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SparkFun will be closed May 25, 2015 for Memorial Day. Orders placed after 2pm on Friday the 22nd will ship out on Tuesday. Thanks!

tomwwolf

Member Since: August 3, 2010

Country: United States

  • I built this board up last night and everything seems functional except the knock sensor. Both the buzzer and the knock sensor measure out at 18 ohms (the 1meg just does not matter) and the buzzer works fine. However i am just not getting a usable value from the knock sensor analog input. Since the original knock sensor was based on a piezo element and this is a coil element, is it possible that it just is not sensitive enough?
    Any suggestions on how to get it working?
    thank you
    tom w wolf

  • I built the board up last night, and so far everything seems functional except the knock sensor. Both the buzzers measure 18 ohms, and the buzzer works fine. However i cannot get a usable reading off of the knock sensor. Considering that the original knock sensor was based on a piezo element, and this is clearly a coil device, is it possible that it just is not sensitive enough?
    Any suggestions?
    tom w wolf

No public wish lists :(