| | Re: Power to RCX
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(...) Sorry, I am little confused. Does it mean that everything LEGO did was REMOVING DC adaptor hole to make difference between 1.0 and 1.5 version ? (talking about RCX hardware) and therefore i can connect my wall AC/DC adaptor directly to that (...) (23 years ago, 11-Feb-02, to lugnet.robotics.rcx)
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| | Re: Power to RCX
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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)
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| | Re: Power to RCX
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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 (...) (23 years ago, 3-Feb-02, to lugnet.robotics.rcx)
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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, (...) (23 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 (...) (23 years ago, 2-Feb-02, to lugnet.robotics.rcx)
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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) (23 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 (...) (23 years ago, 2-Feb-02, to lugnet.robotics.rcx)
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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 (...) (23 years ago, 1-Feb-02, to lugnet.robotics.rcx)
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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 (...) (23 years ago, 1-Feb-02, to lugnet.robotics.rcx)
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| | Re: Downloading Firmware
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(...) I have an E-machine that uses Windows 98. Mark (23 years ago, 31-Jan-02, to lugnet.robotics.rcx)
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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 (23 years ago, 31-Jan-02, to lugnet.robotics.rcx)
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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 (...) (23 years ago, 31-Jan-02, to lugnet.robotics.rcx)
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| | Re: inverted penulum
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(...) Let me know how your controller works. We could communicate each other our experience. Claude (23 years ago, 28-Jan-02, to lugnet.robotics.rcx)
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| | Re: inverted penulum
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(...) Have you had any luck with the inverted pendulum? Im currently working on the same problem - ive designed a pendulum with plenty of damping and I have developed a mathematical model but I am unsure if it is accurate enough. Ive developed a PID (...) (23 years ago, 28-Jan-02, to lugnet.robotics.rcx)
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| | Rail Racers track operation details
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I have finally documented how the current Rail Racers race track is controlled and configured. I hope to had more detailed information on each individual component soon, as well as the source code for the RCXs (developed in NCQ). The basic overview (...) (23 years ago, 23-Jan-02, to lugnet.robotics.rcx, lugnet.trains, lugnet.general) !
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| | Re: More RCX's controled by one tower ?
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You cannot program them independantly, but you can make sure your programs respond to different IR messages during normal operation. All RCX's will receive the messages, but as long as only one responds with some action then independant control is (...) (23 years ago, 22-Jan-02, to lugnet.robotics.rcx, lugnet.robotics)
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| | Deleting Programs
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I am using legOS to program a robot for a uni project because the other stuff is aparently too simple but i cant delete the current programs off the RCX to download the new firmware. Is there any other way of doing this without just leaving the (...) (23 years ago, 18-Jan-02, to lugnet.robotics.rcx)
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| | More RCX's controled by one tower ?
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Heya all ! Sorry if this was discused before but is it possible to control or program for example two RCX bricks with one tower from one PC so they work indifferently from eachothers in ONE model ? - Thanx ! - Rene (23 years ago, 18-Jan-02, to lugnet.robotics.rcx, lugnet.robotics)
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| | IRC
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Anyone who is a regular user of IRC can join my channel #LegoMindstorms (on dalnet). Coma and chat or give/recieve assistance. If you join you are welcome to Ops because anyone in here will know more about Mindstorms than me as i know almost (...) (23 years ago, 16-Jan-02, to lugnet.robotics.rcx)
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| | Re: SDK 2.0
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(...) Umm. When I installed the new SDK it worked just fine, but I downloaded it from a different site: (URL) you could try replacing the troublesome file with the original one on your Windows installation CD. --Ian (23 years ago, 17-Jan-02, to lugnet.robotics.rcx)
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