3.5v from lpt1

Discussion in 'The Projects Forum' started by fadimore, Mar 13, 2012.

  1. fadimore

    Thread Starter New Member

    Feb 12, 2012
    1
    0
    I have 3.5v only from my pc at parallel port that cause the stepper motor works roughly , when i plugged 5v to the driver the motor work smoothly
     
  2. t06afre

    AAC Fanatic!

    May 11, 2009
    5,939
    1,222
    You should be very happy that you still have a working printer port. A printer port can only supply a limited amount of current. At the best around 5 mA I will guess.
     
  3. DickCappels

    Moderator

    Aug 21, 2008
    2,647
    632
    So...the implication is that you should use buffers of some sort with an external 5 V (or whatever is needed) to power the buffers.
     
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