 | | Re: Rotational Sensor & Gearing Down
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"Steve Baker" <lego-robotics@crynwr.com> wrote in message news:3A6EFF8A.416F3D...ail.net... (...) Nice post, but you only ran the sensors counting up for x number of seconds. Try *reversing*. Then watch what happens... (IE, bring a sensor back home. (...) (25 years ago, 26-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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Thanks to all for the good information that has been related here. Most of my applications were low rpm which seems to be a definite fault area. I like to use them for absolute programming of positions. I now see the problem in using them in these (...) (25 years ago, 25-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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(...) Just don't go past it's Max or Min areas or you'll have a problem. This is probably a good place for the white slip gear... Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (25 years ago, 25-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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(...) I just read the very interesting posting regarding testing the rotation sensor to evaluate the "missing counts" phenomenon. The above snippit would indicate that the rotation sensor is handled differently from other sensors. It isn't! It is (...) (25 years ago, 25-Jan-01, to lugnet.robotics)
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| | Re: CM-RCX comm
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(...) Ok, one of many possible examples (we're talking about Lego, where your imagination is your limit... err... well, almost ;) I could use an input port of a RCX as a 4th motor controller, using VLL through the LED of a LightSensor connected to (...) (25 years ago, 25-Jan-01, to lugnet.robotics)
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| | LEGO Lab class
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I don't frequent robotics, but I figured I'd post about the class I'm taking. So far, we haven't done any control, just building mechanical stuff. Here are the pictures: (URL) course web site: (URL) Lambrecht bram@cwru.edu (URL) (25 years ago, 25-Jan-01, to lugnet.robotics, lugnet.robotics.edu)
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| | Re: Rotational Sensor & Gearing Down
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(...) But I don't think you did what we reported IS the problem... Did you run the motor FORWARD, then REVERSE so we can see the missing positions? That's where the errors come in. Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (...) (25 years ago, 25-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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(...) I think the PIC series of microcontrollers have some sample code for reading quadrature-type rotational sensors (a la mousewheels). Perhaps one could design a PIC-based intermediate module that was dedicated to reading rotational sensors (...) (25 years ago, 24-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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(...) OK - time for the rigerous scientific approach here (well - OK - the half-assed semi-scientific Steve Baker method :-)... I'm typing this email as I run the tests...so right now, I don't know the answers... Test 1: Connect two rotation sensors (...) (25 years ago, 24-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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Thanks for all the inputs! After testing out the rotational sensor with teh 25:1 gearing I have discovered that it will count 402 clicks for 1 rotation. So the sesnor is reading only 2 extra clicks easy to fix in the software to get my robot to (...) (25 years ago, 25-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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What kinds of sprocket(s) does Lego currently use with tracks? A long time ago (in decades), I remember a set that used Caterpillar-link-style tracks, and they used a long-toothed sprocket to drive the tracks. It might work to put one of those (...) (25 years ago, 25-Jan-01, to lugnet.robotics)
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| | RE: New guy on the blocks
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Thank you all for the answers. My wife says I can't "play" until I clean my office and I guess this time she's right: I don't have a flat space left in here. I've been reading online a lot and found way too many interesting projects and ideas this (...) (25 years ago, 24-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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I guess I didn't word that very well. I didn't mean that you can make an inaccurate sensor look like an accurate sensor via software. What I meant is that you write your software to know that the sensor is not accurate, i.e. the software doesn't act (...) (25 years ago, 24-Jan-01, to lugnet.robotics)
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| | LEGO Brick Battles
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I’ve started a small (but growing) league of LEGO robot designers. We have our robots engage in different contests, including combat. We’re looking to recruit more members. Specifically, were looking for interested folks in the Chicagoland area. Our (...) (25 years ago, 24-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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"Dean Husby" <nntp@akasa.bc.ca> wrote in message news:3A6E7170.F38BA6...a.bc.ca... (...) accurate sensors would (...) compensate for the inaccuracy (...) disappointed or not to use them. (...) Exactly... you can't. Unless you use another sensor, (...) (25 years ago, 24-Jan-01, to lugnet.robotics)
