 | | Re: GBC at BrickFest 2006
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(...) You're correct, I was streaming it from Google which was probably the issue. (...) It doesn't matter how much quicker than the standard a single module is - if it only gets 1 bps, then it can only pass them to the downstream module at 1 bps... (...) (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: GBC at BrickFest 2006
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(...) I downloaded it completely and don't see any jerkiness, maybe that was due to streaming it as the bandwidth from Google was a bit low (< 100kB/s). (...) But then it may need to accept a lot of balls, if the other modules are quicker. I know (...) (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: NXT Ultrasonic sensor
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(...) It never ceases to amaze me how astoundingly slow sound is compared to the speed of a computer. It's one of those rare cases when your view of the universe around you shifts into a completely new perspective. (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: GBC at BrickFest 2006
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(...) There are actually three ways to approach this: 1) Using something reflective on the far side of the ball chute - have the sensors light bounce back into the sensor - so the reading decreases when something gets in the way of the reflected (...) (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: NXT Ultrasonic sensor
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Hi, (...) since sound travels at about 333 m/s (depending on temperature and pressure), a meter takes 3 milliseconds. At the maximum range of 2.5 meters, times two that would be 15 milliseconds per reading. Cheers Jürgen (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: GBC at BrickFest 2006
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(...) I found a yellow LEGO rubber band on the TECHNIC table, so I took it home with me since most everyone was gone by that point. That's probably not a big deal, unlike an entire train regulator. :( (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: GBC at BrickFest 2006
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(...) Now that is a nice solution, and not one I'd thought of. Not having the silver brick, I could still use a (non-LEGO! Aaah!) solution of a small pice of reflective tabe or something. Cool. (...) I know that there's one power transformer that is (...) (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: GBC at BrickFest 2006
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(...) I had success with a ball detector using only one light sensor in my little interactive get-the-ball-in-the-hole module. If the ball went into the hole, it rolled past a light sensor (old RCX version; is there a new nxt one?). Across from the (...) (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: GBC at BrickFest 2006
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(...) Yeah, that's suspiciously absent from my video. I'm uploading another one now: (URL) Google version is really jerky I'm afraid.) This one starts with the train being loaded, but then follows the train to the next unloading module so you can (...) (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: NXT Ultrasonic sensor
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(...) PS - the thing I would want the radar to do is to guide a bucket for an excavator. The goal being to dig lego bricks from a pile with the bucket. So I think I can get away with it not being super-accurate or resolute. I'm really looking (...) (19 years ago, 6-Sep-06, to lugnet.robotics)
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