 | | IR Tower and USB-Serial adapter
|
|
Hi, all I have a problem trying to connect a serial IR tower to my notebook. The notebook has no serial port, so I'm using an USB-serial adapter. Although this adapter worked for another device, it seens it is not working properly with the IR tower. (...) (23 years ago, 2-Jul-02, to lugnet.robotics)
|
| |
| | RE: Displaying info while debugging
|
|
(...) Mario, I did some checking and I think the real issue is with the USB driver from LEGO. The serial tower does not exhibit this behaviour. It has its own problems, which include falling asleep after 2 seconds of inactivity. So, as far as I can (...) (23 years ago, 2-Jul-02, to lugnet.robotics.rcx.pbforth)
|
| |
| | The clock is ticking
|
|
Don't forget that BrickFest 2002 is only a couple of weeks away, and there are some good prizes just waiting to be picked up. Friday, July 19 The Technic Competition - Scree Runner 1st - 8466 4x4 Off-Roader 2nd - 8735 Power Pack Saturday, July 20 (...) (23 years ago, 2-Jul-02, to lugnet.technic, lugnet.robotics, lugnet.events.brickfest)
|
| |
| | make a mindstorms robot as telerobot!
|
|
Hello, everyone! It's my first time to send a message here! I've a project which requires me to make a mindstorms robot as telerobot. I'd like to use Java as core control programming language! So far, I just know there're several kinds of (...) (23 years ago, 2-Jul-02, to lugnet.robotics.rcx)
|
| |
| | Re: Ant pheromones
|
|
See, I told you it was a good idea... ----- Original Message ----- From: "Albert Huang" <sfitw@hotmail.com> "Steve Hassenplug" <hassenplug@mail.com> wrote in message news:20020701181335....ail.com... (...) funny. (URL) ___...___ Talk More, Pay Less (...) (23 years ago, 2-Jul-02, to lugnet.robotics)
|
| |
| | HOWTO Demo.c
|
|
I was able to fix the previous problem regarding the light sensor Thank u Joseph Woolley for your reply. I have another one In the legOS Howto their is a demo code demo.c which has some task switching examples I am having trouble with the following (...) (23 years ago, 2-Jul-02, to lugnet.robotics.rcx.legos)
|
| |
| | HOWTO Demo.c
|
|
I was able to fix the previous problem regarding the light sensor Thank u Joseph Woolley for your reply. I have another one In the legOS Howto their is a demo code demo.c which has some task switching examples I am having trouble with the following (...) (23 years ago, 2-Jul-02, to lugnet.robotics.rcx)
|
| |
| | Re: pbForth vs RCX 1.0
|
|
(...) Yes, please :-) I actually knew the EMIT and KEY words, but had never thought of using them to make two RCXs communicate. For some stupid reason in my head I was expecting some special API words was necessary to manage this communcation, while (...) (23 years ago, 2-Jul-02, to lugnet.robotics.rcx.pbforth)
|
| |
| | RE: Linux driver for USB tower
|
|
(...) Richard, That's great, but I just realized there is no URL....how can we test it if we can't find it? :-) Cheers, Ralph (23 years ago, 2-Jul-02, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx.pbforth)
|
| |
| | Re: Ant pheromones
|
|
"Steve Hassenplug" <hassenplug@mail.com> wrote in message news:20020701181335....ail.com... (...) 'wall' around the edge, to keep your robot inside. (...) or a test sumo ring. (...) funny. (URL) me if you want more info. cheers, albert (23 years ago, 2-Jul-02, to lugnet.robotics)
|
| |
| | RE: optical mouse chips as vision sensors?
|
|
(...) We're checking into buying the parts from Agilent and making a plug on sensor for JCX -- which will finally ship late this summer. I wonder about using a white LED and RGB filters on three sensors, then you'd get color information too. Useful (...) (23 years ago, 2-Jul-02, to lugnet.robotics)
|
| |
| | RE: optical mouse chips as vision sensors?
