 | | Re: Robolab Documentation
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(...) based on a question that I asked back on Dec 11: "I followed instructions replacing firmware.txt with the replacement file as instructed. The download went smoothly,immediately upon finishing (two beeps) the LCD screen started counting in (...) (20 years ago, 7-Jan-05, to lugnet.robotics.rcx.robolab)
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| | LNPd keeps sending TX_FAILURE
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I'm running LNPd on Gentoo Linux 2.6.7. Everything seems to work fine except transmitting messages to the RCX. The lnptest application that comes with LNPd keeps reporting a Collision every time it tries to transmit something. It does however (...) (20 years ago, 7-Jan-05, to lugnet.robotics.rcx.legos, FTX)
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| | NQC 1.0 compatibility mode
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Would anyone miss terribly the NQC 1.x compatibility mode if I were to remove it? At this point it seems like it is a very useless feature, but maybe someone out there is still using the 1.x API. What do you think? John Hansen (20 years ago, 6-Jan-05, to lugnet.robotics.rcx.nqc)
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| | Re: What does RCX stand for?
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(...) I know, but it actually isn't translated: Das Gehirn des Robotics Invention Systems ist der RCX, eine Abkürzung für "Robitics Command System". .... Le cerveau du Robotics Invention System est le RCX, qui est l'abréviation de Robotics Command (...) (20 years ago, 5-Jan-05, to lugnet.robotics.rcx)
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| | RE: Robolab Documentation
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Although I shall not consider that as a manual, this is a very good reference book for intro to Robolab. Well, just say intro may not be fair either, as it does include some advanced concepts at the end of the book. It contains useful sample codes, (...) (20 years ago, 5-Jan-05, to lugnet.robotics.rcx.robolab)
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| | Re: What does RCX stand for?
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(...) Something appears to be lost in the translation. Check here: (URL) emphasis of Mindstorms series is on eXploration rather than on systems. CS (20 years ago, 5-Jan-05, to lugnet.robotics.rcx)
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| | Re: Robolab Documentation
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(...) for ROBOLAB before I order it? By the way, Dick, can you say if your new firmware works with ROBOLAB 2.5.4? Jerry (20 years ago, 5-Jan-05, to lugnet.robotics.rcx.robolab)
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| | Robolab Documentation
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Several recent posts have complained about the lack of Robolab documentation. "Engineering with Lego Bricks and Robolab" seems like a pretty good reference / tutorial handbook. It's available from (URL) (20 years ago, 4-Jan-05, to lugnet.robotics.rcx.robolab)
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| | Re: Swan Firmware
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(...) The Swan firmware is Dick Swan's replacement firmware which is compatible with the standard LEGO firmware (firm0328.lgo). The Swan firmware is available at the link mentioned in this post: (URL) use swan.nqh (available in the zip file (...) (20 years ago, 4-Jan-05, to lugnet.robotics.rcx.nqc)
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| | RE: New invention instructions
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(...) Participating the state FIRST LEGO League Tournament is a great idea. However, the challenging effect varies greatly. I guess it really depends on who holds the events. I went to one held in my state, I was completely disappointed. It turned (...) (20 years ago, 4-Jan-05, to lugnet.build, lugnet.people, lugnet.people.newbie, lugnet.people.teens, lugnet.robotics.rcx.robolab)
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| | Re: Swan Firmware
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(...) what is the swan firmware? what have I missed? Thomas (20 years ago, 4-Jan-05, to lugnet.robotics.rcx.nqc)
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| | Re: Today's Challenge
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(...) Your apologizing to be a teacher is accepted ;-) However, you must not apologize to work with ROBOLAB ! Anybody who followed the development of great LEGO robots has seen that ROBOLAB allows easy programming from beginners to absolute (...) (20 years ago, 4-Jan-05, to lugnet.robotics.rcx.robolab)
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| | Re: New invention instructions
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(...) Four: -If you're between 9-14, ask teacher at school to join First Lego League. Five: -If you're not, participate in a local LUG or organization that has regular robotics challenges, etc. Calum (20 years ago, 4-Jan-05, to lugnet.build, lugnet.people, lugnet.people.newbie, lugnet.people.teens, lugnet.robotics.rcx.robolab)
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| | Re: What does RCX stand for?
