digital tachometer

Thread Starter

kapzan

Joined Nov 24, 2011
1
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
 

wayneh

Joined Sep 9, 2010
16,384
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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