 | | exponents, e^
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hello, i've searched through the discussions but i haven't been able to find any info on using floats with exponents in legOS, specifically the inverse of natural log: e^. actually, i can't find any info about integers with exponents either. i am (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: ForthPad v0.9
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As an aside, I think it might be a straightforward matter to make emacs communicate with the RCX (or intermediary) and then you've got a full blown editor to work with (ie, there are already forth highlighting modes). (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Strengthening Gears
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(...) Bruce ---...--- WWW.SYSTRONIX.COM Real embedded Java, fast 8051s, & more +1-801-534-1017 Salt Lake City, USA ---...--- (23 years ago, 6-Mar-02, to lugnet.robotics)
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| | ForthPad v0.9
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I've put together a stand-alone application which I am calling ForthPad. It is a Windows executable which should run on any version of Windows from 95 on up. It is a simple Forth editor that performs user-configurable syntax highlighting. Users of (...) (23 years ago, 5-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Vision Command $29.99 @KB Toys online
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I live in the UK and KB Toys will not ship internationally. This sucks as this is a massive saving. Would anyone out there consider buying me a VC and shipping it over if I send over a cheque to cover all costs? -- Lee Wilson ---...--- (...) (23 years ago, 6-Mar-02, to lugnet.robotics)
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| | Re: Strengthening Gears
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It appears a great way to test this would be to use a simple torque wrench. Use a metal axle, (to show stress at this connection). A metal axle will also not twist to give a false reading on the wrench. Fix a point at the gear teeth. Loading up the (...) (23 years ago, 5-Mar-02, to lugnet.robotics)
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| | Re: Strengthening Gears
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(...) Perhaps doping axles would be a good idea... --Mike (23 years ago, 5-Mar-02, to lugnet.robotics)
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| | RE: Palm and pbForth
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(...) Yes, this is very easy to do. I'd have to change the GUI I supply too, but that would not be too bad... (...) It's not pbForth that's the problem, it's the host-side software that I need to update to use the USB tower. (...) The RCX does not (...) (23 years ago, 5-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Palm and pbForth
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(...) If you changed pbForth to use 2400,o,8,1 instead of 2400,n,8,1 wouldn't that make it work with the USB tower? It seems to me like that is what the standard Lego firmware expects from either tower. That appears to be how it works under Windows, (...) (23 years ago, 5-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Strengthening Gears
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FUT: lugnet.technic (...) There's a lot of talk and little workshop here. I know nothing about gear streangth, I have never broken a gear - unitl today. Feeling the only way to settle this is to actually test it: 1) I took a z16 gear and boiled it (...) (23 years ago, 5-Mar-02, to lugnet.technic, lugnet.general, lugnet.robotics, lugnet.build.mecha) !
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| | RE: Palm and pbForth
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(...) Well, for starters, the RCX uses a different modulation scheme on the IR port, but these guys have a C solution... (URL) You'll need a Palm SDK and some patience. Is there any or some interest in getting this for the Palm? I'm having trouble (...) (23 years ago, 5-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Pneumatics: the old and the new
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(...) But this is exactly how Rob's window walker worked. I had the privilege of seeing it first person, and he would work the pump a bit (to take air out of the blue tanks), then start it going. Then after a while, he would work the pump more. This (...) (23 years ago, 5-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Palm and pbForth
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Hi all, i'm interested in using a Sony Clie N770 (Palm OS 4.1) to program my RCX (RIS 1.5). I ran across pbForth in the book "The Unofficial Guide to Lego Mindstorms" by Jonathan B. Knudsen. I downloaded pbForth.srec (version 11/11/2001 22:08) from (...) (23 years ago, 5-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Are these Robolab parts?
