 | | Re: How to turn LEDs on/off ?
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(...) Well could you please be a little helpful and describe how you turn that LED on and off? I'm not familiar with communications from the RCX and there's no info on Dave's command reference, and I figured it was highly unlikely that's the LED (...) (20 years ago, 10-Aug-04, to lugnet.robotics.rcx.legos)
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| | Re: How to turn LEDs on/off ?
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(...) Sure it does. They emit infrared light -- they're part of its IR communication system. (20 years ago, 10-Aug-04, to lugnet.robotics.rcx.legos)
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| | Re: How to turn LEDs on/off ?
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(...) What LED are you talking about? The RCX has no LED build in. If you mean the LCD display, you can use the cputc_native_*() functions described here: (URL) you mean a LED connected to a motor output, just use the motor_* functions described (...) (20 years ago, 9-Aug-04, to lugnet.robotics.rcx.legos)
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| | How to turn LEDs on/off ?
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What is the command to turn an LED on or off ? I've looked through the kernel files and I don't see anything that seems to do this. (20 years ago, 9-Aug-04, to lugnet.robotics.rcx.legos)
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| | Re: Add motor driver to RCX
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(...) I've drawn a circuit to control more powerful motors (sadly in Visio format at the moment, though I my convert to jpeg later to post it). Since the H-bridges have flywheel diodes across the transistors, this will short the motor when the (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx)
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| | Re: OS X Complier problems solved--now struggling with BrickOS
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(...) Periodically I pick up this project again, get frustrated and give up. Then a few more months pass and I pick it up again... I seemed to have more success with the cross compiler this time around. BrickOS gave me a little trouble (strange (...) (20 years ago, 8-Aug-04, to lugnet.robotics.rcx.legos)
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| | Re: Beginners questions
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Thanks James and the others who provided feedback. A couple of the links provided were new and did provide some good info. My team became very proficient with the RIS environment and are doing well learning Robolab as long as they stay on the beaten (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx.robolab, FTX)
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| | Re: Add motor driver to RCX
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(...) The amplifiers definitely won't work. I am bringing a demo 'bot to BrickFest which uses the buggy motors with an RCX. The RCX actually drives regular technic gear motors which drive a cam shaft which operates the buttons on the 9v (6 x AA) (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx)
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| | Re: Multi-RCX Communication
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(...) legOS allows this with a networking protocol. leJOS allows this if you're willing to work with Jini. Both of these require replacing the firmware with either C or Java. You can build your own networking protocol in any language, really. (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx.legos, FTX)
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| | Re: RIS 2.0 upgrade CD? (part 3805)
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(...) 2.0 adds new programming features which are mostly noticeable in the graphical programming environment that LEGO supplies. If you're using a different language, though, then the differences will be handled by the compiler. NQC was updated to (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx, FTX)
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