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 Robotics / RCX / 1640 (-20)
  can you use the old type 9v motor with an RCX?
 
I am refering to the old type thats rectangular with 4x5 studs on top. (23 years ago, 24-Mar-02, to lugnet.robotics.rcx)
 
  is it possible to use a polarity switch with a RCX input?
 
Basicly, what I want is a button, switch or whatever on my model that when moved one way causes one input to be sent to the RCX but when moved differently it causes a different input to be sent to the RCX. Should also have a 3rd "off" state. I am (...) (23 years ago, 24-Mar-02, to lugnet.robotics, lugnet.robotics.rcx)
 
  Re: RIS 2.0 or 1.5 (minimum requirements)
 
Just came across youre discussion, and I thought this might help... Lego is usually a bit overreacting whit the systemrequirements. I've runned RIS 1.5 on an 486 whit 20 MB ram and 1 MB video,and the sysreq's from lego said it required an (...) (23 years ago, 21-Mar-02, to lugnet.robotics.rcx)
 
  Re: Spectrum as source of Technic Spares
 
According to their customer service, they are not allowed to sell Lego in the USA. ----- Original Message ----- From: "Mike Fusion" <mikefusion@hotmail.com> To: <lugnet.technic@lugnet.com>; <lugnet.robotics.rcx...ugnet.com> Sent: Friday, March 15, (...) (23 years ago, 21-Mar-02, to lugnet.technic, lugnet.robotics.rcx)
 
  Re: Cleaning the RCX
 
Hi Chris, Thanks for the input. This is the kind of information I need. I have always relied on alcohol as a cleaner for contacts and I did not think of the effect it might have on the rubber contact. I thought the button might be a carbon contact. (...) (23 years ago, 18-Mar-02, to lugnet.robotics.rcx)
 
  Re: Cleaning the RCX
 
(...) Bob: Great page. :) I have one point of interest. When I have used Isopropyl Alcohol (at 99%) to clean the button contacts of tv remote controls, I have found that the black "rubber" button can degrade and erode. Maybe someone with more (...) (23 years ago, 18-Mar-02, to lugnet.robotics.rcx)
 
  Cleaning the RCX
 
I have been working on a page to assist in the cleaning of the contacts on the RCX. Principally the battery connections to the pc board and the control button contacts. If you have performed this service before, please check my work and see if (...) (23 years ago, 18-Mar-02, to lugnet.robotics.rcx)
 
  3Com HomeConnect camera - very Lego-compatible
 
Hey, I just discovered that my 3Com HomeConnect USB camera is extremely Lego-compatible. It's so close I have a feeling it's not an accident. I built a very nice pan-tilt mechanism for it. What fun! Anyway, now I don't feel so bad that I bought the (...) (23 years ago, 17-Mar-02, to lugnet.robotics.rcx, lugnet.robotics.vc)
 
  Re: Spectrum as source of Technic Spares
 
"Ralph Hempel" <rhempel@bmts.com> wrote in message news:CAEBIOGHPFFJALB...mts.com... (...) (URL) mpSearchCode=SP> (...) ummm, is that US funds or Canadian cause if it's Canadian then those prices are really cheap. my 0.02USD mike "new job" fusion (23 years ago, 16-Mar-02, to lugnet.technic, lugnet.robotics.rcx)
 
  Spectrum as source of Technic Spares
 
With all of the back and forth lately on the lack of Technic spares, I've found that Spectrum Educational Supplies in Aurora Ontario has many hard-to-get parts, including the little pneumatic pumps. Without keeping everyone in suspense... Specturm (...) (23 years ago, 15-Mar-02, to lugnet.technic, lugnet.robotics.rcx)
 
  Book on Programming the RCX with Java
 
If anyone would like more information on the new book "Core Lego Mindstorms Programming" check out my announcement on Lugnet: (URL) (23 years ago, 12-Mar-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.java)
 
  Re: Is the program running?
 
"Barney Hilken" <barneyhilken@mac.com> wrote in message news:Gsq8J6.Ds9@lugnet.com... (...) There is no direct way to interrogate the RCX with standard firmware. However, it could be simply handled programmatically. Use a global variable to set a (...) (23 years ago, 10-Mar-02, to lugnet.robotics.rcx)
 
  Is the program running?
 
Does anyone know how to poll the RCX (with standard firmware 2.0) to find out whether a program has terminated yet? If you can see the LCD, you can see whether the little man is still moving, but can you check this from a host computer? The (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx)
 
  Re: Deleting Programs
 
(...) If you mean wiping the firmware, press ON and Prgm at the same time. If you want to delete individual programs, I've cooked up a little C code (on the PC side) to do that. It requires liblnp and lnpd. If you want, I'll post it or e-mail it to (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx)
 
  Re: BricxCC release 3.3.4.2
 
(...) First, you are doing a great job! The support for pbForth is a good idea. And there is only one thing to make BricxCC better, if someone port it to Linux. Best Regards Joerg (23 years ago, 8-Mar-02, to lugnet.robotics.rcx)
 
  BricxCC release 3.3.4.2
 
I've just released a new version of BricxCC. This release add support for downloading non-standard firmwares (such as pbForth). I've also added support for several languages other than NQC with user customizable syntax highlighting. These languages (...) (23 years ago, 7-Mar-02, to lugnet.robotics.rcx)
 
  Re: ForthPad v0.9
 
I'm re-posting this message at the lugnet.robotics.rcx level in case anyone missed it. I've put together a stand-alone application which I am calling ForthPad. It is a Windows executable which should run on any version of Windows from 95 on up. It (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx)
 
  RE: h8/300 16-bit multiply
 
(...) <snipped code...> Are you sure that it works for signed numbers :-) (...) If you like, I can give you some notes on how my Forth was developed. I'm using a simple pseudo-assembler that lets me port this Forth to a new processor in less than a (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx)
 
  Re: h8/300 16-bit multiply
 
Thanks. I have a version just 2 words longer that doesn't use the ROM code. Basically it's the ROM's code, trimmed down after assuming high words are zero initially. It's completely untested though, so there may be a bug. CODE UM* \ 16x16=32 (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx)
 
  RE: h8/300 16-bit multiply
 
(...) The easiest thing is to cast your 16 bit values to 32 bits and use the built-in 32x32 multiply... Here's the code from pbForth that does it. (It's written in a pseudo- assebler, but you can probably figure it out...) #---...--- # UM* UM* ( u1 (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx)


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