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| | Re: Cybermaster: Cannot receive though sending works (w/o sprit.ocx)
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Hi, yeah... me I just went through such trouble using Java. The RTS should be 'false'. Then by experimenting I found switching the DTR before and after sending to have some positive effect. I trust you adhere to + starting a session with 'Alive' (...) (25 years ago, 24-Jan-01, to lugnet.robotics, lugnet.robotics.cybermaster, lugnet.robotics.rcx)
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| | Re: Rotational Sensor & Gearing Down
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(...) How do you compensate in software? Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (25 years ago, 24-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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In my experience, rotational sensors are accurate to within +/-5%. 100% accurate sensors would be great, but 95% accurate sensors are still very useful. You can compensate for the inaccuracy in various ways, e.g. in the software. IMHO, this is no (...) (25 years ago, 24-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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"Bob Fay" <rfay@we.mediaone.net> wrote in message news:G7MKLo.2tB@lugnet.com... (...) I'll back that! It's totally hit-and-miss. I've done several tests on different gearings (some running the thing off a micromotor...) and no matter what, they (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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Rotation sensors will lose counts randomly in spite of the firmware. -- Bob Fay California, USA rfay@we.mediaone.net (URL) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | leJOS presentation
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Hello, I'm going to be speaking about leJOS at the O'Reilly Java conference: (URL) March 29 at the Westin Santa Clara. Unfortunately, you can't come see it for free, but I thought it was worth mentioning anyway. Even though the online description (...) (25 years ago, 23-Jan-01, to lugnet.robotics, lugnet.robotics.rcx.java)
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| | Re: Rotational Sensor & Gearing Down
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How fast is too fast? I'm using the firmware from version 1.0 (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Rotational Sensor & Gearing Down
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(...) this seams to be correct :) there might be one problem. If you are to fast, the RCX might loose some ticks. The maximum speed depends on the used firmeware. Carsten (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Rotational Sensor & Gearing Down
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I just got my 1st rotational sensor and have a quick question for you all. I have the following gearing on my robot. Point A gears 8 <--> 40 8 <--> 40 Point B so this is: (5:1) x (5:1) = (25:1) Right? Now if I put my rotational sensor at Point A, do (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: CM-RCX comm
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"What's new": 1) I'm still waiting for my RIS 1.0 (hopefully +2 weeks) + Update to 1.5 so, everything I do still uses the Out<->In of a CyberMaster, comunicating with itself (the poor thing). 2) I ordered also a Dark Side MicroScout, for VLL output (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: LEGO Cam vs. X10's Xcam vs. other webcams
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(...) Yes, I wasn't talking about a perfect digital image input, only mentioned those DV camcorders because of size and image input quality (and auto-focus, optical zoom, steady-cam capability, etc...) ...*and* because I'll more likely spend major (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: What specifically is the difference between RIS1.0 and RIS1.5
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(...) Well, you, like anyone else, can always do a search in www.lugnet.com/robotics Here is a list found at (URL) Marc Klein <marckl@easynet.fr> Subject: Re: Couple Questions Posted-Date: Wed, 19 Jan 2000 19:26:25 GMT On Wed, 19 Jan 2000 02:29:34 (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Very Newbie Question regarding remote control
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(...) that (...) something (...) for (...) PC (...) Good man :) Thats what we like more AI projects on Lego Mindstorms, I myself am finishing a graduate degree off, with my Dissertation centred around Lego mindstorms It's greate almost half my (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | RE: Was (Tank Platform)
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I know this isn't scientific or anything but this is what I have observed. If I have a bot with a "crazy" wheel, the direction that that wheel is pointing when the bot starts moving forward controls the bots direction more than anything else. And it (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Agenda Palmtop (was: Very Newbie Question regarding remote control)
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This looks like an incredibly capable little device. Have you already built anything with it? Pictures? (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Ideal Tank Platform Was: adder-subtractor ????
