 | | BricxCC release 3.3.4.2
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I've just released a new version of BricxCC. This release add support for downloading non-standard firmwares (such as pbForth). I've also added support for several languages other than NQC with user customizable syntax highlighting. These languages (...) (23 years ago, 7-Mar-02, to lugnet.robotics.rcx)
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| | Re: binutils?
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(...) It has several useful things in it, but the one most important for legOS is probably the linker, ld. ROSCO (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | binutils?
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when i first got legOS up and running i used rcx-egcs-1.1.2-1.i386 rcx-egcs-c++-1.1.2-1.i386 rcx-binutils-2.9.5.0.22-1.i386 i'm assuming the first two are the c and c++ compilers, however what is the function of the binutils? thanks (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | backing up programs
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Hi, I have a couple of RCX's and was wondering if anyone has done any work on a way to transfer a program from one rcx to another in the case of a battery failure, etc. instead of replacing the rcx in the robot with the other one. thanks (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: exponents, e^
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i tried the lejos environment and found the exponent and trig functions worked very well. and they work with doubles. so if anyone is having trouble with using trig, log, exp functions in legOS, you might want to try lejos. plus it was easier to (...) (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | Problems RCX - Computer communication
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Hi, i'm trying to write a program that makes a Legoroboter able to navigate in different rooms / labyrints. For this the computer needs to know, when one of the touch-sensors is pressed. I use poll(9,x) for this. My problem is that the returned (...) (23 years ago, 7-Mar-02, to lugnet.robotics)
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| | Re: Single acting pneumatics with spring return
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(...) How coincidental, but it too struck me that we needed to backtrack as the thread was getting pretty muddled up. It seemed to me that we may not be working on the same assumptions. So here's the re-play... The post that you quoted (URL) in (...) (23 years ago, 7-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Firmware RIS2.0 Linux
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(...) That depends. If the .exe file is actually a self-extracting ZIP file, then "unzip" should be able to handle it, even on Linux. --Bill. (23 years ago, 7-Mar-02, to lugnet.robotics)
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| | Re: exponents, e^
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(...) Only one I can think of off-hand is support for the remote control, I've been thinking about looking at that if I can get some time (though it's still only a patch in legOS, have to do something about that, too). There may be others I don't (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | Single acting pneumatics with spring return
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Hello again, I think I should have another go at this... I wanted to say "Check this out, I found an interesting application for the old pneumatic cylinders" What it came out sounding like was "Mr. Soh was wrong! Look at me prove him wrong!" Sorry (...) (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: LeJos threads / sleep() takes too long
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Hi Bart, (...) if you mean LISTENER_THREAD then that sounds plausible. (...) Yes, LISTENER_THREAD has maximum priority, so it runs before any threads of lower priority, even yield doesn't help. (...) Yes, I think we'll have to fix that somehow. (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.java)
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| | Re: ForthPad v0.9
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I'm re-posting this message at the lugnet.robotics.rcx level in case anyone missed it. 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 (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx)
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| | Re: ForthPad v0.9
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(...) The firmware downloader built into BricxCC is a port of Dave Baum's NQC code to Delphi. It calculates the checksum up to a length of 0x4C00. The limit of 0xCC00 is based on the sum of length + start (where start is = 0x800). John Hansen (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Pneumatics: the old and the new
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(...) And most other pneumatics systems do too, but its easier if you have a tank in which you have a high pressure (or a low pressure). (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: exponents, e^
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you know i was looking at lejos, java for RCX, and it seems to have exponents, trig, etc. functions built in. any advantages legOS has over lejos i don't know about. if not, i think i may give it a whirl.... -dave (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | RE: ForthPad v0.9
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(...) Thanks John, I'll try this soon. You may want to post this to the next level higher to let other non-pbForthers see what you are up to. Does your alternative firmware loader take into account the limit at 0xCC00? If the replacement firmware (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: exponents, e^
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Dave I am working on a number of maths functions that includes loge log10 expe and exp10 x^y as well as trig functions. As you note it requires the specification of the mantassa and exponent desciption of the float variable for the RCX. Usually this (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | LeJos threads / sleep() takes too long
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Experimenting with Lejos, two 'major' problems: memory (cleaning up platform & lang: Math.class is huge!) and... threads. I have the impression my "try { sleep(nnn) }" takes a somewhat arbitrary time. It's 'at least' nnn milisec, but often much (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.java)
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| | Re: Pneumatics: the old and the new
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(...) Hey, don't blame me if it should fall off though ;-) Speaking of wall climbing robots, does anyone have or seen one of these 4-legged Climb@Tron creatures shown at (URL) look kinda cute especially Vertibug. And at $14.95 each, they're a lot (...) (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Pneumatics: the old and the new
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(...) Hi, those who have the old pneumatics and a couple of the blue air tanks may want to try the experimental setup at (URL) it! And I suspect the window walker critter would still work without the air tanks :-) (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | 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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