 | | Re: Sensor Connector
|
|
(...) Actually, you can make a half way decent replica of the Lego two plate high connector at this point quite easily. When you prepare the 2x2 piece of the electric plate, cut the center circular section away from the underneath. Then, solder the (...) (23 years ago, 6-Feb-02, to lugnet.robotics.handyboard)
|
| |
| | Re: Sensor Connector
|
|
I've bought some lego electric plates (part 5037) from lego.com, and they seem to be withstanding the heat of a soldering iorn quite well (that was my fear... that I would turn them into bubbling messes). Actually they're holding up better than the (...) (23 years ago, 6-Feb-02, to lugnet.robotics.handyboard)
|
| |
| | Sensor Connector
|
|
I currently have lego motors and wires that I have used with the RCX but now Im using the Handy Board. The book explains how to connect the motor to the handy board by connecting a wire to a sensor connector but it doesnt state where to get such a (...) (23 years ago, 6-Feb-02, to lugnet.robotics.handyboard)
|
| |
| | Re: Ultrasonic Sensor
|
|
(...) Sound travels on the order of 333m per second, so with the 3ms interval between sensor readings you will get a resolution of 1m. You could try some heavy machine level hackery inside legOS or leJOS to read the sensors in a shorter interval, I (...) (23 years ago, 6-Feb-02, to lugnet.robotics)
|
| |
| | Re: Ultrasonic Sensor
|
|
(...) let (...) Thanks for that Steve. My circuit will be based on the latter of the two possibilities. It is based on a design by RA Penfold from Electronics and Beyond (Sept.2001) so I'm basically doing construction by numbers! However, the thesis (...) (23 years ago, 6-Feb-02, to lugnet.robotics)
|
| |
| | Re: Ultrasonic Sensor
|
|
(...) Yep - I thought so...for things like cameras where these things are in common use, the need is only to know the range to the nearest object. I don't even know if the other things (multiple object detection and size/reflectance estimation) are (...) (23 years ago, 6-Feb-02, to lugnet.robotics)
|
| |
| | Re: Ultrasonic Sensor
|
|
(...) let (...) Thanks for that Steve. My circuit will be based on the latter of the two possibilities. It is based on a design by RA Penfold from Electronics and Beyond (Sept.2001) so I'm basically doing construction by numbers! However, the thesis (...) (23 years ago, 6-Feb-02, to lugnet.robotics)
|
| |
| | Help with Homebrew sensor
|
|
Hi all, my name is Francis (from Spain). I've read Extreme MindStorms and I decided to put my hands on and build some new sensors. I began with the optointerrupter, but have a little trouble. When I connect the sensor to the RCX I can't get a stable (...) (23 years ago, 6-Feb-02, to lugnet.robotics)
|
| |
| | Re: Ultrasonic Sensor
|
|
(...) I guess the first question I'd ask is "What interface does the sensor present to the RCX?" I imagine there are two possibilities: It could be a raw interface that let you send an acoustic "PING" on command and read a voltage back telling you (...) (23 years ago, 6-Feb-02, to lugnet.robotics)
|
| |
| | Real time operating system resources
|
|
Now that my interest has been piqued by the multiplexer problem (and sensing problem in general), what would some of you hardened embedded/real-time system veterans recommend for reading on the subject. Two books that I've found at Amazon.com are (...) (23 years ago, 6-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Ultrasonic Sensor
|
|
Hello all. This topic might be a bit old hat for some of you, but as a relative newbie to the world of Mindstorms, I'm posting in the appeal for any information on Ultrasonic Sensors. The brief of my honours project was to design and build one such (...) (23 years ago, 6-Feb-02, to lugnet.robotics)
|
| |
| | Re: Power to RCX
|
|
Success! It works now, and gives 9.2 volts according to the RIS software. You were right, I did have it backwards. Thanks. (...) (23 years ago, 5-Feb-02, to lugnet.robotics.rcx)