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(...) I guess - but surely - having an asymmetry in the robot's construction is more likely to cause it not to drive straight than the 1% to 2% due to the motor rotation direction. You may be a 'better' builder than I am - and perhaps be able to (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Ideal Tank Platform Was: adder-subtractor ????
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(...) Yeah, I saw that. nice work, that. I figured I'd throw it in anyway on the principle that eliminating error of any source is always a noble cause. I like to use worm drives to 'turn the corner' anyway to get the extra torque so it's not a (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Very Newbie Question regarding remote control
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(...) Well, the RCX (the computer "brick" that comes with the $200 Mindstorms set) has Infrared communications with the PC. The amount of RAM in the RCX is rather limited for fancy AI stuff - but plenty for taking simple commands *from* the AI (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Ideal Tank Platform Was: adder-subtractor ????
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(...) Well, if you read my *long* post from a week or so ago, you'll know that motor mismatch makes up at least 11% of performance, motor direction perhaps 1% or at most 2%, and HOW YOU BUILD YOUR MODEL accounts for at least 7% ... even when you are (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: New guy on the blocks
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(...) No - I'm a Linux user and *none* of the software on the CD would work for me anyway. You don't need spirit.ocx for NQC programming. Download the firmware file from Lego's web site - that (and NQC which isn't on the CD anyway) is all you need (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | What specifically is the difference between RIS1.0 and RIS1.5
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Does anyone have a part-by-part listing of the differences between RIS1.0 and RIS1.5? I am under the impression, for example, that there is a white clutch-type gear intended to permit a motor to continue turning if the drive train/robot becomes (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Cold Weather Blues
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(...) ... (...) So where in the city were you demonstrating this project? If it's a public gathering, I wouldn't mind attending some day. Matthias Jetleb VA3-MWJ Eglinton & Pharmacy (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Where to find RIS?
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Walmart.com has them (although I'm not sure what version), I ordered one yesterday. When I went to check on availability (put an item in your shopping cart, then in the quantity box put a large number like say 1000. If they have less than that they (...) (25 years ago, 23-Jan-01, to lugnet.robotics)
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| | Re: Interfacing Sharp's GP2D02 Distance Sensor to the RCX
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Ralf, If you don't need great precision, an easier aproach might be my Infra-red Relative Distance Indicator. See the link below. (...) -- Pete Sevcik sevcik@flash.net Techno-stuff Robotics (URL) for FUN ! (25 years ago, 21-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Very Newbie Question regarding remote control
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(...) I have only worked with the RCX under windows 98, and then mostly using NQC (Not Quite C, a nice programming language/environment supplied by David Baum)but here is my two cents. The PC communicates with the RCX brick via an infrared tower (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Where to find RIS?
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Where can I buy the RIS. I would like to stay away from ebay, but it seems that everywhere is on backorder or not available. Please Help. Thank You, Greg Ericksen (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Re: Very Newbie Question regarding remote control
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Mechanically, LEGO is beautiful to work with. The components are well selected for rapid prototyping. For example, you will find that the hole spacing in the beams and the center-to-center distances of the gears ...seem to work well together. (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Re: New guy on the blocks
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I think that unless you are going to write your own communications routines, you will need spirit.ocx, and use its functions to talk to the RCX. If you do not use standard firmware, you will not need the cd. These options are also generally more (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Re: LEGO Cam vs. X10's Xcam vs. other webcams
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|
(...) This is true, in terms of both lighting and resolution. XCam2 is a cheap, wireless camera. Whether its image quality is good enough for you depends on the nature of your project. In my case, as long as it picks up my barcode tags, I am happy. (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Re: New guy on the blocks
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Hi Francois, Like you said, if get the firmware from the Lego Mindstorms site and you use NQC, you should not need anything from the CD. Good luck, Gus (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Same firmware (was: Remote dead, what to do?)
