 | | 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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| | REC80 Transmit
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Folks, After writing code to decode REC80 signals I got inspired to write code to transmit them as well. But I sat on the idea for quite a while and didn't get around to it until now. So this weekend I worked on the idea and it is now complete. What (...) (28 years ago, 24-Apr-96, to lugnet.robotics.handyboard)
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| | Edit within IC
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How can we edit file without quit IC, I don't have emacs in computer, so can i use like the ms-dos edit. Thanx. Hachemi (28 years ago, 24-Apr-96, to lugnet.robotics.handyboard)
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| | adding a third serial port
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(...) I agree that this is a most annoying problem. On the other hand, other types of computers get away from this problem by not being so expandable. Some day, when "plug and play" actually is implemented by most of the hardware vendors, some of (...) (28 years ago, 23-Apr-96, to lugnet.robotics.handyboard)
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| | Re: pc com port woes
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(...) Yes, you need to use a serial card inside your computer that offers add'l com ports. It isn't clear from your message if that is what you have. If so, the trick you are missing is that multiple com ports cannot share the same IRQ. Most or all (...) (28 years ago, 23-Apr-96, to lugnet.robotics.handyboard)
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| | Re: pc com port woes
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There is away around this. Configure your com ports to use a different IRQ. Typically the second parallel port IRQ (5) is available. If neither your modem nor your com ports will do this then you will need to buy a new com port board that has (...) (28 years ago, 23-Apr-96, to lugnet.robotics.handyboard)
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| | Re: Using low voltage motors
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In your message you said: (...) What do you mean, "from the 20V range"? the HB supplies about 8 to 9v to its motor outs. a 30 ohm resistor would be about right for the 200mA current level. The resistor would drop 6v leaving about 2 for the motors. (...) (28 years ago, 23-Apr-96, to lugnet.robotics.handyboard)
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| | pc com port woes
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Today, for the first time, I decided to actually try out the new version of IC on my new Pentium, running Win 95. To make a long story short, it doesn't work. Why? Because I've got two devices, my mouse and my internal modem, which are always (...) (28 years ago, 23-Apr-96, to lugnet.robotics.handyboard)
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| | Using low voltage motors
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I'm using two low voltage motors that come attached to a really cool gear box. Or rather I want to use these motors. Each seems to work best at about 2.0 V. When running they draw about 200 mA. I tried running them in series with a 40 Ohm resistor (...) (28 years ago, 23-Apr-96, to lugnet.robotics.handyboard)
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| | Re: HB pins ?
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(...) Each sensor "connector" is a column of pins in the following format, where "X" denotes a pin position: X X X So, if you look at the lower edge of the HB, you have 16 positions in a bank of 9 and 7: XXX...XXX XXXXXXX XXX...XXX XXXXXXX XXX...XXX (...) (28 years ago, 22-Apr-96, to lugnet.robotics.handyboard)
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| | Re: HB pins ?
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(...) Check out a diaram that I uploaded to cher. It's in postscript as well as GIF format. It has all of this suff on it (and more). I made it out of frustration while I was working on my HB! It's at ftp://cher.media.mit...b/schmalz/ as well as a (...) (28 years ago, 22-Apr-96, to lugnet.robotics.handyboard)
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| | Re: HB pins ?
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Go to the Handy Board web page and follow the links to the schematic diagrams. These will probably answer most of your questions. I have to look them up myself, every now and then. Larry (...) (28 years ago, 22-Apr-96, to lugnet.robotics.handyboard)
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| | Re: HB pins ?
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(...) You might want to check the handy board web site, at (URL) as it gives a diagram of the function of each connector on the board. Also, there's a document about interfacing sensors to the handy board which will give you a pretty good idea of (...) (28 years ago, 22-Apr-96, to lugnet.robotics.handyboard)
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| | HB pins ?
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So far, I don't know wihch is which in the HB I/O pins, I know that 0 to 6 are analog in, and 7 to 15 are dig. in, but I want to know which one is PA1, TOC1, ... and also what does the first row means, the second , the third, and for some of them (...) (28 years ago, 22-Apr-96, to lugnet.robotics.handyboard)
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| | Re: "cher" archives
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(...) Patrick, the URL you're looking for is: ftp://cherupakha.media.mit.edu This is the ftp archive of the Epistemology and Learning Group at the MIT Media Laboratory. The Handy Board information can be found in this folder: (...) (28 years ago, 22-Apr-96, to lugnet.robotics.handyboard)
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| | Sign me up to mailing list
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-- Eric Eisenhower Chief Technical Officer Intelus - a SunGard Company 9210 Corporate Blvd #400 Rockville, MD 20850 ee@intelus.com 301-990-6363 x230 301-330-6707 fax (28 years ago, 22-Apr-96, to lugnet.robotics.handyboard)
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| | Re: it works!
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(...) Great Jeff, I've been planning on doing the definitive breadboard/diagram and document here but haven't gotten to it. Don't worry overmuch about "oversaturation", you are using the transistors as switches and as long as you don't violate the (...) (28 years ago, 22-Apr-96, to lugnet.robotics.handyboard)
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| | IR & Modules / Need help
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I am installing a couple IR emitters and two Radio Shack / Sony IR modules for close in object avoidance. Two main questions: 1) Which software do I use? I have R22-ir.icb which seems to be for the 6.720 Rev. 2.2 board. Will that work? 2) Where does (...) (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | "cher" archives
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OK, I know this is going to sound like a stupid question to most of you, 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 (...) (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | it works!
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Hey, it's time to celebrate! :-) I managed to get the h-bridge circuit working, after thinking about it for a while, tinkering a bit, and reading a couple chapters on transistors... :-) I can run a motor forward and backward, with no problem. The (...) (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | Re: Handy and mini boards
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(...) Yup. Worked for me. :-) I used port D on the HB as a 4 bit output, ran a cable from there to port C on the MB, and used one of the Y signals on the HB as a data ready line. On the MB side of things, I just sat in a loop waiting for YX (where X (...) (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | Handy and mini boards
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Has any one thought of the possibility of interfacing a miniboard to a handyboard? It would be a cheap way to get extra input/ motor control. Is this possible? (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | RE: diodes in h-bridge
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When the motor power is removed, the motor generates a reverse voltage. This voltage can damage the transistors, the diodes provide a conductive path back to the power supply to absorb these spikes. Convieniently, N-channel MOSFETs (and other (...) (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | Code for Polaroid Sonar board
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Hi Kent, I just wanted to let you know that your code for the Polaroid ranging boards is fantastic! It works right out of the box! Keep up the good work. - Prabal P.S. For anyone who doesn't know what I'm talking about, Kent wrote some code to (...) (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | diodes in h-bridge
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What do the diodes across Q1-Q4 do, in Chuck's h-bridge design? I haven't figured that out yet.... (28 years ago, 20-Apr-96, to lugnet.robotics.handyboard)
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| | mailing problems fixed (already! :-)
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Ok, disregard that last message. :-) (28 years ago, 20-Apr-96, to lugnet.robotics.handyboard)
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