 | | Re: problem with floating point numbers (legOS 0.2.5)
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(...) You are the second person to report something like this, so there must be something wrong somewhere. I will take a closer look at this when I get a chance. I am busy until Tuesday though. I know I will forget, so keep e-mailing me until I fix (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx.legos)
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| | Re: IR Tower Use
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(...) This isn't true at all. The tower converts an RS-232 serial transmission directly into IR and vice-versa. It is a pretty standard protocol. -Kekoa (23 years ago, 26-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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| | Re: IR Tower Use
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(...) You can't really do what you are trying to do. The tower is designed to operate in request-reply mode. It sends a request, waits a few seconds, receives a reply during that time, then turns off. The idle state of the tower is off, and (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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| | Re: Custom Firmware, IR Problems, and Dead RCXs (long)
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(...) Maybe this is shedding some light on why LEGO removed the Power Port in the 1.5's. To remove a known problem without dealing with it.?.?.? Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (23 years ago, 26-May-01, to lugnet.robotics.rcx)
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| | RE: Custom Firmware, IR Problems, and Dead RCXs (long)
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Even more interesting.... I've also just replaced the IRED I replaced a few hours ago in my RCX :-( This time, I'm putting a limiting resistor between the IREDs in the RCX to keep the current within limits. The following is pure conjecture on my (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx)
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| | RE: Custom Firmware, IR Problems, and Dead RCXs (long)
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(...) Actually, there's a regulator on the Tower that takes the voltage for the digital side to +5 and keeps it there. The capacitor is only rated for 10V. The higher voltage will allow higher current through the IREDs as they are connected right to (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx)
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| | Re: Custom Firmware, IR Problems, and Dead RCXs (long)
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(...) I'm pretty sure I know your problem to your number 2... The IR Tower has no protection against higher power. Running an unregulated power source into the IR tower is not a good idea! Use a 9v regulator package (The little 3 prong packages with (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx)
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| | Custom Firmware, IR Problems, and Dead RCXs (long)
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The following information is my own opinion and not endorsed or verified in any way by LEGO. That being said, I think that now is the time to relate some experiences I've had over the past couple of months with my RCX and IR tower - and it boils (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx.legos)
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| | Re: IR Tower Use
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(...) Not really -- the tower uses its own proprietary communcations format. It's similar enough to that used by remote controls that learning remotes can pick up the signals, but I haven't heard of anyone going the other way around. (23 years ago, 25-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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| | IR Tower Use
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I know this may be a bit off topic, but didn't know where else to post, I own an IR tower and remote control, and was wondering if it is possible to use the IR tower for other things. eg using PC + tower to control stereo/TV, or using IR remote to (...) (23 years ago, 25-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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| | problem with floating point numbers (legOS 0.2.5)
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Hi Here are two programs I've compiled and downloaded into my RCX. The first one works fine whereas the second doesn't (no music). Since the only difference between them is the type of the variable "number", I'm worrying about the ability of the (...) (23 years ago, 25-May-01, to lugnet.robotics.rcx.legos)
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| | Re: LVI install problems
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Had an error "C:\Program Files\JavaSoft\JRE\1...1\Classes" is not a directory, but I just created a directory there and now it's working fine. Thanks!! (23 years ago, 24-May-01, to lugnet.robotics.rcx.java)
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| | Re: LVI install problems
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At least it runs. :-) That error means that for some reason install could not create the directory .lvi in your windows directory. Check to see if you are able to create a folder in the Windows directory by hand, as this just calls "standard" java (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.java)
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| | Re: modulo in legOS 2.4 ?
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-----Original Message----- From: Ciaran Jessup <ciaranjessup@myrealbox.com> To: lugnet.robotics.rcx....lugnet.com <lugnet.robotics.rcx...ugnet.com> Date: 24. mai 2001 22:39 Subject: Re: modulo in legOS 2.4 ? (...) an (...) you (...) ah, i mean the (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.legos)
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| | Re: modulo in legOS 2.4 ?
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do you mean 3mod3 = 0 or mod(-3)=mod(3)= 3 ? If you mean the first then you want the %age operator, otherwise you want an 'abs' function not sure if legOS supports this as doesn't support floats(entirely), but you can always write a quick (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.legos)
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| | Win2000 and SP2
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Has anybody had problem running Robolab2 on a win2000 PC with SP2 installed?? I've recently tried to install Robolab on a PC at work and found that on loading it fails with an error message, I'll take care to remember the message if this rings a (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.robolab)
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| | RE: modulo in legOS 2.4 ?
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Ummm, that would be the % operator in C, right? (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.legos)
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| | modulo in legOS 2.4 ?
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hi all, just wonderin if there is such a thing as a modulo opperator in legOS 2.4 ? i checked the stdlib.h (which seems to be the place where the math functions are), but no luck. regards kenneth johansen kennethj@stud.cs.uit.no (23 years ago, 24-May-01, to lugnet.robotics.rcx.legos)
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| | Re: LVI install problems
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(...) Well, that seemed to do something. It finds install.class, but I get the error message "Error creating .lvi directory" Thanks for your help! -- Steve (ps my Learning Java book arrives from amazon.com today, so I've got to get this working! :O (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.java)
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| | Re: LVI install problems
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Try setting the classpath to point to the place where the install class is. I have this problem a few times, and most of the time I can't get it to work. :-( Most of the time people just have to experiment as very few ever seem to report having this (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.java)
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