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(...) according to the RIS 1.5 user guide in German and French, it is "Robotics Command System". Thomas (20 years ago, 4-Jan-05, to lugnet.robotics.rcx)
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| |
| | Re: New invention instructions
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|
(...) three variations: ONE: a) look around you room, dig in your LEGO boxes, have a walk through the cellar or the attic b) build the facinating idea you just had. TWO: a) turn on your computer, start the web browser b) find something facinating (...) (20 years ago, 4-Jan-05, to lugnet.build, lugnet.people, lugnet.people.newbie, lugnet.people.teens, lugnet.robotics.rcx.robolab)
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| | Today's Challenge
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A cry for help: I am trying to implement Ben Williamson’s Fetchbot (URL). I am happy that I have the mechanics right. The problem is that I want to emulate Ben’s code in Robolab. (Yes, there are reasons I use Robolab which include me being a teacher (...) (20 years ago, 4-Jan-05, to lugnet.robotics.rcx.robolab)
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| | Re: questions on events
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(...) This is where you use the event fork(s) that you asked about in a different message. You nest these forks to determine which event has been triggered. (...) Robolab is just a LabVIEW program. Viewed in that context, it is an amazing bit of (...) (20 years ago, 3-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| | Re: questions on events
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(...) Yeah, my fault. I said two things that do not have to follow. Yes, you can use one event monitor to watch more than one event... and yes, you can't nest event monitoring statements. I've not used an event watcher to monitor more than one event (...) (20 years ago, 3-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| | Swan Firmware
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I have installed the new Swan Firmware via Brixcc 3.3.7.8 using standard nqc coding works ok. I'm having problems trying to include any of the new code. Question 1 How do we use the Swan.nqh file Question 2 Can we use the new variables defined in (...) (20 years ago, 3-Jan-05, to lugnet.robotics.rcx.nqc)
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| |
| | RE: Formula container?
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Ok, I got it... Thanks to the Tufts site. (URL) is kind of odd that the navigation is to "create ---> constant"... "constant?" Hmmm... -- E (...) (20 years ago, 3-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| |
| | RE: Define Event icon...
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(...) Hi Jerry, Event Handling can be a long chapter to talk about. I am sure you will find a more well-explained chapter in some OS or just language book such as C++, or even in Java. Briefly speaking, event is a piece of real time information, (...) (20 years ago, 3-Jan-05, to lugnet.robotics.rcx.robolab)
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| |
| | Formula container?
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I am trying to compare the light value of two sensors, namely s1, & s2 . I don't want to go through the long route which is to save the light values from different sensors to different container, then, compare them. How about using "formula (...) (20 years ago, 3-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| |
| | RE: questions on events
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(...) Hmm..., notice that the start monitoring icon allows to watch for multiple events within the same task. If each task can only monitor a single event, that feature being there does not quite make sense. (...) This is why I suspect the "event" (...) (20 years ago, 3-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| | RE: Define Event icon...
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Yes, Tom. This is exactly what I was trying to do... To trigger an event when it becomes 3. Great! Thank you very much! Cool! (...) (20 years ago, 3-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| | Re: Define Event icon...
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(...) The condition of being equal to 3 is not an event. However, the action of transitioning to 3 is. I'd use the "set up normal event" command followed by the "define event" command. Set the upper threshold to 4, the lower to 2, and the duration (...) (20 years ago, 2-Jan-05, to lugnet.robotics.rcx.robolab)
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| | Re: questions on events
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(...) See previous post for the "I-don't-actually-do-Robolab" disclaimer, but, since Robolab & NQC both work on the same firmware... You can monitor multiple events, but only in *different* tasks. In other words, (to my knowledge) you can not "nest" (...) (20 years ago, 2-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| | Re: Define Event icon...
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(...) I fear I became very frustrated with Robolab, so can't help you *specificly* with that enviroment, but... at a firmware level, events can "watch" several different sources: sensors, timers, three simple counters... however, they can not be (...) (20 years ago, 2-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| | Re: Define Event icon...
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(...) Elizabeth, you are a few steps ahead of me in working with 'Events'. Could you explain, in plain English, what exactly an 'Event' is? ...it's not a 'State' because it can be a constant or a variable. Yet you can have an 'Event Fork' which is (...) (20 years ago, 2-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| | Define Event icon...
