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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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| | Re: IC Timing
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(...) I don't know if this is really the best way to do it, but I hacked this up real quick for a previous project. You put the stuff you want to time inside the loop. It will print out the numer of times the loop executes per second. The display is (...) (28 years ago, 27-Apr-96, to lugnet.robotics.handyboard)
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| | IC Timing
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How do you time a running process? I would like to prune the running time of a part of my IC program running in the HandyBoard, to improve the response of my sensor testing. I assume you could set a clock and then sample it later but I am a little (...) (28 years ago, 27-Apr-96, to lugnet.robotics.handyboard)
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| | 'Cher' responses
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Ok, I got it. Apparently my service provider wasn't keeping any of my mail, so I didn't get any of your first responses to my question. Anyway, thanks to all of you for replying a second time. Patrick (28 years ago, 26-Apr-96, to lugnet.robotics.handyboard)
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| | Re: "cher" archives
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Hi Patrick, I don't know if cher has a web server on it, but you can ftp anonymously to: cher.media.mit.edu login: anonymous password: <your e-mail address> Check in the /pub/projects (I think). Good luck! - Prabal (...) (28 years ago, 26-Apr-96, to lugnet.robotics.handyboard)
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| | Re: "cher" archives - Resend
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Well, I tried to send this out when Patrick first asked, but apparently it didn't make it -- here's the second try: (...) (28 years ago, 26-Apr-96, to lugnet.robotics.handyboard)
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| | "cher" archives
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(...) but here goes: I've noticed more than a few referrals to "the cher archives" since I've been on this mailing list, but I haven't figured out how to get there. Can someone give me the URL, and maybe tell me if there is a way to look up specific (...) (28 years ago, 26-Apr-96, to lugnet.robotics.handyboard)
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| | Re: Thanks for HandyBoard
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(...) This may not be EXCATLY what you have requested, but it is a close as I've come! Check out how I've added contrast control to my LCD panel. (URL) *Brian Schmalz /---...---+---...---\ | Brian Schmalz | Building autonomous | | 723 E. John Street (...) (28 years ago, 25-Apr-96, to lugnet.robotics.handyboard)
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| | Thanks for HandyBoard
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I am a vetern kit builder with my roots in the hayday of HeathKit, and I would like to take the opportunity to thank all concerened in the design and production of the HandyBoard. Of all the controllers I have purchased this one has been the most (...) (28 years ago, 25-Apr-96, to lugnet.robotics.handyboard)
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| | Forth on HandyBoard?
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Is it possible to program the HandyBoard in 'Forth'? If so how does one go about it? I assume the compiled Forth program must be further converted into a PCode. Is there a version of Forth that does that at compilation? Anyone know where to look? (...) (28 years ago, 25-Apr-96, to lugnet.robotics.handyboard)
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| | thanks! (problem fixed)
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Thanks to all the extremely useful information everyone was able to provide me, I have been able to fix my COM port problem. I changed some CMOS settings, moved the internal modem's IRQ to 10, and configured the new port as COM2, with a new IRQ. (...) (28 years ago, 24-Apr-96, to lugnet.robotics.handyboard)
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