|
| |
| | Re: multiplexor and legOS
|
|
(...) I'm just checking this thing out. You can look at: (URL) more information. Unfortunately, I got the .ps description file but not the source code patch file. A mail asking for it is on it's way ;) Mike (23 years ago, 5-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: multiplexor and legOS
|
|
(...) Actually, something like this has been documented and done by Pedersen, Christensen, Rasmussen ("Prioritized Interrupts in LegOS"). They actually document the problem of sensor misses related to task management, significantly reducing the (...) (23 years ago, 5-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Running Vision Command on XP
|
|
(...) I now have Studios up and running within XP. I had to download a new driver from the Logitech site for the camera and then it was just a case of setting the compatibility option for Lego Studios so that it thinks it is still running in Win (...) (23 years ago, 5-Feb-02, to lugnet.robotics.vc)
|
| |
| | Re: multiplexor and legOS
|
|
(...) Most people's legOS kernels will be compiled so msleep uses wait_event. I haven't looked at the code, but my understanding of how wait_event works is that whenever that thread becomes eligible to execute, your even function is called. (...) (23 years ago, 5-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: multiplexor and legOS
|
|
Try the following code fragments. [Change to fixed spacing font so that it reads easily.] You should be able to find what you need. "Mark Falco" <> wrote in message news:Gr1MBL.Dop@lugnet.com... (...) <<..snip..>> (...) These are code fragment for (...) (23 years ago, 5-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: multiplexor and legOS
|
|
Ok, my last port didn't make much sense let me try that again. for an active sensor ds_handler will periodically power the sensor off to read the value. The standard firmware does this to but at a different interval. I'm wondering if this is part of (...) (23 years ago, 5-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: multiplexor and legOS
|
|
Since I'm now fairly sure that i've got the timing taken care of I'm wondering if the power cycling that ds_handler does is somehow causing the problem? I thought I might take control of this stuff in my test code. I assume if I set the sensor for (...) (23 years ago, 5-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: multiplexor and legOS
|
|
(...) It looks like the semaphore task_sm should prevent another task from being scheduled if I hold it for the length of the train. I've now tried this as well as incresing the timeslice to 100ms. It looks better but still is not consistent. Since (...) (23 years ago, 5-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Motorized landing gear question
|
|
(...) (These are identical to Mindstorms motors - right? Certainly the motors *I* picked up from Znaps sets are indistinguishable from Mindstorms motors ...I don't think they ever shipped a different one with Znaps.) (...) Well, the worm gear should (...) (23 years ago, 5-Feb-02, to lugnet.robotics)
|
| |
| | Re: Motorized landing gear question
|
|
(...) I'd suggest it's not necessary for the landing gear to lift the craft - just to hold it up. If it's only operated while there's no weight on the craft, it becomes much easier, you only need some kind of locking mechanism so the motor isn't (...) (23 years ago, 5-Feb-02, to lugnet.technic, lugnet.robotics, lugnet.space, lugnet.znap)
|
| |
| | Re: multiplexor and legOS
|
|
(...) Not bad. But as you say, still vulnerable to the task switching problem. (...) Instead of resorting to that, maybe there is a way to freeze task switching during critical operations. When I owned and programmed the AmigaOS (don't laugh :), (...) (23 years ago, 5-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Motorized landing gear question
|
|
