to lugnet.robotics.handyboard)
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| | Re: Downloading without AC adapter
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(...) Yes. The interface will draw power from the HB's battery. Don't leave the HB plugged into the interface w/o the adapter for extended periods, because the interface will drain the HB's battery even if the HB is switched off. -Fred (29 years ago, 15-May-96, to lugnet.robotics.handyboard)
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