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Hi I'd like to set up an event to watch for a containers value = 3. I am trying to use the "Define Event" icon, but has no luck yet. Just wonder if there is anyone out there has suggestion. The official doc does not explain much different from what (...) (20 years ago, 2-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| | questions on events
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Are events stackable? Or it works more like "signal()", e.g. in C? e.g. I have 2 different light sensor events set to watch for value higher than 42, yellow & blue. Let say both sensors read 45 at the same time, RCX returns only one event being (...) (20 years ago, 2-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.nqc)
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| | crosscompiler does not compile arrays of objects
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Hello! I made a cross-compiler with the sources of gcc-3.4.2 and tried to compile this: Behavior a(); Behavior b() Behavior behaviors[] = {a,b}; ... Make fails with the error message: conversion from Behavior()() to non-scalar type Behavior (...) (20 years ago, 30-Dec-04, to lugnet.robotics.rcx.legos)
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| |
| | RE: brickOS port to FreeBSD
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John, I'm interested in how you got the USB tower working... I've got a Tcl package that talks to the LEGO USB tower driver under Windows, but nothing for FreeBSD yet. I'm willing to share the Tcl script with you if I ever get the tower working (...) (20 years ago, 23-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: using MacNQC with Spybotics via USB Tower
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(...) It is a capability of NQC but I was mistaken about the Mac version of NQC. It currently does not support the Spybotics target when the USB tower is used. One of the first changes I made when I took over NQC was to add the ability for NQC to (...) (20 years ago, 29-Dec-04, to lugnet.robotics.spybotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: RCX IR Transceiver Circuit
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(...) Indeed, you probably had something wrong there: I checked the battery of a serial tower I didn't use for a very long time, it was still fully charged. Philo (20 years ago, 29-Dec-04, to lugnet.robotics.rcx, FTX)
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| | Re: RCX IR Transceiver Circuit
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(...) I can verify the data on all but the zener and 6Cp transistor. I intended to put it in a text file with the diagram, but I'll add it to the diagram instead. The 1Kp and 3Kp transistors have equivalents of BC548B and BC558B, which are common (...) (20 years ago, 28-Dec-04, to lugnet.robotics.rcx, FTX)
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| | Re: Errors while installing brickOS 0.2.6.10
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(...) These two installers offer the brickOS beginner an extremely easy way to get Cygwin and the necessary cross compilers installed on a Win32 system as well as all the brickOS files (and LeJOS files also). If you download and run these two (...) (20 years ago, 28-Dec-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: What does RCX stand for?
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(...) TLC thinks so too: (URL) (20 years ago, 28-Dec-04, to lugnet.robotics.rcx)
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| | Re: RCX IR Transceiver Circuit
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(...) Thanks for this one, Mark! For the sake of completeness, some data on devices used. Note: as there are "collisions" in SMD device names, these are only "very probable"... 1Kp: (URL) 3Kp: (URL) are NPN and PNP general purpose transistor. A4p: (...) (20 years ago, 28-Dec-04, to lugnet.robotics.rcx, FTX)
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| | Re: brickOS port to FreeBSD
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Hi Jarod, (...) Ok, you can get it from ftp://ftp2.za.freebs...d-usb.diff I haven't been able to get the fast mode to work yet. I guess firmdl needs something different from NQC because it do work in NQC. I have tried to make the changes so that (...) (20 years ago, 27-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: Errors while installing brickOS 0.2.6.10
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(...) Sorry for the late reply! I am wondering if the two installers are required, and what they are for. (20 years ago, 27-Dec-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: brickOS port to FreeBSD
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(...) Hi John, I would be interested in the patches to firmdl and dll. If you could please post them somewhere or email them to me. Thanks, Jarod (20 years ago, 25-Dec-04, to lugnet.robotics.rcx.legos)
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| | RE: Latest Version of ROBOLAB
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Jerry, It better NOT!!! No one would "sell" beta version for $$$. :-) -- E (...) (20 years ago, 24-Dec-04, to lugnet.robotics.rcx.robolab)
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| |
| | Re: Latest Version of ROBOLAB
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(...) Thanks Elizabeth. Another possibility: In 2.5.4B, could it be 'B' for beta? Jerry (20 years ago, 24-Dec-04, to lugnet.robotics.rcx.robolab)
