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| i am guessing that some of the inputs to u6 are defective, causing it to assert its outputs when it shouldn't. this could turn on the '244 input latch, driving the bus when it should not. please check that pins 1 through 6 signals are oscillating (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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fred
(score: 0.131)
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fred
(score: 0.131)
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| | Re: ROVER
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| are you using 74HC04, and not plain 7404? you must use all HC type chips in the Handy Board. fred In your message you said: (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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fred
(score: 0.131)
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| | RE: OFF TOPIC!!!
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| See lugnet.admin.build for a response. I did and it's there. Todd has warned you about posting off topic subject matter in here already. Please head his warning!!! (26 years ago, 12-Jan-99, to lugnet.robotics)
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fred
(score: 0.131)
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| | Re: To quote a scholar
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| I agree that TLG is spreading itself too thin. The CD games are marginable from what I've read about problems installing and playing them. Z-Nap is a flailing attempt to debunk Kinex (something they have always wanted to do). TLG should just stick (...) (26 years ago, 12-Jan-99, to lugnet.general)
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fred
(score: 0.131)
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fred
(score: 0.131)
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| | Re: Expansion Board Files
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| argh! i'm sorry for this being so painful. doug (and anyone else who downloaded before 11:27 am today), please redownload and let me know if it's finally fixed. thank you, fred In your message you said: (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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fred
(score: 0.131)
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| | Re: what variety of 6811 can be used?
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| (...) why does the 512 bytes matter? the HB has 32K of external ram. i guess if you're planning to do rom-able code development then i understand. there's very little difference between the e and a series. the port A counter/timer pins are slightly (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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fred
(score: 0.131)
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| | Re: Handyboard and iMac
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| way back randy did have it running on NeXT, before NeXTSTEP. the unix sources are pretty clean; probably the only tricky part would be the serial line access. fred In your message you said: (...) B/Serial adapter? (...) s, so I was unable to find or (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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fred
(score: 0.131)
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| | Re: Carrying rec.toys.lego on lugnet.com
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| AOL is free to me for now, no real need to change till I actualy have to pay for it. Thenewsguy I have tried but it disapeared from Outlook after the 1st reading of posts. I'll keep looking tho, hopefuly I can find a fairly decient one w/o having to (...) (26 years ago, 11-Jan-99, to lugnet.admin.general)
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fred
(score: 0.131)
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| | Re: Will the SN754410 support...
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| if the worst-case current is 1.5A, you're probably OK -- the SN754410's have thermal protection for over-current conditions. they're rated for an amp continuous, so you're not too far out of bounds. one cause for concern is if the 1.5A measure is (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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fred
(score: 0.131)
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| | Re: sensor input mux calculations
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| I've been looking at the multiple sensor input problem... wouldn't it be simpler to use a series resistor network, rather than parallel, something like this: --|--[ 10 ohm ]--|--[ 20 ohm ]--|--[ 40 ohm ]--|--[ 80 ohm ]--|-- | | | | | (...) (26 years ago, 29-Dec-98, to lugnet.robotics)
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fred
(score: 0.131)
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| | Re: Carrying rec.toys.lego on lugnet.com
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| Dejanews doesn't work w/Outlook Express. Despite some peoples poor expreiences w/this software, I have had nothing but good come out of it. I had a news server that carried RTL but it went belly up after just after x-mass, don't know why but can't (...) (26 years ago, 11-Jan-99, to lugnet.admin.general)
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fred
(score: 0.131)
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fred
(score: 0.131)
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| | Re: HB failure
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| the buzzing indicates that the LCD isn't connected right (or is dead, as you are guessing). first, please be sure that all 14 pins of the LCD are inserted properly into the LCD connector. then (if still probs), try downloading Kent Farnsworth's (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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fred
(score: 0.131)
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| | Re: Carrying rec.toys.lego on lugnet.com
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| Well since getting RTL here sometime in the near future looks practicaly impossible... Is there a news server that does carry it. I dislike using the AOL browser for anything, for me AOL is just a internet connection. Outlook Express does a (...) (26 years ago, 10-Jan-99, to lugnet.admin.general)
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fred
(score: 0.131)
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| | Mindstorms in the news again...
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| This is from Friday's news... "Toys of Tomorrow" (URL) a lengthy url but worth reading the page. The page that precedes this in the article is about those lame Barney thingys as being intelligent for children. IMHO Mindstorms is a far better (...) (26 years ago, 9-Jan-99, to lugnet.robotics)
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fred
(score: 0.131)
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| | Serial routines for PA7 at 2400 Baud
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| Hi, I read somewhere taht if i want to use pa7 with 2400 baud that i'll have to modify the LDAB 37 to LDAB 148. Is this the only change ?? If i try to use this, and i send 0b11111111 on the HB, I get 0b11000000 on the Host (if i try 0b00000000 i get (...) (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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fred
(score: 0.130)
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| | Re: News servers for RTL
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| Well.... Is AOL a real ISP? It's slow and I do prefer to use OutLook Express. Much faster and a better interface for seeing it the way I like it. (26 years ago, 9-Jan-99, to lugnet.off-topic.fun)
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fred
(score: 0.130)
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| | Polaroid 6500 Sonar Problem
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| I'm having difficulty getting my sonar rangefinder to work properly. I've got a fully operational Handy Board with a fully operational Expansion Board plugged into it (both purchased assembled from Gleason and used extensively already without (...) (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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fred
(score: 0.130)
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