Circuit change question

Discussion in 'The Projects Forum' started by ricker24, Feb 12, 2016.

  1. ricker24

    Thread Starter Member

    Mar 5, 2011
    53
    0
    Found this circuit online and was wondering if it could be changed to count with a momentary switch instead of using the hall sensors?
     
  2. dl324

    Distinguished Member

    Mar 30, 2015
    3,250
    626
    You'll need to debounce the switches.
     
  3. #12

    Expert

    Nov 30, 2010
    16,346
    6,835
    True. A millisecond isn't enough. Try 10 to 20 times that much capacitance.
     
  4. ScottWang

    Moderator

    Aug 23, 2012
    4,855
    767
    The debounce circuit just using two resistors and one capacitor, but I haven't try it with op amp, the 47nF change to 1uF and 220K change to 47K, and 47K connecting to another 47K to Ground, the switch is connecting from the common pin of two 47K to 4.7K as the pin 1 of hall IC.
     
  5. AnalogKid

    Distinguished Member

    Aug 1, 2013
    4,546
    1,252
Loading...