 | | RE: Double echo
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|
(...) This is a good idea Sergey. Obvoiusly you have got a set of tools up to build the pbForth from the distribution. Does the makefile work OK for you? I might suggest that I add a word that turns the echos off or on? How does ECHO_OFF ( -- ) (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx.pbforth)
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| | 64K UPGRADE
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|
When upgrading to 64K, could that be done when still using Interactive C? By the way, what's the main difference between 2.8 and 3.X versions? Advantanges and Disavantages!!! Thanks, Paul (26 years ago, 26-Oct-99, to lugnet.robotics.handyboard)
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| |
| | line-followers
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|
Hi all, I would greatly appreciate information on line-followers and oscillating DC wire-followers to use with the Handy Board. Which models are the most practical? Where can I find the specs and instructions for these models? What is the code for (...) (26 years ago, 26-Oct-99, to lugnet.robotics.handyboard)
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| |
| | RE: Pneumatics and the RCX -how?
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|
(...) if the number of mini-cylinders could be reduced by 10 by only using 1 on each leg (use 1/2 beams for bracing outside the cylinder) and maybe using single cylinders and links for moving the legs? The basic design has a wonderful symmetry that (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| | RIS 1.0 vs RIS 1.5
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|
I went to a local CompUSA looking for a add-on for Sid Meir's Alpha Centauri and was wandering around. Lo and Behold, I find a children's section of software with all the Mindstorm Kits! Including the new RIS 1.5. I just got my RIS 1.0 for my (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: Windows 2000 (fwd)
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|
From: "Jim Choate" <ravage@einstein.ssz.com> (...) regular (...) This shouldn't affect mindstorms however, since it doesn't use any special devices (it just talks via the serial port). I haven't used the Mindstorms software in ages, so I can't (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: Windows 2000 (fwd)
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|
----- Forwarded message from alex wetmore ----- From: "alex wetmore" <alex@phred.org> Subject: Re: Windows 2000 (fwd) Date: Tue, 26 Oct 1999 08:21:15 -0700 From: "Jim Choate" <ravage@einstein.ssz.com> (...) RC3 is the release candidate for the (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: Pneumatics and the RCX -how?
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|
(...) Very nice construction!!! Could you post some pictures of your hand-held controller too? (Whatever is on the off-screen end of the tether seen in the video clip.) Is that just a battery box, or is there more to it? (...) I had some thoughts (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: RIS 1.0 vs RIS 1.5
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|
nooooo! The 1.5 doesn't have a power connector. buy another 1.0 if you can. KL (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: MOTOR DRIVERS
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|
I also remember seeing people piggybacking the L293s to double the current capability. Thoughts? -chris ----- Original Message ----- From: Fred G. Martin <fredm@media.mit.edu> To: <handyboard@media.mit.edu> Sent: Monday, October 25, 1999 2:26 PM (...) (26 years ago, 26-Oct-99, to lugnet.robotics.handyboard)
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| |
| | A few questions on NQC vs. VB
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|
Hi all. I've been lurking in the shadows reading posts for a couple of weeks and now have a question of my own. I'd like to move beyond the programming capabilities of the RIS software and am trying to decide which way to go. I have VERY little (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx)
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| |
| | Re: LegOS 0.2.0a multi-threading problem
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|
(...) [snip] Heh. I've spent 2 days on this, so I know how you feel :). main() must be the first function in your source file, otherwise really weird stuff happens. -- Regards, Modemch (26 years ago, 25-Oct-99, to lugnet.robotics.rcx.legos)
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| | RCX with AC power - Still Available
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|
Hi. Yes I mostly lurk, but what a great listserv this is!! I recently acquired a Robolab for my 8th grade science classes - WAY COOL. Also, I recently went to a Lego sponsored training workshop, where the Lego Rep. tells me that you can still get (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: A few questions on NQC vs. VB
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Zac, I may not understand your objectives, but I'd say that using NQC with the Rcx Command Center RcxCC is the current best choice for work that is primarily concerned with programming the Rcx and Robots. You'll find it very easy to use, and there's (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx)
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| |
| | RE: A few questions on NQC vs. VB
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|
(...) After seeing all the cool stuff at Mindfest this weekend, I'll say this: 1. Learn about basic bot building using the graphical tools from LEGO 2. When you need more control, go to NQC 3. When you run out of variables or timers, etc go to (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth)
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| | Re: A few questions on NQC vs. VB
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|
(...) I'd recommend NQC; if you use visual basic, you'll need to go through a lot of communicating-with-the-brick and user-interface crap every time you want to make a program. With NQC, you concentrate on writing your code for the robot, and don't (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx)
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| |
| | Re: A few questions on NQC vs. VB
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|
Hi Zac, Dave Baum's NQC is excellent ... not quite the capabilities of pbForth, but *much* easier to learn. Mark Overmars' RCX-CC makes NQC even easier to use ... and best of all, both Dave and Mark have made their efforts available for use free of (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx)
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| |
| | RCX Mower (was RCX with AC power - Still Available)
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|
You wouldn't necessarily have to map the lawn. Just let it go around randomly. A purely random algorithm would have a tendency to miss corners, though. You could do something random, but add a bias of some kind to help it get the corners of your (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: RCX with AC power - Still Available
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|
James C. Jones <lego-robotics@crynwr.com> wrote in message news:v01540b02b43b87...121.26]... (...) Yea, but they want something like $150 compared to $200 for a RCX and a whole lot of parts with the RIS. (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Kevin Loch's pictures from Mindfest.