|
|
(...) No, pbForth can easily read arbitrary chars coming in on the IR prot, we'd just need to switch the RCX to 1200 baud... (...) John, If you send me a modified mouse, I'll do the other Forth stuff needed to get this working in a weekend. Cheers, (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | RE: CPR for RCX?
|
|
(...) ld is a linker. It takes the object code generated by the assebles and "links" it together to form an image that can be loaded. The file: ld/h8300_rcx.ld specifies how the objects are stiched together. (...) No, the firmware uploader splits (...) (23 years ago, 1-Jul-02, to lugnet.robotics.rcx.pbforth)
|
| |
| | Re: Ant pheromones
|
|
(...) Is your floor carpet or hard? Makes a diff. Have it dispense reflective stickers on the floor every so far. Then when you're done playing just peel them up. You could even go around and peel them up to emulate the evaporation of the pheremone. (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | RE: optical mouse chips as vision sensors?
|
|
(...) What about using a cordless mouse? One could fiddle withthe optical problems first and could use the normal IR tower to send position information to the RCX. Michael (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | RE: Ant pheromones
|
|
When I was younger, my grandmother worked for a newspaper and would bring home leftover rolls of paper. Usually, the rolls were several feet wide and had 10-20 feet of paper left on them and they were free. Look up plotter paper suppliers and (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | Several hardware questions.. Laser link Hardware expansion n' more
|
|
Hi - I posted a letter just before and I don't know If it went thru. I take it again there - Is there some hardware modifications to Mindstorm so it can have more IO ports - like more Motor control ports and more sensor ports? - And a second thougt (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | RE: optical mouse chips as vision sensors?
|
|
Since the optical mouse is a miniature camera, the same type of principal could be applied using the Lego Camera, maybe even with a custom template in VC. This would at least be an "all lego" solution (for the purists out there). The focal point (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | Re: optical mouse chips as vision sensors?
|
|
This whole thread just caused an interesting thought to pop into my head, although I suspect it would only apply to cases where LegOS were being used. If the mouse serial port output (transmit line) were to be connected to a LMC555 (running at (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | RE: optical mouse chips as vision sensors?
|
|
One other interesting thing about this idea-- If it works, not only will you get the optical sensor, but you can probably get up to 5 touch sensors and a rotation sensor at the same time. I'm not sure how the signal is sent, but will the RCX be able (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
Just use the bottom half of the mouse, trimmed as much as possible, as a skid plate. It will need to be mounted to allow vertical movement, but it should work alright. This wouldn't solve the spin issue, but the clearance shouldn't be a problem. A (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | Re: CPR for RCX?
|
|
(...) I knew Assembler would come into play sooner or later. I have downloaded a copy of the H8/300 Assembly language spec. What I still don't understand is how you turn the object code into 'S'-type records with 'ld'? (...) Can I assume the RCX has (...) (23 years ago, 1-Jul-02, to lugnet.robotics.rcx.pbforth)
|
| |
| | Re: Ant pheromones
|
|
Another idea would be to get a big piece of dry erase (white board). I got a 4x8 ft piece from Home Depot for about $10. Then, your ant could draw all over the 'floor'. You could put a black 'wall' around the edge, to keep your robot inside. This (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | Ant pheromones
|
|
As I wrote in my last mail I'm planing to build a system for robots guidance and communication similar to ants. I can't get a big enough paper and I can't paint my floor so anyone has an idea of how to 'draw' a path without damaging my floor. The (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | Re: Syngress Web Site For Ferrari's Mindstorms
|
|
(...) The Annotations and Corrections section of the site has been updated. Sorry for the long delay. I have received some errata by email, and had all of them in a well organized file... just on my computer :-) If you discover any further mistake, (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
|
| |
| | *** name poll: make your votes reminder ***
|
|
This is a reminder for all of you who have not voted for the new legOS name. 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 (...) (23 years ago, 1-Jul-02, to lugnet.robotics.rcx.legos)
|
| |
| | RE: optical mouse chips as vision sensors?