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| | RE: Latest Version of ROBOLAB
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Jerry, I purchased the "B" from the lego site, www.legoeducation.com . I was asking for the difference between the 2.5.4 & 2.5.4B as well, but have not received response yet. Anyone? -- E (...) (20 years ago, 24-Dec-04, to lugnet.robotics.rcx.robolab)
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| | Latest Version of ROBOLAB
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|
Elizabeth Mabrey, in her last post, referenced ROBOLAB 2.5.4B. I have just procured a copy from my Spectrum (distributor in Canada) but it is 2.5.4 (without the 'B'). Do I not have an up-to-date copy? ...or, is there a download for 'B' somewhere? (...) (20 years ago, 24-Dec-04, to lugnet.robotics.rcx.robolab)
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| | RCX IR Transceiver Circuit
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(...) I managed to get this one drawn today: (URL) N.B. I cannot guarantee accuracy as this is my own interpretation of the circuit of my own IR Transceiver, using data from reference books and tracing the circuit myself, so I might have made (...) (20 years ago, 23-Dec-04, to lugnet.robotics.rcx, FTX)
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| | follow up: possible bug in the investigator of Robolab2.5.4B
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I thought I should do a follow-up regarding a posting I sent out earlier regarding problem in investigator /Robolab2.5.4B. A gentleman, Bernard Catt ,verified a bug for me: If you use the Blue or Yellow data sets, the following will happen: (...) (...) (20 years ago, 23-Dec-04, to lugnet.robotics.rcx.robolab)
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| | Re: brickOS port to FreeBSD
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|
(...) Thanks, I'm up and running using binutils-2.15, gcc-3.4-20041217 and your gcc-3.3 patch to the cvs version of brickOS. I also have the USB Tower working. Would the brickOS guys be interested in FreeBSD patches to firmdl and dll? John (20 years ago, 23-Dec-04, to lugnet.robotics.rcx.legos)
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| |
| | RE: Problem with the new robolab2.5.4
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Sorry, I think I need to clarify further... - This is in the "Investigator" section, NOT the regular program area. - after I click on the big "upload" arrow, I changed the dataset name to, e.g., "ds1", but there is no graph. - I click on the "upload (...) (20 years ago, 21-Dec-04, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | Problem with the new robolab2.5.4
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I wonder if there is anyone has a chance playing with the investigator with the 2.5.4/B. It seems to be a bug: Symptom: 1) after doing the programming in level 4, do to the upload data window by clicking the "upload area" icon 2) click the big white (...) (20 years ago, 21-Dec-04, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | Re: Wire communication
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(...) Hi, yep it does. Regards Ronald (20 years ago, 15-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: Wire communication
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A few questions and another answer: I don’t have my nqc ref to hand, but does the one external output on the cybermaster support float? I also have the suspicion that a more efficient (fewer ports tied up) solution might be achieved by wiring two (...) (20 years ago, 14-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: brickOS port to FreeBSD
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|
(...) I think the latest official gcc-binaries for brickOS are still 2.95.x. However, I have binutils-2.15 and gcc-3.4.0 running under linux and had only minor problems. Make sure you compile gcc without the stdc++ libraries or just ignore the (...) (20 years ago, 9-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: Wire communication
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(...) I think all you really need to do is switch the motor port between "float" and "brake". That's the same as opening and closing a touch sensor. I've used that for simple signals, and it seems to work fine, but I haven't tried more complex (...) (20 years ago, 9-Dec-04, to lugnet.robotics.rcx.legos)
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| | Wire communication
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Hello, I am currently trying to implement a communication protocol between two bricks using just one of the copper wire given with the brick. The protocol is based on manchester encoding, using a well-timed alternation of up and low signals. My (...) (20 years ago, 9-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: What does RCX stand for?
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(...) Me, too. So, I did a search and found it here: (URL) Entering the buzzword "RCX" - out came "robotic command explorer", unless TLC intended it otherwise. C S Soh (20 years ago, 9-Dec-04, to lugnet.robotics.rcx, FTX)
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| | RE: What does RCX stand for?
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I think it stands for Robotics Command eXplorer. (20 years ago, 9-Dec-04, to lugnet.robotics.rcx)
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| | Re: What does RCX stand for?
