 | | Compass or Gyro
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I am building a six legged robot to emulate an ant, and I need a good way to tell what direction it is facing. I am using a Handy Board with an extension board, and I don't want to spend too much. I have looked at compasses and gyros, but I am not (...) (23 years ago, 15-Jun-02, to lugnet.robotics)
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| | MinuteTimer and currentTimeMillis()
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I am writing a class which can be set with the actual time and then provide the value to other classes. It only has to be accurate to the minute. I've done this in NQC, but am trying to figure out how to do it using Lejos. If currentTimeMillis() is (...) (23 years ago, 15-Jun-02, to lugnet.robotics.rcx.java)
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| | Re: Lasers, et al...
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You'll find what you look for here : (URL) Also, has anyone built a homebrew sensor that uses a slotted wheel (...) (23 years ago, 15-Jun-02, to lugnet.robotics)
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| | Re: RCX Code Documentation and FLL Coaches Training
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Dean, I'd be glad to volunteer to be a teacher reviewer for your documentation. I teach Robotics in the Classroom a class for teachers at WSU. The Help menu within RCX 2.0 explains each code block and gives an example of its use. I found this (...) (23 years ago, 15-Jun-02, to lugnet.robotics.rcx.robolab)
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| | Re: I^2C bus with LEGO Mindstorms
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(...) You can get one or two signals per second. I tested it with the knight rider test tool from the same Elektuur project and with the 4 digit led display. This is a very old project from Elektuur ... the serial number is 920004-11 ... I think ist (...) (23 years ago, 15-Jun-02, to lugnet.robotics.rcx)
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| | Re: I^2C bus with LEGO Mindstorms
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Hi Jan, I tested it and it's veeeeery slooo...oooww. Elektuur writes that the interface could be an extention of the RCX for more sensors you may use for your roboter. The software is written for NQC and uses some sensor functions to realize the i2c (...) (23 years ago, 15-Jun-02, to lugnet.robotics.rcx)
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| | Re: LEGO cuts the price of the RCX Brick
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"Todd Lehman" <todd@lugnet.com> schreef in bericht news:GxptxE.CA5@lugnet.com... (...) overcompensate -- (...) If the LEGO US 110v adapter is similair to the Europe 220v adapter in terms of output : it outputs around 9.2-11.4v AC (note the AC, DC (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx)
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| | I^2C bus with LEGO Mindstorms
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The dutch electronics magazine Elektuur posted an article 2 months ago about making an I^2C interface for the RCX. You can download PCB layout and software at (URL) partslist is at (URL) gonna try to lend a copy from the library and scan it... this (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) I looked into several patterns. What would be ideal would be something which you could drive across along any straightline path and get back your direction and position from the pattern of dark and light. It seems rather unlikely that such a (...) (23 years ago, 14-Jun-02, to lugnet.robotics)
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| | Re: LEGO cuts the price of the RCX Brick
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(...) Um, are you asking about the power adapter that you might take off the 9V train regulator, for example? My expectation is that this item being discounted is the brick only, and the brick takes in power at its input plug but does not come with (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx)
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| | Re: LEGO cuts the price of the RCX Brick
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(...) Hallelujah! (...) A couple questions for someone with a multimeter: Does the 1.0 power adapter output a clean 9v DC? Or does it overcompensate -- at, say, 9.3v -- like other cheap wall adapters? Does the voltage drop by more than 1% while (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx)
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| | Can the handyboard IR communicate with the RCX?
