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project help

Discussion in 'General Electronics Discussion' started by jpike, Apr 16, 2010.

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  1. jpike


    Apr 16, 2010
    I am building a coil winder with a photo-sensor and digital counter.
    I have a few questions the photo sensor is a Omron EE-sx672 and the digital counter is a
    KEP mini kal1.
    I will post schematics but this is my 1st post so it wont let me. so i will post in a minute.
    what i need to know is do i need to step the voltage down from the output of the photo sensor to the counter.
    if anyone can show how the wiring between the 2 should be it would help a lot .
    I am not a electrical engineer .
    this is what i am attempting to build: instructions.pdf
    Last edited: Apr 16, 2010
  2. jpike


    Apr 16, 2010
    I should also mention i have a 9v power source and will be stepping it down to a 3v for the counter



    Mini-kal1 counter

  3. Resqueline


    Jul 31, 2009
    The photo sensor output doesn't have a voltage output, only an open-collector output, so there's no need to step down any voltage.
    Just hook the mini-kal in as load2 and connect RL to 3V and you're done.
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