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|
I just wanted to make sure that those of you that don't follow the lugnet.org group saw that Kevin Loch has posted his pictures from Mindfest on his site. There are some great pictures here even though they are a little small. (URL) is Kevin's (...) (26 years ago, 26-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics)
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| |
| | RE: Pneumatics and the RCX -how?
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|
There are other models of pneumatic LEGO hexapods on the web already that use linkage for the foward/reverse motion as well as a single large cylinder for each legs vertical motion. (2 URLs) a couple nice examples which inspired me to build this (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: Kevin Loch's pictures from Mindfest.
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|
(...) I won't take that personally :) I think we've been spoiled by Matt's 1600x1280 digital camera. KL (26 years ago, 26-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics)
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| |
| | RE: Kevin Loch's pictures from Mindfest.
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|
Some of the Star Wars scenes make great desktop backgrounds too! Rich Thompson (URL) Message----- From: news-gateway@lugnet.com [mailto:news-gateway...net.com]On Behalf Of Kevin Loch Sent: Tuesday, October 26, 1999 2:07 PM To: (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Book example code
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|
The example code from _The Unofficial Guide to LEGO MINDSTORMS Robots_ is available online: (URL) includes RCX Code files, NQC source files, pbFORTH source files, legOS C source files (0.1.7, not 0.2.0a), and even a MS Word document with VBA macros (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | What's new in RIS 1.5 software?
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|
I have heard that the development software that comes with RIS 1.5 has been updated and improved but I haven't seen specifics. Can anyone share what they know about what is new? The things I would like to know are: 1. Is the software faster? (click, (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: A few questions on NQC vs. VB
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|
(...) Hi, I don't see this as a matter of choice. It really depends on what you want to do with your robots. NQC programs are executed directly on the RCX and needs no communication with the PC, whereas programs written in VB using SPIRIT.OCX are (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx)
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| |
| | Interests in non-GNU C compiler for RIS?
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|
I know most lego alternative SW seems to be Open Source, but please don't flame me for asking this question - ImageCraft is a company that provides low cost C compilers for 8/16 bit microcontrollers such as Atmel AVR, Moto HC11/12/16. While not Free (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx)
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| |
| | Re: Pneumatics and the RCX -how?
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|
(...) Thanks! The only things off screen are the battery box and compressor. If you look at the picture of the underside you can see the two switches and cylinders that control the stepping motion. (URL) is the LEGO compressor I use with it most of (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | RE: RIS1.5 scan
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|
Hi Rick..and everybody else :) A few people mailed me regarding the scans - well I got around doing them all - yep the new Constructopedia is over 100 pages big - so take a look here - but be quick I'll have to take them down by Sunday or Monday (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: Double echo
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|
Hi Ralph, (...) Yes, it works. After fighting for a while with Cygwin32 + binutils (it's still present a bug in linker configuration), finally I got the development environment. Your makefile works fine so it was very easy to get pbFORTH compiled. (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx.pbforth)
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| |
| | RE: Book example code
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|
I was looking for those files last night! Great book Jonathan... Rich Thompson (URL) Message----- From: news-gateway@lugnet.com [mailto:news-gateway...net.com]On Behalf Of Jonathan Knudsen Sent: Tuesday, October 26, 1999 2:34 PM To: (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | RE: RIS1.5 scan
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|
If the last link shouldn't work - try this: (URL) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: A few questions on NQC vs. VB
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|
(...) Hi, Don't miss the opportunity to learn Forth! It's unique environment, it's just another world. :) Here is a history of Forth: (URL) Sergey Udovenko (26 years ago, 26-Oct-99, to lugnet.robotics.rcx)
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| |
| | controlling RCX from PC?!
