rpm measurement

Discussion in 'The Projects Forum' started by jobinjoseph, Mar 15, 2014.

  1. jobinjoseph

    Thread Starter New Member

    Mar 15, 2014
    1
    0
    i like to know how to check moc7811 and how to use it for counting rpm.i try to find it by using the following ckt....bt even the conter is not working properly...i like it to use as my miniproject
    [​IMG]
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,500
    2,365
    No circuit shown?
    Fairly easy to set up, there is many shown in the Google 'Images for MOC7811'.
    You need a slotted wheel of some kind of course.
    More project info needed!
    Max.
     
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