 | | DIP switch in headers
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(...) Actually, this sensor connector layout was my idea back for the Rev 2 6.270 board, and, yes, I did have both keying, and, secondarily, dip switches in mind when I designed it. However, plugging in dip switches turned out to be a bad idea, (...) (27 years ago, 23-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Handyboard Expansion Board
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(...) Well if you are not using it, you could use the trim pot to drive a menu. cya! .---...---.. | Remi Desrosiers | "My Youth in Arcadia" | harlock@videotron.ca . . (27 years ago, 22-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Handyboard Expansion Board
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Actually, unless Fred has changed the way the sensor connectors work he was quite clever in that the spacing of the I/O connectors is exactly dip switch width. Basically you can plug in a DIP switch into the I/O header and get as many switches as (...) (27 years ago, 22-Aug-97, to lugnet.robotics.handyboard)
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| | Handyboard Expansion Board
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Hi folks, I know it's probably a bit too late, but couldn't you somehow add some DIP-switches to the expansion board, like the ones on the 6.270 ? This would be very nice for quickly changing the way a program works, without hanving to recompile it. (...) (27 years ago, 22-Aug-97, to lugnet.robotics.handyboard)
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| | connecting (LEGO) motors
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Hoi, I am still puzzled about connecting motors to the handyboard. I have seen plenty of motors wich draw less current then 600 mA. But still they have a couple of Amps stall current. Are the moter drivers chips protected for this ? Are all LEGO (...) (27 years ago, 22-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Books on bots
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Go to amazon.com...they have all the good robot books. (27 years ago, 22-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Books on bots
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(...) Some titles of interest would be the "Robot Builder's Bonanza"(99 Inexpensive Robotics Projects) and Mobile Robots- Inspiration to Implementation- I don't Know if they still cary it but I purchased "Sensors for Mobile Robtics" from them not (...) (27 years ago, 22-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Handyboard with EPROM
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Yes, there is a pin compatible EPROMs and EEPROMs for the Handyboard's RAM chip. However, without the RAM chip the board is limited to the 256 bytes (or 512 bytes in some versions) of on-chip RAM which can be pretty limiting. Another option is to (...) (27 years ago, 21-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Books on bots
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(...) Hello Justin, Check out the reference section of my web page at (URL) are lots of books, magazines, and other sources of information listed there along with ISBN, contact information, etc. John Whitten brat@naxs.com (27 years ago, 21-Aug-97, to lugnet.robotics.handyboard)
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| | connecting (LEGO) motors
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Hoi, I am still puzzled about connecting motors to the handyboard. I have seen plenty of motors wich draw less current then 600 mA. But still they have a couple of Amps stall current. Are the moter drivers chips protected for this ? Are all LEGO (...) (27 years ago, 21-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Books on bots
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Could you post the names of any useful books you find? For that matter, can anyone else suggest some good (and affordable...) books? Particularly on elctronics in general, the 68hc11(a1), and infrared? thank you, -- Justin Kao <jkao@compuserve.com> (27 years ago, 21-Aug-97, to lugnet.robotics.handyboard)
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| | external memory
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Hi, has anyone been able to successfully added another 32k ram chip onto the handyboard? In MObile Robots, it mention that this was possible for the HC11-based boards. If so, how involve is it? (27 years ago, 21-Aug-97, to lugnet.robotics.handyboard)
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| | compile ICB files under Windows
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Hi all, it turns out that the answer for doing this has been available for two years (!) Kent Farnsworth put together a set of GNU compiler tools, Randy's modified AS11 assembler, and a DOS version of the "as11_ic" Unix shell script, all working for (...) (27 years ago, 21-Aug-97, to lugnet.robotics.handyboard)
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| | Books on bots
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Hello All, Just doing some late night web searching and found some pretty good info. I clicked on the Barnes and Noble banner add and did a search for "robotics" and needless to say I'm still going though their list on this subject! I had no idea (...) (27 years ago, 20-Aug-97, to lugnet.robotics.handyboard)
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| | Re: interfacing motors
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You can "piggyback" two 1 Amp chips. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art ---...--- (...) (27 years ago, 20-Aug-97, to lugnet.robotics.handyboard)
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| | Handyboard with EPROM
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Can I put a Rom memory in the handy board? I don't need a battery , so i think to remove that and the battery. If is not posible...can add a ROM in a expansion board and download the code in the boot ? Thanks... German Pablo Gentile German Pablo (...) (27 years ago, 20-Aug-97, to lugnet.robotics.handyboard)
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| | servos ?
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Date sent: 19-AUG-1997 17:18:58 Hi, Could someone please give me a specific recommendation of a good servo to use for Lego robots with handyboards. I looked at TowerHobbies and robotShack and was overwhelmed by their lists. (I'm obviously just (...) (27 years ago, 19-Aug-97, to lugnet.robotics.handyboard)
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| | Re: interfacing motors
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(...) One way to accomplish this is with an H-bridge motor drive other than the L293 on the HB itself. I one out of discrete components some time ago, using darlington TIP series transistors, and it works great. (Kudos to Chuck McManis.) It can (...) (27 years ago, 19-Aug-97, to lugnet.robotics.handyboard)
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| | interfacing motors
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hello, all you happy roboters! /I have a question about interfacing a larger motor to the HB. It runs on 6v & draws 1-2amps, depending on the load. I already have a 6v 7amp lead battery that I want to use to power the 2 motors. What would be the (...) (27 years ago, 19-Aug-97, to lugnet.robotics.handyboard)
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| | IR Transmitter
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Hi all, I was wondering if anyone could recommend an IR transmitter for use with the Handy Board's IR output (J7). If possible indicate manufacturer/part no. or supplier/catalog no. if possible. I was also wondering if anyone could tell me how (or (...) (27 years ago, 19-Aug-97, to lugnet.robotics.handyboard)
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