 | | Re: a problem ... need some help !
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On the off-chance you might be trying to use lejos with BricxCC here are a few instructions that should get things working. It has been a while since I tried to use lejos with a recent java SDK and it turns out that the pre-built minimal lejos (...) (20 years ago, 5-Feb-05, to lugnet.robotics.rcx)
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| | a problem ... need some help !
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hi everyone, im just starting to work with lego RIS2.0 and Lejos, but i have a problem with the lejos setup i did all the instructions and when i tried to compile a java file using the lejosc command i got this reply: Unable to execute javac. Return (...) (20 years ago, 4-Feb-05, to lugnet.robotics.rcx)
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| | Re: New TLC Mindstorms survey
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(...) I'm not sure what good it'll do if the survey is that old but i took it anyway. BTW hope that release it soon since i''ll soon (i hope) be getting 2.0. I'd hate to get it and then a few months later see 3.0 in the shelfs. (20 years ago, 31-Jan-05, to lugnet.robotics.rcx)
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| | Re: RCX3 - Can extra hardware functionality be added?
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(...) A friend of mine is actually working on this 'pod' concept. i have been playing with a working prototype and i must say that it preforms very well. and it is SO nice to not be limited on the number of sensor inputs. pictures of the prototype (...) (20 years ago, 31-Jan-05, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Sending Commands to Spybot from RCX - Question from a Beginner to Comm area.
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(...) First of all, my apologies for not answering you via email. I've been a bit busy at work. I needed to run some tests myself before I could properly respond as well. The 0x9223 from the RCX happens to match the IR sent out by the Spybot (...) (20 years ago, 28-Jan-05, to lugnet.robotics.spybotics, lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: RCX3 - Can extra hardware functionality be added?
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(...) I have a proposal that would theoretically allow an RCX to use 49 motors and 147 active sensors (or 588 switches!). This has the potential to control an entire Ball Contraption or railway! The idea may be expandable to four times those (...) (20 years ago, 27-Jan-05, to lugnet.robotics.rcx)
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| | Re: RCX3 - Can extra hardware functionality be added?
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hi so IMHO don't expect more outputs because of the power 3 motors + 3 sensors + mainboard have to be powered by bateries some time ago i proposed to make connectors smaller (URL) good think is the size of these connectors of course second is that (...) (20 years ago, 26-Jan-05, to lugnet.robotics.rcx)
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| | RCX3 - Can extra hardware functionality be added?
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Having had a good look inside my RCX, I'm thinking seriously about what is really possible in the same space envelope, whether extra ports or functions could be added for RCX3. I think it's useful for us to know what's inside the RCX, especially if (...) (20 years ago, 21-Jan-05, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: RCX IR Tx Circuit - and Now Rx Circuit Too!
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(...) For the time being, all the RCX ones are in the same Brickshelf folder, though obviously this is unavailable for a while whenever I add one. Code Pilot, RC Tower and other units are in other folders. Russell Nelson has added links on his (...) (20 years ago, 21-Jan-05, to lugnet.robotics.rcx, FTX)
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| | Re: RCX IR Tx Circuit
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(...) Thanks for all your work on this Mark! It is very interesting, even for someone like me with only basic knowledge of electronics. Are you planning to put it all together on a web page some day? ROSCO (20 years ago, 20-Jan-05, to lugnet.robotics.rcx, FTX)
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| | RCX IR Tx Circuit
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Here's my drawing of the RCX IR transmission circuit (receiver circuit to follow soon): (URL) With the voltages as shown, the RCX is not transmitting. The IR LEDs are powered by a 600mA current sink. I haven't measured for waveforms yet - the (...) (20 years ago, 20-Jan-05, to lugnet.robotics, lugnet.robotics.rcx, FTX)
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| | BricxCC test release
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Folks, I've been fiddling around with how BricxCC and NQC talk to the RCX when using the USB tower. It's because of several users experiencing problems when trying to download programs from within BricxCC (using NQC behind the scenes). Depending on (...) (20 years ago, 18-Jan-05, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | RCX Sensor Port and Power Supply Circuits
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Here are my drawings of the RCX sensor port and power supply circuits, complete with measured voltages from inside the box. These are averages measured with a DMM, not an indication of peak waveforms. I might use an oscilloscope later if there's a (...) (20 years ago, 17-Jan-05, to lugnet.robotics, lugnet.robotics.rcx, FTX)
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| | Re: sub-vi begin vs end control
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(...) Hi, This is a *minor* bug in RoboLab. The sub-vi diagram will have begin and end terminal labels swapped, but the program will function properly. Use the text tool to rename the terminal labels. Thought it should have been rectified in ver (...) (20 years ago, 17-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | Re: sub-vi begin vs end control
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(...) In a LabVIEW program (vi) there is a front panel and a block diagram. The front panel is the user interface and contains both controls and indicators. When you place a control/indicator on the front panel a corresponding terminal is created on (...) (20 years ago, 17-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | RE: sub-vi begin vs end control
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Hi Tom, Just for my education purpose, I'd like to understand the difference between the "begin" & "end" control boxes at the "Front Panel" window. Although they look identical, they must be different since they failed to wire to the blocks next to (...) (20 years ago, 16-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | Re: sub-vi begin vs end control
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(...) It is a leftover from LabVIEW. When you create a sub.vi, LabVIEW reuses the name of whatever is wired to the control/indicator. This behavior makes perfect sense in LabVIEW but much less so in Robolab. FWIW, the names are little more than (...) (20 years ago, 16-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | sub-vi begin vs end control
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Hi, After a sub-vi is created, there are two controls created namely begin and end. Would someone explain why they are backwards? That means, it creates an "end" control linked to the beginning of the sub-vi, while the "begin" at the end. Thank in (...) (20 years ago, 16-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | Re: combining LDCC and NQC style automation?
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(...) If you'd rather do a little hardware work, than learn pbForth, I have a couple suggestions. 1) You could use LEDs instead of regular lights. An LED will only light, when the power is going the correct direction. So you could connect 1 LED to (...) (20 years ago, 14-Jan-05, to lugnet.robotics.rcx, lugnet.trains)
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| | Re: combining LDCC and NQC style automation?
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[big snip] (...) I do have DCC in the latest pbForth, but I've sort of dropped official support for older versions of MacOS. That being said, I think the instructions are still up on the site for getting it to work. :-) Please post here if you;re (...) (20 years ago, 14-Jan-05, to lugnet.robotics.rcx, lugnet.trains)
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