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 Robotics / Handy Board / *5608 (-5)
  L.E.D. question.
 
What are the L.E.D. voltage ratings for the L.E.D's on the interface board I purchased one(at Radio shack) with a rating of five volts. Which should be O.K right? any help would be appreciated. I have to improvise to get such components cheap. Thanx (...) (28 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
 
  Re: Shaft encoder sensors...
 
Kathy, Digi-Key has three kinds. The first two look like the "Mobile Robots" type: QRB1114QT-ND $1.58 QRB1134QT-ND $2.83 The third one looks like a much more compact arrangement: QRD1114QT-ND $1.50 These are on Page 552 of the January-March catalog. (...) (28 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
 
  Re: Shaft encoder sensors...
 
(...) The Hamamatsu P3062-01 IR photoreflector mentioned in MR was discontinued and replaced by the P5587. This chip has the identical pinout and dimensions as the original. I ordered several from Hamamatsu last year but they are pricey (~$7/ea) in (...) (28 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
 
  photoreflective sensors
 
Kathy($B!)(B) wants photoreflective sensors for shaft encoder. How about the products of Toshiba? See (URL) ***...*** takatsu@isenshu-u.ac.jp School of Science and Technology, Ishinomaki Senshu University 986-8580 Ishinomaki, Miyagi, JAPAN (28 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
 
  Shaft encoder sensors...
 
Can anyone help? My team is trying to get a shaft encoder to work, but cannot find a chip that will work correctly to count the black and white stripes on the wheel. We would like to use a chip which can be connected directly to the digital inputs (...) (28 years ago, 22-Feb-99, to lugnet.robotics.handyboard)

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