From 61ec2fd6b75fdefb606eedc6ceb0c361e74422d7 Mon Sep 17 00:00:00 2001 From: tpollina Date: Fri, 13 Dec 2019 10:39:50 -0800 Subject: [PATCH] Create pump.py --- scripts/pump.py | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 scripts/pump.py diff --git a/scripts/pump.py b/scripts/pump.py new file mode 100644 index 0000000..b5a46d9 --- /dev/null +++ b/scripts/pump.py @@ -0,0 +1,41 @@ +#!/usr/bin/env python +from adafruit_motor import stepper +from adafruit_motorkit import MotorKit +from time import sleep + +import sys + +vol = int(sys.argv[1]) +flowrate = float(sys.argv[2]) +dir = str(sys.argv[3]) + +kit = MotorKit() + +pump_stepper = kit.stepper2 + +pump_stepper.release() + +def pump(vol, flowrate, dir): + + if dir == "foward": + dir=stepper.FORWARD + if dir == "backward": + dir=stepper.BACKWARD + + nb_step=vol*507 #if sleep(0.05) in between 2 steps + #35000steps for 69g + + #nb_step=vol*460 if sleep(0) in between 2 steps + duration=(vol*60)/flowrate + + delay=(duration/nb_step)-0.005 + + for i in range(nb_step): + pump_stepper.onestep(direction=dir, style=stepper.DOUBLE) + sleep(delay) + + sleep(1) + pump_stepper.release() + +#volume, flowrate (from 0 to 20), direction (foward or backward) +pump(vol, flowrate, dir)