 | | Re: Can't open serial port in Linux
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(...) Currently there isn't any notion of an "error code" from the serial port class - opening the serial port just returns true/fals. I'm wary of adding error codes here because they'd need to be added in a portable manner (and across the Unix, (...) (25 years ago, 30-Dec-99, to lugnet.robotics.rcx.nqc)
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| | barcode reader for RCX (was: how does a bar code reader work?)
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(...) Well, I tried this, and it's hopeless. The RCX can't poll the sensor nearly fast enough, and even if it could you'd need a lens to focus the sensor better. (...) Instead of using my idea, I took the suggestion of someone else and just used a (...) (25 years ago, 30-Dec-99, to lugnet.robotics, lugnet.trains, lugnet.robotics.rcx)
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| | Re: Can't open serial port in Linux
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Hi. I just got through fixing a similar problem with my linux box (the fix involved a lot of tedious changing IRQ's in the BIOS, with a lot of tedious rebooting in between). Beyond Dave's good advice, you might want to check out the linux serial (...) (25 years ago, 30-Dec-99, to lugnet.robotics.rcx.nqc)
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| | RCX as TV remote?
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Hi, all. I just got an RIS for Christmas, and I've been happily alternating between hacking on it and lurking here and at the various Lego sites on the web. Yippee, legos! Ahem. I've been interested in the possibilities of using my Palm IIIe as a (...) (25 years ago, 30-Dec-99, to lugnet.robotics.rcx.legos, lugnet.robotics.palm)
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| | Re: differences between 9719 and 9747?
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Hi, Note that if you get the RIS 1.0 -> RIS 1.5 upgrade (costs $25.00, but free if you bought your RIS 1.0 after August), it includes the 60 missing pieces, additional CD, manuals, and test pads. Plus the RIS 1.0 has the AC adapter while the RIS 1.5 (...) (25 years ago, 30-Dec-99, to lugnet.robotics.rcx)
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| | Re: differences between 9719 and 9747?
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(...) Here are the differences in parts. They are alse some differences in manual and software, but I don't know them. New parts in set 9747 (Mindstorms 1.5), not in set 9719 (Mindstorms 1.0) Count Part # Part Color 4 3794 1x 2 plate, 1 stud Gray (...) (25 years ago, 30-Dec-99, to lugnet.robotics.rcx)
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| | Installation of pbForth 1.11 Problems
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Last night I tried to install pbForth 1.11 with nqc (2.02). It beeped like it was installed and "4th" was displayed on the screen, but I could not turn it off. I had to take out the batteries to get it to turn off, but by then, the pbForth was gone. (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.pbforth)
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| | Re: touch sensors - two at a time ?
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(...) The problem you are having, is that the processor is much faster than a human being... The code will allways tend to see one sensor befor the other, because of the processors speed, unless you can hit them together to within a very few mSec. (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.legos)
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| | RCX "locking up" when trying to use dll
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Has anyone experienced the RCX "locking up" when trying to use dll? When I try to download a .lx file with dll, the brick freezes. It won't respond to any buttons and I have to take the batteries out and re-load the firmware. Any ideas why this is (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.legos)
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| | Re: Can't open serial port in Linux
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Check the permissions on /dev/ttyS1. I think the default is for it to be locked down to superuser only. If this is the case, then running nqc from a normal user account would cause the error you got. You'll need read/write rights to /dev/ttyS1 in (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.nqc)
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