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(...) good question. i've wondered about this myself from time to time. ondrew (20 years ago, 9-Dec-04, to lugnet.robotics.rcx)
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| | brickOS port to FreeBSD
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Hi, I'm looking at porting brickOS to FreeBSD. I guess the first step is to get the crosscompiler etc. going. Which version of gcc and binutils is the best to use? I searched a bit but it isn't very clear which version to use, except that lots of (...) (20 years ago, 8-Dec-04, to lugnet.robotics.rcx.legos)
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| | What does RCX stand for?
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RCX'rs, I know it is a silly question and one that has probably been asked before, but what does RCX stand for? If I could find the answer, I wouldn't have to ask. Does it stand for Robotics Command System or Robotics Command Extrodinare? What? Todd (20 years ago, 8-Dec-04, to lugnet.robotics.rcx)
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| |
| | Any Code Archive, Links or Send Me Zip File Of Code?
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|
Hi I am a newbie. I have the Excellent Core Lego Mindstorms Programming Book, but is there a code archive, link, or could someone send me a zip? file with some examples? Cheers Dale (20 years ago, 7-Dec-04, to lugnet.robotics.rcx.java)
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| | Code Archive, Links or Send Me Email Attachment/s
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|
Hi I am a newbie. I have Extreme mindstorms, Lego Mindsorms Robots books, but was wondering if there is/will be a code archive available, or can anyone please direct me to where I can get lots of example code?, even email me some (zip file?)if they (...) (20 years ago, 7-Dec-04, to lugnet.robotics.rcx.legos)
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| |
| | Re: Errors while installing brickOS 0.2.6.10
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(...) I highly recommend that you use my cygwin and brickOS installers. If you use them you will more than likely be up and running with brickOS in a matter of minutes. See my BricxCC page at (URL) are links to the two installers: (URL) Hansen (20 years ago, 2-Dec-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Errors while installing brickOS 0.2.6.10
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Hi, I am a newbie. I have encountered some errors while installing brickOS 0.2.6.10. (URL) anyone encounter the same problems before? 1. When I just start cygwin, it gives me an error message like this: This application program can not be executed (...) (20 years ago, 2-Dec-04, to lugnet.robotics, lugnet.robotics.cybermaster, lugnet.robotics.edu, lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc)
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| | Re: Motor Speed Control
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|
(...) That's the case too for Swan firmware with standard parameters. (...) And yes, power consumption is much higher using on break. I measured variation of RCX current with one motor, power level 3 (50% duty cycle). Idle RCX current (35mA) is (...) (20 years ago, 1-Dec-04, to lugnet.robotics.rcx.nqc)
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| | RE: Motor Speed Control
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(...) :) (...) I'm not sure how the Swan firmware does it, but I have mine set so it cycles every 8 ms. It's on for 0 to 8 ms, then off (brake) for the rest, depending on the speed. That's fast enough to produce a very smooth result. There is no (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | RE: Motor Speed Control
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(...) Actually, it's more like standing on the brakes, letting go and then gunning the gas, stepping off the gas and standing on the brakes :-) And yes, that WILL use more gas, and more batteries. Now, if the resolutiion of timing for the brake (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | RE: Motor Speed Control
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(...) Yes, but I think the "power" portion of the cycle will draw more, because it's always trying to go from stop to full speed. Like driving a car with the brakes on. Start with the brake totally pressed, and the more you push on the gas, the less (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | RE: Motor Speed Control
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(...) The brake function (as far as I know) should not use more battery power as the short circuit is in the driver chip itself. The drivers are MOSFETs, so setting the H bridge to brake does not actually apply any battery power to the motor (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Re: Motor Speed Control
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(...) If you are not concerned with remaining pure, this interface (URL) should provide better feedback than the rotation sensor. -Rob A> (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Re: Motor Speed Control
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(...) I've been using a power/brake method (instead of power/float) for quite some time in BrickOS. That was one of the first big steps in getting my Legway to work. ( (URL) ) It allows you to program a robot to make smooth turns (slow, instead of (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Re: Motor Speed Control
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(...) I'm doing somthing similair at the moment. My robot runs along a track and needs to be controlled so it doesn't go too fast. I've successfully written some code which limits the top speed, you may be able to modify it or just incorparate ideas (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Re: Motor Speed Control
