digital tachometer

Discussion in 'The Projects Forum' started by kapzan, Dec 10, 2011.

  1. kapzan

    Thread Starter New Member

    Nov 24, 2011
    1
    0
    hi,
    i m kapil and i have to make a digital tachometer (to measure in rpm),and the obligations to my project is that, that i can only use 7--- and 4--- series ICs (without a MC or uC). And its gapping time should be 0.1s (can measure around 400rpm).Can anyone help me out...plzzzz

    thanking you,
    kapzan
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,123
    3,047
    What is generating your indicator pulse? And how do you plan to display the result? What is your power source?

    Is this a homework project?
     
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