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|
all, i have a little program that controls the RCX from the PC. i know other people here have done that, so... my major problem is that signal round trip time is very high - it takes about 200 - 250 ms to send ONE command to the RCX (waiting for the (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: RCX with AC power - Still Available
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|
In a message dated 10/26/1999 2:54:52 PM Eastern Daylight Time, gasperi@alynk.com writes: << Yea, but they want something like $150 compared to $200 for a RCX and a whole lot of parts with the RIS. >> Wrong.....$120 and that is the same price as (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: IR remote using PIC16F84
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|
Hi Juha, There's information on cracking the Cybermaster protocol on my website including links to others who done the same for the Mindstom. CU Bert Lego robots and artificial intelligence (URL) bericht----- Van: Niinikoski Juha (...) (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: LegOS 0.2.0a multi-threading problem
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|
Hi, yes, currently, you'll have to make main() your first function. version 0.2.1 will support arbitrary starting offsets. could you report about the stability of repeated program runs? if this works fine, I'll change the ON/OFF behaviour to (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx.legos)
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| |
| | Re: Interests in non-GNU C compiler for RIS?
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|
(...) native H8 machine code, and that doesn't require a huge investment in time and disk space to install and configure. As I see it, there are already many development systems out there for free that are this simple to install and use, as long as (...) (26 years ago, 26-Oct-99, to lugnet.robotics.rcx)
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| |
| | Re: IntelliMouse Ripe for Hacking
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|
Probably the first step would be to monitor the data sent from the mouse to the computer. I mean, if it is decoded by the driver or some other file, and it cannot be understood, then this project would instantly turn a lot harder. (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: controlling RCX from PC?!
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|
(...) This isn't a fix for the slow speed you're noticing, but: what about programming the RCX to take care of the low-level moving around -- the basic motion and testing of sensors -- and then just sending higher-level commands from your program. (26 years ago, 26-Oct-99, to lugnet.robotics)
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| |
| | Re: Kevin Loch's pictures from Mindfest.
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|
The Sunday caps are up! KL (...) (26 years ago, 27-Oct-99, to lugnet.general, lugnet.starwars, lugnet.robotics)
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| |
| | Mechanical Motion Models
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|
I came across the following link (URL) I thought may be useful to Technic and Mindstorms builders who are trying to incorporate various motion mechanisms into their models. A wide range of mechanisms are included including the less common ones such (...) (26 years ago, 27-Oct-99, to lugnet.robotics, lugnet.build, lugnet.technic)
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| |
| | RE: Double echo
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|
Sergey wrote: <Discussion of ECHO_ON ECHO_OFF snipped> (...) Personally, this is a BIG advantage. Users who do not have access to Tcl now have to deal with double respose characters. A simple ECHO_OFF at the beginning of their script and they now (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.pbforth)
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| |
| | Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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|
I will be teaching several 5th to 8th grade students how to build Lego-based Robots and how to program them in RcxCODE and NQC. We're located in Rural Vermont (!tm) in the NorthEast U.S. I was privileged to get to MindFest on Sunday at MIT, and (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc)
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| |
| | Re: Mechanical Motion Models
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|
(...) Interesting site. Too bad the imagery isn't a little larger. <ICS> (26 years ago, 27-Oct-99, to lugnet.robotics)
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| |
| | RE: RIS1.5 scan
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|
(...) Ummmm, Jesper. I think it's OK to post scans of a few pages like you did last week. The art direction for the new Constructopedia is great and your scans helped show that. Posting the whole Constructopedia is probably in contravention of (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| |
| | RE: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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|
Terry wrote (...) I'd like to participate in this too. I'm an engineer that has two kids in grade 2 and another starting K in two years. So I want to get things moving in the right direction up here too! Todd, how about it? A group for educators (or (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc)
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| |
| | Re: Sharp GP2D02 with out expansion board
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|
Gary, Cool! Could you tell me how you wired it up? I'm a real beginner here and don't know exactly what you mean on that web page by: "This example assumes that port PA5 on the Handy Board was connected to the input of the GP2D02 detector and that (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| |
| | Re: Interests in non-GNU C compiler for RIS?
