 | | THX for the advices
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Hi ! Thanks a lot for your advices, Steve and Kevin ! Now I know a lot more about the behaviour of the sensor. I think I'm gonna watch his activity through connecting it with my oscilloscope, then I can see exactly how it communicates with the RCX. (...) (22 years ago, 21-Dec-03, to lugnet.robotics)
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| | Re: rotation sensor
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(...) Hi Thomas, Your english is better than my danish. No need to apologize. There are only two wires between the RCX and the rotation sensor. These wires provide both power and sensor signal. There are two kinds of sensors: passive and active. (...) (22 years ago, 21-Dec-03, to lugnet.robotics)
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| | rotation sensor
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Hi ! I'm gonna include the lego rotation sensor to a c167 system created by myself and for that I need to know which pins of the lego plug function for what. As far as I know the plug of the rotation sensor has two pins for power supply and another (...) (22 years ago, 21-Dec-03, to lugnet.robotics)
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| | Re: RCX 1.0 without external power jack?
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(...) Yes, there is a current limitation in driver. See this curve ((URL) and driver datasheet ((URL) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: RCX 1.0 without external power jack?
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(...) It looks like there isn't as much output drive protection on the RCX2.0 PCBs, unless the MLX10402CB parts have more internal protection than the ELEX 10402As. Does anyone know of any information available about this? I will say now that I (...) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Made me cry!
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Has anyone seen/read the Ultimate Builders Set The Untold Story at Lego.com (URL) Look at all those parts..... this is the phrase that I got upset about ".....When their work place becomes too messy Anthony and Mads do not start to sort the (...) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: Product Review: Linksys WVC11B and VEO Observer
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(...) One thing I think is worth pointing out is that at least the VEO Observer uses some proprietary activeX applet and is only compatible with IE 5.0+, so no support for other browsers (or Linux). Anything except windows is explicitly *not* (...) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: RCX 1.0 without external power jack?
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(...) Apart from supply jack in 1.0 and 2.0 marking on 2.0, there are some PCB differences, see board scans here: (URL) 2.0 brick uses a 76kHz IR receiver chip to get better compatibility with Spybots/Manas but much lower sensitivity between RCX to (...) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: RCX 1.0 without external power jack?
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(...) The Lego outlet at Dawsonville might have some 9709's available--yep, the one's with the jack. I think they are currently 59.95 or 69.95. If anybody wants some and is going to Brickfest PDX, you can do a phone order for the RCX (so you can buy (...) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Behavior of the Roomba
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Thinking about the one major robotic invention that's creeping into homes these days, it doesn't seem too complex an algorithm. The behavior seems to be as follows: 1) It starts out in an outward spiral motion 2) When it encounters a wall / stairs (...) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: RCX 1.0 without external power jack?
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(...) Ooops my bad... Yes they are marked 2.0. Has anyone checked whether they are any different to the 1.0 from the 1.5 set? ROSCO (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: RCX 1.0 without external power jack?
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I have 2 RCXs that came with the RIS 2.0 that are labeled RCX 2.0. my $0.02 ----- Original Message ----- From: "Ross Crawford" <rosscraw@bigpond.net.au> To: <lego-robotics@crynwr.com> Sent: Saturday, December 20, 2003 12:14 AM Subject: Re: RCX 1.0 (...) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: RCX 1.0 without external power jack?
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I bought the brick by itself and I can see how the seller mis-listed it. Live and learn. I got it at a good price so I'll keep it. I still want one with an external jack. Oh well, just have to buy another. :0) Thanks for the info. Mike (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: RCX 1.0 without external power jack?
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(...) Unfortunately Mike, it's rather confusing - although the *sets* are numbered 1.0, 1.5 and 2.0, the RCXs are all marked 1.0. Only the one that came in the 1.0 set (9719) has a power jack, although you can also still get them from Lego (...) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | RE: RCX 1.0 without external power jack?
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That is a 1.5... same numbers... no power jack. Liz B (...) Behalf (...) jack. (...) all (...) (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | RCX 1.0 without external power jack?
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I bought a RCX 1.0 used on Bricklink to get an RCX with an external jack. The one that arrived is marked 1.0 but has no external jack. I thought all 1.0 units had the jack. Anyone else run in to this? Mike (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) It doesn't work (yet), but it's very close... (URL) K (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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I did, did no one read it? (...) (22 years ago, 19-Dec-03, to lugnet.robotics)
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| | RE: I was thinking about bipedal walkers this morning and....
