 | | KIPR Kit
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Is anyone else using the Mobile Robot Development Kit from the KISS Institute? I was curious to see how other people had mounted the break beam sensors which come in the kit onto LEGO pieces. I've been having a lot of trouble getting them aligned (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | Semiconductor Specific Search Engine.
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Semiseek now has the latest Semiconductor News and New Product Announcements from the Manufacturers of Semiconductor Equipment. Follow the latest Industry trends. Submit your Company Press Releases and New Product Announcements. See the most popular (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) you are confusing mAh capacity (the amount of energy stored in the battery) with how fast the batt can deliver the power. the two are not the same. the fuse is in the design because nicad cells can deliver a *DANGEROUS* amount of power if (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) CAVEAT: I'm probably full of it, but here goes.... My understanding is that a 12 V NiCd battery pack would not damage the HB, since the HB can handle up to 12 V. The problem is that in order to charge a 9.6 V battery pack, the HB built in (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) The self-resetting thermal fuse that's part of the HB ought to be just fine (see item F1 on the HB schematics). I think that if you use a 9.6 V NiCd battery pack with less than a couple thousand mAH capacity, you probably have nothing to worry (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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Is there a general guide to what fuse I should have with a certian current? Please excuse some of this if it doesn't make sense, I am learning a lot of electrical concepts as I go... Would the internal resistance of the battery be shown if I measure (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) Yes. Exactly the right point. The two different things to woory about, are the mA/Hr rateing of the battery (which tells you how long a particular current can be delivered), and the _internal resistance_ of the battery, which limits the (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: L297
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(...) If you mean "bipolar" (like floppy head-motors) motors, than i think that i can help you :) -- sincerely Mike Schubert _ |_| Mike Schubert Tel.: ++49-351-3 18 09 15 | |__ interface business GmbH Fax.: ++49-351-3 36 11 87 | |_ | Naumannstrasse (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) use a (...) mAh (...) Oh, you are missunderstands some "electrical" details :) You can use a battery pack with 9.6V and 2000 mA or more if you like, because the unit is exactly mA/h. It means you can get this current over a time of one hour. (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: GP2D02
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(...) Hi, I have a bunch of information about interfacing GP2D02's at this address: (URL) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | L297
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Has anyone ever used the L297 and L298 to run 4-phase stepper motors before? If so please reply to me beacause I'd like to ask you some questions... Thanks Sean (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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Well, the battery pack I am using is rated for 1450 mAh.. so far.. I have not seen any probems... I was speaking of rf control earlier.. Thanks.. -me (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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Hi, So a 12 volt 10xAA battery pack (brand new from bg micro) would be damaging to the board? David -----Original Message----- From: Ray Tang <raytang_1@hotmail.com> To: lugnet.robotics.hand...lugnet.com <lugnet.robotics.han...ugnet.com> Date: (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | LCD functions?
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Hi all, Was wondering if there were some libs out there for contolling the LCD screen? Like scrolling with the knob, panning text; like haveing a Message move across screen etc.. Thanx -Roboman AKA-Alex (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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Hi, Eric Davis <Eric_Davis@mindspring.com> wrote in message news:8EE380D7Cericda....63.236... (...) a (...) The recommended battery pack I ordered from DigiKey is rated 9.6V at 500mA. So, Don't over kill the board. And I think the motor chip L293D (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Strange problem of expansion board and handyboard
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It may be because you use the wrong lib_hb.c. There is one that works with the expansion board (one without digital(), analog() and raw_analog() defined, but the expsenc.c will define them so that the I/O port on the expansion board will work). It (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | GP2D02
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I can't seem to get any reading off of my GP2D02 sensor? I'm just wondering if I screwed up in connecting to the HB. If someone could tell me where they should be connected on the board that would be great! (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Strange problem of expansion board and handyboard
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it's all a software config issue, there's nothing wrong with your hardware. two questions: 1. what is the root library file that loads when IC starts up, and 2. what files are listed there? f. In your message you said: (...) d (...) s (...) I (...) (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Just some questions...
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Hey all.. I got my handyboard a few days ago.. and I have some questions.. 1) What is a good battery to use? I don't have 8 nicad batteries.. I use a R/C car 9.6V battery pack.. is there some specific need for certian mAh values? 2)What method did (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Strange problem of expansion board and handyboard
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Hi all, I had a handyboard and an expansion board, they do not work together. I had definitely unzipped the explib into the libs directory and overwrote the files it need. But a strange problem occurs, when the board is downloading files at (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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