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Hi, can the handyboard IR communicate with the RCX? Or have somebody a schematic for a RCX compatible IR transeiver?? Thanks for help Bert Weber (23 years ago, 14-Jun-02, to lugnet.robotics)
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| | Re: LEGO cuts the price of the RCX Brick
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(...) The RCX Bricks on sale are the 1.0 version. I think that they are just geting rid of them to make space in their warehouses for other lego sets. The only diffference is 1.0 have a plug so you can use an adapter and use your outlets instead of (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx)
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| | Re: Cheap RCX bricks at S@H
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The RIS 1.5 for $99.00 sold out on Tuesday this week. I actually saw a "Sold Out" image of them on the Web Specials section...now they aren't even listed. Jona ----- Original Message ----- From: "Wayne Watson" <mtnviews@earthlink.net> To: (...) (23 years ago, 14-Jun-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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Hi, Steve I thought about most of your solutions (sphere, bycicle and 3 mirrors). Unfortunatelly I came to the same conclusions. The funny part is that my alternative nav system was very similar to yours. But it was based on a line, not a ? shape. (...) (23 years ago, 14-Jun-02, to lugnet.robotics)
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| | Re: Cheap RCX bricks at S@H
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I found the RCX under web specials, but didn't see the RIS 1.5 (...) ... snip (...) -- Wayne T. Watson (121.015 Deg. W, 39.262 Deg. N, 2,701 feet), Nevada City, CA Web Page: <home.earthlink.net/~mtnviews> Imaginarium Museum: (...) (23 years ago, 14-Jun-02, to lugnet.robotics)
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| | Re: RCX Code Documentation and FLL Coaches Training
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Hi Dean, (...) With your code on screen, press <print screen> key - this will put screen contents in clipboard. Press <Alt><Esc> to iconize Lego Software Start Paint (or a better image software) and paste clipboard in a new document. Now the real (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx.robolab)
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| | RCX Code Documentation and FLL Coaches Training
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First off I want to thank everyone for their help and guidance on my FLL Coaches Training class. The Mechanics class documentation is mostly done now. I'm having a few of my engineer friends review it for techical errors. A teacher review follows (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx.robolab)
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| | Re: LEGO cuts the price of the RCX Brick
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"Tonya Witherspoon" <tonya.witherspoon@wichita.edu> schreef in bericht news:GxoCuM.8DB@lugnet.com... (...) $59.99. (...) (URL) (...) out (...) It's only for north-America... in Europe prices are still the same :( -- Jan-Albert "Anvil" van Ree | (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx)
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| | Re: Scheduler patch
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Well, actually not :) If users don't want proportional timeslicing the patch is completly useless, but if they do, it might be usefull. /Joel (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Scheduler patch
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(...) Do you have some examples where your patch could be useful? Eric (23 years ago, 14-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Scheduler patch
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Joe I'm happy you found my patch quite interesting! I, just as you, think the kernel could be simplified quite alot. Actually my goal was initially to reduce size and overhead but I when I decided to add proportional timeslicing the goal changed. (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Scheduler patch
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Joel, I have found your work to be quite interesting! I made quite a few modifications in the kernel starting with ver 0.2.5 and had hoped to have some of the modifications included in ver 0.2.7 My goal was to reduce size and overhead which is quite (...) (23 years ago, 14-Jun-02, to lugnet.robotics.rcx.legos)
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| | LEGO cuts the price of the RCX Brick
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On the Lego website the price for an RCX has been cut from $119.00 to $59.99. (URL) the great price - what's up with the RCX? Is LEGO about to roll out a new RCX? Has anyone heard anything? Tonya Witherspoon (23 years ago, 14-Jun-02, to lugnet.robotics.rcx)
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| | RE: Transmit Frequency
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Hi Jürgen :) (...) No, it's a part that you can rotate with a screwdriver. I'm used to see these on radios or walkie-talkies ou even on tv-tuners Maybe I'm wrong, and that part has nothing to do with the RF of the unit. I dunno if this changes the (...) (23 years ago, 13-Jun-02, to lugnet.robotics.cybermaster)
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| | Re: Transmit Frequency
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Hi Marco, (...) there are several frequencies in the 27MHz band. (...) Probably a quartz. (...) You should buy two quartz for the exact same frequency in the 27MHz band, then it should be ok. (...) No, I have only one unit. Jürgen (23 years ago, 13-Jun-02, to lugnet.robotics.cybermaster)
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| | RE: Transmit Frequency
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(...) Mine's also 27MHz. By the way, has anyone tried to alter this freq ? I had the opportunity to get my hands on a Cybermaster with a stuck motor. After opening it up, I saw the part (don't know the correct name of the component) where the (...) (23 years ago, 13-Jun-02, to lugnet.robotics.cybermaster)
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| | Scheduler patch
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Hello! I've been doing some changes to the legOS scheduler. Now execution-time of user tasks are proportional to priorities. See (URL) are made to legOS 0.2.6 and I didn't manage to get a working diff file, so just download the following files and (...) (23 years ago, 13-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: seting up legos 0.2.6
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"Ed Manlove" <emanlove@ieee.org> wrote: <snip> (...) When you install from the net, setup.exe actually still d/loads and saves files locally, in a subdirectory with a long funny name (containing the name of the host you d/load from) in your "package (...) (23 years ago, 12-Jun-02, to lugnet.robotics.rcx.legos)
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| | Lasers, et al...
