 | | Re: RCX as a PGP engine
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(...) I just 'ported' (euphemism for minor modifications) some code lingering on the web for fun and voila: MD5 on RCX is up and running (lejos). If anyone's interested, I can post the code. It allows for authentication (PC sends random challenge, (...) (23 years ago, 18-Mar-02, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.java)
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| | Re: motors are stuck...
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(...) This applies to the red 2x2 micromotor, not to the mini or power motor found in the RIS. I vaguely remember (try searching in LUGNET news) that the way to save a power motor, if at all possible, is to apply power in the right way, and not to (...) (23 years ago, 18-Mar-02, to lugnet.robotics.rcx.legos)
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| | H8 assembler
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I'm working on a syntax highlighter for H8 assembler for BricxCC. I downloaded a couple PDFs from Hitachi's website. I have the H8/300 Programming Manual (e602025_h8300.pdf) and THE INTRODUCTION OF HITACHI H8 MICROCOMPUTERS (introduction_h8.pdf). (...) (23 years ago, 18-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: motors are stuck...
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According to a book by Ferrari brothers ("Building Robots With Lego Mindstorms") here's what you can try: --- How to release a Jammed Micromotor A micromotor jams so easily, you should know what to do when it occurs. The following list should help: (...) (23 years ago, 18-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Cleaning the RCX
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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)
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| | Re: Cleaning the RCX
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(...) 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)
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| | Cleaning the RCX
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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)
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| | Re: motors are stuck...
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just give Lego a call at 1-800-363-2140 they'll have the new stuff in the mail the next day. you don't need to send in the broken parts either ...although for the sake of all Lego enthusiasts please don't take advantage of that. good luck "Jeremy (...) (23 years ago, 17-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: motors are stuck...
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Thanks for the follow-ups. Well, he's still a "friend" - after all he did give me the stuff for free and with no guarantees that it would work. I guess it'll just be a chance to crack open one of these babies! I think the stuff is pretty old, and (...) (23 years ago, 17-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: motors are stuck...
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You may also be able to return them to Lego for free and get replacements, it depends on how old they are. I would try before you have to buy a new motor, they aren't the cheapest. Andy ----- Original Message ----- From: "Benton Jackson" (...) (23 years ago, 17-Mar-02, to lugnet.robotics.rcx.legos)
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