 | | IR remote using PIC16F84
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Hi I am new at the list with my first question. For background information. I have not yet done much with RCX so I may ask stupid questions. I am developing IR remote controller for RCX using cheap PIC16F84 processor. I have already written physical (...) (26 years ago, 22-Oct-99, to lugnet.robotics)
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| | is their a searchable archive
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Is their a searchable archive of the LEGO Robotics Mailing List? Don Myers (26 years ago, 22-Oct-99, to lugnet.robotics)
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| | Re: Need Balls!
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Magical supply stores. common item in slight of hand, all colors and sizes. Worth a try (...) (26 years ago, 22-Oct-99, to lugnet.robotics)
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| | Re: Photos Resized, Recompressed and Thumbnailed!
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(...) Thanks very much. There will be many more posts about the weekend soon. (...) Well this was not quite as hard as it may seem. As for scenery and models it was fairly easy to distinguish what each of us made. The only thing that really worried (...) (26 years ago, 25-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics)
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| | NELUG at Mindfest, A quick summary and more photo's.
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First let me say that Mindfest was a booming success and we all had alot of fun. We learned alot about presenting in public, both good and bad. We had substantial interest in our table and everything went very well all things considered. This is (...) (26 years ago, 25-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics, lugnet.robotics.events, lugnet.org.us, lugnet.loc.us.ma.bos, lugnet.loc.us.ct, lugnet.loc.us.vt, lugnet.loc.us.nh, lugnet.loc.us.me, lugnet.trains)
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| | Re: Mindfest Photos!
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(...) Oh no! Seriously though, that's great. It'll probably take me a little while to get around to anyway. (And we all know what happens to projects that start with that sentence....) (...) Magic -- I put all of the groups I think it belongs in on (...) (26 years ago, 25-Oct-99, to lugnet.robotics.events)
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| | Re: Controlling two robots simultaneously
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(...) Make signals 0-127 be for RCX A, and 128-255 be for RCX B. (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | How do I connect 100 photocells to my handyboard?
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Hi, For a project I'm working on, I need to track the output of one hundred (100) photocells. I don't need great accuracy on any of them, but maybe a ten-step resolution at the most. Is there a relatively standard or well-known method to gather (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: HC11 pink book
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Adam, Here are three books for your MCU: M68HC11RM/AD is the M68HC11 Reference Manual M68HC11A8/D is the M68HC11A8 Technical Data book M68HC11A8RG/AD is the M68HC11A8 Programming Reference Guide They are available at: (URL) this helps, - Nick - (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: NELUG at Mindfest, A quick summary and more photo's.
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Eric Kingsley <kingsley@nelug.nospam.org> wrote in message news:FK5sLo.Mu8@lugnet.com... (...) feel (...) I was there too. Michael Gasperi It was a great time that went by in a flash. The sensor building workshops I held were packed with over 30 (...) (26 years ago, 25-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics, lugnet.robotics.events, lugnet.org.us, lugnet.loc.us.ma.bos, lugnet.loc.us.ct, lugnet.loc.us.vt, lugnet.loc.us.nh, lugnet.loc.us.me, lugnet.trains)
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| | IntelliMouse Ripe for Hacking
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Hey, Just wondered if anyone had seen Microsoft's newest IntelliMouse and, if so, if they had the same thought I did about it: this thing cries out to be hacked. It uses a 'tiny CMOS digital camera' to see whatever surface is beneath it and measure (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | Re: IntelliMouse Ripe for Hacking
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(...) Huh, interesting. That would be cool. I'm realllly skeptical though -- I've seen older optical mice, and it's not just the required special mouse pad that is annoying -- they just plain don't work very well. And according to the CNN article, (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | Re: is their a searchable archive
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(...) Check out <URL:(URL) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | Re: IntelliMouse Ripe for Hacking
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Sounds like we just need to rig up a ps/2 mouseport for RCX KL (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | Re: IntelliMouse Ripe for Hacking
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I have an itellimouse explorer and I'm impressed enough to recomend it. I havent been able to get teh pointer to "freak-out" yet. b ---...--- (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | LegOS 0.2.0a multi-threading problem
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I have been attempting to us the thread API for a LegOS project. I have been following the examples I found on the LegOS How-To page with out much success. If I run some simple code inside the main function it works fine but if I try the same code (...) (26 years ago, 25-Oct-99, to lugnet.robotics.rcx.legos)
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| | Re: IntelliMouse Ripe for Hacking
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(...) so, (...) I've (...) A year ago I bought a mouse on sale (Gyropoint, if I remember correctly) which tracks your actual motion at any speed in the open air; no surface needed (I use it with a laptop for presentations). It has never had any (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | Re: Analog port shaft encoder
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Rob, I use these same encoders just as you do, and they work fine. However, the spacing of the encoders from thier targets is important for proper function. 1.5 to 2 mm works well for me. In addition, I have had to play with the encoder high (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | What can I do with a robot?
