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freegroup/PiStep2.py

Created November 30, 2019 15:17
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  1. freegroup created this gist Nov 30, 2019.
    57 changes: 57 additions & 0 deletions PiStep2.py
    View file
    Original file line number Diff line number Diff line change
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    # Stel de GPIO pinnen in voor de stappenmotor:

    import sys
    import time
    import RPi.GPIO as GPIO

    # Use BCM GPIO references
    # instead of physical pin numbers
    GPIO.setmode(GPIO.BCM)
    StepPins = [23,24,25,4]

    # Set all pins as output
    for pin in StepPins:
    GPIO.setup(pin,GPIO.OUT)
    GPIO.output(pin, False)

    # Define advanced sequence
    # as shown in manufacturers datasheet
    Seq = [[1,0,0,1],
    [1,0,0,0],
    [1,1,0,0],
    [0,1,0,0],
    [0,1,1,0],
    [0,0,1,0],
    [0,0,1,1],
    [0,0,0,1]]

    StepCount = len(Seq)
    StepDir = 1 # Set to 1 or 2 for clockwise
    # Set to -1 or -2 for anti-clockwise

    WaitTime = 0.001

    # Initialise variables
    StepCounter = 0

    # Start main loop
    while True:

    for pin in range(0, 4):
    xpin = StepPins[pin]#
    if Seq[StepCounter][pin]!=0:
    GPIO.output(xpin, True)
    else:
    GPIO.output(xpin, False)

    StepCounter += StepDir

    # If we reach the end of the sequence
    # start again
    if (StepCounter>=StepCount):
    StepCounter = 0
    if (StepCounter<0):
    StepCounter = StepCount+StepDir

    # Wait before moving on
    time.sleep(WaitTime)