 | | Re: motor ports
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Russell, Just a suggestion from experience. Before you invest a lot of time developing hardware to expand the capability of the Handy Board, I suggest you write the program. Just "stub out" the motors you don't have with dummy subroutines, or for (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Generic expansion board?
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Has anyone ever created a generic expansion board for the HandyBoard? What I mean by generic, is a board with say a .10 grid hole pattern and some power and ground traces . A board or boards like this with custom circuitry, could be stacked on top (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Anyone have the HB in continuous powerup?
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Hi all, Is anyone using the HB in a continuous powered up situation? Any problems with it? Also, Anyone know how to use a Timer circuit (Date & Time) with the HB? I'd like to have timed (Daily/weekly/monthly) events. Thanks! Gerald (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | The Onboard memory Circuit
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I have some questions about the handyboard memory: 1) Does it matter if i use a 70ns Eprom instead of the 100ns one? 2) Can you use EEproms or FlashRoms instead of the Eprom ? 3) Can i use more memory than the 256 KB ? And is there a exchange (...) (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | RE: Motor Ports
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Russ, This would not suffice. The PCODE would need to be changed as well. The end result of the motor interface routines in C in LIB_HB.C is that RAM locations 0x0E, and 0x22-0x25 have the direction and speed pattern info for each of the four (...) (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | Re: UCOS
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I'm also very interested in using UCOS in HB. IC is very slow and have very stupid multitasking. Until now I find only basic HB library for ICC11 ((URL) library is at ftp://ftp.imagecraft.../libhb.zip It may by usable with UCOS. ===...=== Andrew (...) (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | improper removal from list.. i apologize.
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please remove jackedin@earthlink.net from the handyboard mailing list.. this is not the proper way to ask, but am aware of the trouble for the admins to remove a user. i cant access earthlink, any other way than fetchmail at the moment.. thanks and (...) (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | list
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Plese remove me from the e-mail list (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | Fw: 360 degree ranging
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I'm building a theory about how to make a 360 range finding system. It only needs to be accurate out to, say, a foot or 18 inches. basically it's a "before you bump" bump system. I've thought of using a series of IR emitters/detectors in a circular (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | 360 degree ranging
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I'm building a theory about how to make a 360 range finding system. It only needs to be accurate out to, say, a foot or 18 inches. basically it's a "before you bump" bump system. I've thought of using a series of IR emitters/detectors in a circular (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Re: TI SN754410
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(...) There is nothing wrong with using fuses (or circuit breakers) on motor circuits. This can protect the chips, AND the motor. (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | TI SN754410
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Hi, this must have been asked before. But where can I get the TI SN754410 from On-line ordering if possible or a UK supplier. I managed burn one out on my Handy Board at the weekend :o( is there a way to protect these chips from motors that take too (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | RE: HB and Acceleration
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Hi Philsky; I've seen videos of some of these "serious amateur" rocket launches, and from that I would say acceleration is your prime concern, followed by shock and vibration. I'm assuming you will substitute a lightweight 9V lithium battery for the (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Re: HB and Acceleration
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(...) Most likely not, Max, unless I save up a lot of money and get a daVinci organizer or something like that and write up a donwlink program... :-) There's this thing here in Wisconsin (And in Michigan and Iowa) called "Rockets for Schools" It (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | cant control motor speed
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dear fred and readers my motors is 30V. i am using the external batteries as instructed on the website. but i cant control the motor speed using the command: motor(0,...) i then remove the external batts and supply power to the other power pts(top (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | DL problems
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I put together the HB shortly after it first became available. This is key because it worked-downloading and all. I put it down for a year because of family problems but all that time left it plugged in because of the Ni-cad. I feel that should (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Motor Ports
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Hi all, Is it possible to add more motor ports to the handy board by simply copying the existing motor drive circuit and putting them on the expansion header where the extra chip select lines are. if so what changes would be needed to make IC (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | motor ports
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Hi all, Is it possible to add more motor ports to the handy board by simply copying the existing motor drive circuit and putting them on the expansion header where the extra chip select lines are. if so what changes would be needed to make IC (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Expansion board motor outs???
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I just wanted to verify something before I went and purchased the expansion board. Are the HB's motor outputs still available when using the expansion board. It is unclear in the doc. Thanks, Aaron (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Wireless Handyboard Link ?
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Hello, I am investigating createing a wireless serial link between my PC and handyboard. The cheapest solution I've found is the RF module from Lynxmotion. Does anyone have any experience with this, or perhaps suggestions for simpler or more (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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