3-dimensional printer project, pls. Help!

Discussion in 'Embedded Systems and Microcontrollers' started by oath111, Dec 17, 2013.

  1. oath111

    Thread Starter New Member

    Dec 17, 2013
    Good day! A problem shared is a problem solved. Fellows, please I need an urgent assistance in overcoming a serious challenge I'm facing interfacing my Microcontroller with a stepper motor controller PC through the parallel port.
    I am trying to fabricate locally a 3-Dimensional printer as my final year project, I've successfully constructed the machine but the technical part seems to be very tough.
    I am using a U-2 stepper motor controller/Decoder to control the stepper motors, but i don't know the exact pins of the parallel port cable the 'A-STEP, A-DIRECTION, B-STEP and B-DIRECTION' pins of the IC (as shown in the attachment) are to be connected to.
    This is urgent pls. thanks
  2. MrSoftware


    Oct 29, 2013
  3. John P

    AAC Fanatic!

    Oct 14, 2008
    Are 2N2222's and 1N914's really suitable for a motor driver? They must be small motors.