44 lines
782 B
Python
44 lines
782 B
Python
from adafruit_motor import stepper
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from adafruit_motorkit import MotorKit
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from time import sleep
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from datetime import datetime
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import time
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kit = MotorKit()
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pump = kit.stepper2
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pump.release()
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def pump_volume(vol, flowrate):
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nb_step=vol*507 #if sleep(0.05) in between 2 steps
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#35000steps for 69g
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#nb_step=vol*460 if sleep(0) in between 2 steps
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duration=(vol*60)/flowrate
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delay=(duration/nb_step)-0.005
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#flowrate is about 2.2ml/min
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for i in range(nb_step):
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pump.onestep(direction=stepper.FORWARD, style=stepper.DOUBLE)
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sleep(delay)
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print(delay)
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sleep(1)
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pump.release()
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volume=1
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flowrate=1 #20 is the max
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start = time.time()
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pump_volume(volume, flowrate)
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end = time.time()
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duration = end-start
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print(duration)
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