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Thanks for all of your replies. I guess my main intent was to make sure I wasn't going to fry my light sensor by pointing a laser at it. I'm assuming laser pointer strength beams aren't powerful enough to harm the sensor. All of the links have been (...) (23 years ago, 12-Jun-02, to lugnet.robotics)
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| | Re: USB Tower support for linux
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(...) Lack of time. But everybody is welcome to work on it. (...) No problem, the bricks are identical for all practical purposes (actually that's what I do all the time). Jürgen (23 years ago, 12-Jun-02, to lugnet.robotics.rcx.legos)
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| | RE: Navigation using landmarks (Was: Re: lasers and RCX)
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Probably what you need is a corner cube reflector. Light 'in' is always reflected back along the same path. Basically take three square mirrors and place them at 90degrees to each other (reflective sides in), like three sides of a cube. (...) (23 years ago, 12-Jun-02, to lugnet.robotics)
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| | Re: Check this out
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(...) That's exactly what it did last time, got down to -3 or -4 days and was then reset to +5 days. I did watch the last few minutes of the countdown last time (was late afternoon here in Aus, IIRC), and kept checking back every day at my almost 7 (...) (23 years ago, 12-Jun-02, to lugnet.robotics)
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| | USB Tower support for linux
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Hi all, Does anybody know why legoUSB effort is inactive since 09 January of 2002.I have a RCX2.0 brick and I would like to try with the legos. I'm not interested in any MS Windows host development platform solution while I find linux alternatives (...) (23 years ago, 12-Jun-02, to lugnet.robotics.rcx.legos)
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| | custom using the USB-tower via Robolab
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Hi Robolab specialists, We've set up a simple multi-RCX communication system based on Robolab 2.5 and the RS232 tower. Now we try to operate the same through the new USB-tower, which has the advantage that it may always receive information from the (...) (23 years ago, 12-Jun-02, to lugnet.robotics)
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| | Navigation using landmarks (Was: Re: lasers and RCX)
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(...) I've played quite a bit with this kind of problem (although I put the reflector on the robot and the laser in the corner of the room - but that's another story). What's needed is a "RetroReflector" - which is to say, an object that always (...) (23 years ago, 11-Jun-02, to lugnet.robotics)
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| | Re: Check this out
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(...) Come and gone.. Back to -1 days and counting down from 23 hours again.. What an anti climax! Regards, Ed. (23 years ago, 12-Jun-02, to lugnet.robotics)
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| | Re: lasers and RCX
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Hi, Dan I remember that thread. But I don't remember anything concrete about that. I started a small project of mine at the time based on that. I have an sugestion for you. Focus on the problem, not the solution. What do you want to do exactly? (...) (23 years ago, 9-Jun-02, to lugnet.robotics)
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| | Re: Check this out
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No idea but I feel like watching it hit the end. (About 15 minutes left to go at this point) It appears to be heading for Midnight EDT. -- Baha Baydar bbaydar@hfx.eastlink.ca ----- Original Message ----- From: "Rob Hendrix" <rmhendrix@hotmail.com> (...) (23 years ago, 12-Jun-02, to lugnet.robotics)
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| | Re: Check this out
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(...) OK. The counter is less than 1 hour from countdown completion. I wonder whats going to happen? * Product release? * Online playable game? * New features on Lego.com featuring Spybotics? * Availability on LS@H? What's your prediction? -Rob (23 years ago, 12-Jun-02, to lugnet.robotics)
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| | RCX <--> Pocket PC Communication
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Has anyone tried to communicate with the RCX using a pocket pc? If you have, I would like to know how. (23 years ago, 11-Jun-02, to lugnet.robotics.rcx)
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| | Re: 8466
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I have two of these sets. They're absolutely great. The local Costco had them for $50 CDN just before Christmas. I wish I'd had more money at the time. There are at least one up for bid on eBay currently ( (URL) ) if you want one cheaper. The RCX (...) (23 years ago, 11-Jun-02, to lugnet.robotics)
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| | Re: seting up legos 0.2.6
