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https://github.com/KevinMidboe/curtains_avantGarde.git
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63 lines
1.4 KiB
Python
63 lines
1.4 KiB
Python
from time import sleep
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import RPi.GPIO as gpio
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class Stepper:
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# Initiate stepper
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# Pins = [pin1, pin2, pin3, pin4]
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def __init__(self, pins):
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self.pins = pins
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self.pin1 = self.pins[0]
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self.pin2 = self.pins[1]
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self.pin3 = self.pins[2]
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self.pin4 = self.pins[3]
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gpio.setmode(gpio.BCM)
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for pin in self.pins:
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gpio.setup(pin, gpio.OUT)
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gpio.output(pin, False)
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# Clears the GPIO settings
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def cleanGPIO(self):
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gpio.cleanup()
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def step(self, rotations, dir, speed=1, forever=False):
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StepSequence = range(0, 8)
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StepSequence[0] = [GpioPins[0]]
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StepSequence[1] = [GpioPins[0], GpioPins[1]]
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StepSequence[2] = [GpioPins[1]]
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StepSequence[3] = [GpioPins[1], GpioPins[2]]
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StepSequence[4] = [GpioPins[2]]
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StepSequence[5] = [GpioPins[2], GpioPins[3]]
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StepSequence[6] = [GpioPins[3]]
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StepSequence[7] = [GpioPins[3], GpioPins[0]]
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for pin in self.pins:
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gpio.output(pin, True)
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turnLeft = True
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if (dir == 'right'):
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turnLeft = False
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elif (dir != 'left'):
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raise ValueError('STEPPER ERROR: no direction supplied')
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return False
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steps = rotations * 500
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waitTime = 0.000001/speed
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while steps > 0:
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for pinList in stepSequence:
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for pin in self.pins:
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if pin in pinList:
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GPIO.output(pin, True)
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else:
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GPIO.output(pin, False)
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sleep(waitTime)
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steps -=1
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if __name__ == '__main__':
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pins = [17, 18, 27, 22]
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stepper = new Stepper(pins)
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stepper.step(2, 'left') |