 | | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) So, according to the Agilent Technologies web site, these sensors are tiny cameras that take 1,500 pictures per second (!) - they claim 400 'clicks' per inch at speeds up to 12 inches per second. That seems pretty good for a robot - there (...) (23 years ago, 30-Jun-02, to lugnet.robotics)
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| | optical mouse chips as vision sensors?
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(URL) makes the optical mice components and has shipped over 12 million. The link above has some explanation of how they work. It's an interesting idea to see if these could be adapted for robotics. Bruce (23 years ago, 29-Jun-02, to lugnet.robotics)
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| | Re: How do I switch other devices with my RCX.
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Hi, I was wondering: isn't it feasable to use a transistor in stead of a relay? B: What kind do I use? (And how will I regognize it?) Thanks again! Remko (23 years ago, 29-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) <blush> (...) Well, where you get the chips is you pull apart a mouse these mice are pretty cheap these days. The software and control logic is all inside the mouse - they don't have any special drivers in the PC. Hence, the protocol is the (...) (23 years ago, 29-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) Out of a mouse? Simon, expert at stating the obvious. (23 years ago, 29-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) tiny (...) suitable (...) What a good idea. Does anyone know how they work and where to get the chips? Peter (23 years ago, 29-Jun-02, to lugnet.robotics)
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| | Re: Light Sensor Problem
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I had similar problems, so I added a bit of code to display the light sensor value on the LCD. I then placed the bot on the test pad and observed the various numbers as it crossed from white to green and black. I then updated the linetrack.c with (...) (23 years ago, 29-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Control a microScout
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Hi Juan!, It's good to see another venezuelan in this group. I thought I was alone... Steve Baker gave you a very good explanation. I think however that you could check (URL) you're already into NQC you can use this lib to send commands to the (...) (23 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Dead reckoning (was Re: Rover Programming)
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Hi Simon, In my experience casters can introduce errors in the navigation since they tend to not be in the correct position following a turn. Over time this small error can add up. I have had some success by rebuilding my bot to center as much of (...) (23 years ago, 28-Jun-02, to lugnet.robotics)
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| | Linux driver for USB tower
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Hi, I have a working linux driver for the lego USB tower; so far it has only been tested on kernel 2.4.14 on a uhci system, where it has worked without any problems. Anyone feel like testing it out on their own system (to use it, you will need to be (...) (23 years ago, 28-Jun-02, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx.pbforth)
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| | Re: Dead reckoning (was Re: Rover Programming)
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(...) Well, I did the code changes to do acceleration and deceleration yesterday and it's amazingly successful. I'm not yet quite as good as the Seattle robot, but I suspect that's at least partly because mine has a narrower track. I now believe (...) (23 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Dead reckoning (was Re: Rover Programming)
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(...) WOW! That's impressive - but I can't help but get the impression that it's heavily optimised to going around that particular track. Getting that good positioning on the straight sections is impressive - but I wonder how it would have fared in (...) (23 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Dead reckoning (was Re: Rover Programming)
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(...) Yes - managing accelleration is a 'must'...both in speeding up and slowing down - and easing into turns. An abrupt change of speed will generally result in wheel slip. (...) It was good in a straight line - but *hopeless* in a turn because the (...) (23 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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(...) Yes - and it's very fast to implement. Better still, you can use one of several rectangle encoding tricks that are out there (kind of like two-dimensional run-length encoding). Those are typically able to compress at the square of the ratio of (...) (23 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Control a microScout
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(...) Well, the RIS 2.0 tower can drive the microscout - but not the RIS 1.5 tower. The microscout uses something called 'VLL' (Visible Light Link) - which is kinda like the IR commands that you send to your RCX - but they are sent in the visible (...) (23 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) I meant the error due to things like refraction around solid objects, reflections, etc. Also - I didn't mean estimating and correcting for it at runtime - I just wanted an idea of what sort of magnitude of error those effects presented. (...) (...) (23 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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Steve (...) and (...) If it were me, I'd program a PIC chip to do everything and then deliver the results to the RCX. But I'm not a Lego purist. (...) Tradition had it that with three radio beacons and three hyperbolae you'd get three lines (...) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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(...) needs (...) uncompressing (...) Run-Length-Encoding (RLE) should work well on a blobby black-and-white map. Or you could store line N as the difference (or XOR) between line N and line (N-1). The difference would be mostly zero. Then RLE it. (...) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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<snip> (...) </snip> I hear dogs do a lot of that also... ;) -Rob (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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I've been thinking a bit about using landmarks imitating ants. You should know that ants use different types of self-produced chemicals to mark the places they have been and the paths to follow. Using this with robots would mean using a light sensor (...) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Control a microScout
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Greetings from Venezuela!!! How can I use a MicroScout as a third motor on my RCX, I own a RIS 1.5 and a DDK or Can I control the MicroScout from the IR Tower? Thanks!! Juan (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Dead reckoning (was Re: Rover Programming)
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(...) If you haven't already, check out (URL) was able to get quite precise dead-reckoning w/ a Lego bot by programming a PID-type controller. - Gareth (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: control multiple mindstorms robots using 1 IR tower!