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Scott, I only downloaded the ones listed and got it running for the most part. I did come across a few errors which seemed to be easily solved by downloading one or two packages other packages. But I am not sure if it was just user error as compared (...) (23 years ago, 11-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: seting up legos 0.2.6
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(...) Full setup of cygwin = very large You certainly need not get the XFree86 and texmf packages unless you are interested. Max. (23 years ago, 11-Jun-02, to lugnet.robotics.rcx.legos)
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| | BrickFest 2002 reminder
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This is a quick reminder that the initial registration deadline is rapidly approaching. If you haven't made up your mind yet, now's the time! BrickFest 2002 will be even better this year with lots of Technic and Mindstorms related activities going (...) (23 years ago, 11-Jun-02, to lugnet.technic, lugnet.robotics)
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| | Re: Rover Programming
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My idea to solve the IR problem would be letting the rover move around for x time and then return to IR contact before going out again. We would have to think a little bit about new obstacles but I think that it can also be solved. Jonathan ----- (...) (23 years ago, 11-Jun-02, to lugnet.robotics)
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| | seting up legos 0.2.6
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when installing cygwin is it best to download all the components or just the ones listed. scott (23 years ago, 10-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Rover Programming
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I Like your idea and mine was a lot like (URL) I thought of using the rcx as a scout and finding the path. It would relay the data back to the pc and the pc would create and download a program that would drive the rcx to end of it's map. I was (...) (23 years ago, 11-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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This idea has been kicking around the newsgroup for quite some time. Here's a discussion from back in 2000: (URL) an idea I had, very similar to what you're thinking: (URL) the unfortunate conclusion to one person's attempt: (URL) the VB computer (...) (23 years ago, 11-Jun-02, to lugnet.robotics)
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| | Re: Set 8720
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Sounds like a good deal. The set reference ((URL) lists 8720 as $36 by itself. This means only $2 for a motor! --Ian (...) (23 years ago, 11-Jun-02, to lugnet.robotics)
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| | Re: Lego mindstorms on Windows 95...
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Or swap a USB tower for a serial one with someone - I'd certainly swap mine for a USB. "Richard Carver" <mylegostuff@thecarverzone.com> wrote in message news:E17EbGv-00054I-...box.com... That's because the current IR tower requires USB and Windows (...) (23 years ago, 7-Jun-02, to lugnet.robotics.rcx)
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| | Re: RCX schematic
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(...) (URL) (23 years ago, 10-Jun-02, to lugnet.robotics.rcx.legos)
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| | RCX schematic
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Hey, Does anyone know where to find a schematic of the RCX, or at least know what output ports map to the sensors and motors? Thanks -Brent Talley (23 years ago, 6-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: Powered off, but still on?
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(...) Funny, I just posted an article here about something similar. I started using LegOS a few days ago, and had the following problem a few times: after a power off period (of several hours) the power on did not produce any visible effect, and the (...) (23 years ago, 10-Jun-02, to lugnet.robotics.rcx.legos)
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| | LegOS shorting the batteries?
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Hi, (I'm new to Mindstorms and new to LegOS so excuse me if this is a stupid/obvious question.) I'm using LegOS 0.2.6 on w2k. I built a simple rover robot, and a program to control it (2 touch sensors, a ligth sensor, 2 motors) in C, and upload it (...) (23 years ago, 10-Jun-02, to lugnet.robotics.rcx.legos)
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| | Re: problem using emulegos
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First off what OS are your running on? I do all emuLegOS development under Linux (Mandrake 8.1, not that it should matter), so if you are on any other platform you may run into issues. Of course emuLegOS should work on just about any Unix as long as (...) (23 years ago, 10-Jun-02, to lugnet.robotics.rcx.legos)
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| | **** legOS new name poll starts now ****
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Let us start the "new legOS name project". The procedure is the following: 1) send your name proposals (10.06. - 22.06.) Please mail me your name ideas. Do this with a personal e-mail to: legOS-namepoll@gmx.de The subject line should read (...) (23 years ago, 10-Jun-02, to lugnet.robotics.rcx.legos)
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| | Powered off, but still on?
