 | | multiplexor and legOS
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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)
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| | Re: "Servo" Driver for NQC
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(...) 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)
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| | Re: "Local Positioning System" for lego-vehicles with mice
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Hi, if you are interested : sources now available (URL) (24 years ago, 2-Feb-02, to lugnet.robotics.rcx.legos)
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| | LNP + USB under windows
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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)
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| | Re: true tcp/ip on the RCX
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Ok, the website is up at: (URL) Christ (24 years ago, 2-Feb-02, to lugnet.robotics.rcx.legos)
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| | Re: Power to RCX
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"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)
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| | Re: Power to RCX
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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)
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| | Re: Question?
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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)
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| | Re: Constructopedia replacement
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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)
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| | Re: "Servo" Driver for NQC
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(...) 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)
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| | Re: Power to RCX
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(...) 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)
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| | Re: Power to RCX
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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)
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| | Re: IP on Mindstorms
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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)
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| | Re: true tcp/ip on the RCX
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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)
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| | Re: true tcp/ip on the RCX
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(...) [...] (...) 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)
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| | Re: Robotic DAT Tape Loader
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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)
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| | Re: Robotic DAT Tape Loader
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(...) 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)
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| | Re: Question?
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What do you mean? Motor speed is controlled through Pulse Width Modulation, if that helps... (...) (24 years ago, 1-Feb-02, to lugnet.robotics)
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| | Re: Micromouse Robotic Competition, Could RCX do this?
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(...) 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)
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| | Motor Drivers for higher voltages
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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)
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| | Re: Robotic DAT Tape Loader
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(...) 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)
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| | Re: Robotic DAT Tape Loader
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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)
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| | Question?
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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)
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| | Re: Micromouse Robotic Competition, Could RCX do this?
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-----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)
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| | Southern Ohio Competitions ?
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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)
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| |
| | Micromouse Robotic Competition, Could RCX do this?
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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)
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| |
| | Re: Robotic DAT Tape Loader
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(...) 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)
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| | JAVA for 9751 Lego interface - SOS
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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)
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| | Re: Robotic DAT Tape Loader
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(...) 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)
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| | Re: Firmware RIS2.0 Linux
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-----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)
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| | bigger bots
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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)
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| | Re: Power to RCX
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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)
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| | Re: "Servo" Driver for NQC
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|
"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)
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| | Power to RCX
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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)
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| | "Local Positioning System" for lego-vehicles with mice
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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)
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| | Premature announcement of Interactive C 4.0
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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)
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| | Re: Downloading Firmware
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(...) I have an E-machine that uses Windows 98. Mark (24 years ago, 31-Jan-02, to lugnet.robotics.rcx)
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| | Firmware RIS2.0 Linux
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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)
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| | Re: Downloading Firmware
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(...) 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)
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| | Integer-based arctangent2 function for anyone interested
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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)
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| | Downloading Firmware
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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)
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| | Constructopedia replacement
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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)
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| | Errors compiling egcs
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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)
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| | Re: "Servo" Driver for NQC
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<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)
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| | Re: which Linux distro?
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(...) 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)
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| |
| | Quick Mindstorms article in DNJ Jan/Feb 2002
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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)