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(...) That 's definitely wrong. Robolab uses the same firmware like RIS. But they use different names. In RIS it is named "firm0309.lgo" and in Robolab they call it "firmware.txt". In Robolab 2.0.1 you can find the file in your Robolab folder: (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Very Newbie Question regarding remote control
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|
Greetings all, I am persuing a grad level course in AI agents, and the course requires that I to do a project. One idea I have is to create a robot and have it do something AI-ish. Since I'm not very adept with hardware, using a Mindstorms robot for (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Re: IR Tower problems
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(...) BTW, this is not true on all hardware, but usually is true on PCs, which is of course what we care about right now. Serial ports are male (IE, have pins in them rather than holes) because part of the RS-232 specification is that you should be (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| |
| | Re: Palmpilot and RCX
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|
(...) Yes. That's basically the idea :) (...) You should mail Charlie (at the omniremote site, there should be an email link) and ask him that question :) (...) Yes. There is an antenna in the Handspring module for sending the X-10 RF messages. (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| |
| | Cold Weather Blues
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|
So I took 'The LEGO Spooler' to a party. Assembled the first group of excited people. Opened the shoe-box, lifted it out, started to say: "This is...". Then, the bottom half disconnected, the top half fell on the coffee table, and in five seconds it (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | pbForth is fun!
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|
I had approached pbForth two or three times in the past, always failing to manage what I thought was a steep learning curve. The truth is I probably was too lazy to put the necessary attention into it, or I was in a hurry to program my robots to (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| |
| | Re: Interfacing Sharp's GP2D02 Distance Sensor to the RCX
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|
am 22.01.2001 15:36 Uhr schrieb Ram Meenakshisundaram unter rmeenaks@olf.com: (...) Hi Ram, please have a look into the data sheets. Then you would say "... the GP2D02 is a very powerful sensor .... but the GP2D12 is better than the GP2D02 for using (...) (25 years ago, 22-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| | Interfacing Sharp's Distance Sensors to the RCX
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|
Hi, I was searching a web page which gives an overview about all the sharp distance sensors. I 've found it. I 'm sure that some of yours will read it. (URL) 22.01.2001 15:36 Uhr schrieb Ram Meenakshisundaram unter rmeenaks@olf.com: (...) Hi Ram, (...) (25 years ago, 22-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Ideal Tank Platform Was: adder-subtractor ????
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|
(...) Ideally: Both motors should be driven in 'forward' direction so if one had a matched set of motors, you could perhaps achieve lateral speed balance. Forward end of tracks should be slightly elevated to grab and climb obstacles: <- Front * * * (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Re: Gearing down a lego motor
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|
from my experience it really depends on the application, if you are working on a walker it usually takes a minimum of 1:12 for most of mine, but i don't know waht you are doing. mike "rubbing the weekend out of his eyes" fusion (25 years ago, 22-Jan-01, to lugnet.robotics.rcx, lugnet.robotics)
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| | Re: LEGO Cam vs. X10's Xcam vs. other webcams
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|
That was not a general statement. The X10's quality is poor for indoor lighting. There are several better wireless digital cameras out there that is far better than the X10, but it costs a lot more. Cant beat the $50 I paid for the X10 via ebay (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Re: Interfacing Sharp's GP2D12 Distance Sensor to the RCX
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|
Hi, Sorry about that I meant the GP2D12 not GP2D02. The subject line threw me off as the original post was about the D02 not D12... Ram (25 years ago, 22-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: LEGO Cam vs. X10's Xcam vs. other webcams
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|
(...) hmmm... I'm starting to think that the best (and expensive) way to have good quality wireless image is to mount the roverbot with a DV camcorder (those tiny new Digital Video expensive cams) together with a X10 wireless video-sender. :( oh (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| |
| | New guy on the blocks
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|
Hi all, I just got a great deal on a RIS 1.5 but it came without the CD. Is there anything on it that I absolutely need to have in order to use the RIS? I can get the firmware from the mindstorm site right? Do I need any extra stuff in order to (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| |