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Recently, I went to use a couple RCXs that were loaded with LegOS. These two had both been used previously (about 1 to 2 weeks ago) but should have both had plenty of battery life remaining. I found that they both had drained the batteries (...) (23 years ago, 10-Jun-02, to lugnet.robotics.rcx.legos)
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| | Here I go...
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Well, I've just volunteered to give a presentation on LegOS at Brickfest 2002. I don't think I'm the most qualified person to present LegOS, but I am willing. And that seems to be the only real requirement! First, I'm a programmer (VB), and I've (...) (23 years ago, 10-Jun-02, to lugnet.robotics.rcx.legos)
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| | problem using emulegos
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hi all, im having problem using emulegos 1.2.5.0 with legOS 0.2.4 i have used legOS 0.2.4 for over 1 year now withouth any problems (including lnp), but for some reason when i type make in ~/hovedfag/emulegos/...ples/rover i get: makefile:8: (...) (23 years ago, 10-Jun-02, to lugnet.robotics.rcx.legos)
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| | Anyone coming to BrickFest and got some spare time?
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I am looking for someone who is coming to BrickFest and who has a few hours to spare to build a MOC incorporating a brand new sensor. They will of course become the owner of said new sensor! If you are interested (silly question) or have the time (...) (23 years ago, 10-Jun-02, to lugnet.robotics)
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| | Re: New Mindstorms Book
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Sounds like an excellent book. I'll be looking forward to the release. I'm teaching several Robotics courses for educators and the content of this book sounds very helpful. Tonya (...) (23 years ago, 10-Jun-02, to lugnet.robotics.edu)
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| | Re: Even better, RIS 1.5, $99.99
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"Liz B" <lego-robotics@crynwr.com> wrote in message news:E17GLmc-0004CR-...url.com... (...) <snip> oops for that last post if you do a search, (don't have the time to find reference right now) through lugnet.robotics you can find a reference to a (...) (23 years ago, 8-Jun-02, to lugnet.robotics)
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| | Re: USB tower
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(...) Ghost is included with the 2.0 SDK - (URL) USB support is different on every platform. For platforms that Lego supported, I needed to work through their drivers - otherwise people would have to install one set of drivers for NQC, and another (...) (23 years ago, 10-Jun-02, to lugnet.robotics.rcx)
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| | Set 8720
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I have a chance of buying the set 8720 with one extra motor at aprox. 10 USD ($38). Would you recommend it? Jonathan (23 years ago, 10-Jun-02, to lugnet.robotics)
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| | Re: Rover Programming
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(...) How are you doing navigation? I've been wanting to do the but every pure Lego-based approach has proved hopelessly inaccurate. Dunno about programming in VB though - sorry. ---...--- Steve Baker ---...--- Mail : <sjbaker1@airmail.net> (...) (23 years ago, 9-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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(...) Probably regulatory. Lego want to market this in many countries - and probably don't want to redesign and re-certify it in every market. The 27MHz band is widely used for toys - but you get a lot of radio interference from toys, CB radio's and (...) (23 years ago, 9-Jun-02, to lugnet.robotics)
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| | Rover Programming
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I have built a nice rover with two front sensors that just goes around hitting objects and making so its not kicked. I would like to program it better in VB or any other code that would let me show a map with every place where it has hit an object (...) (23 years ago, 10-Jun-02, to lugnet.robotics)
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| | Re: Notebook
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I've found a paper on the notebook case that says 'Amity CN 2 was designed for win 95. If you wish to upgrade to Win 98 you must disable the USB. If you expect you will be using your USB Mitsubishi will upgrade the hardware to activate the USB (...) (23 years ago, 10-Jun-02, to lugnet.robotics)
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| | Re: Notebook