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(...) found it! BattleBricks at (URL) the "Remote Control" link under "Support" on the sidebar on the left. (23 years ago, 27-Jun-02, to lugnet.robotics.rcx)
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| | Re: pbForth vs RCX 1.0
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Thanks, Just to make sure, let's take an example. Let's say that I have two RCX, named A and B. What if the program in RCX B is waiting for a character on the instruction KEY and RCX A sends a character, let's say '5' (ASCII 52) with 52 EMIT ? That (...) (23 years ago, 27-Jun-02, to lugnet.robotics.rcx.pbforth)
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| | kits on sale - Toronto area
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I was recently at the Cookstown factory outlet (located at highway 400 and 89, north of Toronto) which has a LEGO outlet store. The store currently has Vision Command on sale for $52.99 Can (regular price $149.99) and Exploration Mars $49.99 Can (...) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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(...) Try this (leJos): import josx.platform.rcx.*; import josx.util.*; import josx.robotics.Navigator; public class Test { public static void main (String[] arg) throws Exception { int size = 100; Navigator nav = new RotationNavigator( ( float)8.5, (...) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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(...) While we're talking about programming rovers, could someone give me an example of a 'spiral drive around behavior' in either RCX Code (v1.5) or Gordon's Brick Programmer? Or how about code with two rotation sensors attached to the (...) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Dead reckoning (was Re: Rover Programming)
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(...) A systematic search pattern is one solution. Not being too anal about it is another - random walking the domain will eventually explore the whole of it, although increasingly inefficiently as time goes on. (...) It's killing me. My first (...) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: pbForth vs RCX 1.0
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"Mario Beaulieu" <mariobeaulieu@videotron.ca> writes... (...) Yes. I run pbForth on RCX 1.0, 1.5 and 2.0. No differences. (...) No, to my knowledge. In pbForth the IR port is entirely devoted to communication between the brick and the terminal. (...) (23 years ago, 27-Jun-02, to lugnet.robotics.rcx.pbforth)
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| | Light Sensor Problem
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Hello, I have been trying out the demo programs in legOS. all demos worked fine except linetrack.c. When I download linetrack.lx in the RCX (RCX2.0) and put it on the test pad that comes with mind storm the bot goes srtaight. It does not recognize (...) (23 years ago, 27-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Rover Programming
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(...) So how do you remember what you've already explored? I think you *need* three states if you want your robot to curiously explore it's environment without continually re-exploring areas that it's already visited but which proved to be empty. If (...) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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(...) It's the opposite of impoling. ---...--- Steve Baker ---...--- Mail : <sjbaker1@airmail.net> WorkMail: <sjbaker@link.com> URLs : (8 URLs) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) So with the speed of sound being something like 300 meters/second, sounds spaced 100mSec apart would travel about 30 meters before the next sound started. That's a pretty reasonable distance. If you could measure the arrival time to within (...) (23 years ago, 27-Jun-02, to lugnet.robotics)
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| | Any news on USB support for linux?