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Tinkertoys is close. This site also has the plans: (URL) -----Original Message----- (...) (22 years ago, 19-Dec-03, to lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) I have almost nothing to contribute to discussions re: robotics, but I spotted this marginally relevant story on cnn.com: (URL) of course. Dave! (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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Lots of responses to my post, so I'm following up my own post to address all of them. A lot of people are pointing out that this has been done before in the field of robotics, but what I was actually asking about is if it's been done before in (...) (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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I think you need to get some shifting of weight over the hips involved so that you don't fall to the side. it's complex. do a google search - i'll bet there is lots of online material available.... good luck (...) (22 years ago, 18-Dec-03, to lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) Parallax markets the Toddler, which is a walking Robot that shifts its center of gravity to walk. It turns by sliding its feet in opposite directions. It has 34 possible movements. (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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Now, think about what physically goes into making yourself walk. How much energy and control is involved? Try walking on a flat, level surface (or better, one at a slight decline, like a very long handicap ramp). Walk with your natural gait, at the (...) (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) More info here (URL) (22 years ago, 18-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) Dunno but this non-LEGO robot (with knees) has been taught to run (URL) wish there was a video available on the net somewhere - I saw it on TV yesterday, and though it's difficult to tell it's running, it does seem rather more "human-like" (...) (22 years ago, 18-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) Hi Mark, I have never seen a walker like this. I'd be the last person to say it can't be done. Kevin (...) (22 years ago, 18-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) Yes, there was a lot of work on this at the MIT robotics lab back in the 70s/80s, with bipedal, quadrupedal, and even unipedal hoppers. To get it to work, you need good orientation and/or acceleration sensors (I believe that the MIT folks used (...) (22 years ago, 18-Dec-03, to lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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Yes, I did a prototype using pneumatics as muscles. It worked semi-well - the thing walked somewhat, although in a very stiff gate. The main problem came from using pneumatics. I couldn't keep the pressure high enough to swing the legs back out (...) (22 years ago, 18-Dec-03, to lugnet.robotics)
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| | Sony Claims First Running Humanoid Robot
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Thought this would be of interest to the group - if you haven't seen it already! (URL) here's the link to the Slashdot discussion: (URL) (22 years ago, 18-Dec-03, to lugnet.robotics)
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| | I was thinking about bipedal walkers this morning and....
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Consider the way we walk... we start by effectively starting to lean slightly forward, and we swing a leg some distance in front of ourselves to stop from falling. We then start to bring the other leg forward as we reupright ourselves and repeat the (...) (22 years ago, 18-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: Mindstorms programming HELP wanted
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(...) Oh, believe me, there will be copious amounts of spirits this holiday season...whoo-hoo!! (22 years ago, 17-Dec-03, to lugnet.robotics)
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| | Re: Mindstorms programming HELP wanted
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Hi Jean-Marc, Besides doing a google using something like 'books Lego Mindstorms' to find Mindstorm specific books I can suggest, Programming the Parallel Port 0-87930-512-4 Programming Robot Controllers 0-07-140851-7 Mobile Robots 1-56881-011-3 (...) (22 years ago, 17-Dec-03, to lugnet.robotics)
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| | Re: Mindstorms programming HELP wanted
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Hi Jean-Marc, Brian Bagnall's "Core Lego Mindstorms Programming" would be an excellent place for you to start. Learning how to program is always more fun when you have a specific goal in mind, and this book gets you running without drowning you in (...) (22 years ago, 17-Dec-03, to lugnet.robotics)
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| | Re: Mindstorms programming HELP wanted
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Hi Jean-Marc, (...) ... (...) (URL) Be the holiday spirits with you, Happy Holidays y Felis Navidad! -- -- Open Forge, LLC 24/365 Onsite Support for PCs, Networks, & Game Consoles 512-695-4126 (Austin, Tx.) help@open-forge.com irc.open-forge.com (...) (22 years ago, 17-Dec-03, to lugnet.robotics)
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| | Re: Mindstorms programming HELP wanted
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Hi, "The Definitive Guide to Lego Mindstorms" by Dave Baum is a great reference for NQC "Extreme Mindstorms" is a sequel to Definitive Guide and contains chapters on NQC, pbforth, brickos(legos), and homebrew sensors by Dave Baum, Ralph Hempel, Luis (...) (22 years ago, 17-Dec-03, to lugnet.robotics)
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| | Mindstorms programming HELP wanted
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Hello there, I'm enjoying my RIS, but I have big trouble to program my MOCs. Beeing a complete newbie at programming, my brain is very chalenged and I have trouble to find good litterature to help me. I recently borrowed mindstorms for dummies from (...) (22 years ago, 17-Dec-03, to lugnet.robotics)
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| | Re: RCxcc
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(...) I already got it.thanks anyway. -Nick (22 years ago, 16-Dec-03, to lugnet.robotics.scout)
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| | Re: Spybot on shop@home
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(...) You will have fun with it! I know I did! It's like a video game, except in real life :) Gave one to my nephew a while back and he still does missions with it. Dave K (22 years ago, 16-Dec-03, to lugnet.robotics.spybotics)
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| | Spybot on shop@home
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The german shop@home dropped the spybots from 80+ Euro to 41 Euro. So I finally gave up and ordered one :) Regards, Michael (22 years ago, 16-Dec-03, to lugnet.robotics.spybotics)
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