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| | Re: Control the RCX from AppleScript
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|
(...) 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)
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| | which Linux distro?
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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)
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| | Bulk parts
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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)
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| | Re: Interactive C Version 4 is available for free download
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|
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)
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| | Re: Interactive C Version 4 is available for free download
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(...) 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)
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| |
| | Re: External motor power and expansion board combo problem?
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|
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)
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| | Re: Interactive C Version 4 is available for free download
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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)
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| | Re: "Servo" Driver for NQC
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|
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)
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| | Re: Interactive C Version 4 is available for free download
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|
(...) 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)
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| |
| | Re: "Servo" Driver for NQC
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|
"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)
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| |
| | Re: "Servo" Driver for NQC
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|
"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)
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| | Re: IP on Mindstorms
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|
(...) 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)
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| | Re: Control the RCX from AppleScript
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|
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)
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| | Re: Running Vision Command on XP
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|
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)
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| | Re: "Servo" Driver for NQC
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|
The ON/OFF bang-bang control you are trying has some problems that proportional control does not. While it is true that if the update rate is high enough, or the controlled plant damped enough, that switching a drive ON and OFF can simulate (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| | Re: Incorrect result
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|
(...) Yes, this is what happens when one is used to just making everything long and not considering overflows. Even worse was that I was doing the math on the computer's calculator, but not looking at the intermediate result, just typing in the (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
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| |
| | Re: BricxCC release 3.3.3.4
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|
hi Guido, I just a very little time also the comming week, but my first impression is very good !! Thanks very much. And you said you weren't a fast programmer ;-) (...) It sound great indeed. (...) I couldn't get it to work, but maybe I did (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.nqc)
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| | Re: Incorrect result
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|
(...) 256 * 128 = 32768, one higher as the biggest positive integer value. The cast to long would help, but your cast is too late. I have not tested, but I think rc += ( (long)b->magnitude * (long)TA_costable[...] ) >> 7; will help. Try output in (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
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| | RE: Incorrect result
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|
<snipped code> (...) Robert, this is a classic problem with ranges of singed numbers in C rx = (long)(a->magnitude * TA_costable[a->direction]) >> 7; I don't have an RCX in frot of me, but I think you need to cast a->magnitude to long before the (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
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| |
| | Incorrect result
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|
This problem, unlike the other, is definitely not a result of my eyes/brain being tired or something. I thoroughly displayed every value before and after evaluation and the result is ***WRONG***. Here is the code and the values: typedef struct { int (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
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| | Re: "Servo" Driver for NQC
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|
(...) <snip> (...) Right, but in the firmware PWM, it is 'on-float-on-float' not 'on-brake-on-brake' I think (but I'm not sure). In fact, the 'on-brake-on-brake' is a neat way to get fine control to (say) just crack a pneumatic valve to move a (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| |
| | RE: true tcp/ip on the RCX
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|
Hi :) Just out of curiosity, check this thread from Jan/2000: (URL) mc. (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
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| |
| | RE: IP on Mindstorms
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|
FOUND IT ! -> (URL) was 2 years ago, 3-Jan-00 ! :) phew... mc. (...) (URL) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| |
| | RE: IP on Mindstorms
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|
Check (URL) was posted on the legOS list. mc. PS: I was under the impression that a few years ago (one,two?) someone here did a HTTP server with a RCX. I just can't find info about it anymore :/ (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| |
| | Re: IP on Mindstorms
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|
(...) See this thread: (URL) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| |
| | Re: true tcp/ip on the RCX
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|
(...) <snip> (...) <snip> Yeah, I've got a server farm of 3 million RCXs. Each hosts errrrr... 1 page. ;-) Great job Olaf! Steve Martin IndyLUG (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
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| | IP on Mindstorms
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|
SlashDot yesterday had a story on someone putting an IP stack into the RCX. I expected to read about it here, but don't see anything. Does anyone have the story? --Jack Gregory (24 years ago, 30-Jan-02, to lugnet.robotics)
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| |
| | Re: "Servo" Driver for NQC
|
|
"Steve Baker" <lego-robotics@crynwr.com> wrote in message news:3C56E677.33FD99...ail.net... (...) Floating (...) if (...) I cannot gear it differently - the geartrain is optimized for the correct speed I must achieve. Float doesn't work because of (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| |
| | Re: true tcp/ip on the RCX
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|
"Olaf" <christ_o@gmx.de> schrieb im Newsbeitrag news:Gqo0BH.E9t@lugnet.com... (...) calls (...) <---snip----> Hi Olaf, i think it´s the wrong way to blow up the legOS kernel with a ip-stack, because you lost valuable RCX memory to legOS (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
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| |
| | Re: Control the RCX from AppleScript
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|
The lego camera will not work with imovie, I'm afraid. Imovie only works with DVcameras, not with webcams. I think the lego camera is actually one of the logitech cameras inside, so there may be a MacOS 9 driver, but not a MacOS X driver. I don't (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.nqc)
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| | External motor power and expansion board combo problem?
|
|
I wish to make the small mod to allow for external power to the motor outputs of the main board. However, this seems to cause several potential problems with the expansion board. First, the motor power connector is occupied by the motor power (...) (24 years ago, 30-Jan-02, to lugnet.robotics.handyboard)
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| |
| | Re: Lego Studios Cam and Macintosh
