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fred
(score: 0.046)
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 | | Re: Trinity College robot contest
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| Fred & others, FYI, there were 5 teams of LEGO robots (using 6270 and HB) in the "grown-up" category from Penn State Abington-Ogontz (Abington, PA). These were freshmen and sophomore engr undergrads taking a robot design course. (One team placed (...) (28 years ago, 8-Sep-96, to lugnet.robotics.handyboard)
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fred
(score: 0.046)
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| | Re: Charge polarity on each board opposite?
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| (...) Fred, I use dl on a DOS 286, which does the CONFIG register automatically I thought. In any case, I tried using dl -eeprom config0c.s19, with the same results. The dl of pcode_hb.lis runs nominally, but the LCD remains all black across the top (...) (28 years ago, 5-Sep-96, to lugnet.robotics.handyboard)
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fred
(score: 0.045)
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| | HOW TO UNSUBSCRIBE
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| Greetings all, This is the sporadic reminder to please DIRECT LIST ADMINISTRATIVIA TO ME PERSONALLY, not to the 150+ people on the list. There is no auto-listserv program reading the mail. That's right, any requests to unsubscribe, add, or change (...) (28 years ago, 21-Aug-96, to lugnet.robotics.handyboard)
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fred
(score: 0.045)
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fred
(score: 0.045)
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| | Re: -POWER GLITCH- message
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| One possibility: make sure you have loaded pcode_hb.s19 onto the board, and *not* pcoder22.s19. when you say "even if I don't move the HB at all after runing for a few seconds the HB usually crashes" do you mean, it crashes with the "-POWER GLITCH-" (...) (28 years ago, 16-Aug-96, to lugnet.robotics.handyboard)
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fred
(score: 0.044)
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| | Re: Charging the battery
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| Make sure your adapter is 12v, 500 mA. If you have a voltmeter, measure the open-circuit voltage (when it's plugged into the wall, but not operating anything); you should get around 17 v. -F (...) (28 years ago, 7-Aug-96, to lugnet.robotics.handyboard)
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fred
(score: 0.044)
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| | Re: Memory/Sampling Rate
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| (...) not easily. half of the lower 32k of the 6811 address space is consumed by the '138 circuit to generate 4 digital input and 4 digital output areas. it would be possible to have some kind of data memory area making use of the signals on the exp (...) (28 years ago, 31-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.043)
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| | Re: IR transmission
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| (...) Well actually, even though it's not a precision resistor, when I installed it, I grabbed a bunch of resistors and measured each one with my DMM until I found one which was between the 3.74 and 3.83 values Fred specified. To further test this, (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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fred
(score: 0.043)
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fred
(score: 0.042)
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| | web site update
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| Hi all, I've made some cosmetic changes to the HB web site. If anyone has any feedback, positive or negative, i'd like to hear it. Thanks, Fred (28 years ago, 19-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.042)
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fred
(score: 0.042)
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| | encoders
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| (...) if your counting program is written in IC, and not assembly lang, it might be too slow and occasionally miss counts. -F (28 years ago, 17-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.042)
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fred
(score: 0.041)
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| | Re: Malloc
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| 8K might be all that IC allows for user global data. The memory map can be rearranged, but only at the compile-time of the IC application. Newton Labs should be able to give you a definitive answer about the memory organization of IC 3.1. -Fred In (...) (28 years ago, 12-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.041)
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| | Serial interface
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| Hi Fred: Thank you for returning my call. The problem I am having is with the serial interface. The green light is not coming on when it is connected to the computer. I tried to jiggle it to see if there was a loose connection, and I found that (...) (28 years ago, 22-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.041)
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| | Handyboard interface
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| Hi Fred: Thank you for returning my call. The problem I am having is with the serial interface. The green light is not coming on when it is connected to the computer. I tried to jiggle it to see if there was a loose connection, and I found that (...) (28 years ago, 22-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.041)
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| | handyboard interface
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| Hi Fred: Thank you for returning my call. The problem I am having is with the serial interface. The green light is not coming on when it is connected to the computer. I tried to jiggle it to see if there was a loose connection, and I found that (...) (28 years ago, 22-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.041)
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| | Handyboard serial interface
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| Hi Fred: Thank you for returning my call. The problem I am having is with the serial interface. The green light is not coming on when it is connected to the computer. I tried to jiggle it to see if there was a loose connection, and I found that (...) (28 years ago, 22-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.041)
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| | Re: Newbie Questions (Sensors)
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| (...) using the LEGO light and angle sensor is non-trival; custom HW and SW drivers are required. See ftp://cher.media.mit...gosens.txt for details. (...) 0-12 inches is hard, but 0-1 or 2 inches can be done with a simple IR reflectance sensor. See (...) (28 years ago, 11-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.041)
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