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Hello Iain, (...) You should definitely try Dick Swan's 10x firmware ((URL) Among other goodies (interpretation speed for example ;o), it features more power levels (128 instead of 8), and a flag to modify behavior of PWM motor control. Standard (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Motor Speed Control
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Hi, I'm trying to do a basic test setup to code a compact speed control module for the 9V gearmotor. I've mounted an encoder (rotation sensor) directly to the gearmotor shaft. In my code, I'd like to set a variable (speedDesired) and have the motor (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | rcxtty for usb
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Hi! I'm trying to run LegOS on SuSE 9.0. I built a 2.6.9 kernel with the USB tower module. After I load the module and plug in the USB tower, the little light in the tower goes on, so I know things must be working. However, I still don't know what (...) (20 years ago, 25-Nov-04, to lugnet.robotics.rcx.legos)
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| | Light seeker
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Hi, I was wondering if anyone has any experience programming (NQC) a stationary |light seeking head? I have one made using a rotation sensor for reference, and 2 light sensors but can't seem to get the programming down. |Thanks |John Jordan (20 years ago, 25-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Robot cleaner on the new inventors
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On the (URL) New Inventors> tonight (ABC TV Australia), there was a short segment on kids inventions, and two girls invented a floor cleaner based on an RCX. It looked like a fairly simple robot, with touch sensors each end, and some floor wipes (...) (20 years ago, 24-Nov-04, to lugnet.loc.au, lugnet.robotics.rcx, lugnet.mediawatch, FTX)
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| | Re: RCX Replacement Firmware
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(...) BricxCC and NQC with support for Dick Swan's enhanced firmware. If you know where it is go get it. If you don't, you can email me and I'll send you the link. This version has preliminary support for 256 global variables. BricxCC has some cool (...) (20 years ago, 23-Nov-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Lego remote control code for PC
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Is there a way to write programs on the PC that are controlled by the Lego remote control? Clearly the RCX can be programmed to react to signals from the remote control but I was wondering whether the same could be done for a PC. Thanks, Ralph (20 years ago, 23-Nov-04, to lugnet.robotics.rcx.legos)
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| | vision snapshots
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Hi, I've been using the lejos vision system to track a pattern of lights in the ceiling. It splits the image into regions, selects the brightest, zooms in, repeats, and so on. It then repeates this process for every point in the pattern. It returns (...) (20 years ago, 19-Nov-04, to lugnet.robotics.rcx.java)
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| | Re: BrickOS on OSX
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(...) Try the proceding links: (URL) (20 years ago, 19-Nov-04, to lugnet.robotics.rcx.legos)
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| | Re: Can't "make" BrickOS
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(...) Hi, looks to me like you didn't install the "make" package when you installed cygwin. The install doc here (URL) lists the packages you need to install with cygwin to build brickos. Hope this helps ROSCO (20 years ago, 18-Nov-04, to lugnet.robotics.rcx.legos)
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| | Can't "make" BrickOS
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I've been solving this problem for almost a month. What I do is delete cygwin and download again and again. Why? Here's the problem: $ ./configure; make Welcome to the BrickOS Makefile configurator. Attempting to find the Hitachi gcc compiler.(This (...) (20 years ago, 17-Nov-04, to lugnet.robotics.rcx.legos)
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| | Re: Robolab/RCX program code size and limits.
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(...) I know that the Bricx Command Center (available at (URL) contains an entry under the "Tools" menu called "Memory Map" that lists, among other things, how much free memory there is. I imagine that you could use this to compare the size of (...) (20 years ago, 16-Nov-04, to lugnet.robotics.rcx.robolab)
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| | Re: java.lang.NoClassDefFoundError: josx/rcxcomm/RCXPort
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(...) That it compiles shows that RCXPort.class is there, it should be in c:\lejos\lib\pcrcxcomm.jar (you can check with jar tvf c:\lejos\lib\pcrcxcomm.jar ). So apparently the java command doesn't get the proper classpath You can try giving it (...) (20 years ago, 16-Nov-04, to lugnet.robotics.rcx.java)
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| | Re: java.lang.NoClassDefFoundError: josx/rcxcomm/RCXPort
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(...) Juergen, Many thanks for that, but I am still getting the same error even when renaming my directories without spaces. Everything compiles fine, it is just when I try to run the code. Any other ideas? Thanks again. Laurence (20 years ago, 16-Nov-04, to lugnet.robotics.rcx.java)
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| | rcx to rcx
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Hi, Last weekend thanks to Ross Crawford’s crane2.c code (URL) figured out how to use The Lego Remote With BrickOS. Now I was hoping to find example code of rcx to rcx communication. I want to send the value of a Rotation sensor to a second rcx for (...) (20 years ago, 16-Nov-04, to lugnet.robotics.rcx.legos)
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| | Re: Forward or backward?