I've been pondering using one of the Znap motors to power a landing gear mechanism strong enough to at least hold, if not lift a decent sized space craft (including the motor and battery box- if possible) Any ideas? I was thinking worm gear and some (...) (23 years ago, 5-Feb-02, to lugnet.technic, lugnet.robotics, lugnet.space, lugnet.znap)
|
| |
| | Re: multiplexor and legOS
|
|
#include <sys/time.h> void systime_set_timeslice (unsigned char slice); include/sys/time.h:43-45: #ifdef CONF_TM #define TM_DEFAULT_SLICE 20 file://!< default multitasking timeslice #endif hope that helps, Albert "Michael J Ash" (...) (23 years ago, 4-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: multiplexor and legOS
|
|
(...) I agree about the cause for the msleep granularity, I'd seen the same stuff in tm and assumed that would cause the problem. Sorry my last note was a little unclear, I tried msleep and delay but am now using my own function which seems to (...) (23 years ago, 4-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Secondary Education Robotics
|
|
(...) Hi, have a look at (URL) is more than two years of work with secundary students. Claude Baumann (23 years ago, 4-Feb-02, to lugnet.robotics.edu)
|
| |
| | Re: multiplexor and legOS
|
|
(...) I don't know about this 20ms granularity and how delay() is going to be any better. Here's the code for each function: //! delay execution allowing other tasks to run. /*! \param msec sleep duration in milliseconds \return number of (...) (23 years ago, 4-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Secondary Education Robotics
|
|
Hi, I'm part of a university group trying to compile a list of ways that robotics are being used in high school classrooms. If you are a person involved with the use of robotics in high school science, math, and technology courses, and are (...) (23 years ago, 4-Feb-02, to lugnet.robotics.edu)
|
| |
| | Re: multiplexor and legOS
|
|
(...) Thanks, I'd suspected that msleep might not be very accurate but never considered that it's true granularity could be so large. I did a quick test with my current configuration and when I asked msleep to sleep for 12ms it slept for 20. This (...) (23 years ago, 4-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Question?
|
|
(...) No, there's no bridge in the RCX, just a pull-up to 5V (10kOhm IIRC). If you look at the schematics (say at (URL) see that there is another bridge rectifier in the sensor between ground and the raw sensor output. The ground half of the bridge (...) (23 years ago, 4-Feb-02, to lugnet.robotics)
|
| |
| | Re: true tcp/ip on the RCX
|
|
(...) The C64 server survived the "Slashdot attack" without problems, even though it served tenths of thousands of pages over a period of only a few hours. Since it is configured to allow only 10 simultaneous connections, it could more or less serve (...) (23 years ago, 4-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: JAVA for 9751 Lego interface - SOS
|
|
(...) It seems this thing connects to a serial port. So you need a Java interface to the serial port like rcxcomm, and you need to write a few classes that talk to the thing (see (URL) would be nice to have some common abstractions of the RCX (...) (23 years ago, 3-Feb-02, to lugnet.robotics)
|
| |
| | Re: multiplexor and legOS
|
|
(...) Don't ask me for a cite, but I seem to remember something about msleep only having 20ms granularity. If that's the case, your msleep(10) is either not sleeping at all or is sleeping 20ms, either one of which could cause problems. I'd suggest (...) (23 years ago, 4-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Question?
|
|
(...) My guess (having never looked at the schematics, or taken one apart) is that when connected backwards, "dark" would be 0V and "light" would be -8V. Again, a simple bridge rectifier (this time in the RCX) would get it sorted out. It might be (...) (23 years ago, 4-Feb-02, to lugnet.robotics)
|
| |
| | Re: Question?