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|
(...) Ahah! Now *that* is interesting to me. Obviously (as the legOS HOWTO maintainer), a gcc replacement doesn't really interest me, unless you have a reliable solaris->h8300 cross-compiler, in which case maybe we can talk :) However, I think I (as (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx)
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| |
| | Re: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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|
(...) have in (...) not the (...) I agree - a discussion group for teaching would be a very good thing. One of the highlights of my NQC workshops was when one kid excitedly ran up to me anxious to show me how he changed the program in the "exercise" (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc)
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| |
| | motor current trick
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|
I've got a great R/C track vehicle that I want to use as a robot chassis, problem is the 1 Amp motors. I was going to use Kam's suggestion, but then I saw the Sonar schematics. I noticed that the sonar schematics have power coming from the motor (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| |
| | Re: fast firmware downloader
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|
(...) If there's interest in a stand-alone firmware downloader running on the Mac, please let me know. I can certainly add the approriate quad-speed stuff into NQC, and can also make a stand-alone version if Mac users are using pbFORTH or something (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
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| |
| | RE: fast firmware downloader
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|
(...) Count me in. I'm ditching the Tcl interface - it's just too damn goofy! A standard firmware downloader would be great - especially if it ran on all platforms. As far As I know, Dave Baum is the only guy here who has got a downloader for the (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth)
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| |
| | Re: motor current trick
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|
A couple of easy things that you can do to increase the current capabilities of the motor drivers are: (1) replace the L293Ds with SN754410 chips (available from Acroname), and (2) piggyback one H-bridge chip on top of the other to handle almost (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| |
| | RCX 1.0 availablilty
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|
This is a message I posted on RTL: Here is what I have observed so far: The RCX's in the plain 1.0 boxes all have power jacks. The RCX's in the 1.0 boxes with 1.5 upgrade stickers also have the jacks The RCX's in the 1.5 boxes do not have power (...) (26 years ago, 27-Oct-99, to lugnet.market.shopping, lugnet.robotics.rcx)
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| |
| | Re: Expansion Board and Smooth PWM
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|
Bill, after unzipping the files, copy all the downloaded drivers into your interactive C Libs directory. These drivers must reside in this directory (drive:\IC\Libs) in order for IC to load them at startup. You will be asked if you want to replace (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| |
| | Re: Interests in non-GNU C compiler for RIS?
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|
Well, what I think (hope!) Richard means is... well... to start from scratch: The subsumption architecture is a way of thinking about programming robots. The idea is that you program lots of very small, simple modules that take simple inputs and (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx)
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| |
| | I've donated my body to sensors
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|
I was really inspired by the Mindfest panelists Karen Wilkinsen and Mike Petrich who talked about using Galvanic Skin Response sensors. This is the measurement of skin resistance and how it changes with emotional state. I've started to experiment (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| |
| | Re: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
|
|
(...) I was moved and motivated too -- and had a great time overall. (And I didn't even get to see half of everything!) (...) Hmm, so there was no panel "by educators, for educators" to discuss meta-topics? How about workshops? I missed the (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc, lugnet.admin.general)
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| |
| | Debugging
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|
I am developing a course at SJSU using the handyboard as the microcontroller for a competition being held at the end of the semester. This new course have us build the handyboard from scratch and go through the debugging process. I have help some (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| |
| | Re: Double echo
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|
(...) I also think that standardisation is not a primary goal in our case ;) I still can't see a real necessity to have it as switchable feature, but having these ECHO_ON / ECHO_OFF available it's better then nothing. Would be nice to have them in a (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.pbforth)
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| |
| | Re: Servo 16 pgm +SPI on HC11
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|
I have to admit that I have not actually finished the project, work commitments meant that it was shelved for a while. The easiest way to communicate to the HC11 is to use the software from the HB website that allows you to use one of the pins on (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| |
| | What should be in the next version of RcxCC
|
|
Dear RcxCC users, I am running out of ideas of what to add to Rcx Command Center. So I like to ask you what you like to see next. Please be as specific as you can. In particular, I have heard a number of people making remarks about tools for (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc)
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| |
| | Re: controlling RCX from PC?!
|
|
nik heger wrote in message ... (...) Remember the NASA Pathfinder? Signal round-trip was about 30 minutes! Still, they did some interesting research. Try to put more decision-making capabilities in the RCX itself and let the PC handle its behaviour (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| |
| | Re: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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|
Todd, Dave, Ralph, OK!! This can work. I like the simple .edu (I was just grumbling, avoiding the Educator noun...) We're all learners and teachers. I'm out the door to work on Mindstorms with my Grandchildren! Be back this PM.... Todd, who can (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc, lugnet.admin.general)
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| |
| | Re: controlling RCX from PC?!