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(...) Warning: I've never actually used it but... x = OutputStatus(n), where n = 0, 1, or 2 (not OUT_A, OUT_B, etc.... at least accoding to the NQC manual) and x is the result. The result contains a boatload of information (see (URL) but essentially (...) (20 years ago, 15-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Forward or backward?
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I've just got back into Mindstorms and I'm updating an old program. I'm writing a task that needs to know in which direction one of the motors is set. Now I could have sworn their was an easy way to do this, but my memory has gone blank and the help (...) (20 years ago, 15-Nov-04, to lugnet.robotics.rcx.nqc)
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| | BrickOS on OSX
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Hello, I was wondering if anyone has compiled BrickOS to run on OS X with the USB IR Tower. I am able to successfully compile the GCC cross-compiler but I am unable to get the USB Tower to function correctly. Any help would be greatly appreciated. (...) (20 years ago, 14-Nov-04, to lugnet.robotics.rcx.legos)
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| | Communication between two RCX
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I have two RCX. I would like to use the first one to download PbForth (and other forth programs) to the second one using the infrared port. Is there a way to do this? Thanks Mario (20 years ago, 13-Nov-04, to lugnet.robotics.rcx.pbforth)
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| | Re: java.lang.NoClassDefFoundError: josx/rcxcomm/RCXPort
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Hi Laurence, (...) it might be the spaces in your classpath that cause the problem. Jürgen (20 years ago, 12-Nov-04, to lugnet.robotics.rcx.java)
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| | java.lang.NoClassDefFoundError: josx/rcxcomm/RCXPort
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Hello, I am new to Lejos and have been trying PC <-> RCX communications. Unfortunately the books I am using are out of date, I see now that RCXComm is being used to Comms. I followed the Tutorial on the Lejos site, the code compiles fine, but am (...) (20 years ago, 12-Nov-04, to lugnet.robotics.rcx.java)
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| | Re: BricxCC & downloading NQC programs failing
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(...) [snip, adjust timeouts] (...) I'm getting the same error with my Scout and Bricxcc/NQC for downloading programs, the direct control works fine. I found that having fresh batteries helped in getting programs to download successfully. I'll try (...) (20 years ago, 9-Nov-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: remote
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(...) Hi Chris, The remote control code now resides in remote.h (URL) basically comes down to defining a callback function which gets called when any remote key is pressed or released. I haven't kept up with the development, but there is an early (...) (20 years ago, 8-Nov-04, to lugnet.robotics.rcx.legos)
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| | remote
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Hello, I’m just recently getting back into playing with Legos. I bought my first house and had to fix it up before I could play. BrickOS was a lot easier to get into this time around thanks to BricxCC. BrickOS itself is better documented and has new (...) (20 years ago, 8-Nov-04, to lugnet.robotics.rcx.legos)
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| | remote
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Hello, I’m just recently getting back into playing with Legos. I bought my first house and had to fix it up before I could play. BrickOS was a lot easier to get into this time around thanks to BricxCC. BrickOS itself is better documented and has new (...) (20 years ago, 8-Nov-04, to lugnet.robotics.rcx.legos)
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| | Re: NQC contolling motors
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(...) Not exactly. What NQC allows you to do is set one of 8 patterns of pulse width modulation (PWM) for an output. So for instance the highest power level is "always on" (9V for 100% of a cycle), while a lower power setting is a mixture of "on" & (...) (20 years ago, 7-Nov-04, to lugnet.robotics.rcx.nqc)
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| | NQC contolling motors
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Hi all, I have some questions about controling RCX motors using NQC. I am using Lego 43362 motors. As I understand it has maximum RPM 219 at 9V In NQC I see that I can st the speed of the motors at 8 different stages. I can not find though how the (...) (20 years ago, 7-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Book reviews of this?
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Does anyone have any experience with this text? (URL) seems like a good text for the basics on up (and the "teaser" looks good), but I'd like to have some first-person accounts. (20 years ago, 7-Nov-04, to lugnet.robotics, lugnet.robotics.rcx.robolab)
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