|
|
(...) What I don't understand is how this works if the sensor is connected backwards. Sure, a bridge rectifier will get the power sorted out but how does the sensor send back a voltage in the right range? If say "light" is 8V and "dark" is 0V then (...) (23 years ago, 3-Feb-02, to lugnet.robotics)
|
| |
| | Re: multiplexor and legOS
|
|
well anyone who looked at the code I attached may have notcied that I had one of the msleeps commented out. Oops, with this now uncommented I at least see the second and third light sensors pulse on, but only for an extremely short time. Suring the (...) (23 years ago, 3-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | This week in Robotics:
|
|
THIS WEEK IN ROBOTICS: Here is a calendar of events coming up this week - February 2rd - 9th, 2002. Details are on our web site at (URL) you know of an upcoming event of have a robotics club or organization, please drop us a note at (...) (24 years ago, 3-Feb-02, to lugnet.robotics)
|
| |
| | Re: Power to RCX
|
|
Regarding the data sheet for the Melexis MLX1040B that everyone is talking about, and which I've been looking for for years.... This link: (...) (URL) comes back as NOT FOUND The fact that some people are claiming to have seen it implies that it was (...) (24 years ago, 3-Feb-02, to lugnet.robotics.rcx)
|
| |
| | Vision Command $29.99 @KB Toys online
|
|
FYI - at least their markdowns are sometimes worthwhile. This was online through what used to be eToys - any KB toys should work. Almost as cheap as the eToys markdowns. There's still the Windows 98 requirement but...... (24 years ago, 2-Feb-02, to lugnet.market.shopping, lugnet.robotics)
|
| |
| | multiplexor and legOS
|
|
Does anyone have expierence using the active multiplexor sold by www.mindsensors.com with legOS? If you are not farmiluar with this multiplexor it is really cool as it lets you multiplex three active sensors on one port. You tell the mux which "sub" (...) (24 years ago, 2-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: "Servo" Driver for NQC
|
|
(...) That was explained earlier. They are using an 8 bit number to store the *pattern* of the modulation. With 8 bits, there are only 8 different ratios of 1's to 0's - and one of those is to have no power at all. Hence there are seven power (...) (24 years ago, 2-Feb-02, to lugnet.robotics)
|
| |
| | Re: "Local Positioning System" for lego-vehicles with mice
|
|
Hi, if you are interested : sources now available (URL) (24 years ago, 2-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | LNP + USB under windows
|
|
Hi, has anybody experience in communicating with the RCX over USB (Windows)? So far I managed to get legOS working with the USB-patch from Jin Sato; then I tried to use winLNP, but it didn't work (the light in the tower is not blinking) Now I'm (...) (24 years ago, 1-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: true tcp/ip on the RCX
|
|
Ok, the website is up at: (URL) Christ (24 years ago, 2-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Power to RCX
|
|
"Matthias Jetleb" <Jetleb@Netcom.ca> wrote in message news:3c5b6892.134862...net.com... [snip] (...) Check out this timely post: (URL) this is indeed the same part, then it looks like 12V is the max. (Figure 1 of the datasheet is a little confusing, (...) (24 years ago, 2-Feb-02, to lugnet.robotics.rcx)
|
| |
| | Re: Power to RCX
|
|
I investigated this issue a while back an have taken apart all four of my RCX's (1.0 w. adapter, 1.0 w/o adapter, and 2 2.0's from an RIS1.5 and and RIS2.0). They all have internal voltage regulators. I've written the number down somewhere on this (...) (24 years ago, 2-Feb-02, to lugnet.robotics.rcx)
|
| |
| | Re: Question?
