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 | | Hall Effect Trans.
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| I have to measure the speed of a wheel similiar to a bicycle wheel. I figure the best way (or at least one way) to do it is to use a hall effect transistor switching into a counter. Does anyone have any suggestions for a part/manufacturer to use for (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
| | | | | Re: Hall Effect Trans.
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| I'd like to hear what you come up with as well. Presently I just use the magnet/coil sensor pairs that you can buy in any bike store. You just hook the shield to ground, and the other wire to, say, an input-capture pin of a 68HC11, with a 3.3 K pull (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
| | | | | Re: Hall Effect Trans.
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| I'd like to hear what you come up with as well. Presently I just use the magnet/coil sensor pairs that you can buy in any bike store. You just hook the shield to ground, and the other wire to, say, an input-capture pin of a 68HC11, with a 3.3 K pull (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
| | | | | Thanks fro the reply...
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| Well, so thanks fro your reply, you make feel live. You are rigth , Fred are right and so chuck are rigth.I'm very obsesive and may be not exist a answer short to my questions , sorry for my self. Your answer is very useful for my, but i don't know (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
| | | | | More juice
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| Can you parallel a 9.6v eight pack NiCad cell to the HB Nicad pack? Has anyone done this with success? If so, does it charge properly? jm (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
| | | | | re: magnetic card readers
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| dear german, i think what's going on is that you are asking very open-ended questions that require a lot of work to compose a helpful response. if i remember right, your earlier question was with regard to networking using the spi port of long (...) (27 years ago, 10-Aug-97, to lugnet.robotics.handyboard)
| | | | | positioning of robot
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| Hello, First my apolgies for my bad english (my dutch is mutch better but afcouse thats becoust dutch is my first language). anyway. im working on a robot and use lego to test the best way for moving a robot. i see 3 options.. 2 weels, 4 weels (like (...) (27 years ago, 10-Aug-97, to lugnet.robotics.handyboard)
| | | | | Re: Voltage
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| Yeah, the 12V goes into the motor power pin of the L293's. Thus you will get a higher than 9.6 motor voltage. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical (...) (27 years ago, 9-Aug-97, to lugnet.robotics.handyboard)
| | | | | Re: 3v motors
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| Yeah, you're right. I hadn't realize that constraint of the L293's. Sorry :b ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the (...) (27 years ago, 9-Aug-97, to lugnet.robotics.handyboard)
| | | | | Voltage
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| Hello all, Fred Martin may have said something to this list about 12v being ok as a battery voltage.If so does the motor drive voltage go up accordingly? Thank you for your help, Joe Martin Email:joema@mpx.com.au (27 years ago, 9-Aug-97, to lugnet.robotics.handyboard)
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