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|
(...) I agree with your conclusion (separating 'driving' from 'navigating'), but there is a slight difference between the RCX and Pathfinder: the latter had videocameras, allowing it to see much further and also understand better the environment. (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| |
| | Re: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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|
(...) This is a brilliant insight. I am not a "teacher" by trade (I also have the title "Engineer" tattooed across my cranium) but I have had many opportunities to teach small classes on various topics. It took me awhile to discover that trying to (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc, lugnet.admin.general)
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| |
| | GP2D05
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|
Hi Anybody got the GP2DO5 IR module working with the Handyboard (without expansion board) using IC ? I always seem to get a Logic "1" from the detector even if there are no obstacles in front of the detector. Any hints will be greatly appreciated. (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| |
| | Re: What should be in the next version of RcxCC
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|
(...) I'd like to see a linux version. (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc)
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| |
| | Re: RCX 1.0 availablilty
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|
(...) Sounds like I may need to make a run on RCX units if I want some for use with train layouts etc where I want them running on wall power rather than battery power. Any idea why TLG has removed the power jack? (26 years ago, 27-Oct-99, to lugnet.robotics.rcx)
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| |
| | Re: Mindstorms available in the Netherlands ?
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|
Mark Overmars wrote in message ... (...) LEGO Benelux always states a much higher price in advance. Actual shop price will probably same as in Germany. Eric (26 years ago, 27-Oct-99, to lugnet.robotics)
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| |
| | Chaining multiple RCX's output to input
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|
While attending Michael Gasperi's workshop at Mindfest it occured to me that, from his investigations, it should be functional and harmless to connect the output of an RCX to the input of another RCX. Last night I connected my RCX to my Scout and it (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| |
| | Re: Scout brick and IR
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(...) Which ones? Eric (26 years ago, 27-Oct-99, to lugnet.robotics)
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| |
| | Re: RCX 1.0 availablilty
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|
(...) Cost. Plain and simple. (26 years ago, 27-Oct-99, to lugnet.robotics.rcx)
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| |
| | Re: Chaining multiple RCX's output to input
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|
Eric Brok <brok@fcjsvc.hvu.nl> wrote in message news:FK9Lxs.49z@lugnet.com... (...) more (...) Using a motor as a tachometer has come up before and I used to be worried about this causing damage. I have it from the LEGO engineers I met at mindfest (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| |
| | Thanks to All!
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|
I really appreciate all of the great feedback. I've figured out which way I'm going so I'll probably have more specific programming questions in the near future. Luckily for me, I've found an excellent forum for intellectual exchange. Thanks again, (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx)
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| | Re: LegOS 0.2.0a multi-threading problem
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(...) That would be nice, actually. I have only one problem with stability - every once in a while, the "Run" key stops working, and all the other keys as well (don't remember exactly, but I think that's how it is). The program keeps running (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.legos)
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| | IR questinos and more
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Hi All. I'm trying to build an IR proximity sensor with LegOS, by using the on-board transmitter and light sensor. I'm having problems figuring out how to send data, however. I tried using lnp_logical_write(), but 'cu -l /dev/ttyS0' doesn't show any (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.legos)
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| | Re: LegOS 0.2.0a multi-threading problem
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(...) Following up to myself, but here's the error (kernel/program/.c) lines 255-260: case KEY_ONOFF: // works only if no programs are running. if(nb_tasks<=3) { killall(PRIO_HIGHEST); } return 0; ^^^^ This should be 'break'. The way the code is (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.legos)
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| | Sonar Sensor
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I'm designing a robot detection/obstacle avoidance system. And I want to install some Sonar sensor. I'm wondering if anyone would know of any good sonar sensor that can easily be used with the HB and that give good results? Any info on this would be (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Interests in non-GNU C compiler for RIS?