|
|
The three main outputs are Pulse Width Modulated. These are generally used for motors, but work for lights as well. The three main "inputs" can use "active" sensors that require power and can therefore be considered as outputs in their own right (...) (24 years ago, 2-Feb-02, to lugnet.robotics)
|
| |
| | Re: Constructopedia replacement
|
|
I bought an all German RIS2.0 at the Sears Clearance Center in Brampton a few weeks ago (how it ever landed in Canada, I'll never know). Anyway, I asked Lego for replacement manuals an received them within a week, no questions (or proof) asked. (...) (24 years ago, 2-Feb-02, to lugnet.robotics)
|
| |
| | Re: "Servo" Driver for NQC
|
|
(...) Yes, but only one of 8 settings (why not all 256??? I don't understand why they limited this). Sometimes only 8 settings doesn't give you enough finesse. Matthias Jetleb (24 years ago, 2-Feb-02, to lugnet.robotics)
|
| |
| | Re: Power to RCX
|
|
(...) Oops, me bad, I meant 7809. BTW, here are some links to online data sheets for that type of regulator: (URL) (24 years ago, 2-Feb-02, to lugnet.robotics.rcx)
|
| |
| | Re: Power to RCX
|
|
Hi Trevyn, From the photo you posted, it appears that you have the input and output pins of the 7805 reversed. According to the datasheet, this will probably fry the regulator. I'd recommend getting a new part before continuing, so as not to risk (...) (24 years ago, 2-Feb-02, to lugnet.robotics.rcx)
|
| |
| | Re: IP on Mindstorms
|
|
I just saw Styx-in-a-brick at Linuxworld. (Styx is the distributed file system component of Inferno and fits into 17k.) The RCX was built into a clock (time display device) and was keeping in sync with the host machine via infrared. On the host (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Re: true tcp/ip on the RCX
|
|
Cool stuff, congrats on the Slashdot recognition. Hope the "Slashdot Effect" didn't totally cripple your server. Wondering if you or Olaf could make the LegOS code available for all to see, just wondering how it was all done for educational purposes (...) (24 years ago, 1-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: true tcp/ip on the RCX
|
|
(...) [...] (...) A few days ago, Olaf sent me his legOS TCP/IP code which I have been running a few days, so I probably have the world's second TCP/IP-enabled Lego brick in my office :-) ! I was also able to squeeze in a simple web server, a few (...) (24 years ago, 1-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Robotic DAT Tape Loader
|
|
I already fixed it. go to (URL) fixed the site without itools. But the images are still big. I will fix them tonight. Sorry for the problems. Stupid iTools. Bad Apple no cookie. Shawn (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Re: Robotic DAT Tape Loader
|
|
(...) No it's not cool. The images won't load at all. It doesn't have anything to do with waiting. When I click the link it tries to do something with JavaScript which doesn't work. Can you fix it so the links just go straight to the images and (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Re: Question?
|
|
What do you mean? Motor speed is controlled through Pulse Width Modulation, if that helps... (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Re: Micromouse Robotic Competition, Could RCX do this?
|
|
(...) Taking a look at the rules, there doesn't seem to be any penalty for touching the walls, so I dont see why you couldn't use a single RXC with 2 motors and 3 (or 4) touch sensors: left, front, right (back). These can be multiplexed onto a (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Motor Drivers for higher voltages
|
|
I was looking for the data sheet for the Melexis 10402 motor driver IC, the one in the RCX. It is no longer on their website. I eventually found it, and have posted it here: (URL) want to drive 24V motors and use the RCX to control them. Ideally I (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Re: Robotic DAT Tape Loader
|
|
(...) Store the CDs on edge, and then use something that can fit inside the central hole, but expand/contract to allow rotation and drop. (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Re: Robotic DAT Tape Loader
|
|
In lugnet.robotics, Thorkild Stray <thorkild@ifi.uio.no> writes: [snip] (...) The little suction cup thingys that I seem to recall from 6180 ? Ray (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Question?
|
|
Hi every one: I was wondering, What type of output is generated by the rcx? Thanks a lot Alexis Rojas National Robotics Engineering Consortium The Robotics Institute Carnegie Mellon University Ten 40 th Street Pittsburgh, PA 15201 Phone: (412) (...) (24 years ago, 31-Jan-02, to lugnet.robotics)
|
| |
| | Re: Micromouse Robotic Competition, Could RCX do this?
|
|
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hey, Sounds kewl... ...I would probably try and implement it with a 2 RCX, 1 Scout system. Scout and RCX for sensor and motor controls, RCX for Datalogging and adding to the learning of the robot. Should (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Southern Ohio Competitions ?
|
|
Are there any Lego Robotics competitions in the Cincinnati OH/Northern Kentucky (USA) area? Thanks, Bill (24 years ago, 31-Jan-02, to lugnet.robotics)
|
| |
| | Micromouse Robotic Competition, Could RCX do this?