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Hi there, Is there any news on the development of support for the USB IR tower under linux? I found a HOWTO on the net by Ryan Simmons which claims to be able to get the tower working using a patch written by Bret Thaeler. (URL) anyone been able to (...) (23 years ago, 26-Jun-02, to lugnet.robotics.rcx.legos)
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| | pbForth vs RCX 1.0
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Hi, Is pbForth fully compatible with RCX 1.0? Can RCX 2.0 communicate with RCX 1.0 in pbForth (using IR ports)? Thanks Mario (23 years ago, 26-Jun-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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This thread seems to have been going on for such a while I've forgotten where it started. Was the original question: how does my robot know where it is in a room? Has anyone suggested ultrasonic (or audio) "beacons" in each corner of the room? The (...) (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | usb under windows
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Hello! I purchased a Mindstorms 2.0 with USB tower half a year ago and now I want to play with it... My computer is running WinMe so I downloaded the winlegos.exe package from the legos page. When running firmdl3 it complains that it can't find the (...) (23 years ago, 26-Jun-02, to lugnet.robotics.rcx.legos)
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| | liblnp for windows
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hi there, we have ported liblnp for windows, with vc++ 6.0. the daemon lnpd still has to run under linux. where can we put the source for the benefit of all? michael ps: could it be lnp was broken from legos-0.2.5 to 0.2.6? (23 years ago, 26-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Friction on Rotation Sensor
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Yes, Gregory, I'm sure. When I mention the sensor I mean the whole thing, not only the eletronics part. I tested both sensors and I tried to tilt the axle to test the behaviour you mentioned. After playing with it a little, it seens the casing don't (...) (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | pbForth questions
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The output of my compiler typically looks like: \ Begin code sample FORTH CODE ... ... : ENTRYPOINT ... ; 0 ENTRYPOINT \ End code sample Or, in other words, I'm currently (and this isn't permanent) not allowing programs to be compiled that do not (...) (23 years ago, 26-Jun-02, to lugnet.robotics.rcx.pbforth)
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| | Re: OT word definition... (was Re: Rover Programming)
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(...) "Gondolier" I believe it is. (URL) thinhk calling them a pusher may get YOU retired. :-) FUT o-t.fun (23 years ago, 26-Jun-02, to lugnet.robotics, lugnet.off-topic.fun)
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| | OT word definition... (was Re: Rover Programming)
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Maybe it refers to a gondola, uhm, pilot? Driver? Pole pushing person? Who is either retired or on break. :-) -- Baha Baydar bbaydar@hfx.eastlink.ca ----- Original Message ----- From: "Ralph Hempel" <rhempel@bmts.com> (...) (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | RE: Rover Programming
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(...) I meant to write: (...) I'm just making sure that nobody thinks expoling is an actual word. And if it was, I wonder what it would mean? Cheers, Ralph (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | RE: Rover Programming
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Steve Baker Wrote: (...) I'm going to add a proviso here - when you hit something that you shouldn't have hit! Anyways, this is a very interesting idea, Steve. The bitmap analysis is fine. I don't think any of us with kids and a reasonably large (...) (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | Re: Friction on Rotation Sensor
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Are you sure it is the sensor itself? We have found that the axis is often "off" a bit from canonical LEGO spacing, and if built into a structure, binds quite a bit. But if you assemble it so that the body (blue) of the sensor can "float" with (...) (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | Re: Error opening //./legotower1
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/ted (and Ingolf) Thanks for this pointer. It works. /ed OOPS that should be \ed (...) (23 years ago, 26-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Rover Programming
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(...) That's one solution, but it isn't essential. The other solution is to assume every square is empty until you've explored it. Obviously, if you get a 'goto' instruction before you've completely mapped the domain, then there's a possibility that (...) (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | Re: Friction on Rotation Sensor
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(...) I'd describe the problem to LEGO customer service, they'll probably replace it. Jürgen (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | Re: Friction on Rotation Sensor
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Hi Mauro, Am Dienstag, 25. Juni 2002 22:54 schrieb Mauro Vianna: ... (...) ... the same for me. I thought of sending it back to the german distributor of Lego DACTA from where I got mine. Regards, Michael. (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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(...) Yep - VERY difficult. (...) It's *really* hard with any of the Lego Firmware options (eg NQC) because you can't access really large amounts of RAM. However, you could stand a chance with LegOS and GCC. (...) Unfortunately, you need THREE (...) (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | Re: Friction on Rotation Sensor
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Here is a picture of the internals of the Rotation sensor. I don't know if this will help you. (URL) Fay THE SHOP (URL) Vianna" <mauro_vianna@hotmail.com> wrote in message news:GyA4r2.612@lugnet.com... (...) somebody (...) (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) I don't want to cover the entire floor - just place a *few* of these things on the floor as landmarks. The idea is that the robot would run over one of these things, figure out exactly where it is (both position and heading) - and then use (...) (23 years ago, 26-Jun-02, to lugnet.robotics)
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| | Re: control multiple mindstorms robots using 1 IR tower!