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Hello Luis, thanks for respomding (and thanks to others who have email me privately...) (...) We got into the business selling REXIS (REal eXecutive for Intelligent Systems) but stop after a couple years since the support cost is too high :-( I may (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx)
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| | Re: LegOS 0.2.0a multi-threading problem
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(...) If ON/OFF is desired while programs run, just drop the if. If ON/OFF isn't to work while programs run, it has to be this: if(nb_tasks<=3) { killall(PRIO_HIGHEST); return 0; // killall doesn't kill self } break; What does standard firmware do? (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.legos)
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| | ROBOLAB 2.0 availability
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I just want to apologize to the people who saw ROBOLAB 2.0 on my laptop at Mindfest and then immediately called PITSCO and tried to order it. I tried to tell everyone I spoke to at Mindfest that it wouldn't be available "for a couple of months"... (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Mindfest Panel: Robotics in the Classroom
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My talk (slides and text... no video yet) for the Robotics in the Classroom panel at Minfest this past weekend is at (URL) anyone is interested. -Ben (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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I got this awesome idea: Have you heard of Laserdome? You run around in a dark room and shoot at othe rpeople with lasers. When you get hit, a computer registers it and blah blah. How about building two robots, equip them with a light sensor and a (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) of a (...) Well, some of the cheaper laser pointers do this automatic. The produce a big spot of light when held not too far away from a wall. --Tobias (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | legOS limitation
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Hey, this is a small but frustrating one. This is in legOS 1.7 but I beleive it will still be in 2.0 as it's caused by the 1 priority to a task requirement. If you write code like the following: while(1){ wait(for something); kill(t1); t1 = (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.legos)
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| | Re: Sonar Sensor
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Try the Polaroid sonar sensors available from (URL) HB site has the info on how to hook it up to the Handy Board including the IC drivers. The Polaroid sonar works very well! Good luck, kam (...) ===...=== Kam Leang University of Utah Department of (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Chaining multiple RCX's output to input
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(...) SNIP (...) One could use four diodes (as a bridge rectifier) between the motor and the input port, and achieve tachometer functionality in both directions, though without direction sense, methinks... Regards, Issac. [Dexter] (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: LegOS 0.2.0a multi-threading problem
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(...) I'd say this is the way to leave it, since it seems to be how you meant it in the first place. It's just very annoying to take out the batteries if ON/OFF is pressed by mistake while something is running. (...) Don't know, I've never used (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.legos)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) It would be. But it's really tough -- not only can they not see where the light sensor is, they totally have no idea where the other robot is. It's like they're blindfolded and deaf. (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: Sonar Sensor
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(...) Yep, I've checked out about every page I've seen on this. I just haven't had the time to do it yet. :| As soon as our competition is over and classes settle down (maybe in 3 years :()) I will get a chance to experiment with it. When will you (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Sonar Sensor
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Danny, The Polaroid 6500 is very common, and if you have the expansion board on your HB you have a built in connection. There are drivers on the MIT HandyBoard site. The units are available from Acroname and they also have a good fact sheet. (2 (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) Hmm, I don't think that's quite true. You can equip the robots with rotation sensors, and have them programmed such that they will send the values of their respective rotation sensors every so often. They can either send them to one another (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: IntelliMouse Ripe for Hacking
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Through the PS/2 adapter it doesn't require any special driver. The native USB plug requires a driver in Windows 98. Cheers, Jim Andy Gombos <lego-robotics@crynwr.com> wrote in message news:3816307E.540F5E...nfi.net... (...) to the (...) it cannot (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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You can also take the "lens" out of the front of a good laser pointer and it does the same thing. KL (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | stalled motor detection
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Hi all, I'm working on a dead reckoning 'bot. I'm not really interested in what the wheels are doing unless they're stalled. Anyone know any good tricks for monitoring the motor current, or should I go with shaft encoders anyway? Thanks! Paul (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) Why spend money on a laser, that should have a focused beam, when all you're going to do basically, is turn it into a flashlight? (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: controlling RCX from PC?!
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(...) thanks matthew and arjen! that's exactly what i am going to do. what i did not realize at first is that 2400 baud actually *is* way too slow, as 2400 bits/s is only 240 bytes per second. a message has a length of around 10 bytes (depending on (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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(...) I think major areas of education will [have to] end up going through the same push->pull revolution that traditional media have begun to go through in recent years. Pushing television shows, commercials, movies -- and especially news -- in (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc, lugnet.admin.general)
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