planktoscope/scripts/pump.py
2019-12-14 20:40:50 -08:00

47 lines
1.1 KiB
Python

#!/usr/bin/env python
#Strating pumping foward a vol of 24ml with a flowrate of 3.2ml/min, use this command line :
#python3.7 path/to/file/pump.py 24 3.2 foward
from adafruit_motor import stepper
from adafruit_motorkit import MotorKit
from time import sleep
import sys
volume = int(sys.argv[1])
flowrate = float(sys.argv[2])
action = str(sys.argv[3])
kit = MotorKit()
pump_stepper = kit.stepper1
pump_stepper.release()
def pump(volume, flowrate, action):
if action == "foward":
action=stepper.BACKWARD
if action == "backward":
action=stepper.FORWARD
nb_step=volume*507 #if sleep(0.05) in between 2 steps
#35000steps for 69g
#nb_step=vol*460 if sleep(0) in between 2 steps
duration=(volume*60)/flowrate
delay=(duration/nb_step)-0.005
for i in range(nb_step):
pump_stepper.onestep(direction=action, style=stepper.DOUBLE)
sleep(delay)
sleep(1)
pump_stepper.release()
#volume, flowrate (from 0 to 20), direction (foward or backward)
pump(volume, flowrate, action)