motion sensor

hi! does anyone knows how to make a motion snsor or a distance meter. please provide me a link or a shematic diagram thanks!!!

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You will need to provide a lot more detail about what you are hoping to do. Sensing something 1inch away is quite a different task from something 1 mile away. The purpose of your efforts are also important to know. Have you done any searches on the internet?
Joe Dunfee
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You don't need to reinvent the wheel but study reversed engineered circuits. See http://scratchpad.wikia.com/wiki/InfraRedLeds
Take a physical circuit that does what you want it to do and send it to the reverse engineering company as listed on IRleds.
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snipped-for-privacy@gmail.com wrote:

http://www.google.com/search?q=ir+distance+sensor
http://zuff.info/RangeFindersComp_E.html
http://www.robotshop.ca/PDF/Phidgets-Sensors.pdf
--
Curt Welch http://CurtWelch.Com /
snipped-for-privacy@kcwc.com http://NewsReader.Com /
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