|
|
I recently stumbled across a reference to the Micromouse Robotics competition and thought others in the group might find it interesting. It looks like something that would be [barely] achieveable with a Mindstorms implementation. APEC [Applied Power (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Re: Robotic DAT Tape Loader
|
|
(...) That's the iTools automatic photo album feature...it's quite cool, but it might take a minute for the large images to load. Even on my 800k connection it takes a bit for the images to load. I like the idea of an auto CD loader though...I've (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | JAVA for 9751 Lego interface - SOS
|
|
hello all, Q. Does anyone know of a JAVA version for the 9751 controller - i would be so happy! I am currently using the older version of the Lego Dacta Control interface - 9751 (interface 70909 - stamped underneath unit itself - the one with 8 (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
|
| |
| | Re: Robotic DAT Tape Loader
|
|
(...) Same here, but I got the pictures if I went directly to for example: (URL) If I could only find a good solution for picking up CDs, I could use some of the ideas from this to finish my "mp3-all-of-my-cd-co...on"-robot. (24 years ago, 30-Jan-02, to lugnet.robotics)
|
| |
| | Re: Firmware RIS2.0 Linux
|
|
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, 1). If the firmware file is located in a WinZip archive, you can just use the "unzip" command under Linux. You can also mount a Windows CD-Rom in Linux and look browse it like a normal filesystem. (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | bigger bots
|
|
hi all, i am new to this newsgroup but have been monitoring lugnet posts for a while now. i was just wondering if anybody has ever used the rcx as a main brain to control bigger non-lego motors using opto-isolators and separate battery/power supply? (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Re: Power to RCX
|
|
Most "wall wart" transformers give about 3-5 volts above what is marked on them. I would not use one of these directly. However, I am currently working on using a 7809 voltage regulator. If you don't know, a voltage regulator is a small electronic (...) (24 years ago, 1-Feb-02, to lugnet.robotics.rcx)
|
| |
| | Re: "Servo" Driver for NQC
|
|
"Dick Swan" <dickswan@sbcglobal.net> wrote in message news:GqsAv4.GL1@lugnet.com... (...) <snip> Dick, let me first say thank you for the post. I've implemented some of your suggestions and my robot has gone from unuseable to operating as I had (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
|
| |
| | Power to RCX
|
|
Hi all, I just got my new RIS Ver.#2, and I am far from being an electronic expert. I am wondering if a proper wall tranformer with an adapter inside the RCX to connect to the battery terminals would work for stationary application. Of course, I do (...) (24 years ago, 1-Feb-02, to lugnet.robotics.rcx)
|
| |
| | "Local Positioning System" for lego-vehicles with mice
|
|
Hello NG, i try to develop something like a local position system with a optical RF mouse (or other mouse-devices). If someone want to join or help for this little project please mail me. A very first result you can see at (URL) (24 years ago, 1-Feb-02, to lugnet.robotics.rcx.legos)
|
| |
| | Premature announcement of Interactive C 4.0
|
|
Actually, Fred's announcement is a little premature, sorry. Several important things to know if you do choose to download the current version of IC: 1) The libraries are tuned for the Botball contest (www.botball.org) and by default include a (...) (24 years ago, 29-Jan-02, to lugnet.robotics.handyboard)
|
| |
| | Re: Downloading Firmware
|
|
(...) I have an E-machine that uses Windows 98. Mark (24 years ago, 31-Jan-02, to lugnet.robotics.rcx)
|
| |
| | Firmware RIS2.0 Linux
|
|
I recently bought RIS 2.0 with the idea to use NQC on my Linux computer. Yesterday I tried to locate the firmware from the CD-ROM that comes with the box, but I could not find the firmxxx.lgo file. Can I extract the firmware from the CD-ROM under (...) (24 years ago, 31-Jan-02, to lugnet.robotics)
|
| |
| | Re: Downloading Firmware
|
|
(...) Maybe, but I'd rather incriminate motherboard/OS/USB drivers. What do you use ? Philo www.philohome.com (24 years ago, 31-Jan-02, to lugnet.robotics.rcx)