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(...) Hey, that's a nifty looking shaft encoder. Where did you dig up that thing from? Is it truly made by TLC? It looks like one of those handcrafted works by John Barnes. It's the basis for an angle or rotation sensor. You will need to use it with (...) (23 years ago, 5-Mar-02, to lugnet.robotics.edu)
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| | Re: Pneumatics: the old and the new
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(...) But, of course. As was carefully explained in my earlier post at (URL) is, you can store compressed air in a blue air tank (or as many of them as you have in your possession) and then release it for use later on. Then you charge it up again. (...) (23 years ago, 5-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Pneumatics: the old and the new
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c s soh wrote: > (...) Umm... you still need the recharge the pressure in the tank once in a while, dont you? (23 years ago, 5-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: A link of interrest
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(...) Toronto, Ontario, Canada isn't terribly far from you, I think, and there are regular robotics competitions put on by the rtlToronto club. That's the only one I know of. --Bill. (23 years ago, 5-Mar-02, to lugnet.robotics)
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| | Retry count exceeded
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HI: After programing a lot of robots with an RCX, I thought I'd sit down and try the scout. I use the first (rcx) SDK and the 'script' language to program. The documentation discusses the ability to program the scout. The editor has a drop down (...) (23 years ago, 5-Mar-02, to lugnet.robotics.scout)
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| | Strengthening Gears
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I recently received an email from someone about strengthening gears. This person claims that by boiling the gears and then cooling them with cold water, their strength will increase. Has anyone tried this? What were your results? TJ (23 years ago, 5-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Running Vision Command on XP
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Well, it would be nice if Lego would make this "update" available on-line. AFAIK, this update is only on the RIS 2.0 CD. Perhaps, you could order the RIS 2.0 updgrade from Lego. I suppose this update was to make VCS compatible with RIS 2.0 which (...) (23 years ago, 4-Mar-02, to lugnet.robotics.vc)
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| | Re: Report on BrickHeap Wars: Robot Challenge #1
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(...) Wow, that must have been a truly exciting event. Just reading the report made me feel I was there. Now, if only I were really there :-) (23 years ago, 4-Mar-02, to lugnet.robotics, lugnet.events.brickswest)
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| | RE: h8/300 16-bit multiply
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(...) <snipped code...> Are you sure that it works for signed numbers :-) (...) If you like, I can give you some notes on how my Forth was developed. I'm using a simple pseudo-assembler that lets me port this Forth to a new processor in less than a (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx)
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| | Re: Running Vision Command on XP
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(...) etc... Thanks for the instructions, I followed them all except the bit on VCS VERSION 1.1, so I was only partly successfull. LegoCam is working. Any other suggestions as to where one gets this ? Any idea what the update actually contains ? (...) (23 years ago, 4-Mar-02, to lugnet.robotics.vc)
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| | Re: h8/300 16-bit multiply
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Thanks. I have a version just 2 words longer that doesn't use the ROM code. Basically it's the ROM's code, trimmed down after assuming high words are zero initially. It's completely untested though, so there may be a bug. CODE UM* \ 16x16=32 (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx)
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| | JBug11 - new freeware Windows HC11 monitor/debugger
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Hey all, People looking for HC11 utilities should be real interested in this one. JBug11 by John Beatty is a Windows 32-bit monitor/debugger for 68HC11 MCU's. As John states on his site, "Its development was inspired by the difficulty of running (...) (23 years ago, 4-Mar-02, to lugnet.robotics.handyboard)
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| | Report on BrickHeap Wars: Robot Challenge #1
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Ever since my brother forced me to watch an episode of Junk Yard Wars last year, I've been wanting to do something similar as a robot competition. BricksWest was finally an opportunity to try. I modified the concept slightly, to allow using LEGO (...) (23 years ago, 4-Mar-02, to lugnet.robotics, lugnet.events.brickswest)
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| | RE: rotation sensors
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(...) Yes, you need to read the rotation sensor continuously. Be careful to not read it TOO quickly, especially if the sensor is turning slowly or you get the jumpy count problem. There is a fix for it and I might add it too the rotation sensor code (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | RE: problems with communications
