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 | | Re: 8 bits A/D bus
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| Please read Appendix B of the 6.270 Robot Builders Guide. This explains how to interface latches with the Handy Board. See (URL) Hello, (...) s (...) k (...) e (...) (27 years ago, 14-Jan-98, to lugnet.robotics.handyboard)
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fred
(score: 0.934)
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| | Re: questions re: unix version of IC
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| Joshua - There should be no problems using the Gleason Research libraries (or any of the libraries that are on the web site). There are no differences between version 2.851 and 2.860 from the point of view of the libraries. There is a pre-compiled (...) (27 years ago, 13-Jan-98, to lugnet.robotics.handyboard)
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fred
(score: 0.934)
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| | Re: Dallas NVRAM.
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| German -- The Dallas NV RAM should work fine. Just so you know -- for future reference -- Interactive C will not work resident in a ROM. Interactive C must operate out of RAM. Fred In your message you said: (...) (27 years ago, 19-Jan-98, to lugnet.robotics.handyboard)
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fred
(score: 0.934)
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| | I have a good schematic to post
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| I have finally debugged my IR proximity sensor circuit and I want to post it to the group. My question is what is the best way to post it? I can put it into a JPG file but I don't want to just send it to the whole group at once. Fred, can this go on (...) (27 years ago, 22-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.934)
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| | Re: Handyboard to Vector 2X compass
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| C> I'm planning to hook a Vector 2X digital compass to my HandBoard. C> I'm looking for any code for such and interface. It should be C> simple SPI stuff but I've never messed with the SPI before and C> would rather not re-invent the wheel. I've (...) (27 years ago, 22-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.933)
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| | Re:
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| I too was there during the contest though I was not one of the participants. I would like to add that the fire-fighting contest was the very first robot event I have been to. Now I plan to go to some of the other ones this year. Now I know why quite (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.933)
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| | HB web site design changes
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| Hi all, Those of you running Internet Explorer on Windows 95 or NT have probably noticed that the table of links running down the left column is hard to read -- light blue (or purple) links on a medium blue background. Those links are supposed to be (...) (27 years ago, 19-Jan-98, to lugnet.robotics.handyboard)
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fred
(score: 0.933)
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| | LCD & serial connection
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| Thanks to those of you who sent your suggestions regarding the message below. I tried it all (replacing the LCD, checking each pin on both the RAM and the octal transparent latch 74HC373 for continuity, double checking the installed parts, I even (...) (27 years ago, 24-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.933)
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fred
(score: 0.933)
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| | Trinity Robot Contest.
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| Nice pictures. Thanks for sharing them, Fred. Next time maybe someone can put up some mpegs. :) I noticed some things that sparked my curiosity. First, what are those red boxes that quite a few contestants were using...for what appeared to be (...) (27 years ago, 14-May-97, to lugnet.robotics.handyboard)
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fred
(score: 0.933)
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| | Re: Motor Driver Chips
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| The current still goes through the chip. 1 amp max. But now it will get more hot cuz you disipate more power accross the integrated transistors with the higher voltage. I think Fred mentioned that there was a thermal shutdown. (Is this true?) But I (...) (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.933)
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| | HOW TO UNSUBSCRIBE
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| 1. Please *DO NOT* send unsubscribe messages to the handy board mailing list. 2. Instead, send unsubscribe messages to Fred Martin, fredm@media.mit.edu. 3. The only person who can unsubscribe you is Fred Martin, fredm@media.mit.edu. 4. Thank you. (...) (27 years ago, 23-Feb-98, to lugnet.robotics.handyboard)
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fred
(score: 0.933)
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fred
(score: 0.933)
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fred
(score: 0.932)
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| | Re: Congratulations (I think ????)
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| Hi Scott (& everyone), Yes, two days ago the LEGO company officially launched "LEGO Mindstorms," which is a new brand and product line inspired by the MIT Programmable Brick research. Scott -- thanks for noticing, and digging up the URL (URL). I am (...) (27 years ago, 29-Jan-98, to lugnet.robotics.handyboard)
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fred
(score: 0.932)
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fred
(score: 0.932)
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fred
(score: 0.932)
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| | Re: Reading floating point numbers
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| Baggerman, Clinton D. spake unto the ether: (...) Clint, I already have the converse of this problem (i.e., printing floats (and ints) to a remote console via serial_putchar()) solved. I'm currently working with Fred Martin to make these routines (...) (27 years ago, 15-May-97, to lugnet.robotics.handyboard)
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fred
(score: 0.932)
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fred
(score: 0.932)
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| | Re: Sonar
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| (...) Each diode loses 0.6v. The string of them drops the HB battery down from 9.6v to 6.0v, which is the specified operating voltage of the sonar unit. You can probably substitute 1N4001s. Fred (27 years ago, 6-Feb-98, to lugnet.robotics.handyboard)
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fred
(score: 0.932)
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