|
| |
| | Integer-based arctangent2 function for anyone interested
|
|
After scouring the internet for several days and even utilizing Jack Crenshaw's wonderful book "Math Toolkit for Real-time Programming", I was unable to find a good, general iatan2(y,x) function. Note that this is the atan function that takes as (...) (24 years ago, 31-Jan-02, to lugnet.robotics.rcx.legos)
|
| |
| | Downloading Firmware
|
|
I am trying to download the firmware to the ris 1.0 & 2.0 using the usb tower but it won't finish, the rcx only counts to 200-300 & is different all the time. then it says the tower is disconnected, when i didn't even touch it. BUT the serial tower (...) (24 years ago, 31-Jan-02, to lugnet.robotics.rcx)
|
| |
| | Constructopedia replacement
|
|
Hi, I have a RIS 2.0 and I got my Constructopedia book damaged. I know I can get replacements from Lego. I sent them a message but I would like to know if anyone has had any experience with that. I mean, will they send it ? If not, could anyone tell (...) (24 years ago, 31-Jan-02, to lugnet.robotics)
|
| |
| | Errors compiling egcs
|
|
Hi, I've just downloaded and attempted to install the binutils, egcs, and LegOs on my computer as per the instructions at (URL) only difference between these instructions and what I have done is the path to where the software is to be installed. (...) (24 years ago, 31-Jan-02, to lugnet.robotics.rcx.legos)
|
| |
| | Re: "Servo" Driver for NQC
|
|
<snip> (...) <snip> (...) Really good post! Just a loose end: If you press the 'stop' button on the RCX while a motor is running the motor stops in the 'brake' condition. If you connect a spare motor to a gray battery box with the switch in a (...) (24 years ago, 31-Jan-02, to lugnet.robotics)
|
| |
| | Re: which Linux distro?
|
|
(...) Good Idea ! I had no problem using legOS when using a RedHat 7.1, Mandrake8 or a Conectiva 6.0, As far as I remember, there is a Debian package available for legOS. So... no matter which distribution you'll use, it will be far better than (...) (24 years ago, 31-Jan-02, to lugnet.robotics.rcx.legos)
|
| |
| | Quick Mindstorms article in DNJ Jan/Feb 2002
|
|
Just received my copy of DNJ (Developer Network Journal) and on page 53 (the Backend section) there is a sidebar talking about Mindstorms. Half talks about the competition they ran in Mar/Apr 2000 and what the Mindstorms set can do, and the other (...) (24 years ago, 31-Jan-02, to lugnet.robotics)
|
| |
| | Re: Control the RCX from AppleScript
|
|
(...) Ahah! Check out the following SourceForge projects - still sadly in the VERY early stages! - for some potentially good news: (URL) too have USB devices that have been rendered useless by OS X and companies not wanting to bother upgrading (...) (24 years ago, 31-Jan-02, to lugnet.robotics.rcx.nqc)
|
| |
| | which Linux distro?
|
|
Hi, I am thinking of moving over to Linux, partly for legOS reasons (Lnp easier to set up for a start), but partly for other reasons (free software, morality etc, ie the usual waffle.) I am considering Redhat 7.2, Suse 7.3 personal or Suse 7.3 (...) (24 years ago, 31-Jan-02, to lugnet.robotics.rcx.legos)
|
| |
| | Bulk parts
|
|
FYI PITSCO has expanded their parts offerings in their new catalog - the web site does not seem to have been upgraded to match the catalog yet. Some backordered, but hey, I really need some 40 nd 24 tooth gears, not to mention a ton more pulleys. (...) (24 years ago, 31-Jan-02, to lugnet.robotics)
|
| |
| | Re: Interactive C Version 4 is available for free download
|
|
Hi everyone, Randy sent me the enclosed msg which answers some of Scott's questions. Or at least, indicates they will be answered. I'd suggest we wait for Randy to update things as he indicates he will, and then later fire away with questions to (...) (24 years ago, 31-Jan-02, to lugnet.robotics.handyboard)
|
| |
| | Re: Interactive C Version 4 is available for free download
|
|
(...) To answer my own question, look in ./Interactive C 4.0/RCX/lib_rcx.doc for a list of RCX specific functions. To summarize the important ones: IC NQC ---...--- fd(A/B/C) OnFwd() bk(A/B/C) OnRev() brake(A/B/C) Off() off(A/B/C) Float() (...) (24 years ago, 31-Jan-02, to lugnet.robotics.handyboard)
|
| |
| | Re: External motor power and expansion board combo problem?