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(...) I tried the Philips driver back when I hunted down drivers to make it work. Multiple drivers were tried, but nothing worked. I'll put a list together before BW and someone else can benefit from the info in the future. I'd try iMovie if I had (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| | Re: Lego Studios Cam and Macintosh
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(...) Did you try that Philips driver referenced in Barney's post? What about the iMovie thing? Matt (24 years ago, 30-Jan-02, to lugnet.robotics)
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| | Re: Lego Studios Cam and Macintosh
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(...) You got it, Matt! The camera will go to BricksWest. We'll test it out on site. If you or anyone else has any more ideas on how to get this to work, I'm still open to suggestions, but so far I haven't located drivers that would allow it to work (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| | Re: "Servo" Driver for NQC
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(...) But it doesn't need to. The 'power' settings built into the RCX firmware are already using pulse-width modulation to adjust the amount of power the motor delivers. ---...--- Steve Baker ---...--- Mail : <sjbaker1@airmail.net> WorkMail: (...) (24 years ago, 29-Jan-02, to lugnet.robotics)
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| | Re: Using un`Lego sensors
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(...) The trouble with this (I suppose) is that the precision of the A-to-D convertor in the RCX is going sharply limit the angular precision when that number range is 'stretched' over ten revolutions. I've seen the devices you talk about though - (...) (24 years ago, 29-Jan-02, to lugnet.robotics)
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| | Re: "Servo" Driver for NQC
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(...) I have to disagree with your approach. Even at low speeds, alternating between pushing on the gas and stamping on the brake isn't the way to drive smoothly. Perhaps you need to gear the machine differently and use less power during the ON (...) (24 years ago, 29-Jan-02, to lugnet.robotics)
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| | Re: Lego Studios Cam and Macintosh
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(...) Here's a follow-up to this issue, from a thread in .robotics: (URL) anyone, post if you get this thing to work, as I am still interested in the camera myself if we can get it to work... And has anyone tried my iMovie idea? If no one is capable (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| | Re: Control the RCX from AppleScript
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(...) Well, that helps some anyway...I'll cross post your info into the thread where we were last talking about this...I'm still waiting to see if anyone has tried opening iMovie with the LEGO camera plugged in, to see if will auto-recognize it...no (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.nqc)
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| | Re: "Servo" Driver for NQC
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(...) Well I haven't seen your version of the Project-X design, but I'll assume it's similar (albeit vastly inferior) to the one I'm entering. I'm assuming that for the sake of speed, you are keeping moving mass to a minimum and hence, not loading (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| | Re: Using un`Lego sensors
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(...) For what it's worth, there is another type of high-accuracy potentiometer which is used primarily in instrumentation. They are usually used with vernier dials to set accurate values. Their advantage is that, unlike most basic, common (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| | Re: Robotic DAT Tape Loader
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(...) JavaScripty thing. (24 years ago, 30-Jan-02, to lugnet.robotics)
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| | Robotic DAT Tape Loader
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Hello all, After alot of work and even more procrastination I have gotten around to documenting the Lego DAT Tape Loader. I used one RCX, Two standard moters, one micro moter, two rotation sensors, and one touch sensor. Here are some pictures: (URL) (...) (24 years ago, 30-Jan-02, to lugnet.robotics)
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| | Re: true tcp/ip on the RCX
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<Mr Burn's> Excellent!!! I've seen some neat ideas but, this one takes the cake hands down.... Especially that it also appeared on www.slashdot.org makes it even more impressive.. Bravo to you.. Can't wait to see the webpage.. Wayne (...) (24 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
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| | Re: true tcp/ip on the RCX
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I will be axiously awaiting the web page too! This has many fun/useless possibilities! Email it to me or post it on this thread if you can. thanks nate www.nullgel.com (24 years ago, 29-Jan-02, to lugnet.robotics.rcx.legos)
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| | Re: "Servo" Driver for NQC
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"Stephen Edwards" <lego-robotics@crynwr.com> wrote in message news:3C56AA4F.409050....vt.edu... (...) wait (...) Nope, I'm using Off, because I need to brake the motor to pulse it. Floating it does almost nothing - the inertia of the motor carries (...) (24 years ago, 29-Jan-02, to lugnet.robotics)
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| | Re: Control the RCX from AppleScript
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Hi Matt VideoScript is a seperate program (not written by me!), available from: (URL) uses any QuickTime compatible video device, and allows you to run AppleScript commands depending on what is seen on the video. It includes all kinds of video (...) (24 years ago, 29-Jan-02, to lugnet.robotics.rcx.nqc)
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| | Fw: Interactive C Version 4 is available for free download
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----- Original Message ----- From: "Fred G. Martin" <fredm@alum.mit.edu> To: <lugnet.robotics.han...ugnet.com> Sent: Monday, January 28, 2002 9:32 AM Subject: Interactive C Version 4 is available for free download (...) (24 years ago, 29-Jan-02, to lugnet.robotics)
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| | Re: true tcp/ip on the RCX
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plz email me the url when u get it running thx -p (...) (24 years ago, 29-Jan-02, to lugnet.robotics.rcx.legos)
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| | Re: Control the RCX from AppleScript
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(...) robotics thing myself yet. Actually, I'm writing this response to try to connect a couple of other things to you and your work, and hope you might have some input for the community. First, you say that your script controller supports the (...) (24 years ago, 29-Jan-02, to lugnet.robotics.rcx.nqc)
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| | Control the RCX from AppleScript
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Version 1.4b1 of Robot Controller is now available, with full AppleScript support. Inputs, outputs, program slots, datalog, variables and messages can all be controlled from scripts. Ideal for use with VideoScript (does everything which Vision (...) (24 years ago, 29-Jan-02, to lugnet.robotics.rcx.nqc)
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| | Why can't we manipulate TMSK1
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Hello, We have some problems to manipulate TMSK1(address is 0x1022). We wrote the following test code: test.c ***...*** ***** void main() { int i, j; printf("\n"); i=peek(0x1022); printf("TMSK1=%d ", i); j=0x00; poke(0x1022, j); i=peek(0x1022); (...) (24 years ago, 29-Jan-02, to lugnet.robotics.handyboard)
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| | Re: Interactive C Version 4 is available for free download
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Hi! When I first fired up IC 4 it was wiithout the expansion board, and the HB booted fine. I suppose you could save some memory and processor time if you didn't load the expansion board libraries.) The list of files it downloads seem to be in (...) (24 years ago, 29-Jan-02, to lugnet.robotics.handyboard)
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| | Re: Strange behavior
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In lugnet.robotics.rcx.legos, Robert Templeton writes: Nothing like talking to yourself :), but I did finally find the problem and it is in the code. It isn't always what's there, but what's not. Here's the offending section: (...) Instead of (...) (24 years ago, 29-Jan-02, to lugnet.robotics.rcx.legos)
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