|
|
And then check out the language he used to hack into the mouse data stream....yep it's FORTH. Not surprising as New Micros Inc was one of the first vendors of single board computers with Forth as the control language... Cheers, Ralph (...) (23 years ago, 30-Jun-02, to lugnet.robotics)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
I'm certain that the optics need to be insanely close to the surface they are monitoring, causing a clearance problem. If such a device was hacked, would placing it in the center of a synchro or Killough platform prove useless in a spin? Rob (...) (...) (23 years ago, 30-Jun-02, to lugnet.robotics)
|
| |
| | Re: How do I switch other devices with my RCX.
|
|
(...) It all depends on what you want to switch, maybe you should explain your prject a bit more. Jürgen (23 years ago, 30-Jun-02, to lugnet.robotics)
|
| |
| | Re: optical mouse chips as vision sensors?
|
|
check out (URL) Boyes <lego-robotics@crynwr.com> schrieb in im Newsbeitrag: 5.1.0.14.2.200206291...ion.com... (...) (23 years ago, 30-Jun-02, to lugnet.robotics)
|
| |
| | RE: pbForth vs RCX 1.0
|
|
(...) What you describe would work exactly. Normally, the "outer interpreter" of pbForth waits for input using "KEY" - which of course is just a char from the IR. You can make a special word that waits for anything you like... Cheers, Ralph (23 years ago, 30-Jun-02, to lugnet.robotics.rcx.pbforth)
|
| |
| | RE: kits on sale - Toronto area
|
|
Laura, I picked up two rotation sensors and the Vision COmmand as well as a few other kits - just in case. I really wish you would keep this kind of bargain hunting to yourself :-) Cheers, Ralph (23 years ago, 30-Jun-02, to lugnet.robotics)
|
| |
| | RE: CPR for RCX?
|
|
(...) You're pretty much OK until point 4. TCL is used to compile the pseudo code for pbFOrth into assembler source code. From there the GNU as program assembled the object code and ld links it and eventually produces the S records. S records are (...) (23 years ago, 30-Jun-02, to lugnet.robotics.rcx.pbforth)
|
| |
| | RE: Linux driver for USB tower
|
|
(...) Richard, this is great! What device name does the new tower driver use. I hope to be able to use my Tcl/Tk GUI for this purpose. It would be really great to get USB support for pbForth into the Linux world. The serial port has always been (...) (23 years ago, 30-Jun-02, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx.pbforth)
|
| |
| | FW: pbForth vs RCX 1.0
|
|
-----Original Message----- From: rhempel@bmts.com [mailto:rhempel@bmts.com] Sent: Thursday, June 27, 2002 4:21 AM To: Mario Ferrari; lugnet.robotics.rcx....lugnet.com Cc: rhempel@bmts.com Subject: Re: pbForth vs RCX 1.0 Can RCX 2.0 communicate with (...) (23 years ago, 30-Jun-02, to lugnet.robotics.rcx.pbforth)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
(...) 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)
|
| |
| | optical mouse chips as vision sensors?
|
|
(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)
|
| |
| | Re: How do I switch other devices with my RCX.