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Jonathon, Here are my "short" answers: 1) Reload your laptop fresh with Windows 98 to solve USB (and other) issues. 2) It is apparently possible to use the IrDA port to control 38~40KHz IR devices (RCX, Scout, TV, VCR, DVD). 3) The darkness issue (...) (23 years ago, 10-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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I've been wondering if anybody has any ideas why they chose to go with IR as opposed to RF? The substantial limitations of IR make it highly impracticle for robotics. The only two reasons I can see would be cost or power limitations. I can't imagine (...) (23 years ago, 10-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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(...) What makes this REALLY difficult is that the communications medium is error prone - it's all too easy for two robots to get out of IR contact with each other when they are moving around. That makes all the usual protocols very difficult. In (...) (23 years ago, 9-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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I have thought about those methods as well, the only problem is when you don't work with the RCX's for just one robot. When you want to try a little bit with AI and interactions between different robots you can't have a master that requests, unless (...) (23 years ago, 9-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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(...) That's actually what my 1xRCX + 4xScout system uses. Another way to think of it is "Don't talk until the person before you has finished speaking". If each machine has a number, you can send that number embedded in the message somewhere. The (...) (23 years ago, 8-Jun-02, to lugnet.robotics)
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| | Re: Notebook
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(...) Which version of Windoze do you have - Win95 doesn't have USB drivers for example. It seems unlikely that Mitsubishi would build a PC with a USB port that Windoze can't recognise - so it's probably just some ugly Windoze installation problem. (...) (23 years ago, 8-Jun-02, to lugnet.robotics)
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| | Notebook
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I have a notebook mitsubishi, Amity CN wich has a USB port and an IR port. Does anybody know how can I use it to program RCX. Windows doesn't recognize the USB port and I don't know if installing the Lego software would. I could probably use the IR (...) (23 years ago, 9-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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There's one way for solving the problem with multiple IR communications at the same time. The method used for old computer networks is called a "token" wich is passed from PC to PC giving each one a chance to "speak". This could also be used for (...) (23 years ago, 9-Jun-02, to lugnet.robotics)
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| | USB tower
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Hello - In the past I have burned out serial port towers, so I recently acquired the USB version of the IR tower. I did not realize that NQC makes use of the lego driver - it is looking like I have to purchase an entire RIS just to get Ghost. Is (...) (23 years ago, 7-Jun-02, to lugnet.robotics.rcx)
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| | Re: Check this out
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A simple nslookup also reveals this is a lego site: i:\>nslookup www.spybotics.com *** Can't find server name for address 192.16 *** Default servers are not available Server: UnKnown Address: 192.168.1.1 Non-authoritative answer: Name: lego.com (...) (23 years ago, 9-Jun-02, to lugnet.robotics)
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| | Check this out
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Keep tuned in to a website I just came across. Looks like somethings going to happen in a couple of days (there is a countdown timer running)... www.spybotics.com If you don't think its Lego, just look at the source code. -Rob (23 years ago, 9-Jun-02, to lugnet.robotics)
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| | Terminal Emulator
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Hi, I'm trying to find a Terminal Emulator that can access the IR Tower thru a USB port. So far, the ones I found can access only a serial port (COMx). Any suggestions? Thanks Mario (23 years ago, 8-Jun-02, to lugnet.robotics.rcx.pbforth)
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| | Re: taste of java
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Your best bet for replacement firmware is leJOS ((URL) If you don't currently know Java you could try out my book, "Core Lego Mindstorms". It has a 30 page chapter that introduces Java programming concepts. - Brian (...) (23 years ago, 8-Jun-02, to lugnet.robotics.rcx.java)
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| | taste of java
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i'm looking into the posiblities of replacement firmware and was wondering how hard it would be to learn java and what would be the best way to acomplish this (23 years ago, 6-Jun-02, to lugnet.robotics.rcx.java)
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| | Re: Even better, RIS 1.5, $99.99
