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| the new code is improved in the sense that 1. there is a clear schematic and wiring diagram; 2. it does not require the removal of a motor driver chip; 3. all driver code is written in Interactive C. fred (27 years ago, 27-Nov-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Problems starting IC
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| Maarten -- Quickly I can make the guess that your local copy of PCODE_HB.S19 is corrupt. The fact that PCODER22.S19 works indicates there's nothing wrong with your board. Try re-downloading PCODE_HB.S19 from the web site? Fred In your message you (...) (27 years ago, 5-Feb-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Sonar Help!
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| In your message you said: (...) what kind of ext batt are you using? are the diodes in series with that? what voltage do you have on the sonar when it's in operation? are the sonar's ground and the HB's ground connected? fred (...) (26 years ago, 21-Jul-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Downloading
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| yes, there was a linefeed bug in the expsens.c file in hbexplib.zip. it should be fixed now. please re-download from the expansion board software page and try again. let us know if this fixes the problem. thanks a lot. fred In your message you said: (...) (26 years ago, 26-Jan-99, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | HOW TO UNSUBSCRIBE
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| hmm, the last reminder "didn't take." to unsubscribe from the Handy Board list, send mail to fredm@media.mit.edu. Please, please, *please* DO NOT send mail to handyboard. one thousand tongue lashings will follow if you disobey these instructions. (...) (26 years ago, 8-Feb-99, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: MacFrugals
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| I was at Winchester TRU last night and they had about 30 to 40 poly bags strewn about the store. I think I saw 2 separate locations. All of the mentioned ones are .97. They had alot of 6406s, but I bought 5 of 'em. FYI Fred (...) (25 years ago, 27-Jul-99, to lugnet.loc.us.ca.sf)
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fred
(score: 1.028)
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| | Re: Downloading without AC adapter
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| (...) Yes. The interface will draw power from the HB's battery. Don't leave the HB plugged into the interface w/o the adapter for extended periods, because the interface will drain the HB's battery even if the HB is switched off. -Fred (28 years ago, 15-May-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: HELP! Handyboard ALMOST works.
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| In your message you said: (...) Sorry, testbrd.c and diag.c have nothing to do with the Handy Board. They are part of the older 6.270 board distribution. Get the hbtest.c program from the Handy Board software pages. -Fred (28 years ago, 31-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: (BrainDead) servos
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| Please see the Servo page, linked off of the Software Resources page: (URL) you load the drivers, and connect the servo to power, ground, and a control output. -Fred In your message you said: (...) (28 years ago, 15-Jan-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Vector2X compass accuracy?
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| Could anyone tell me what type type of accuracy/precision you get from the vector2x compass? Does it just return n,s,e,w,nw,ne,se,sw, or a byte? Is there a datasheet somewhere on the web? Thanks for the info! -=Fred Cass=- (27 years ago, 15-May-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: IC version 3.1
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| (...) Yes, the freeware MS-DOS/Windows tools have been known to have problems on some new/fast PCs. It all has to do with old serial drivers. Newton Labs stands behind the commercial product. I recommend that you try it. -Fred -- This message was (...) (27 years ago, 29-Aug-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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fred
(score: 1.028)
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| | Re: IC memory error
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| The freeware version of IC runs in a virtual DOS box. Check your configuration settings to make sure you give the maximal amount of conventional (640K) memory to the DOS box. Also, try using the .pif file that is distributed with IC. -Fred In your (...) (28 years ago, 9-Nov-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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fred
(score: 1.028)
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| | Re: AC adaptor
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| Please see the FAQ for the answer to the adapter question: (URL) the L1, that substitution may or may not work. try it; if your motors don't work right, it could be that. Fred In your message you said: (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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fred
(score: 1.028)
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| | Re: Polyswitch Fuse
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| Not a real systematic one -- that seemed to be enough to let motors blast away, but stop real damage from happening if the nicad pack got shorted out. remember, shorting nicads is a real hazard - 50 to 100 amps -- could almost start a car. -fred (...) (28 years ago, 6-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Pins Y0-Y5 addresses
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| Info on how to use these pins is explained in the Appendix B of the 6.270 manual. The HB and the 6.270 have the same memory/digital I-O circuitry. Look in the Tech Docs link off the main page. -Fred In your message you said: (...) (28 years ago, 15-Jan-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Servos and Handyboard.
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| you can't power 2 servos from the hb's own +5v supply. get a separate 5v supply (linear regulated, *noT* a switching supply, OR batteries) and run your servo power from that. connect this external supply ground to the HB motor ground (on J13). -Fred (...) (28 years ago, 2-Mar-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | DLM and Mini Board
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| Billy, (...) Make sure your defaults are right. Type "DLM" with no args to see the possibilities. You want -256 and -mb. In the future, please use the robot-board list, *not* the handyboard list, for Mini Board questions. See below for info. -Fred (...) (27 years ago, 28-Jul-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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