|
|
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)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
(...) <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)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
(...) Out of a mouse? Simon, expert at stating the obvious. (23 years ago, 29-Jun-02, to lugnet.robotics)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
(...) 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)
|
| |
| | Re: Light Sensor Problem
|
|
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)
|
| |
| | Re: Control a microScout
|
|
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)
|
| |
| | Re: Dead reckoning (was Re: Rover Programming)
|
|
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)
|
| |
| | Linux driver for USB tower
|
|
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)
|
| |
| | Re: Dead reckoning (was Re: Rover Programming)
|
|
(...) 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)
|
| |
| | Re: Dead reckoning (was Re: Rover Programming)
|
|
(...) 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)
|
| |
| | Re: Dead reckoning (was Re: Rover Programming)
|
|
(...) 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)
|
| |
| | Re: Rover Programming
|
|
(...) 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)
|
| |
| | Re: Control a microScout
|
|
(...) 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)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
(...) 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)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
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)
|
| |
| | Re: Rover Programming
|
|
(...) 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)
|
| |
| | Re: Rover Programming
|
|
<snip> (...) </snip> I hear dogs do a lot of that also... ;) -Rob (23 years ago, 27-Jun-02, to lugnet.robotics)
|
| |
| | Re: Rover Programming
|
|
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)
|
| |
| | Control a microScout
|
|
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)
|
| |
| | Re: Dead reckoning (was Re: Rover Programming)
|
|
(...) 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)
|
| |
| | Re: control multiple mindstorms robots using 1 IR tower!
|
|
(...) 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)
|
| |
| | Re: pbForth vs RCX 1.0
|
|
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)
|
| |
| | kits on sale - Toronto area
|
|
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)
|
| |
| | Re: Rover Programming
|
|
(...) 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)
|
| |
| | Re: Rover Programming
|
|
(...) 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)
|
| |
| | Dead reckoning (was Re: Rover Programming)
|
|
(...) 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)
|
| |
| | Re: pbForth vs RCX 1.0
|
|
"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)
|
| |
| | Light Sensor Problem
|
|
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)
|
| |
| | Re: Rover Programming
|
|
(...) 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)
|
| |
| | Re: Rover Programming
|
|
(...) 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)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
(...) 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)
|
| |
| | Any news on USB support for linux?
|
|
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)
|
| |
| | pbForth vs RCX 1.0
|
|
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)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
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)
|
| |
| | usb under windows
|
|
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)
|
| |
| | liblnp for windows
|
|
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)
|
| |
| | Re: Friction on Rotation Sensor
|
|
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)
|
| |
| | pbForth questions
|
|
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)
|
| |
| | Re: OT word definition... (was Re: Rover Programming)
|
|
(...) "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)
|
| |
| | OT word definition... (was Re: Rover Programming)
|
|
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)
|
| |
| | RE: Rover Programming
|
|
(...) 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)
|
| |
| | RE: Rover Programming
|
|
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)
|
| |
| | Re: Friction on Rotation Sensor
|
|
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)
|
| |
| | Re: Error opening //./legotower1
|
|
/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)
|
| |
| | Re: Rover Programming
|
|
(...) 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)
|
| |
| | Re: Friction on Rotation Sensor
|
|
(...) I'd describe the problem to LEGO customer service, they'll probably replace it. Jürgen (23 years ago, 26-Jun-02, to lugnet.robotics)
|
| |
| | Re: Friction on Rotation Sensor
|
|
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)
|
| |
| | Re: Rover Programming
|
|
(...) 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)
|
| |
| | Re: Friction on Rotation Sensor
|
|
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)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
(...) 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)
|
| |
| | Re: control multiple mindstorms robots using 1 IR tower!
|
|
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)
|
| |
| | Re: Error opening //./legotower1
|
|
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)
|
| |
| | Friction on Rotation Sensor
|
|
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)
|
| |
| | Re: All Terrain Crane
|
|
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)
|
| |
| | Re: All Terrain Crane
|
|
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)
|
| |
| | Re: All Terrain Crane
|
|
"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)
|
| |
| | Re: All Terrain Crane
|
|
"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)
|
| |
| | Re: Navigation using landmarks
|
|
(...) 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)
|
| |
| | Re: Lego Team Challenge or RIS?
|
|
(...) 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)
|
| |
| | Re: All Terrain Crane
|
|
(...) 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)
|
| |
| | Re: Lego Team Challenge or RIS?
|
|
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)
|
| |
| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
|
|
(...) 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)
|
| |
| | Re: Lego Team Challenge or RIS?
|
|
(...) 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)
|
