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Ok, it seems that everyone thinks the Polaroid sonar module is pretty nifty. However, how is it for _obstacle avoidance_? My new robot has a dire need for a way to keep from crashing into things all the time, and sonar would seem to be a nice (...) (28 years ago, 1-May-96, to lugnet.robotics.handyboard)
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| | Re: sonar for obstacle avoidance
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You mean besides making it 'crawl'? In my robotics class were were programming autominus vehicle equipped with a servo mounted sonar on the front. The basic process is this: 1) scan 2) analyze data... (aka look for wall shaped thing) 3) adjust (...) (28 years ago, 1-May-96, to lugnet.robotics.handyboard)
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| | Re: sonar modules
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(...) Ahh, ok, that's pretty easy for me... Did you mount your array on a servo or anything? Are the transmitter and receiver both part of one module? (28 years ago, 30-Apr-96, to lugnet.robotics.handyboard)
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| | Re: sonar modules
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(...) Where does it get it's power from? The handy board? I just might go out and buy one of these, since I'm getting tired of my robot smashing into walls! :-) (28 years ago, 29-Apr-96, to lugnet.robotics.handyboard)
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| | Re: sonar modules
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Can I get more details on the wiring? I am using the description by kent I believe. Connecting BINH is preventing it from working. It clicks but the echos immediately (0 inches). without BINH, I get it to run but with minimal distance of 18". Maybe (...) (28 years ago, 29-Apr-96, to lugnet.robotics.handyboard)
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| | sony-ir.icb problem
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Hi! I just unpacked my new Handy Board and tried some stuff I found in the IC manual. What can you say about the following error? C> load sony-ir.icb Loading sony-ir.icb. Fatal internal error: Illegal line in .s19 file -martin + Martin Frischherz (...) (28 years ago, 29-Apr-96, to lugnet.robotics.handyboard)
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| | Re: sonar modules
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Hi Jeff, The Polaroid sensors work pretty darn well. I've been able to get 1" resolution from 8" to 130"++ (reportedly they work to 35 ft - my room's not big enough to try this out). I was able to get mine working in about 10 minutes. Basically, (...) (28 years ago, 29-Apr-96, to lugnet.robotics.handyboard)
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| | excessive motor current?
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I just managed to convert a Cat D10 toy into a robot. In doing so, I've converted the power source for its motors from Alkaline to NiCads. One thing I've noticed is that the NiCads make the robot seem A LOT more powerful. I measured the current (...) (28 years ago, 29-Apr-96, to lugnet.robotics.handyboard)
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| | sonar modules
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How well do the Polaroid sensors everyone's using work? Do they require much external circuitry or any modifications to the handy board? I'm interested in them since I'm finally managing to get a nice working robot going... (Yeah everyone, I (...) (28 years ago, 29-Apr-96, to lugnet.robotics.handyboard)
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| | Code for simple robot
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It is possible that there are those out there that may be as bad at 'C' as I am, so for what is worth, here is my code that is working. My bot, Rug-Runner, with HandyBoard, has been wandering around my house for about half an hour now without (...) (28 years ago, 28-Apr-96, to lugnet.robotics.handyboard)
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