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A question for all of you fantastic robotics enthusiasts out there: I have to do a final year project next year, and I'm getting a head start on designing it. I've been told that I can do pretty much what I like with a robot, as long as it has a lot (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: What can I do with a robot?
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Adam, As far as interfacing to external devices, the inexpensive ones are wheel encoders, IR ranging, bumpers, sound sensors and visible light sensors. You can get much more involved by adding compasses, GPS, video vision and so on, but the cost (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IntelliMouse Ripe for Hacking
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I've just got the IntelliMouse Explorer. I had problems at first on my Simpson's mouse mat, but then I tried it straight onto the desk top. It's very good and I have no problems with it at speed. I bought it to play Quake X with, but I haven't had (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | It works! iMac and RIS
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I've seen a lot of "it *should* work" or "it *might* work" type of postings, but nothing specific indicating that you really can use the Lego Mindstorms RIS on an iMac using Virtual PC. I got it to work, and I thought I ought to post the (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | Re: NELUG at Mindfest, A quick summary and more photo's.
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(...) [amazing list snipped] (...) Not a scold, but three very important people to note: Kekoa Proudfoot Dave Baum Markus Noga (according to Wired News article at (URL)) I wish I had been there, just to see these three on the Extreme Mindstorms (...) (26 years ago, 25-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics, lugnet.robotics.events, lugnet.org.us, lugnet.loc.us.ma.bos, lugnet.loc.us.ct, lugnet.loc.us.vt, lugnet.loc.us.nh, lugnet.loc.us.me, lugnet.trains)
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| | Compiler Errors keep my board from loading
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Help!! I don't know how to fix compiler errors! Specifically, I received the following error: "Compiler error! 47 extra bytes left on board stack. " and I don't know how to fix it. I do know that I cannot load programs on my board until I fix the (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | MOTOR DRIVERS
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Question? When using a motor which will exceed the driver chip max current, will that fry the chip or the handy board? Paul (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Homebrew Sensor Workshop Slides
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I converted the 42 Powerpoint slides to HTML and they are now on my page. There is a some loss in this conversion, but I'm just about at the limit of my web page memory and I can't afford to give the images more resolution. Most of the material is (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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Not bad for an international connection. I'd rate it as "tolerable." I've scanned 3 pages, but the images are crooked on two. I'm going to cut the binding on my Constructopedia, and re-do the scans, then 3-hole punch them (I've got a binder full of (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | Re: MOTOR DRIVERS
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Answer it'll fry the chip Question? Why would you even want to do that? (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: NELUG at Mindfest, A quick summary and more photo's.
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(...) Yes -- I sat at the table with them at lunch once, and can verify that they appear to be mortal humans, despite evidence we've all seen to the contrary. :) (26 years ago, 25-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics, lugnet.robotics.events, lugnet.org.us, lugnet.loc.us.ma.bos, lugnet.loc.us.ct, lugnet.loc.us.vt, lugnet.loc.us.nh, lugnet.loc.us.me, lugnet.trains)
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| | Re: MOTOR DRIVERS
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(...) Hi Paul, I think it would take out the chip, but I am currently doing this by installing a oversize heatsink & fan to the controller chip and pulsing the motor instead of constant current. Exceeding the max current capacity but, limiting (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: NELUG at Mindfest, A quick summary and more photo's.
