 | | installation problem!
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Running Windows98. All works well with original RCX firmware and NCQ programs. Was anxious to try out pbFORTH as an alternative!! Unzipped pbforth111.zip and used RCX Command Center to download pbForth.srec. Progress window looked good UNTIL the (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.pbforth)
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| | Re: opposite of float command for nqc ?
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Thanx. That solved my problem. (...) including a (...) directions (...) drives. (...) used (...) where (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.nqc)
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| | Firmware startup bug?
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Probably related to the garbage on the lcd that you get when turning off the RCX with a sensor active: if there is a light or rotation sensor or a pressed touch sensor connected to the RCX when you download firmware legOS will crash immediately (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: opposite of float command for nqc ?
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In NCQ & RCX Code, "Off" is the closest one gets to "locking" a motor. It will resist being turned, but in a crane application I can envision enough force to externally turn the shaft. You can prevet this from happening by including a worm gear in (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.nqc)
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| | opposite of float command for nqc ?
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is there a command for ncq the lock a motor in place, sorta opposite to the float command? I have a arm that i have made and it sits sorta like a crane with a motor to rotate it up and down. Problem is i need it to stop at the bottom to pick an (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.nqc)
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| | Re: rotation sensor mystery solved?
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(...) That's one of the reasons I got mine. I was trying to make a simple balancer when I built the pendulum I described (with 4.5 degree accuracy). There were a lot of problems with my mechanism, but the overriding problem was that the 0 point (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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(...) which (...) I added code to assume that 2 step transitions were 2 steps in the last known direction of travel. The results were MUCH worse than just ignoring those steps, as the current code does. This seems to suggest that the 2-step (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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(...) I got a letter two days ago indicating that the two rotation sensors I ordered the first week in January are nicely on backorder and will ship in a month or so. This is similar to what I was told on the phone when I ordered them from Shop and (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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(...) I tried hacking something like this into the old rotation sensor code, and it didn't go real smoothly, but is definitely a necessity (I think) if you want the sensor to handle very, very high speed apps. (...) I am. I'm almost tempted to steal (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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(...) What exactly do you intend here, Martin? I spent quite some time working on this over the summer and in the fall, and had a great deal of problems but also some success. I'd be happy to help you out with my experiences if you have some idea (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: ncq proximity
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(...) There's a fairly good example of proximity detection on Simen Svale Skogsrud's site. He posted a proximity task in NQC with his vector rover example. The direct link to the code is (URL) Ian Warfield (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.nqc)
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| | Re: rotation sensor mystery solved?
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(...) It is very very interesting. I have worked the last weeks evenings to discover the fault in my concept, my modell and my Software. and I have discovered, that the fault can't be on my side. I discovered that my implementation of a fake (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | ncq proximity
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does anyone hae a complete example of proximity code for nqc. i keep finding snipets but not a complete example. I'd like something a bit more advance than the example for nqc. the example i saw used multiple samples to determine if an object was in (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.nqc)
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| | Re: QC question
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If you exit from main, your programs return control to the ROM. Use PowerOff() to switch off RCX -- ___...___ Ferrara Francesco Vlad Dumitrescu <vladdu@nospam.hotmail.com> wrote in message news:Fou0IK.5J3@lugnet.com... (...) routines (...) let (...) (25 years ago, 24-Jan-00, to lugnet.robotics.rcx)
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| | Re: rotation sensor mystery solved?
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(...) Hi Ben, i think that's very interesting work you're doing, especially because i'd like to build sophisticated balancing bots, and already got 2 rotation sensors from lego world shop for this reason. I'm currently not actively working on that, (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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I put in some debug code to catch rotations which skip a state (transitions like 3->1 or 0->2) which the legOS table `diff2change' currently translates to 0 steps (because we can't be sure whether that was 2 steps forward or 2 steps back). These (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: sending keepalive... ???
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Hi Rossz (...) Yes, I downloaded the legOS.srec on top of the existing Lego firmware and some programs. When you download the legOS firmware will anything currently in RAM be deleted? I'll try taking the batteries out for a while and starting again. (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Bug in WinlegOS installer
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In my rush to get the package released I made "one more insignificant change". This resulted in a bad path setting being placed in the autoexec.bat file. At the end of the install skip rebooting and open autoexec.bat in the editor. The installer (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
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| | Re: more user questions
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Thanks, your directions worked perfectly. (...) Originally, the line appended to autoexec.bat was (something like): set path=set path=c:\LEGOS\H8\BIN...ath%%path% which I altered to: set path=c:\LEGOS\H8\BIN...BIN;%path% (25 years ago, 26-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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(...) old (...) The version I posted works with all cable lengths and battery strengths I have access to. I just extended the range of each state a bit toward the low battery end of the scale. --Ben (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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