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(...) You can program each RCX independantly. You need to turn one off or put it out the way of the IR tower while you are downloading the program to the other of course!) That much is pretty obvious - but where the fun comes is when you get the two (...) (23 years ago, 6-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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Take a look at my version of Mibo and play the GIF or AVI and you will see two RCXs operating 6 motors and 5 sensors communicating with each other with messages to synchronize the actions of the model. Two RCXs are twice the fun. -- Bob Fay THE SHOP (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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(...) This brings up another question I have. Since I will now have two RCX's can someone give me a short summary of how to use them? Can both be used from the Mindstorms software, or is something better required (since I've only had 2.0 a week, I (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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In the end, it all comes down to the power connector on the original 1.0 RCX. If you don't mind buying batteries while you're trying to debug your code, then the version you buy doesn't matter. (And with the 2.0 firmware on the web, the contents of (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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Well, even that's negotiable. Depends if you already have a tower or not, or if you don't mind buying a second. You can pick up USB or serial towers separately on eBay or BrickLink and sell the one you don't want. The 2.0 software will use the (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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(...) In the end, the decision comes down to: * Do you need a USB tower or an RS232 serial port tower? If you need a USB tower then you've got to go with the RIS 2.0, if you need the serial port tower, you need an RIS 1.5 or an RIS 1.0. If you have (...) (23 years ago, 6-Jun-02, to lugnet.robotics)
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| | RE: Even better, RIS 1.5, $99.99
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With the compatibility issues not totally known, plus the cost of upgrading to 2.0 software, you might look at buying the 2.0 RIS on eBay or somewhere for not much more. I've seen sealed new sets go as low as $120 (usually around $140), and I (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | RE: Even better, RIS 1.5, $99.99
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So, the RCX 2.0 is virtually the same as 1.0, right? And I am assuming that the USB tower does work with the 1.0, right? Thanks for your help! -----Original Message----- From: Ralph Hempel [mailto:rhempel@bmts.com] Sent: Friday, June 07, 2002 9:30 (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | RE: Even better, RIS 1.5, $99.99
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(...) This is a good deal for a RIS 1.5 system. You can always buy a USB tower if you need one, but for anyone thinking about using alternative firmware on a non-windows machine, the 1.5 with the serial tower is easier to deal with. I think they are (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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(...) I am certainly no expert on the RCX, but here is some conjecture based upon some pieces of "evidence." First, the RCX pictured on the LEGO Shop@Home web site is the 1.0 version. Second, the LEGO Outlet (at least the one in Georgia) is selling (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | RE: CPR for RCX?
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(...) Me too, except that Forth gives you ample opportunity to hang the machine with infinite loops and errant pointers causing writes into the program space. On the bright side, I have been working on a trap handler for pushbuttons that will give (...) (23 years ago, 7-Jun-02, to lugnet.robotics.rcx.pbforth)
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| | RE: Even better, RIS 1.5, $99.99
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Even more important: Why is Lego marking down the RCX 50%? Are they discontinuing this? What is the story? I can't believe that Spy-botics is replacing this: It doesn't have the "juice." Thoughts? -----Original Message----- From: Ed Manlove (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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I found what I was looking for under support. Try (URL) for any one else wandering about that 9 volt battery it does appear to be for the serial tower. Ed (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | Re: Even better, RIS 1.5, $99.99
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What is the difference between RIS 2.0 and RIS 1.5? I see at lego.com the RIS1.5 also requires a 9 volt battery. What is this for? the serial tower? a remote control? I know I can find all the details of the RIS 2.0 at (URL) but how about the RIS (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | Re: Can the RCX 1.0 be upgrade to the latest RIS2.0 firmware?
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(...) Yes. (...) They are identical for all programming purposes (but early RCX 1.0 have a power plug). Jürgen "who even checked that the ROM contents is identical" (23 years ago, 7-Jun-02, to lugnet.robotics.rcx)
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| | Re: Cheap RCX bricks at S@H
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(...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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| | Re: Cheap RCX bricks at S@H
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What is the URL for SHop @ Home??? ----- Original Message ----- From: "Mike Payson" <mpayson@dawgdayz.com> To: <lego-robotics@crynwr.com> Sent: Thursday, June 06, 2002 4:21 PM Subject: Cheap RCX bricks at S@H Hi, I'm new to the list, but thought I'd (...) (23 years ago, 7-Jun-02, to lugnet.robotics)
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