 | | Re: Servo controllers
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Yes, there is a way. Check out the serial servo controllers at (URL) one of these that you use controls up to 8 servos, and you can chain a bunch of them together and go servo nuts. -- Will Bain P.S. -- I haven't yet tried these myself. I'm curious (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Problem on loadind Expansion board files
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The problem is simply that the new expansion board code supercedes a couple of functions in the old lib_hb.c (and possibly in lib_hb.icb, too; I can't remember). If you go to the HB web site, you'll find a new version of lib_hb that's compatible (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | RE: Solar charging and OWI Arm
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Whatever portion of the 40 mA that the HB requires for it's operation will "float over" the battery pack and be consumed by the board. The rest goes into the battery to recharge it. I haven't measured the current draw of my robot, but of course your (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Servo controllers
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I understand that a handyboard in combination with the expansion provides a total of 6 servo motor controllers. However, I need 12 controllers. Is there any other ways to achieve this other than buying another set of handyboard + expansion board? (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | persistent globals
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Hi all Has anyone worked on persistent global variables. In the manual it says persiststents can keep their value on reset conditions and multiple downloads. i declared persistant globals in my program and they do keep their value on reset (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Problem on loadind Expansion board files
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hi all, I had post a message about the exp board days before. Actually, the problem had not been solved yet. I post the following message that was shown when I was trying to load the exp files to the board. I don't know why this happen, since my (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Solar charging and OWI Arm
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Oops. I just realized I forgot to tell you how to connect the solar panel. Solar panels are almost always installed with a diode to block reverse voltage that would actually suck energy out of your battery when the sun goes down. For a small solar (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Solar charging and OWI Arm
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Any 12 V solar panel would help to add some juice to the battery, but the board probably can't live on just 40mA. The recommended adapter is 500 mA, which would charge the battery about a dozen times faster. Still, I have some solar cells just (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Solar charging and OWI Arm
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Hi, Has someone builded a battery charger for the HB, using a solar panel, is a 12 v / 40 mA panel enough for that?, and how to connect it?. Also, has someone tried the OWI robotic arm ? Thank You Jose Luis (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | Re: HandyBoard A/D converter?
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This calls for a signal conditioning amplifier. Since you're not worried particularly about slew rate (the handyboard won't do much more than 12khz sample rate) you can pretty much use any op-amp you want. Ideally you'd use a single supply one, set (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | Re: HandyBoard A/D converter?
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The 68HC11 has references for the range of the A/D converter. In the HB design they are hardwired to 0 and +5. I believe the pin is Vrh at (URL) and is currently wired to +5. --chris prosser From the motorola manual: 2.2.7 A/D Reference and Port E (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | Re: colour sensor caliberation
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May I suggest you test your system for response to invisible light? You could shine an Infrared LED onto it to see what you read. There are also "UV Cutoff" Filters available at photography shops supplying color darkroom equipment (UV from the bulb (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | Re: KIPR Kit
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Hi, In the kit you will find a number of pulleys about 1 inch in diameter. These are narrow enough to fit through the sensor. They have six holes in them and if they are on an axle, will give you 12 pulses per revolution - 2 pulses per hole. One (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | HandyBoard A/D converter?
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Dear Handy Board Masters, I am trying to use the handy board for some A/D conversions. The converter is set up on a 5 volt scale, the converter is an eight bit converter. Over this range I get a resolution of 19.5mV per Step. My application is (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | LUGNET spammed (was: Semiconductor Specific Search Engine)
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Hey, folks, (and Todd Lehman in particular) Did you catch this spam over in lugnet.robotic.handyboard? I hope that this trend doesn't continue. :^( LUGNET is one of the few Internet institutions I use that is nearly 100% content, and spam-free. (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard, lugnet.general)
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| | colour sensor caliberation
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Hi all I mailed the list a few weeks back about implementing a colour sensor. someone suggested using three photo resistors with red, green and blue filters over it. I have built the sensor with four photo resitors, three with the different filters (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | A/D converter
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Dear HB, I am trying to convert an anolog voltage from a thermocoupler to a digital value and display it on the LCD. I thought this could be accomplished by changing the high reference voltage V(rh) from the default 5V to 600mV to get the max (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Using ICC11 with the handy board
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John, The 1 KHz system interrupt is set up in the IC pcode, which you are not loading. Furthermore, the bootloader for the Handy Board is loaded into the first 255 bytes of on-chip RAM when you load pcode, and disappears on reset. It can't cause you (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Using ICC11 with the handy board
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Hi John, Using compiled programs with the Handyboard is not difficult, the steps used to download a compiled program are exactly the same as downloading the "pcoder" file in the Handyboard documentation. The compiled program is used instead of the (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | Using ICC11 with the handy board
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Dear Sir or Madam, Let me preface this email by saying that I am an extreme novice at programming microprocessors so please try not to laugh to hard at my questions. I recently started an electronics project for which I chose to use the handy board (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | 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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