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yes - have to use messages - there's an app somewhere that allows multiple RCXs to be RCed that was developed for BrickWars I think, multiple games pads on one PC control an RCX each. Principle is, each RCX is coded to obey a set of messages in a (...) (23 years ago, 21-Jun-02, to lugnet.robotics.rcx)
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| | Re: Error opening //./legotower1
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Ed - Take a look at patch [568061] posted on SourceForge by 'Ingolf'. The problem looks easily resolved by changing the '/'s to '\'s. I have not had a chance to verify this fix myself yet. /ted "Ed Manlove" <emanlove@ieee.org> wrote in message (...) (23 years ago, 25-Jun-02, to lugnet.robotics.rcx.legos)
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| | Friction on Rotation Sensor
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Hi, All. I'm having a problem with a rotation sensor and I was wondering if somebody already solved that. I have 2 rotation sensors. One of them works fine. The other one works well as a sensor but the rotating axle has considerable friction. Since (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: All Terrain Crane
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Wow! Jennifer, your work never ceases to amaze me. So much detail, so many complicated sub-systems, so little room for it all! Yet again another great model to marvel about. I'd like to also congratulate you on the excellent presentation you have (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: All Terrain Crane
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Excellent explanation, Jennifer (and amazing model too!!!). I just want to note to everyone that LEGO themselves modifies their own parts in their theme parks. In California, they use machined parts and motors from a custom machine shop adjacent to (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: All Terrain Crane
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"Steve Baker" <lego-robotics@crynwr.com> (...) Heresy schmeresy! Criticism is welcome! I feel the painted parts are the Right Thing here, only one type of brick is involved (1x7 liftarm) and the model had been built with the assumption that a white (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: All Terrain Crane
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"Simon Bogaert" <lego-robotics@crynwr.com> wrote in message (...) drive-axle (...) To be honest I have no idea! It certainly bears a lot of weight and is subject to a lot of friction when the wheels are steered, but I've not had it apart to check (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks
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(...) Mauro, sorry if it is obvious (I am anovice here) you could connect the two wheels' axles to a differential (reverse one of the rotations). If the differential's body is stationary, the two wheel are rotating at same speed. (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: Lego Team Challenge or RIS?
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(...) Can I just confirm the view that the team challenge kit is the best bet. It is based on the v1.0 mindstorms package, which has several pieces different to RIS v2.0, but mostly this is advantageous: External power socket for RCX - good for (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: All Terrain Crane
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(...) Hee! Purism, of any sort, rests on a foundation of an assertion of wholeness. "There is no need" says the Purist, "of anything outside of The System, because The System is Whole and Complete." And for the record I say this about well roasted, (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: Lego Team Challenge or RIS?
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I think we'll probably go with Team Challenge, but I have a slight problem. I'm using MS RIS 2.0 with a serial port. Dacta offers a software upgrade for $30 to 2.5. However, I'm not sure if it will only run off USB. Well, maybe a call to Dacta (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) Reducing the rotation sensor speed will probably get things worse: precision loss (less ticks per turn) and _more_ lost counts (see www.philohome.com/se...gorot.htm) Philo www.philohome.com (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: Lego Team Challenge or RIS?
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(...) The $30 is probably for the Teachers Guides which I hear are pretty good. Given the short time left before the class I think you should grab any materials they offer. It will take a little while to get up to speed with ROBOLAB. I think you (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: Lego Team Challenge or RIS?
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(...) I think you might be confusing Robolab with the older Control Lab product. Control Lab is (was?) an I/O box that connects to a computer via RS-232 and allows control of 8 motors, 4 passive sensors (touch/temperature) and 4 active sensors (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: Lego Team Challenge or RIS?
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(...) I think its the flexability...the robolabs offer additional inputs and outputs, and offer direct connection from the computer to the RoboLab Interface. Yes, the RIS does have the USB Infared Transmitter/Receiver, the allowance to program on (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: All Terrain Crane
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I can't figure out which is the greater sin: violating Lego Purist theology or critisizing a Lego Goddess. Then there's my sin: spending two hours reading, marveling, and, dare I say, worshipping Jennifer's work when I should be in bed. Some of the (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Lego Team Challenge or RIS?