| | Re: LEGO Cam vs. X10's Xcam vs. other webcams
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|
The Lego Cam's quality is much better than the X10 as I have both. The X10 was designed for outdoor only and as such needs a lot of light otherwise the image is dark. The Lego Cam is the same as the quickcam. However, the wireless ability of the X10 (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | LEGO Cam vs. X10's Xcam vs. other webcams
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Has anyone done (or know where to look for) a review on the image quality of the Lego Cam ? I'm interested to know where the Lego Cam stands when compared with other webcams including analog-video mini-cams like the Xcam ? At least, I would like to (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| |
| | Re: Interfacing Sharp's GP2D02 Distance Sensor to the RCX
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|
(...) The GP2D02 is a very powerful sensor for a robot. Getting it to work will really be great. I think the best bet is to use a 9V battery box for this instead of using a precious output port... Ram (25 years ago, 22-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Interfacing Sharp's GP2D02 Distance Sensor to the RCX
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|
"Rainer BalzerowskI" <balze2@gmx.net> wrote in message news:G7K0HL.724@lugnet.com... (...) work out the power supply part. Probably taking all the power from the Motor Output or a 9V battery box so you wouldn't need D3 and D4. (25 years ago, 22-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Interfacing Sharp's GP2D02 Distance Sensor to the RCX
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|
(...) Another option would be a small battery box, if you have enough space in your model. Jürgen -- Jürgen Stuber <stuber@loria.fr> (URL) (25 years ago, 22-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| |
| | Re: Cybermaster: Cannot receive though sending works (w/o sprit.ocx)
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|
This page (URL) by Bert van Dam, has the (URL) link to the QBasic program I was talking about. mc. (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| |
| | Re: Cybermaster: Cannot receive though sending works (w/o sprit.ocx)
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|
Search (URL) page for a link related to DOS comms with CyberMaster. Bert van Dam had (still has?) somewhere in his site a source code of a QBasic program for DOS that he used for CM comms in DOS. It worked, I myself used it with an old i8086 (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| |
| | Re: IR Tower problems
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|
(...) Don't try this at home kids !!!...!!! NO ! This can't work !! The printerport is as parallel port and not a serial port. The availablity of the IR-tower is checked by using the serial handshake line. This can't work with printerport ! (...) I (...) (25 years ago, 22-Jan-01, to lugnet.robotics)
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| | Re: Interfacing Sharp's GP2D02 Distance Sensor to the RCX
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(...) I agree ! (...) How depressing. :-( (...) Of course ! But, it's possible to drive more then one of these sharps with one output. And shouldn't it be possible (without large effort) to use the input-power to multiplex some of the GP2D12 ? (...) (25 years ago, 22-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| |
| | Re: Interfacing Sharp's GP2D02 Distance Sensor to the RCX
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|
Ralf Krause <lego-robotics@crynwr.com> wrote in message news:B691251F.ED3%no...@web.de... Michael, please tell me how you can write that the power can " ... provide 30 mA of power to operate other sensor electronics." As I 've tested it seems that (...) (25 years ago, 22-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| | Cybermaster: Cannot receive though sending works (w/o sprit.ocx)
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|
Hi, I've written a small Visual Basic program so I can use Cybermaster under Windows 3.1x. (So I cannot use spirit.ocx.) Sending commands works (motor on/off, sound, etc.). But I don't get any echo. I cannot get any sensor data, and I can't see if (...) (25 years ago, 22-Jan-01, to lugnet.robotics, lugnet.robotics.cybermaster, lugnet.robotics.rcx)
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| | Re: IR Tower problems
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(...) I think it could probably work with the printr port. But what I would do is get a serial to printer port adapter or buy another wire which ever is cheapest. I have a wire that runs out the serial port with a 25 pin(i think) connection then an (...) (25 years ago, 21-Jan-01, to lugnet.robotics)
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| | Re: Interfacing Sharp's GP2D02 Distance Sensor to the RCX
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|
Hi, I asked this problem a few weeks (or months??? ... I don't know a what time ...) but nobody could help. I got the same following answer ".... the sensor takes 35 mA and this is to much for the RCX ..." but I couldn't understand this at this (...) (25 years ago, 21-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: programming interface i think
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|
