 | | Sharp GP2D05 Infrared Ranger and the RCX
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Hi, this seems to be a very good idea for a new RCX sensor. Reading the Sharp data sheets for their infrared distance sensors I want to write some facts about. They have 4 different sensors for measuring distances from 10 to 80 cm. The differences (...) (26 years ago, 3-Oct-00, to lugnet.robotics.rcx)
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| | German Newspaper Links to Mindstorms
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Hi all, Here's a rather long link to a Berlin newspaper that references many of the mst important pages in the Mindstorms canon... (URL) Have you checked your hit counters lately? Cheers, Ralph Hempel - P.Eng ---...--- Check out pbFORTH for LEGO (...) (26 years ago, 3-Oct-00, to lugnet.robotics.rcx)
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| | Dave Baum's scanbot w/ bumper?
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I was programming a "scanbot" from the Definitive Guide and wanted to install a bumper as I noticed the robot would run into things periocically while "searching" for the light. I wrote some code as follows: void check_bump { if (BUMP == 1) { (...) (26 years ago, 27-Sep-00, to lugnet.robotics.rcx)
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| | Re: Communicatin between NQC and legOS
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(...) you won't be able to use LNP - those packets are completely different from the Lego firmware ones. You'll need to write bytes directly to the serial port (I'm not sure what support there is for this in legOS since once you start munging the (...) (26 years ago, 27-Sep-00, to lugnet.robotics.rcx)
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| | Re: Communicatin between NQC and legOS
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(...) OK, but do i have to create this frame using legos ?? I tried but it doesn't work. (thank you so far dave baum ! I received your book today, hope this will help me.) (26 years ago, 26-Sep-00, to lugnet.robotics.rcx)
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| | Re: Sharp GP2D05 Infrared Ranger and the RCX
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That sensor looks very cool. It seems like it could run off of the standard brick voltage too, unlike the sonar sensor which would need an additional battery pack. And it is cheap. Rig it up! (...) (26 years ago, 25-Sep-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Sharp GP2D05 Infrared Ranger and the RCX
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Hi, Has anyone interfaced the Sharp GP2D05 infrared ranger with the RCX??? Ram (26 years ago, 24-Sep-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Three new books about Lego Mindstorms
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Also "Extreme Mindstorms: An Advanced Guide to LEGO MINDSTORMS" from A!Press is due in the UK in November. More details at (URL) Doucette" <rob.doucette@york.com> wrote in message news:G1AIsn.6xx@lugnet.com... (...) (26 years ago, 25-Sep-00, to lugnet.books, lugnet.robotics.rcx)
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| | Re: Communicatin between NQC and legOS
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(...) The protocol used by the standard firmware (which is what NQC relies on) is described on these sites: (URL) opcode of interest is F7 (thats what gets sent as a transmitted message). The entire packet would look like this: 55 ff 00 f7 08 x ~x s (...) (26 years ago, 23-Sep-00, to lugnet.robotics.rcx)
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| | Re: Which set contains the Temparature Sensor?
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I'm pretty sure that it doesn't come in any sets. I know you can order it from Shop@Home. I purchased my from eBay and got a much better deal than through S@H. LEGO tech support said the sensor was accurate to the integer. for example, it's 71 (...) (26 years ago, 22-Sep-00, to lugnet.robotics.rcx)
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| | RE: Three new books about Lego Mindstorms
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(...) This one has pbForth on the CD - or at least that's what they said.... Of course, you all know that Dave Baum's new book, "Extreme Mindstorms: an Advanced Guide to Lego Mindstorms" It has lots of detailed information on the RCX, as well as a (...) (26 years ago, 22-Sep-00, to lugnet.robotics.rcx)
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| | Re: Three new books about Lego Mindstorms
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"Johan Hjertman" <the_hartman@hotmail.com> wrote in message news:G1ABov.DI2@lugnet.com... (...) released. (...) AFAIK, this one hasn't shipped yet in the US. (...) Available in the UK, see: (URL) sets and parts for sale or trade: (URL) (26 years ago, 22-Sep-00, to lugnet.books, lugnet.robotics.rcx)
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| | Which set contains the Temparature Sensor?
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Hi, Does any set (except 9755 from Dacta) contain the Temparature Sensor? I tought that the Ultimate Accessory Set (3801) contained one and spend most of the last night searching in my collection for the damned thing (hey, I *really* thought that (...) (26 years ago, 22-Sep-00, to lugnet.robotics.rcx)
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| | Three new books about Lego Mindstorms
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Hi I have found that three new books about Lego Mindstorms soon will be released. Lego Mindstorms for Dummies by Michael Meadhra, Arthur Griffith ISBN: 0764507672 Introducing Robotics with Lego Mindstorms Penfold, R A ISBN: 0859349012 More Advanced (...) (26 years ago, 22-Sep-00, to lugnet.robotics.rcx)
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| | Re: Short term memory ablut sensor input???
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(...) The program doesn't actually record in the Vectors array any information about where it saw an obstacle. It just records which direction the robot went and how far (according to the rotation sensor) during the last leg of the journey. Each (...) (26 years ago, 22-Sep-00, to lugnet.robotics.rcx)
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| | Re: Short term memory ablut sensor input???
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Can you remember a touch sensor reading? This way by using only one light sensor as an irpd, I can detect which way to turn to avoid the obstacle. (...) */ (...) turning */ (...) */ (...) travel */ (...) */ (...) ------ (...) */ (...) ------ (...) (...) (26 years ago, 21-Sep-00, to lugnet.robotics.rcx)
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| | Re: Short term memory ablut sensor input???
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Agreed, LegOS is the way to go. Here is a LegOS program I wrote for a robot that keeps track of its heading in one of 8, increments (45 degrees intervals, numbered 0 to 7 heading clockwise). It keeps track of the last 10 segments in it's travels (...) (26 years ago, 21-Sep-00, to lugnet.robotics.rcx)
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| | Is Extreme Creatures Good? (WAS: Re: US S@H Specials, Sep 20 - Sep 26, 2000)
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(...) is this a good set? (i know i cant beat the price, but i wanna know if i'll have fun with it) josh (26 years ago, 21-Sep-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
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| | Re: Short term memory ablut sensor input???
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(...) never mind. I've done this once, to prove, that you can build a little robot, which won't get stuck in any kind of corner. Changing strategie, if it detects a corner, in which it was stuck. an programm it only with this kid programming (...) (26 years ago, 21-Sep-00, to lugnet.robotics.rcx)
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| | Re: Short term memory ablut sensor input???
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(...) That's true. You can't remember something like a light-sensor reading, though. My thinking is: if you're at the point where you want to be doing stuff like this, you're probably ready to graduate to a better system! (26 years ago, 21-Sep-00, to lugnet.robotics.rcx)
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