 | | Simple Sensor interface, was Re: Question?
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Thanks for publishing this... I have trouble locating infos on regulator "81250", I suppose it is a 5V LDO, but couldn't find manufacturer/datasheet For other curious people, datasheet of the dual shottky diode MA704 is here: (URL) the opamp here (...) (23 years ago, 7-Feb-02, to lugnet.robotics)
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| | Re: Sensor Connector
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(...) Thanks, I thought there might be a special connector but I see now that its a standard enough connector. Another question: How can I get the handy board to read from the lego rotation sensor and the lego light sensor? I can get the touch (...) (23 years ago, 7-Feb-02, to lugnet.robotics.handyboard)
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| | Re: Question?
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I've put a simple sensor interface design on Brickshelf which shows the key elements of providing a linear bi-polar connection to the RCX sensor input. (The two wire RCX connections are represented by the large circles to the right of the (...) (23 years ago, 7-Feb-02, to lugnet.robotics)
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| | Re: Lost my IR Tower
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Hi, I can post it on my site as well... ...when it is finished. :) Q (...) (23 years ago, 7-Feb-02, to lugnet.robotics)
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| | Re: Question?
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Hi Peter, (...) it works for me. (URL) shows another schematics that doesn't show the real rotation sensor circuit, but has the same interface to the RCX. (...) Yes, that's the case. (...) That's what the rectifier bridges are for. (...) With the (...) (23 years ago, 7-Feb-02, to lugnet.robotics)
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| | Vision Command...
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Greetings Mindstormers, I have just unwrapped my brand new Vision Command, gawsh... ...I can't wait to get home and begin playing... ...anyway I am rambling now... ...let me get back to my original question. Is there anyway to write software in Java (...) (23 years ago, 7-Feb-02, to lugnet.robotics)
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| | Re: Lost my IR Tower
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(...) I'd be happy to find a home for it on my Lego pages. ---...--- Steve Baker ---...--- Mail : <sjbaker1@airmail.net> WorkMail: <sjbaker@link.com> URLs : (8 URLs) (23 years ago, 8-Feb-02, to lugnet.robotics)
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| | Lost my IR Tower
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Hi This is probably of no interest to anyone else but... When I bought my Mindstorms (for US$15 in a charity shop) it was missing the IR Tower. I'd allotted myself an hour to build a Tower but I suspect the IR components I was using were the wrong (...) (23 years ago, 7-Feb-02, to lugnet.robotics)
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| | Re: Question?
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(...) I meant that the sensor can be connected either way round. (...) (URL) link! I've yet to find a working link to _any_ schematic of the light or rotation sensor (...) current, and "light" is full current, regardless of polarity. Maybe that is (...) (23 years ago, 7-Feb-02, to lugnet.robotics)
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| | BrickHeap Wars!
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BricksWest will host the first ever BRICKHEAP WARS event. This is a competition loosely based on Junk Yard Wars. This particular episode will be a LEGO Mindstorms competition. All materials (1) will be provided at the competition. No outside LEGO (...) (23 years ago, 7-Feb-02, to lugnet.events.brickswest, lugnet.general, lugnet.announce, lugnet.robotics) !!
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| | RE: Motorized landing gear question
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You might also want to check out the landing gear for the 8480 Space Shuttle (my all-time favorite set, BTW :) on Lugnet. It uses shafts and cogs to move the landing gear, but when the landing gear is extended the weight is borne by the frame of the (...) (23 years ago, 7-Feb-02, to lugnet.robotics)
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| | BricxCC release 3.3.3.7
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I've just uploaded a new release of BricxCC. Version 3.3.3.7 completes the implementation of the configurable Tools feature. Transfer item parameter macros are now functional. The major feature enhancement in this release, however, is the addition (...) (23 years ago, 6-Feb-02, to lugnet.robotics.rcx.nqc)
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| | Re: Sensor Connector
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Info on doing this is at (URL) . The male strip header is 929400-01-36-ND from Digikey. Fred (...) (23 years ago, 6-Feb-02, to lugnet.robotics.handyboard)
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| | Re: Sensor Connector
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(...) Oh, that's easy. Just check out your local electronics store. I don't know if there is a Fry's Electronics in your area, but they have them. Radio Shack? I don't know, but I would assume anyone who sells electronic components would have them. (...) (23 years ago, 6-Feb-02, to lugnet.robotics.handyboard)
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| | Re: Sensor Connector
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(...) Actually what I was looking for was how to make the male header pins to connect to the HB. Is there anywhere to buy them or how did you make them. Thanks for your answer, brendan (23 years ago, 6-Feb-02, to lugnet.robotics.handyboard)
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| | Re: Sensor Connector
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(...) Actually, you can make a half way decent replica of the Lego two plate high connector at this point quite easily. When you prepare the 2x2 piece of the electric plate, cut the center circular section away from the underneath. Then, solder the (...) (23 years ago, 6-Feb-02, to lugnet.robotics.handyboard)
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| | Re: Sensor Connector
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I've bought some lego electric plates (part 5037) from lego.com, and they seem to be withstanding the heat of a soldering iorn quite well (that was my fear... that I would turn them into bubbling messes). Actually they're holding up better than the (...) (23 years ago, 6-Feb-02, to lugnet.robotics.handyboard)
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| | Sensor Connector
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I currently have lego motors and wires that I have used with the RCX but now Im using the Handy Board. The book explains how to connect the motor to the handy board by connecting a wire to a sensor connector but it doesnt state where to get such a (...) (23 years ago, 6-Feb-02, to lugnet.robotics.handyboard)
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| | Re: Ultrasonic Sensor
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(...) Sound travels on the order of 333m per second, so with the 3ms interval between sensor readings you will get a resolution of 1m. You could try some heavy machine level hackery inside legOS or leJOS to read the sensors in a shorter interval, I (...) (23 years ago, 6-Feb-02, to lugnet.robotics)
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| | Re: Ultrasonic Sensor
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(...) let (...) Thanks for that Steve. My circuit will be based on the latter of the two possibilities. It is based on a design by RA Penfold from Electronics and Beyond (Sept.2001) so I'm basically doing construction by numbers! However, the thesis (...) (23 years ago, 6-Feb-02, to lugnet.robotics)
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