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I've been working towards teaching a one week robotics class this summer with a friend using MindStorms RIS 2.0. The class is still 3 weeks away. The director went to order the kits and ended up contacting Dacta, which is the educational arm of (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: All Terrain Crane
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Whilst it's undoubtedly herasy to criticise one of Jennifer's gorgeous models, and I'm sure I'm gonna get flamed for saying it - but I can't help feeling that an unfortunate line has been crossed - with painted parts, modified parts and (...) (23 years ago, 25-Jun-02, to lugnet.robotics)
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| | Re: All Terrain Crane
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So this is what you've been doing all that time... ;-) I look at your pages (haven't read the page on the crane yet, but the pictures seem promising - reading will be something for tomorrow) and realise that you've been doing what I've been trying (...) (23 years ago, 24-Jun-02, to lugnet.robotics)
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| | Re: All Terrain Crane
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Hi Jennifer: I don't write much to the board, but I do read everything posted. I just wanted to let you know how much I enjoyed visiting your site. It's going to take some time to read everything you have posted there but then again thats the fun of (...) (23 years ago, 24-Jun-02, to lugnet.robotics)
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| | All Terrain Crane
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I've completed the web page for my model of a Demag AC50-1 all terrain crane and put it online here: (URL) model is entirely radio controlled and features some new gadgets from John Barnes. DAT files of the workings are there as well as some videos, (...) (23 years ago, 24-Jun-02, to lugnet.announce.moc, lugnet.technic, lugnet.robotics, lugnet.build, lugnet.loc.uk, lugnet.modelteam) !!
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| | Error opening //./legotower1
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I am getting a common (apparent in the legos newsgroup) error "Error 53: Opening //./legotower1" when I try to download a program. I do successfully use firmdl3 to download the kernel even using the --tty=usb option. But when I try to download a (...) (23 years ago, 24-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) which (...) direction (...) Somebody in this list already tried a pattern with 4 colors. If you can have all your floor covered with squares with 4 distinct colors, you can detect your aproximate position and direction. Unfortunatelly that (...) (23 years ago, 24-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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(...) OK, why does it need to communicate with the PC? The primary problem is dead reckoning navigation - which is hard on the 'out of the box' RIS because it's very hard to make a robot that can turn a controlled amount or travel a controlled (...) (23 years ago, 24-Jun-02, to lugnet.robotics)
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| | *** name poll 2nd phase: make your votes ***
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Now is YOUR turn. I've collected the names and present them at the end of this posting. You can vote for ONE ( 1 ) name. Send an eMail to legOS-namepoll@gmx.de with: - the name you vote for - a phrase, choosen by you for example: I vote for: (...) (23 years ago, 24-Jun-02, to lugnet.robotics.rcx.legos)
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| | legOS new name: a remark
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some of you may have noticed that I didn't include some names. I contacted the LEGO group and asked them about their feelings for a new name. I got the following answer: The new name should not include any of our trademarks, such as: LEGO, (...) (23 years ago, 24-Jun-02, to lugnet.robotics.rcx.legos)
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| | serial wiring problems
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Hi, I’d like to connect a PAK VI PS/2 coprocessor to the Handyboard using its serial port. I’ve taken a RJ-11 telephone cable and cut it into two pieces, so that I’ve got on one side the leads of the cable without the RJ-11 plug which I want to (...) (23 years ago, 23-Jun-02, to lugnet.robotics.handyboard)
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| | Re: How do I switch other devices with my RCX.
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(...) AHAHAAHAHAHAHAHAHAHAHAHAHAAA! (my kind of humor) O, man, a day without laughter is a day not lived! For a more serious approach: see response to the other response. Thanks anyway, Chris! :D (23 years ago, 23-Jun-02, to lugnet.robotics)
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| | Re: How do I switch other devices with my RCX.
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Thank You, Rob, for your quick response. Judging from the two comments I've received, I should have elaborated a bit. I wanted to use a relay to switch the other circuit, but the it wasn't exactly clear to me what specifications the relay should (...) (23 years ago, 23-Jun-02, to lugnet.robotics)
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| | Re: How do I switch other devices with my RCX.
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Use the output (A, B, or C) to turn on the relay (you can pick those up at Radio Shack or wherever). The relay could be used to switch on a separate power source to power whatever device at whatever power/voltage you deem necessary. -Rob "Da Byte" (...) (23 years ago, 23-Jun-02, to lugnet.robotics)
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| | Re: How do I switch other devices with my RCX.
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(...) Simply pick up the other device and set it aside, then place the RCX in the location where the other device was. Tada! You have now switched the other device with your RCX! (23 years ago, 23-Jun-02, to lugnet.robotics)
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| | How do I switch other devices with my RCX.