|
|
Duncan, You've done a good analysis of the potential impact of changing the motor supply to an external source....when you are using the Expansion Board. Undoubtedly there are several ways to accomplish what you want, but the way I did it DOES (...) (24 years ago, 31-Jan-02, to lugnet.robotics.handyboard)
|
| |
| | Re: Interactive C Version 4 is available for free download
|
|
Hi Fred Is there a summary of the new features developed in IC 4 ? From the Newton Labs IC 3.x page they list the improvements over the freeware (2.x) version as: (...) Does the 4.x pcode support structs/multidimensional arrays ? What extras does (...) (24 years ago, 31-Jan-02, to lugnet.robotics.handyboard)
|
| |
| | Re: "Servo" Driver for NQC
|
|
This is a long post. It covers the following: 1. How the "WAIT x 10 msec" opcode is implemented and its inherent inaccuracy for low delays. And suggests an alternative code implementation 2. How RCX motor PWM is implemented. And the implication that (...) (24 years ago, 31-Jan-02, to lugnet.robotics)
|
| |
| | Re: Interactive C Version 4 is available for free download
|
|
(...) I started playing with this on the RCX last night. Is there a README somewhere on the RCX-specific aspects of the firmware? eg I noticed analog() isn't supported to read raw sensor readings, although digital() works to read passive touch (...) (24 years ago, 31-Jan-02, to lugnet.robotics.handyboard)
|
| |
| | Re: "Servo" Driver for NQC
|
|
"Matthias Jetleb" <Jetleb@Netcom.ca> wrote in message news:3c5763f6.195969...net.com... (...) Ooooooooo, someone else is actually NOT doing a gantry? ;) (...) The mass is at a minumum, but due to the size fo the robot to get the required work (...) (24 years ago, 30-Jan-02, to lugnet.robotics, lugnet.org.ca.rtltoronto)
|
| |
| | Re: "Servo" Driver for NQC
|
|
"Steve Baker" <lego-robotics@crynwr.com> wrote in message news:3C56F4B7.FC698E...ail.net... (...) Then why doesn't it work? :-/ At lower power settings, all it seems to do is sit there and humm, not wanting to go. It really dosen't work that well in (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
|
| |
| | Re: IP on Mindstorms
|
|
(...) It's still on /. It's worth mentioning that this isn't the first stack. The Inferno Styx-in-a-Brick has been around a year or so. (URL) -- ___...___ Day by day the Penguins are making me lose my mind. Bumper Sticker The Armadillo Group (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
|
| |
| | Re: Control the RCX from AppleScript
|
|
Sorry for the quick updates, but Robot Controller 1.4b2 is now available! This adds the ability to control several motors simultaneously in AppleScript. I have also posted an example AppleScript Studio project which uses Robot Controller to drive a (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.nqc)
|
| |
| | Re: Running Vision Command on XP
|
|
Great work, Ted. Do you think a similar hack could make Lego Studios run under XP? Anyway, this workaround just underlines the poor, poor support from Lego. The VC/Studios support sites does not even mention XP! Wake up, Lego! A company thats says (...) (24 years ago, 30-Jan-02, to lugnet.robotics.vc)
|
