 | | Re: Burning hot motor driver chips.
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Anthony, (...) Yes it sounds like it. (...) It does. The L293D still works after it cools off, doesn't it? (...) I suspect you are going to need more than just two piggy backed L293D. (...) You might have a look at Ben Wirz website, he sells various (...) (27 years ago, 9-Nov-97, to lugnet.robotics.handyboard)
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| | Burning hot motor driver chips.
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After not doing anything with my HB for a few months, I decided to buy a cheap RC car and use it as a platform. Anyway, I get a car that takes 6 AA batteries because I figure that the main motor is probably 9v (maybe that was a faulty assumption). (...) (27 years ago, 9-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Shaft Encoders
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(...) We used the line of "S1" optical encoders from US Digital Corp. ((URL) and found them to work superbly. The encoders are light (~.07 lb) and small (~1.7" x 1.3"). The company is a "Value Added Retailer" and adds housings/bearings/whathaveyou (...) (27 years ago, 8-Nov-97, to lugnet.robotics.handyboard)
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| | IR devices
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I recently opened up a mouse (the computer kind, not the live kind) and found what I assume to be 2 IR shaft encoders which it uses to translate the direction you are moving the mouse. Is there a way that I could remove them and turn them into shaft (...) (27 years ago, 7-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Help in Assembler
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What is "ORG"? Does it matter what number you use? Is the number a memory location? Thanks for any help! :) ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical (...) (27 years ago, 7-Nov-97, to lugnet.robotics.handyboard)
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| | Procedure to get off mailing list?
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Hi all, I was wondering how do I get off this mailing list? Thanks..... ===...=== Dale Bergman P.Eng Systems Engineer T Telehealth Solutions Computing Devices Canada. 1020 68th Ave N.E. Calgary, Alberta, Canada. T2E 8P2 Voice: (403)295-6778 Fax: (...) (27 years ago, 7-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Shaft Encoders
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Has anyone used an comercial optical encoder to monitor wheel velocity on their robot? Most of the ones i have seen use between 100 and 500 pulses/rev. This is a lot for the little software driven encoder routines to keep up with. I was just (...) (27 years ago, 6-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Shaft Encoders
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On Wed, 5 Nov 1997, David W. Kammer wrote: We are interested in connecting two shaft encoders to the wheels of our (...) You did not give specifications! Degrees/pulse (optical) or degrees/volt (resistor or LVDT), Speed maximum, Shaft size, and etc. (...) (27 years ago, 6-Nov-97, to lugnet.robotics.handyboard)
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| | UK SUPPLIERS OF PCBS
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Bill, BB> Does anyone know of UK suppliers for Handy Board PCBs and/or BB> component kits. I looked around a bit for a UK supplier too and found.. well, zip, nothing. So eventually I ordered a Handyboard PCB from Douglas Electronics in California. (...) (27 years ago, 6-Nov-97, to lugnet.robotics.handyboard)
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| | setting config reg with Win95
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We are currently building a dozen Handy Boards here at the Missouri Area Robotics Society (MARS). Everything is going very well for us, except for the members who are using Win95. The problem has been getting the config register set to 0xC0 with (...) (27 years ago, 6-Nov-97, to lugnet.robotics.handyboard)
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| | Australian Suppliers
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Does anyone know if there is anywhere in Australia that sells Handyboards in either kit form or the PCBs? ___...___ David Perrett Product Development Engineer VIAscan Quality Assessment E-mail: dperrett@vqa.gov.au Phone: 3807 8622 Fax: 3807 8633 (...) (27 years ago, 6-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Help in Assembler
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(...) I think this might be what you want to do: varind FCB $00 * 0 <= varind <= FF ORG $c100 * some location of table var1 FCB 1 var2 FCB 7 var3 FCB 4 . . . varN FCB ? . . tabadr FDB #$c100 * address where table is stored start ORG $c000 LDX tabadr (...) (27 years ago, 6-Nov-97, to lugnet.robotics.handyboard)
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| | Help in Assembler
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Hi, Consider a part of a program: var1 FCB 1 var2 FCB 7 var3 FCB 4 . . . varN FCB ? If I want to use a variable (say X) to determine when to use "var1" to "varN", how can I do this (other than a whole bunch of CMP's). (i.e. when X = 3, I want to (...) (27 years ago, 6-Nov-97, to lugnet.robotics.handyboard)
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| | Shaft Encoders
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We are interested in connecting two shaft encoders to the wheels of our Handy Board - controlled mobile robot and use the ICW encoder instructions. Does anyone know of a good source of encoders? Is there anyone willing to share your experience with (...) (27 years ago, 5-Nov-97, to lugnet.robotics.handyboard)
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| | Expansion (infinity and beyond !!!)
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Dear All, OK people, Challenge time while Freds away !! I am trying to work out some code (without the aid of a HandyBoard !) My C is a bit limited, so any help would be gratefully received. I would like to add another 74HC374 to the board, with its (...) (27 years ago, 5-Nov-97, to lugnet.robotics.handyboard)
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| | Manual for 68HC11, etc.
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You can get the manuals sent to you (completely free) by filling in the literature request form at : (URL) is a link to the index of the available manuals, I found that the manuals I found useful where : M68HC11RM/AD The 68HC11 Reference Manual (...) (27 years ago, 5-Nov-97, to lugnet.robotics.handyboard)
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| | Intial Download Problems
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Fred and others, I wrote before saying that my HB is not able to execute IC. Fred wrote back with the idea of it being related to the 68HC11, the memory or the 74HCs. Since I am not the richest of all college students, I am not able to just buy a (...) (27 years ago, 4-Nov-97, to lugnet.robotics.handyboard)
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| | Modified Pcode!
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Has anyone modified the pcode to page a second 32k ram chip using TOC5? Is it possible? Tim North tim.north@symbios.com (27 years ago, 4-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Cost of PCBs in UK
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I have replied to Colin personally on this, apoligising for flaming him on the board prices. Since no one seems to do the kits in the uk (yet), I was looking to pick one up there. However the cost of three months away is such I think I'm in no (...) (27 years ago, 4-Nov-97, to lugnet.robotics.handyboard)
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| | Cost of PCBs in UK
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(...) If anyone else finds the price of my Handy Board PCBs excessive please contact me directly rather than placing this type of comment on the list. I will happily discount the price, to cost if necessary, to students and anyone else with a (...) (27 years ago, 4-Nov-97, to lugnet.robotics.handyboard)
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