Don't shoot me if i'm wrong, but this site seems to be mainly about heat and energy. There is a link about using the RCX with Borland C++. When you download the file, you get the information on how to do this (in english) frank "not much left to (...) (25 years ago, 21-Jan-01, to lugnet.robotics)
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| |
| | Re: IR Tower problems
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(...) Hi Greg, I'm not sure if the RCX IR Tower is the same than the Scout Tower, but I guess it's so. You can't use the printer port (LPT) for the tower. You have to use a serial port (COM1, COM2, ..). If you're not sure if you've got the right (...) (25 years ago, 21-Jan-01, to lugnet.robotics)
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| | Re: IR Tower problems
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(...) Eep!!! Not PRINTER port but the SERIAL port. You'll damage your Port and maybe the IR tower as well! Try it in the SERIAL port and it will work much better. Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (25 years ago, 21-Jan-01, to lugnet.robotics)
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| | IR Tower problems
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I recently purchased an IR tower to use with my Scout. It did not come with a cable, but the tower was only 6$(www.eblok.com), so I found a cable that could plug into the back of it. The other end of the cable fit into the printer plug on the back (...) (25 years ago, 21-Jan-01, to lugnet.robotics)
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| | Beta Release of MacNQC
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Hi all, I have been working on an updated version of MacNQC and am now ready for a public beta. If you are interested in it, it can be found at (URL). There are some new windows to control the RCX and the compile has been updated to NQC 2.2r2. Rob (...) (25 years ago, 20-Jan-01, to lugnet.robotics)
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| | Re: Palmpilot and RCX
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(...) I've just read that version 1.2 of the program will have a programmers interface. Would this allow NQC to be ported to it and be useable for Downloading Firmware, Uploading programs and sending msg codes? With a Visor Platinum would I be (...) (25 years ago, 20-Jan-01, to lugnet.robotics)
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| | Gearing down a lego motor
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Hi, Before I invest a lot of time on this, what is the minimal gearing I need to do in order for a Lego motor to let itself up. How about a lego motor lifting itself and another motor up? I want the motor to be powerful but at the same time fast... (...) (25 years ago, 20-Jan-01, to lugnet.robotics.rcx, lugnet.robotics)
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| | Re: adder-subtractor ????
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Could you give some directive to the maximum size of it in 'bricks'? It would be a challenge to make a small adder-subtracter with a small basis, although it would probably mean that it will become a little higher than usual. Jeroen. ___...___ Visit (...) (25 years ago, 20-Jan-01, to lugnet.robotics)
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| | Re: adder-subtractor update
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Your adder-subtracter looks a lot like my model which I have placed on my website a few months ago. If anyone is interested, you can find step-by-step building instructions on my site, under the Lego Technic-link (URL) Stap ___...___ Visit my (...) (25 years ago, 20-Jan-01, to lugnet.robotics)
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| | RE: Palmpilot and RCX
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Maybe we could just convince someone (Charlie, perhaps) to come up with a Lego IR Tower Springboard module for the Visor?! -----Original Message----- From: Martin [mailto:martin@mediax.com] Sent: Friday, January 19, 2001 2:11 PM To: Dean Husby Cc: (...) (25 years ago, 20-Jan-01, to lugnet.robotics)
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| | Re: Palmpilot and RCX
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(...) It hardly seems necessary, and frankly there's probably not enough of a market to actually go through the R&D phase. It should be quite possible to do IR communication with the RCX/Scout/What have you via Palm IR and/or Omniremote IR. (25 years ago, 20-Jan-01, to lugnet.robotics)
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| | Re: Palmpilot and RCX
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(...) No, at least not yet. Charlie has discussed with me the *possibility* of developing a library that other people could use to do IR communication via the omniremote hardware. This would allow porting NQC to the Palm in a meaningful way. (...) (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: Palmpilot and RCX
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(...) I'm looking at getting a Visor unit. But it depends on what it can do. Can it use NQC and upload firmware/programs etc? My other main use would be a remote that can send messages up to 255. (...) Can you post some URL's on this info? Thanks (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: RCX Firmware (was: Remote dead, what to do?)
