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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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