 | | Re: How2 'count' in NQC
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I want to thank everyone who helped with the double problem of switch de-bouncing and that loops can often count continuously while the switch is in actuation. There were good suggestions about removing delays from the code and 'counting' upon (...) (25 years ago, 4-Nov-00, to lugnet.robotics)
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| | Re: MOC: Radio Controlled Tank.
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Tobbe, This is a nice looking model, especially with all the functions. As to more traction, you could use alternating regular chain links and tread links and mount a 1x4 plate on each tread link, studs out. I'm not sure how realistic this would (...) (25 years ago, 4-Nov-00, to lugnet.technic, lugnet.robotics)
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| | AI in RCX
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(...) AI on RCX] I will believe it when I actually see it. Until then, it remains to me a conceptual possibility (like all projects), but a practical impossibiltiy. My primary reason for suggesting that the goal of the project be reduced was to (...) (25 years ago, 4-Nov-00, to lugnet.robotics)
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| | Re: AI in RCX
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Don't forget to take a look at (URL) great site for this kind of stuff. - Christophe - (...) (25 years ago, 4-Nov-00, to lugnet.robotics)
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| | Re: AI on RCX - oops
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I forgot to metion.. a very good, and practical book on Neural Networks is "Machine Learning" by Tom M. Mitchell (1997). Includes theory and examples. But working with Finite State Machines is a much more reasonable starting point for RCX. rama (25 years ago, 4-Nov-00, to lugnet.robotics)
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| | Re: AI in RCX
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You picked a challenging project. It is not possible for the RCX to do Neural Networks alone, since the RCX does not have the command set, and is not a fast enough processor to calculate the weights of the Neural Network. Also, the RCX doesn't have (...) (25 years ago, 4-Nov-00, to lugnet.robotics)
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| | Re: Motorized VC cam focusing
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(...) Well i havent tried anything myself but i think the most effective way would be to use a tire in contact with the lens. You've probably tried that already, but it was the first thing that came to mind. hope it helps. (25 years ago, 4-Nov-00, to lugnet.robotics)
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| | Motorized VC cam focusing
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Hi, I wonder if anybody has succeeded in building a motorized focus controller for the Vision Command cam. So far I have tried several ideas but none was very effective. I am looking for better ideas. Jan (25 years ago, 4-Nov-00, to lugnet.robotics)
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| | AI in RCX
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I want to program AI into RCX that can avoid objects by the readings of 3 three ultra-sonic sensors. I am supposed to use Neural Network. But I difficult as the programming is limited by the RCX (even RCX 2.0 is used) Would you be kind enough to (...) (25 years ago, 4-Nov-00, to lugnet.robotics)
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| | Re: How2 'count' in NQC
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In lugnet.robotics, Jerry Kalpin writes: [SNIP] (...) There is an EDGE mode available through the firmware that only counts transitions between pressed and non-pressed (actually some raw threshold value if I remember correctly) states. This sensor (...) (25 years ago, 3-Nov-00, to lugnet.robotics)
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| | Re: How2 'count' in NQC
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I have noticed this ongoing thread about the difficulties of debouncing and counting switch closures, and I must say that it is a very real problem anywhere electromechanical switches are interfaced to electronics which is orders of magnitude (...) (25 years ago, 3-Nov-00, to lugnet.robotics)
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| | Re: How2 'count' in NQC
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Steve, this is the third time you have helped me, and this time you obviously spent a lot of time working out the alternatives. First of all, the Wait (DELAY); in my inept code was not to flash every half second. It was to prevent additional counts (...) (25 years ago, 3-Nov-00, to lugnet.robotics)
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| | Re: Radio Controlled Tank - tread lightly.
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(...) Yes, please! :) Have to check if they sell Funrise brand toys here in Sweden. //Harri Manni -"Do not take life too seriously.You will never get out alive." (25 years ago, 3-Nov-00, to lugnet.robotics)
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| | Re: MOC: Radio Controlled Tank.
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(...) Here's an idea you can try to have them slip a bit less. Do you have the ordinary chain links too? Then ones without the wide tread? If so use an ordinary chain link for every third link, say. Like this: ##=##=##=##= Perhaps this will give (...) (25 years ago, 3-Nov-00, to lugnet.technic, lugnet.robotics)
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| | Re: MOC: Radio Controlled Tank.
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(...) Thanks :) (...) Yes, they sure were. One of 'em I even managed to scare twice, first when the tank entered the room and then when it actually fired a projectile :) To bad it takes almost half a minute to set the cannon horisontally, I have to (...) (25 years ago, 3-Nov-00, to lugnet.technic, lugnet.robotics)
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| | Re: MOC: Radio Controlled Tank.
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(...) Thanks! So do I :) (...) It's from before my dark ages, mainly the 8851 Excavator and the 8660 Arctic Rescue, I also got two with the 8843 Fork Lift truck. They usually look better then they work since they tend to slip a lot, but in this case (...) (25 years ago, 3-Nov-00, to lugnet.technic, lugnet.robotics)
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| | Re: Palm Hardware Interface idea? + other stuff
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(...) It's basically the same serial data connection as the RCX. It just uses radio for transmission instead of infrared, so it goes around corners and has a longer range. Jürgen (25 years ago, 3-Nov-00, to lugnet.robotics)
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| | Re: RCX 2
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(...) You can start by doing some searches on this newsgroup for the 3 or so discussions on this very topic. Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (25 years ago, 3-Nov-00, to lugnet.robotics)
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| | Re: How2 'count' in NQC
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(...) The sensor returns 1 for as long as it's held down. In your code: (...) You are actually counting how long the switch is held down - in units of about a half second. So if you press and hold the switch for ten seconds, you'll get a count of (...) (25 years ago, 3-Nov-00, to lugnet.robotics)
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| | Re: RCX2
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(...) Right now, it's just a different firmware package that you can download into any RCX. You can get a copy on the main Lego site and upgrade your RCX 1.0 or 1.5 to the 2.0 software level...it's a significant improvement if you use NQC - it adds (...) (25 years ago, 3-Nov-00, to lugnet.robotics)
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