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Infrared diode and motor


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  Sorry, Staigen. I'm an electronic newbies. Can any expert or non expert help me to solve my problem because I'm do not have any idea? Do you have any tutorial or good webpage to intro to me. My question is as below:-

Hi! I need to use an infrared diode to calculate the number of coins drop, may I know what type of infrared diode is suitable? I also need to do use a motor to vibrate the coins to make it fall down the slope, may I know what kind of motor can I use?

  Thank you first for your kind help.  :)

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