 | | Expansion board problems
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| Hi Finaaly got my exp board working and now yet another problem. When checking sensors, every 4 secs or so I always get 255.(when printing sensor value to screen would be like : 2,2,2,2,2,2,2,255,2,...,255,etc., i knew its not the sensor because (...) (27 years ago, 18-Mar-00, to lugnet.robotics.handyboard)
| | | | | Sonar
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| Hi I use a Polaroid sonar ranging modul with the HB and the expansionboard. It all went well, but by mistake i put the digital in from J12 to a digital out. Since then i get the result -1 and the sonar isn't clicking. I've tried with another sonar (...) (27 years ago, 18-Mar-00, to lugnet.robotics.handyboard)
| | | | | Reset of handy board
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| hi, may i ask how much current passing through HB will cause the HB reset ?? i have a big problem on my HB, I power one Polaorid 6500 sonar, 1 servo and 2 hacked servos by seperated 6V 1300mAh NiMH battery with common ground, and power 2 GP2D02 by (...) (27 years ago, 18-Mar-00, to lugnet.robotics.handyboard)
| | | | | IR emitters !
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| Hi ! Can we connect two ir emitters to the HB IRout port (female connector J7) for left and right obstacle detection ? If so ! how do we distinguish between the left IR led and right IR led transmission since I'm planning to use only one Ir detector (...) (27 years ago, 18-Mar-00, to lugnet.robotics.handyboard)
| | | | | Re: sonar
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| (...) I don't think it matters much. I used a 'lytic and it works fine. If you have another kind, it probably wouldn't hurt to give it a try. -- Will +---...---+ | ^^ <^ ^> | | / òó ó°° \ | | / =Y= U \ | | Wendy, Will, Tatoosh & Tenzing | (...) (27 years ago, 17-Mar-00, to lugnet.robotics.handyboard)
| | | | | Re: sonar
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| Just wondering... in reference to the modification on the Polaroid 6500 sonar ranging board, there's been two different assertions. Should the 0.1uF cap be of a polarized (e.g. electrolytic, tant, etc.) or non-polarized variety (as stated below)?... (...) (27 years ago, 17-Mar-00, to lugnet.robotics.handyboard)
| | | | | Re: windows nt and handyboard
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| Thanks for all of you that sent me e-mail regards your experience with hb and windows nt. They are a pretty useful information and i am considering them. lourdes (27 years ago, 17-Mar-00, to lugnet.robotics.handyboard)
| | | | | programming for step motor questions...
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| Hi, I would like to use step motors in my robot and have had success using the MC3479 stepper motor IC, it is simple to use, just needs a direction bit and a pulse, but I really don't know how to program my hb to do this. I mean I can figure out how (...) (27 years ago, 17-Mar-00, to lugnet.robotics.handyboard)
| | | | | Getting the L297 into wave drive mode
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| Hi I'm using the L297/L298 chip configuration to run 4-phase unipolar stepper motors. Currently I'm driving them in half-step mode but I'm not getting enough torque.. :( Has anyone successfully gotten the L297 chip into wave drive mode? I believe I (...) (27 years ago, 17-Mar-00, to lugnet.robotics.handyboard)
| | | | | Re: source for assembled expansion bds?
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| I got my assembled & tested expansion board via air mail from Patrick Hui of the Robot Store, HK ((URL) fairly quickly, and at an excellent price. Im not affiliated with his company in any way, but I've always gotten prompt, courteous service from (...) (27 years ago, 17-Mar-00, to lugnet.robotics.handyboard)
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