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(...) Correct, there is a 16k ROM chip in the RCX that holds the built in functions and code programing code. (For uploading firmware in the first place etc.) Once the firmware is loaded it takes over most of the functions of the 16k ROM. That's in (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: Palmpilot and RCX
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(...) This doesn't always have a low range; Palm V IR and Palm Pro w/2MB upgrade IR are both fairly strong. On other models, yes, the range sucks. Also, there is a omniremote module for the handspring visor which has a very high power IR LED on it. (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: Scanner / Terrain Modeller?
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It was Ben's creation I was looking for. Someone else has lready sent me the project PDF file, thanks for your help though. Gary (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: Scanner / Terrain Modeller?
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(...) I think it was on Ben's lego creation page. (URL) the nameserver for staticip.cx seams to be down today and I can't find the PDF describing the project. Carsten Müller (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: okay, so i'm an idiot WAS :Re: adder-subtractor update
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and i forgot the url again! odin.prohosting.com/...d-sub.html mike "hiding in the corner" fusion "Mike Fusion" <mikefusion@hotmail.com> wrote in message news:G7F3p5.Gn8@lugnet.com... (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | programming interface i think
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i found this in rec.toys.lego (URL) i can't read it, anyone know what it is? something with the borland c++ builder i guess mike "now scratching his head" fusion (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: Scanner / Terrain Modeller?
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I, personally, would take some sort or range sensor and pass it over the model in a grid fashon. You could then take that data into a computer and wouldn't require you to have a camera. I can provide help if you want it. This might be somewhat (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | okay, so i'm an idiot WAS :Re: adder-subtractor update
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thanks to all who remembered what it was, my posting was the last thing i did before going home yesterday and i was rushed. i will update it again today because there is a missing piece between the turning motor and the adder differential. it needs (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: Palmpilot and RCX
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It is possible, but the IR transceiver in most Palms is too weak to control the device from over ~2 feet away. Most people have success with using a Palm i neither of two ways: 1.) Use the serial port to connect to the IR tower. Advantages: full (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: Scanner / Terrain Modeller?
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(...) Oh! I see. OK - then using the Lego camera should be a one place to start. You'll need the power of the PC to turn that into 3D though. There has been some work on the business of turning a LOT of 2D images (taken with a video camera or (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: robolab/rcx/scout/send mail command
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(...) Yes. I've been doing that a lot recently...under NQC that is. (...) Dunno about robolab. On either the RCX or the Scout, I've been using: x = Message() ; to read a message (x==0 if no message has arrived) ClearMessage() ; ...to erase the (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: Swedish article about real-size LEGO car
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(...) ___...___ SOPORCEL,S.A. +351-233940411 Dp.Sistemas de Informacao - Sv.Desenvolvimento mailto:marco@soporcel.pt +351-233900312 (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: adder-subtractor update
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LOL, ok, final URL: (...) (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Re: Swedish article about real-size LEGO car
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(...) Found one! (URL) Manni - 070-5850517 -"Do not take life too seriously.You will never get out alive." (25 years ago, 19-Jan-01, to lugnet.robotics)
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| | Swedish article about real-size LEGO car
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(URL) Company is planning to build a real-sized car that's made with children in mind. I hope some can find a english article about this... //Harri Manni - 070-5850517 -"Do not take life too seriously.You will never get out alive." (25 years ago, 19-Jan-01, to lugnet.robotics)
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