 | | 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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