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Forgive my ignorance with respect to robotics and the like but what would you do with a laser? Is it used for guiding the robot or can the RCX detect when the beam is broken? I don't assume it is used to zap dirty dishes from the dinner table. <g> (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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Yeah. In can't think of anything that a laser could be used for. Unless you had reflective walls and could use it as a range finder. Sort of like an ultrasonic range finder, only with light. I wonder if the timing could be done fast enough. Andy (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | RE: !!! Laser attachments for Mindstorms !!!
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I think a laser would be very useful for vaporizing pesky obstacles, I'd like mine to be a CO2 @ 50 Watts please....Blue bricks would be just fine :>)) Seriously, a laser might be an interesting source of light for a homing beacon. I don't know if I (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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Andy Gombos <lego-robotics@crynwr.com> wrote in message news:37FE04DD.CA5505...nfi.net... (...) Maybe you could use it to blind people or pets. (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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i assume that i will be able to make a small lego robot that hunts for annoying dogs in the neiborhood and vaproizes them. i demand no less. b ---...--- (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) My initial thought was "Why?", but of course the next couple of posts displayed the creative energy of this group and contained several good answers to my question. For range finding using the laser wouldn't monitoring the intensity of the (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) Wasn't this what the SUN Jini demo did? Joel Shafer joel@connect.net (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Open NELUG Meeting Saturday 10/23 @ 7:00 PM.
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The New England Lego Users' Group (NELUG) will be hosting an open meeting on Saturday, October 23rd at 7:00 PM, during the upcoming MindFest event. The MindFest organizers at the MIT Media Lab have graciously offered us a large room for the (...) (26 years ago, 8-Oct-99, to lugnet.announce, lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) Pulsing the laser would be implemented with the "motor speed control". (...) How about just using it with mirror(s) and the light sensor as a tripwire? (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | RE: !!! Laser attachments for Mindstorms !!!
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(...) difficult (...) of a (...) Snip You put a single field lens in front on the laser to provide a conical beam, but this is usually already done by the manufacturer because a laser diode is basically a point source and needs to be collimated to (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | !!! Laser attachments for Mindstorms !!!
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Lasers are very well, and make cool toys. My cat loves to chase the little red spot on the carpet! But if you're talking about scanning or diffusing the beam, aren't you defeating the purpose of using a laser. If you want a cone, use a super- bright (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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Maybe the robot could use the laser to draw spiro-graph designs on the wall, I'm not sure if the motors could position the beam that fast though. Joel Shafer joel@connect.net (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) Rangefinding can be done without much of this hassle. I developed an application a few years ago to "showcase" a product for the optoelectric company for which I worked. The product was a "position sensitive diode", aka a photodiode with two (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) I don't think I was clear enough in my last post. The $35 price includes shipping, but only for orders inside the US. International orders need to pay shipping. Josh (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | GP2D12 and Handyboard
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Hi all! I recently got hold of a sharp GP2D12 ir range sensor (The analog version, not 8-bit serial) Upon connecting it to my handyboard (Vcc-5v, Gnd-Gnd, and Vo to analog port) I get between 249 and about 251 value from the analog port. Clearly no (...) (26 years ago, 8-Oct-99, to lugnet.robotics.handyboard)
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| | Motors
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Does anyone know where to get good motors that work good with the handyboard. I need geared DC motors because we dont want our project to be a racing car. If anyone has any answers or suggestions please email me back. Thanks. TIM ===== (26 years ago, 8-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Motors
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Try Micro Mo, they have high quality motors and gearheads. They can be pricy if (...) (26 years ago, 9-Oct-99, to lugnet.robotics.handyboard)
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| | wireless camera
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I remember sometime ago a discussion on wireless cameras. I just saw this one that can be battery operated. and is 900mhz. from the picture you really can't tell the size of the camera but I thought I'd pass it along. (URL) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: wireless camera
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(...) It says Camera Dimensions: 2" x 3.75" x 5.5" and that's probably not including the battery box or antenna. (26 years ago, 9-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) I was actually working on something like this using one of those cheap little $8 laser pointers. The idea is to use a pair of mirrors that can be rotated to specific angular locations to build an X-Y Laser Plotter. One mirror rotates (...) (26 years ago, 9-Oct-99, to lugnet.robotics)
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