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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: 0.036)
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| | Re: Expansion interface status
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| (...) To Fred and others, I've been thinking about this off and on for over a year now, and since I now have parts I'll finally get my HBs into something more than just board status. Robots eat I/O pins for lunch. Sensors eat input pins and (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
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fred
(score: 0.035)
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| | Re: Expansion interface status
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| Another thought, how about a series of expander boards. I know this could get really ugly, but, maybe Fred, and the normal HB distributors build what they see are appropriate for their customers, and others build what is appropriate for their (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
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fred
(score: 0.035)
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| | PC serial connection
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| Hi. I just got my hands on a new HB and I'm using a 100 MHZ DX PC. Hardware-wise, there's a perfect slot for the serial connection on my computer, which is not occupied. I hookes the serial connection to it and tried to download IC using COM port 4 (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
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fred
(score: 0.035)
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| | Re: ni-cads in parallel
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| Don't do this. First off, you won't get more current, nicads already can deliver gobs of current, enough to be dangerous. You want more amp-hours, not more instantaneous amperage. Secondly you will have problems with cells charging each other. I (...) (28 years ago, 6-May-96, to lugnet.robotics.handyboard)
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fred
(score: 0.035)
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| | Re: voltage regulator current rating
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| (...) The rated total is 1 amp. The HB itself draws 100 to 200 mA? I'm not sure, I haven't measured it exactly. Since the HB's battery is 9.6v, and the output voltage of the regulator is 5v, the thing drops 4.6v, and at 600 to 700 mA of current that (...) (28 years ago, 6-May-96, to lugnet.robotics.handyboard)
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fred
(score: 0.035)
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| | Re: sony-ir.icb problem
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| (...) First, check the FAQ before posting! One solution to problems with ICB files are already answered in: (URL) is a copy of the answer for your convenience. If this does not solve your problem please follow up. -Fred I'M USING MS-DOS AND IC WON'T (...) (28 years ago, 2-May-96, to lugnet.robotics.handyboard)
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fred
(score: 0.034)
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| | Re: Assembler
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| Hello all, I'm working with a friend of mine in the Robotics lab at the UofM to try to interface a Miniboard with a Handyboard through the SPI bus. We're having a fair amount of troubles trying to do it through interactive C. I figure we'll have to (...) (28 years ago, 4-May-96, to lugnet.robotics.handyboard)
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fred
(score: 0.034)
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| | updating the FAQ
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| Hi Fred, In the ICB faq, could you change: Please note one big GOTCHA with ICB files. On the MS-DOS platform, the ICB files must have Unix-style line termination. OK, what does that mean. to something like: Please note one big GOTCHA with ICB files. (...) (28 years ago, 2-May-96, to lugnet.robotics.handyboard)
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fred
(score: 0.034)
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| | Re: Using low voltage motors
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| In your message you said: (...) What do you mean, "from the 20V range"? the HB supplies about 8 to 9v to its motor outs. a 30 ohm resistor would be about right for the 200mA current level. The resistor would drop 6v leaving about 2 for the motors. (...) (28 years ago, 23-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.034)
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| | Re: HB pins ?
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| (...) Each sensor "connector" is a column of pins in the following format, where "X" denotes a pin position: X X X So, if you look at the lower edge of the HB, you have 16 positions in a bank of 9 and 7: XXX...XXX XXXXXXX XXX...XXX XXXXXXX XXX...XXX (...) (28 years ago, 22-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.034)
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| | problem with PCI PowerMacs?
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| Has anyone tried the IC software (freeware or newtonlabs beta) with a PCI PowerMac? I'm in touch with someone who is having trouble, and I wonder if we can confirm a problem. Thanks, Fred (28 years ago, 17-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.033)
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fred
(score: 0.033)
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| | new stuff on HB web site
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| Greetings HB users, I thought people might want to know about new stuff on the HB web site -- * printed hardcopy docs of the HB assembly pages. much nicer than printing out the web pages. available as a PS file (level II only) or a PDF file. * web (...) (28 years ago, 17-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.033)
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| | Re: TCNT address
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| (...) It is a 6811 internal register, at addresses $100e (high byte) to $100f (low byte). You should get the Motorola 6811 docs if you are going to be working with this register. Motorola Semiconductor Inc. Motorola Literature Distribution o P.O. (...) (28 years ago, 16-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.033)
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| | Re: Assembler
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| (...) 1. please read the IC manual, which is now localized for the Handy Board. this explains how the ICB system works in detail. look on the HB home page to find the IC manual. 2. yes, you need as11_ic. mac and unix versions are readily available. (...) (28 years ago, 15-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.033)
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| | Re: Assembler
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| (...) I'm pretty sure that files assembled this way will work with the freeware IC as well. Please note one big GOTCHA with ICB files. On the MS-DOS platform, the ICB files must have Unix-style line termination. OK, what does that mean. In a text (...) (28 years ago, 15-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.033)
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fred
(score: 0.033)
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| | Re: h-bridges, current info
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| (...) the fuse is rated for about 2.5A continuous. If that is not enough, get one rated for more current, or replace it with a wire and make sure not to short out the nicads, or you'll get 30 to 40 A flowing. -F (28 years ago, 13-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.033)
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| | Re: Servo
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| you have to load both servo.c and servo.icb. -Fred -- This message was composed using Articulate Systems' PowerSecretary, a Macintosh-based speech-to-text dictation system. Please forgive any sloppiness in the formatting. Thanks. -Fred In your (...) (28 years ago, 12-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.033)
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