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I NEED TO KNOW THE EXACT STEPS TO CONNECT A NEW MOTOR POWER SUPPLY TO THE HANDYBOARD WHILE IS HAS THE EXTENSION BOARD CONNECTED TO IT. IT'S TO MY UNDERSTANDING THAT THE EXTENSION BOARD SHARES THE SAME SLOT AS THE NEW MOTOR POWER SUPPLY, IS THE ANY (...) (26 years ago, 14-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: NEW POWER SUPPLY
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This was explained a week or two ago here on the list server. Check back and you'll find out what traces to cut, etc. However, I have found another way that is very simple, and does not require you to make difficult-to-fix cuts on your boards. Just (...) (26 years ago, 14-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: NEW POWER SUPPLY
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Great solution Gary! How about just pulling the L293D/SN754410 from the U11 socket, bending pin-8 out and soldering the REALLY BIG battery positive lead to it, then soldering the negative lead to pin-1 without bending it out, and then reinstalling (...) (26 years ago, 14-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: NEW POWER SUPPLY
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That is the same thing, except much easier. Plus we save donut money. However, we'd have to look at the effect of 7 volts reverse bias on the motor LED's. Plus, we'd have to make real sure not to short the bent pin 8 to the socket underneath it. (...) (26 years ago, 14-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: !!! Laser attachments for Mindstorms !!!
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(...) That sounds like what you would get if you gave two tin cans and a piece of string to the Defense Department and asked them to develop a field radio. - Robert Munafo (URL) LEGO: TC+++(8480) SW++ #+ S-- LS++ Hsp M+ A@ LM++ YB64m IC13 (26 years ago, 14-Oct-99, to lugnet.robotics)
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 | | Re: NEW POWER SUPPLY
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What about this idea? Cut the motor trace as per on Fred's website....than desolder the motor power header (the one that plug into the Handy board) on the expansion board and flip the header upward and resolder it to the expansion board. Then reuse (...) (26 years ago, 14-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: RDS Q:
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(...) Here is the message to which Jeffrey is referring: (URL) here is the actual information (imagine that!) 0...stop momentarily 1...spin 450d ccw, back to 0d, resume path 2...spin, resume at about 30d ccw of original path 3...crazy dance, resume (...) (26 years ago, 14-Oct-99, to lugnet.robotics)
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 | | Re: NEW POWER SUPPLY
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I think you win the prize for the best solution Giang! - Nick - (...) (26 years ago, 14-Oct-99, to lugnet.robotics.handyboard)
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 | | Start_process problem
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Hi When I try to start a process , the code downloads fine , it runs on the board with no errors but it only excutes the first proceess once and none of the others. void main() { start_process(fwrd()); start_process(checkir()); (...) (26 years ago, 15-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: Flex Cables (Does anyone have the 8485 CCII)
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Thanks to Kevin the 8485 Control Center II scans are available and I can finally build the T-Rex. I assumed no-one would want to part with these cables, so I found a way to make my own length of flex cables with 0.065 string trimmer line, making the (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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 | | Re: You call it risk, I call it threat, Let's call the whole thing off Dept. (was: Re: [Rumour] FBI and Mindstorms)
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(...) i wonder if these highly paid paranoids ever heard of ... encryption? like, just encrypt stuff whenever it leaves a computer? duh. nik ___...___ nikolaus heger nik@stagecast.com PGP fingerprint: 650.354.0735 970A 0D39 41BD A660 AACB 674B 747A (...) (26 years ago, 14-Oct-99, to lugnet.robotics)
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 | | questions about legOS??
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I got the latest version of legOS, and now I am lost. What else do I need to start programming? I know that the files I have aren't a program, but you download them to your RCX with your RCX program instead. Can anyone help me out? thanx (26 years ago, 15-Oct-99, to lugnet.robotics)
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 | | Data acquisition through analog input
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: base64 Content-Length: 297 2. Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: base64 Content-Length: 1408 (26 years ago, 15-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: questions about legOS??
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Thoroughly read the HOWTO at arthurdent.dorm.duke...HOWTO.html and then come back :) More seriously, you still need a lot- a compiler and a working knowledge of C, to start with. Details on the compiler are in the HOWTO, but if you don't know C, (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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 | | RE: c++
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That would not make the motion any smoother. Granted (yes it is obvious) that it would make the shuting down of the motors smoother it still does not have the desired effect. The solution I believe is somehow coding it so that as long as the button (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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 | | re: start_process problem
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My suggestion is to double check that you double check the simple things withing the code (your code should be executing an infinite loop) while(1) { code .... } If the code is more complex and involves external assembly modules, check that they (...) (26 years ago, 15-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: Start_process problem
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alex, each of your processes must be an indefinite loop. otherwise starting them up via start_process just runs through once. so, e.g.: void checkir() { while (1) { if (digital(4)) { /* go backward for some time */ /* turn a little */ /* go forward (...) (26 years ago, 15-Oct-99, to lugnet.robotics.handyboard)
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 | | stuff
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Hi everybody... I was wondering if anybody has investigated attaching more powerful motors to the RCX. Can anybody tell me (before I bother finding out myself) how to rig up a more powerful motor by getting the RCX output to control some sort of (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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 | | Mindstorms on Macs! MacDaily plans review(?)
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Hi Folks, I was browsing Mac Gamers hoping to find info on the new mactell voodoo3 cards and instead discovered this... (URL) appears the next week ( Tuesday) they plan on covering Mindstorms on Macs troubleshooting. I thought someone here might (...) (26 years ago, 15-Oct-99, to lugnet.robotics.events)
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 | | Powered Crossaxles Through a Large Technic Turntable
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In tinkering with my new robot thingy, I've come up with a design someone might find useful. I realize that it may be a bit on the obvious side to many of you advanced LEGO roboticists; however, I've seen a few people requesting more basic (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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