 | | Re: GBC at BrickFest 2006
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(...) LOL!! That may be an idea for next year. To come up with a mindstorms concept/competition that appeals to the other gender as well...maybe Bunnie or our significant others can come up with it! Dave (19 years ago, 7-Sep-06, to lugnet.robotics)
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| | Re: GBC at BrickFest 2006
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(...) I raised this issue in June when discussing GBC reliability, seeing that 1 bps implies a measured time interval. Of course, what is the interval?, I asked. The general consensus is that it is a 30 second time interval. As such, the worst you (...) (19 years ago, 7-Sep-06, to lugnet.robotics)
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| | Re: NXT Ultrasonic sensor / Retreiving 8 OBjects at Once
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This here: (...) Is exactly what I want to do! Do you have any links? If any of your friends have any of their work online I'd love to check it out.. Thanks! Ben (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | RE: NXT Ultrasonic sensor / Retreiving 8 OBjects at Once
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(...) Unfortunately, you cannot operate a ultrasound sensor at this rate. I think it is much slower than this. Before you start a new "ping" you have to ensure that all the echoes from distant devices on first ping have been received before starting (...) (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | Re: NXT Ultrasonic sensor
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(...) Yeah the speed of light is pretty darn fast! Sound is quite turtle-like in comparison ;) Ben (19 years ago, 6-Sep-06, to lugnet.robotics)
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| | 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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