 | | Re: Geting Started?
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I would also look at "the art of electronics" it covers assembly and has the basics plus more of electronics. jm (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LM34 temp sensor to handy board?
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Jeff, I would highly recommend the LM358 single or dual supply op-amp. It comes in a dual package and works great on +5v only. The LM339 is a single supply comparator. There are several manufactures: motorola, and national both have data sheets on (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | What is the better way to comunicate handyboard???
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I want to connect various handyboard in a ring configuration, and i think do it via the SPI port. I need aprox. 50 meters between handyboards.Can the SPI support that distance ??? If don't how i can do that. I don't know if use SPI, RS-232 or RS-485 (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | RE: Smoking serial/charger board...!!!
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Ihave this problem, the reason be a capacitor in short randomly. Touch every cap., and search any hot , that is the very fast way to discover :))) !!!! Then unsolder any pin of this cap and search again. So probably the 5 volts at the out of 7805 go (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Servo libraries
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See the 'Handyboard FAQ' -it's linked from the main page and explains the .icb file linefeed problem. (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | Servo libraries
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Can any one help me out with problems downloading servo.icb.I'm using the shareware version of Ic and when I type load servo.icb the screen goes black and all of a sudden I'm back in Windows 95. Thank you, Joe Martin Email:joema@mpx.com.au (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | Re: 2nd line of display
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Have you considered storing the first line as a string and the second line as a string too so you can "reprint" the first line with the same contents making it look like only the second line was updated? I've never done it before so this is just off (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: headers
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Mouser Electronics sells them. No minimun order. www.mouser.com (or something like that) ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Which 68HC11x1xx
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Where can one find info on the A1 vs E1 differences you mention. This is not in the 68HC11 reference manual (pink book). Thanks, Clay Timmons ctimmons@asic.sc.ti.com Dallas Personal Robotics Group www.dprg.org ---- Clay, all this and more is (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | RE: Which 68HC11x1xx
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If you look in you 68HC11 Reference manual in sections 2.1.1 to 2.1.5 there is a description of the differences and there is a table showing the memory sizes for the different types (by the way the table misses the 8K ROM in the MC68HC11A8 entry in (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Which 68HC11x1xx
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(...) Fred, Where can one find info on the A1 vs E1 differences you mention. This is not in the 68HC11 reference manual (pink book). Thanks, Clay Timmons ctimmons@asic.sc.ti.com Dallas Personal Robotics Group www.dprg.org (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Which 68HC11x1xx
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'a0 is an earlier and discontinued version of the 'a1. 'e1 has some different features than the 'a1 but is almost identical for HB purposes. 'e1 has a little more internal RAM (which isn't really used by Interactive C) and some more flexibility on (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Smoking serial/charger board...!!!
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make sure you have a telephone-style and not network-style RJ11 cable. Here is how you tell if you have a telephone-style or network-style RJ11 cable. Hold the two ends together, metal contact side up, as if you were trying to plug them into each (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Which 68HC11x1xx
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Hello I want to build a Handy-Board. Now I saw, that I can use several different 68HC11 Processors. In the partlist is the 68HC11A1FN, in the assembly instruction the MC68HC11E1FN in some pictures in the same instruction a picture with the (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | RE: New list member
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In response to David's post about using the Mini SSC 2 boards and producing a walking robot (my aim is a 12 servo 6 legged walker) I am writing to provide the information that I have found. I have posted a similar question to David about the MiniSSC (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Smoking serial/charger board...!!!
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Well, Today I dig up my handyboard which was working fine with the serial/sharger board and all the last time I used it a few months ago. After a fresh overnight NiCd charge using the onboad power connector (i.e. not using the serial/charger board), (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Spi distances
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I want to connect various handyboard in a ring configuration, and i think do it via the SPI port. I need aprox. 50 meters between handyboards.Can the SPI support that distance ??? If don't how i can do that. Any help be beatifoul. Thanks in (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: New list member
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Regarding your problem with the jack on the serial line getting hot and melting (uh oh), I believe it is because the HB and Mini-SSC serial lines aren't quite compatable. If you're lucky, you might be getting data through (random coincidence?), but (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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| | 2nd line of display
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I was wondering how to access the 2nd line of the display directly. In my application I would like to update the bottom line without changing the top line. Anyone know any way to do this? Any other info on direct positioning of the cursor? Thanks, (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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| | New list member
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Just wanted to introduce myself as a new mailing list member. I've been reading the archives for a while, but my workplace only got the mailer working correctly to external locations yesterday. Anyway, I got my HB a while ago from Digital (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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