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 | | Re: handy board troubles...
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| great, that's excellent! the key trick was pulling all the socketed chips. it's a weird but true fact that chips that don't have valid logic supplies can draw power in from their inputs pins (when the inputs are high) and operate off of that leeched (...) (25 years ago, 22-Mar-00, to lugnet.robotics.handyboard)
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fred
(score: 0.173)
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fred
(score: 0.173)
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| | Re: handy board troubles...
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| re: this problem with the memory contents not persisting, check the separate power supply to the RAM (U14). you might need to remove all socketed ICs from the board 'cause power can bleed to chips via input pins. also check that U12 the DS1233 is (...) (25 years ago, 21-Mar-00, to lugnet.robotics.handyboard)
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fred
(score: 0.173)
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| | Re: resistor pull-up help!
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| the exp bd inputs plug into the inputs on the main HB. so you still have to remove the pullup on the main HB. just cut the short trace on the underside of the board between the signal input pin and the pullup resistor. f. In your message you said: (...) (25 years ago, 21-Mar-00, to lugnet.robotics.handyboard)
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fred
(score: 0.173)
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fred
(score: 0.173)
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| | Re: Solar Powered Racing Spacecraft
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| (...) I really like it. Do you think you could render another file, but at a higher resolution, say, 1024x768 for example? That would really be appreciated, because I like to use pictures like that for my background. Thanks alot and great job! (...) (24 years ago, 15-Apr-00, to lugnet.cad.dat.models)
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fred
(score: 0.173)
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fred
(score: 0.172)
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| | Re: Overcharged battery?
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| hi dennis, well, it's just a plain C/10 charge circuit. but i was under the impression that nicad's aren't damaged by that. it's possible i'm wrong :-). any other battery experts out there? fred In your message you said: (...) ly (...) ut (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
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fred
(score: 0.172)
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| | Re: More Heat Testing
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| Over the past few years I have had a chance to play w/several types of ABS/plastics and various heating elements(1) to make race car body parts(2). Lego ABS melts at about 220 degres easily. A 15watt soldering iron can cut right thru them (...) (25 years ago, 3-Mar-00, to lugnet.storage)
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fred
(score: 0.172)
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| | Re: Overcharged battery?
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| actually this is to be expected. with no load, the diodes produce no drop. if you're worried, try hooking a DC motor (or other real load -- light bulb, 10 ohm resistor, etc). across the servo motor supply and then measure the voltage. you should see (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
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fred
(score: 0.172)
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fred
(score: 0.172)
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fred
(score: 0.172)
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| | Re: Overcharged battery?
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| no i disagree with this answer. the HB is designed to be left on normal charge indefinitely. the batts can get a little warm. if they are hot then something is wrong, but a little warm is nothing to worry about. when fully charged and with no load (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
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fred
(score: 0.172)
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| | Re: Another assembly question
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| the fact that the two LEDs come on and then go off suggests that you *are* successfully putting the hc11 into download mode. it also happens that the hc11 TxD pin is in what's called "wired OR mode" during bootstrap. this means that it can only (...) (25 years ago, 14-Mar-00, to lugnet.robotics.handyboard)
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fred
(score: 0.172)
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fred
(score: 0.172)
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| | Re: Villiager Mini-Figs?
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| (...) [snip] (...) ...and which is, oddly enough, the inspiration for the Vileplume poke'mon. (Its original Japanese name was 'Rafureshia', which is their version of our word.) (Followups to l.o-t.f.) (25 years ago, 14-Mar-00, to lugnet.castle, lugnet.off-topic.fun)
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fred
(score: 0.172)
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fred
(score: 0.172)
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| | Re: Anime News, and Final Fantasy: The Movie
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| (...) Heh. It's not so bad. First thing you do is you put away your weapons; a couple of punches, and he'll put his away too. Then it's stick and move. Run away from him, and find a range where when he tries to attack you he'll fall short, then run (...) (25 years ago, 13-Mar-00, to lugnet.off-topic.fun)
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fred
(score: 0.172)
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fred
(score: 0.172)
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fred
(score: 0.172)
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