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Hi! Problem: I want to switch other devices with my RCX. Does anyone know a feasible solution to this problem? Thank You! Da Byte (23 years ago, 22-Jun-02, to lugnet.robotics)
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| | Spybotics
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I don´t know if you have already seen this but maybe you can get some more info from it. (URL) (23 years ago, 22-Jun-02, to lugnet.robotics)
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| | Re: RCX infra-red code
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hi Vincent, you might take a look here (URL) Mientki (...) In lugnet.robotics.rcx, Vincent Grace writes: (...) (23 years ago, 22-Jun-02, to lugnet.robotics.rcx)
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| | RCX infra-red code
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Hey! Does anyone know what signals to send from a non-mindstorms infra-red transmitter to the RCX? (For instance how to send "message 1" to the RCX.) You can e-mail your answers to <kttgrace@eircom.net>. (23 years ago, 17-Jun-02, to lugnet.robotics.rcx)
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| | Re: Syngress Web Site For Ferrari's Mindstorms
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(...) I can confirm you that Syngress quickly solved the problem and those pages are now updated. They're also receiving more errata so they can put those on the site as well. If someone wants to report an error on the book, please write to: (...) (23 years ago, 21-Jun-02, to lugnet.robotics)
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| | control multiple mindstorms robots using 1 IR tower!
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Hi all! I'd like to control multiple mindstorms robots using one IR tower with replacing the default firmware for RCX unit to leJOS! Is it possible? I do consider the problem of how to distinguish the different RCX units inside the robots within the (...) (23 years ago, 20-Jun-02, to lugnet.robotics.rcx)
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| | Re: Pole-Balancing Robot
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(...) Wow! Is that ever fun to watch! I'm going to try to make one of my own now. Nicely done Iain! Keep up the great work. Dave!! (23 years ago, 20-Jun-02, to lugnet.org.ca.rtltoronto, lugnet.robotics)
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| | New blank Handy board PCB for sale
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HI I have some surplus Handy board (blank) PCB for sale. If you are interested have look at (URL) (23 years ago, 20-Jun-02, to lugnet.robotics.handyboard)
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| | Handy board PCB for sale
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HI I have some surplus Handy board (blank) PCB for sale. If you are interested have look at (URL) (23 years ago, 20-Jun-02, to lugnet.robotics)
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| | Re: Pole-Balancing Robot
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(...) Perhaps if you succeed you can call it a Legway? (23 years ago, 20-Jun-02, to lugnet.org.ca.rtltoronto, lugnet.robotics)
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| | RE: Robotic Vision (was: Video image analisys)
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I'm really starting to like this idea. ...wish I had the time *and knowledge* to do a HyperRvCAD :) Examples: (ASCII ART ALERT, use FIXED FONT to see): [VP]>-vs->[DTVP]>-vs...[ZF]->[DT] [DTVP]>-ds(x,y)->[DI...y,m)->[ZF] (...) (23 years ago, 20-Jun-02, to lugnet.robotics)
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| | Re: DJGPP & LegOS
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Dave, This files are also located on the legOS website (URL) am currently trying to find any information about the process to build these using the current set of tools (gcc, legOS, etc) Ed David Chen <dcchen@pacbell.net> wrote in message (...) (23 years ago, 20-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: DJGPP & LegOS
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I had once burned a CD-R with the entire conents of my DJGPP and LegOS directories with working binaries for firmdl.exe (for uploading your .srec firmware, includes the fast Xmit mode) and dll.exe (for loading your compiled programs) for someone who (...) (23 years ago, 20-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Syngress Web Site For Ferrari's Mindstorms
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(...) You should tell them (or me and Mario) about the errors you've found, so they can add them to the errata. With both IE5/6 and Mozilla1.0 the NQC programs, links, and E-Book download work fine (of course, you can download the electronic version (...) (23 years ago, 20-Jun-02, to lugnet.robotics)
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| | Re: Pole-Balancing Robot
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(...) And for an even bigger challenge, allow the pole to tilt in both X & Z directions! ROSCO (23 years ago, 20-Jun-02, to lugnet.org.ca.rtltoronto, lugnet.robotics)
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| | Re: Pole-Balancing Robot
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(...) That's really cool! The video rocked--it's really quite nifty to see a robot trying to adapt in realtime to its situation. Iain suggested we do something like this for rtl13. Though that is a while off (we still have 11 and 12 on deck for the (...) (23 years ago, 20-Jun-02, to lugnet.org.ca.rtltoronto, lugnet.robotics)
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| | Re: Pole-Balancing Robot
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"Rob Hendrix" <rob.removebeforesen...msltc.org> wrote in message news:GxzHCA.M1A@lugnet.com... (...) interested in this problem as well. Iain (23 years ago, 20-Jun-02, to lugnet.org.ca.rtltoronto, lugnet.robotics)
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