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(...) Keep digging. Try using a PC first and get that working. (...) Yep. (...) Sounds like pbForth is picking up steam again. Good. It's emails like this that keep me motivated to keep development going. I'm just back from a vacation, so I'll do (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | RE: h8/300 16-bit multiply
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(...) The easiest thing is to cast your 16 bit values to 32 bits and use the built-in 32x32 multiply... Here's the code from pbForth that does it. (It's written in a pseudo- assebler, but you can probably figure it out...) #---...--- # UM* UM* ( u1 (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx)
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| | RE: Support for pbForth in BricxCC
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(...) John, This is great news! My own Tcl based GUI is a bit lacking, and a grand unified firmware uploader sounds like a great idea. I've been away on holidays and conferences most of the month, so I've missed most of this thread. Quick question, (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Tip for cutting electric plates
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To everyone, In case anyone has experienced as much trouble as I have attempting to sever the conductive strips in electric plates, I've posted the method I now use. (URL) a lot easier and a lot safer than severing with a knife and it doesn't mess (...) (23 years ago, 4-Mar-02, to lugnet.robotics)
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| | Re: Pneumatics: the old and the new
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(...) Exactly! (...) That's right! (...) Oh oh! Methinks you have not had the simple pleasure of playing with a hand pump (the new type of course) and an air tank like in the 8250 Submarine or 8462 Tow Truck or such like. Try it! (...) No need, just (...) (23 years ago, 4-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Support for pbForth in BricxCC
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(...) I wrote a hack to dump all the words, and here's the result for version 2.0.0. The word list has changed since 1999. I think the list is complete, but no guarantees. ?DUP 2SWAP 2OVER 2DROP 2DUP RSHIFT DLShift LSHIFT MOD / * */ SM/REM /MOD (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Support for pbForth in BricxCC
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(...) My plan is to simply have the editor syntax highlight the built-in words in various (configurable) ways. Comments, for instance, () and \ would be highlighter in a certain way. Numbers in another. Standard Forth words that are not simple (...) (23 years ago, 3-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Support for pbForth in BricxCC
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(...) I'm also playing with interfaces to pbforth at the moment. What you're doing and I'm not is syntax highlighting. I'm not actually sure how well that works in pbforth, since I'm not sure how the editor knows which words have been defined (...) (23 years ago, 3-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | rotation sensors
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Do I have to manually frequently read the values from rotation sensors for the count to work, or does the firmware monitor the sensor for me? I have home-brew passive sensors, touch sensors and light sensors working fine, but the rotation sensor is (...) (23 years ago, 3-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Support for pbForth in BricxCC
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I've started a project recently related to pbForth. And I'm interested in some community feedback. Last night I wrote a preliminary pbForth syntax highlighter for the editor component I use in BricxCC. And I modified BricxCC slightly so that you can (...) (23 years ago, 3-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Are these Robolab parts?
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Hope this is the correct newsgroup... The URL below is a picture in which some kind of sensor is displayed... The brick is 2*3 studs, and 1 1/3 brick high. The big hole in the side is big enough for a Technic axle to go through. The small hole seems (...) (23 years ago, 3-Mar-02, to lugnet.robotics.edu)
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| | Re: Pneumatics: the old and the new
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"c s soh" <cssoh@singnet.com.sg> wrote in message news:3C8076A2.E27D98....com.sg... (...) You most certainly can store vacuum. How would a TV set work, otherwise? When the tube is finally smashed or broken at the end of it's life, the vacuum (...) (23 years ago, 3-Mar-02, to lugnet.technic, lugnet.robotics)
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| | new EmuLegOS release 1.2.5.0
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I just posted a new release of EmuLegOS, if you're interested you can grab it from (URL) of the changes were just adding support for additional sensor types. Here is the changelog. 1.2.5.0 03/02/02 Mark Falco - added include for semaphore.h so user (...) (23 years ago, 2-Mar-02, to lugnet.robotics.rcx.legos)
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