 | | Re: New creation: Lego Clock —Gregor Benedikt Rochow
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| | | (...) I take it that the fiber-optic "distributor"'s LED-switching can be sensed by the RCX? Now that is an astounding multi-use of a specialized element. -gbr (25 years ago, 4-May-99, to lugnet.robotics)
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| | | | | Re: New creation: Lego Clock —Ben Williamson
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| | | | | (...) Yep, pretty cool. I can't take credit for figuring that out, does anyone recall who did? I'm sure this side-effect didn't happen by accident, there's no real reason to switch the LED when it's blocked if all you want is pretty flashing light (...) (25 years ago, 4-May-99, to lugnet.robotics)
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| | | | | | | Re: New creation: Lego Clock —Dennis Clark
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| | | | | | | (...) Ben, I still don't know really what you are talking about, this is the first that I have heard of using that FO thingee as an angle sensor/counter. How does it work in NQC? thanks, DLC (25 years ago, 4-May-99, to lugnet.robotics)
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| | | | | | | | | Re: New creation: Lego Clock —Alex Wetmore
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| | | | | | | | From: Dennis Clark <dlc@verinet.com> (...) How (...) Treat the FO device as a light sensor. As you turn it you can see it switch between two values (a high value and a low value). Count those values and you have a rotation sensor. Its probably (...) (25 years ago, 4-May-99, to lugnet.robotics)
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| | | | | | | | | | Re: New creation: Lego Clock —Luis Villa
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| | | | | | | | Is there any way to order the fiber-optic thing by itself? I can't find it anywhere in the pitsco-dacta catalog. -Luis (...) ###...### God was my co-pilot, but we crashed in the mountains and I had to eat him. -bumper sticker ###...### -- Did you (...) (25 years ago, 4-May-99, to lugnet.robotics)
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| | | | | | | | | | RE: New creation: Lego Clock —Tilman Sporkert
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| | | | | | | | (...) I have never seen a service pack with it. But I believe S@H has the fiber optic multi-set (8456) on sale this spring. It includes 397 additional parts. Or you can by an Mindstorms Extreme Creatures set for $49.95... Tilman -- Did you check the (...) (25 years ago, 5-May-99, to lugnet.robotics)
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| | | | | | | RE: New creation: Lego Clock —Tilman Sporkert
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| | | | | | (...) Has anybody looked inside on of those fiber-optic light "distributors"? Maybe it's a set of LEDs in a circle, with a contact wiper mounted on the axle that turns them on one by one as the axle rotates? Tilman -- Did you check the web site (...) (25 years ago, 4-May-99, to lugnet.robotics)
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| | | | | | | | RE: New creation: Lego Clock —Ben Williamson
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| | | | | | (...) No, there's only one LED and it moves. I haven't opened one up, but if you turn it slowly and look down the holes you can watch the LED get brighter and then dimmer as it goes past. Weird design if you just want a light chaser, but cool if you (...) (25 years ago, 4-May-99, to lugnet.robotics)
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| | | | | Re: New creation: Lego Clock —Joel Shafer
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| | | | On your page I also saw your scanner / plotter. Very cool, I've been thinking about building one of those for a while. How did you get the precision control by using touch sensors instead of rotation sensors? (...) -- Did you check the web site (...) (25 years ago, 5-May-99, to lugnet.robotics)
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| | | | | | Re: New creation: Lego Clock —Ben Williamson
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| | | | (...) The touch sensors are just limit switches at the endpoints of motion. There's not much precision, it just uses time delays and assumes that the motors spin at a fairly constant rate. Seems to work well enough for some things, but that wouldn't (...) (25 years ago, 5-May-99, to lugnet.robotics)
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