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 | | Congratulations (I think ????)
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| Hi Fred There was a short article on the news last night about a new Lego robotics product that looked alot like the "lego intelligent brick" concept you were working on last year... A bit of searching revealed the site (URL) which mentions the MIT (...) (27 years ago, 28-Jan-98, to lugnet.robotics.handyboard)
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fred
(score: 0.093)
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| | Re: Digital outputs.
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| Thanks David for a nice explanation of how to add I/O using shift registers. Let us not all forget that the HB does have two uncommitted digital output ASIDE from the four SPI pins: PA7 (a bidirectional pin which is marked as digital input #9) and (...) (27 years ago, 1-Jan-98, to lugnet.robotics.handyboard)
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fred
(score: 0.093)
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| | Sorry!
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| Hello everyone, From my mail yesterday: (...) This is a quick note of apology for referring to the Handyboard as "Randy Sargeant's Handyboard" (thus unintentionally downplaying Fred Martin's contribution.) It was particularly inappropriate in this (...) (27 years ago, 20-Jan-98, to lugnet.robotics.handyboard)
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fred
(score: 0.092)
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| | Re: This List is dead???
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| German, You were probably removed from the list after your email address generated bounces. Please write me privately if you wish to be added back. Fred In your message you said: (...) (27 years ago, 26-Dec-97, to lugnet.robotics.handyboard)
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fred
(score: 0.092)
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fred
(score: 0.092)
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| | Re: 8 bits A/D bus
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| I am building a somewhat similar circuit (a high-current h-bridge for the handy board), although I only need to read the data lines. However, the same approach will work for writing to the bus. My circuit lives on a board which plugs in between the (...) (27 years ago, 14-Jan-98, to lugnet.robotics.handyboard)
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fred
(score: 0.091)
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fred
(score: 0.091)
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| | Re: trouble with memory
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| well, the dim flashing of either yellow charge LEDs should not worry you. all this means is that the Handy Board is drawing some power. if you have the wall adapter plugged into the Interface/Charger board, simply switch it to "Zap" mode. now, onto (...) (27 years ago, 11-Dec-97, to lugnet.robotics.handyboard)
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fred
(score: 0.091)
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fred
(score: 0.090)
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| | new version of 6811 Downloader for Mac
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| Hi all, The 6811 Downloader program was starting to be flaky under System 8, so I fixed an odd serial bug. More like a work-around, actually. Anyway, if you use this program, and it is starting to flake out on you, download the new version. It's at (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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fred
(score: 0.090)
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fred
(score: 0.090)
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| | Smooth PWM Routines!
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| Julian Skidmore <skidmorj@cs.man.ac.uk> has implemented and released a new algorithm for performing the pulse width modulation on the Handy Board's motors, allowing up to 100 power steps rather than just eight! This is a big, big improvement over (...) (27 years ago, 3-Dec-97, to lugnet.robotics.handyboard)
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fred
(score: 0.090)
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| | Re: IC problem
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| Jeremy, You have to give us more information about what you've tried. Have you re-downloaded pcode_hb.s19 to your board? Do you get the boot beep and LCD message when you turn your board on? Have you changed your desktop computer configuration at (...) (27 years ago, 1-Dec-97, to lugnet.robotics.handyboard)
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fred
(score: 0.090)
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| | Re: Smoking serial/charger board...!!!
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| Hi. This evidence pretty conclusively points to a power-ground short on your board. Here is why: * you are fairly certain it is not the RJ11 cable (the most common cause of blown R11's). * when applying charge pwr directly to the HB's charge jack, (...) (27 years ago, 1-Dec-97, to lugnet.robotics.handyboard)
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fred
(score: 0.090)
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fred
(score: 0.089)
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| | HB sonar new drivers
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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: 0.089)
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| | Re: Polaroid 6500 stuff
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| Oh yeah, I meant to send an e-mail: "There are new drivers and a wiring diagram for using the Polaroid 6500 sonar ranging module with the Handy Board!! Just visit the HB home page: (URL) -Fred" That said, the answer to this question is simply, get (...) (27 years ago, 26-Nov-97, to lugnet.robotics.handyboard)
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fred
(score: 0.089)
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fred
(score: 0.089)
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fred
(score: 0.089)
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| | HandyBoard anb Logo ???
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| Hi It's the first time I join this list, I was wondering if somebody could give me some biography or link about logo and robots. If I'm "off subject" or if you know a list more involved in this subject please let me know. I plan to use a handy board (...) (27 years ago, 17-Dec-97, to lugnet.robotics.handyboard)
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fred
(score: 0.089)
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