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(...) (There were in fact _lots_ of important people who didn't make Eric's list. I don't think he was trying to be comprehensive and certainly didn't mean to leave anybody out. There were a lot of people there, and I doubt anyone had time to meet (...) (26 years ago, 25-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics, lugnet.robotics.events, lugnet.org.us, lugnet.loc.us.ma.bos, lugnet.loc.us.ct, lugnet.loc.us.vt, lugnet.loc.us.nh, lugnet.loc.us.me, lugnet.trains)
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| | RE: NELUG at Mindfest, A quick summary and more photo's.
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(...) Except me, I seem to be the invisible panelist in the Wired article. Hrmph. Cheers, Ralph Hempel - P.Eng ---...--- Check out pbFORTH for LEGO Mindstorms at: (URL) ---...--- Reply to: rhempel at bmts dot com ---...--- (26 years ago, 25-Oct-99, to lugnet.general, lugnet.robotics, lugnet.robotics.events)
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| | Sample Chapter of Lego Mindstorms book online now
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Hi all, O'Reilly has just released a new book on Lego Mindstorms Robots, that provides tons of excellent tips and ideas on how to take your Lego Robots further. Check out the first two chapters in the serialization of "The Unofficial Guide to Lego (...) (26 years ago, 25-Oct-99, to lugnet.robotics)
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| | Sample chapter of Jonathan's book online now
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Hi all, O'Reilly has just released a new book on Lego Mindstorms Robots, that provides tons of excellent tips and ideas on how to take your Lego Robots further. Check out the first two chapters in the serialization of "The Unofficial Guide to Lego (...) (26 years ago, 25-Oct-99, to lugnet.robotics.events)
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| | Re: NELUG at Mindfest, A quick summary and more photo's.
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(...) Yeah that's what you get for picking a weird old-fashioned obscure computer language. *grin* (26 years ago, 25-Oct-99, to lugnet.general, lugnet.robotics, lugnet.robotics.events)
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| | Re: MOTOR DRIVERS
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It won't necessarily fry the chip. L293s (and the TI equivalent) have a thermal protection mode. If the chip gets too hot, it will turn itself off. Most of the time, this protects the chip against over-current. However, it is still possible to fry (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: NELUG at Mindfest, A quick summary and more photo's.
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Ralph Hempel <rhempel@bmts.com> wrote in message news:000101bf1f27$4d...@pro150... (...) Hrmph. Ralph, how do you think I feel. I was left out too and it was implied the panel was all software. At least Wired has a quote from the audience member in (...) (26 years ago, 25-Oct-99, to lugnet.general, lugnet.robotics, lugnet.robotics.events)
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| | Re: MOTOR DRIVERS
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(...) Hi Paul, I don't know how the handyboard is protected against overload but one thing is for sure : if you overload the driver chip ... this one will fry up.In worst case you'll fry the board as well. If a driver chip's maximum current is 1 (...) (26 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: NELUG at Mindfest, A quick summary and more photo's.
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(...) Yes, well, you're a brick-mangling heretic, so.... :) (26 years ago, 25-Oct-99, to lugnet.general, lugnet.robotics, lugnet.robotics.events)
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| | Re: NELUG at Mindfest, A quick summary and more photo's.
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(...) I'd like to mention several other people (not on Eric's list) that I was very pleased to meet/meet again at MindFest: Dave Baum Ben Erwin Bob Frankston Michael Gaspieri Ralph Hempel Fred Martin Markus Noga Kekoa Proudfoot Mitchel Resnick I'm (...) (26 years ago, 25-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics, lugnet.robotics.events, lugnet.org.us, lugnet.loc.us.ma.bos, lugnet.loc.us.ct, lugnet.loc.us.vt, lugnet.loc.us.nh, lugnet.loc.us.me, lugnet.trains)
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