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2
.gitignore
vendored
Normal file
2
.gitignore
vendored
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@ -0,0 +1,2 @@
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laundry_notifier/laundry_notifier.conf
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@ -1,20 +1,16 @@
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import time
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import datetime
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import smtplib
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import configparser
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import logging
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import math
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from email.mime.text import MIMEText
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import smtplib
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import time
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from datetime import datetime
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from email.mime.text import MIMEText
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import requests
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from microstacknode.hardware.accelerometer.mma8452q import MMA8452Q
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EMAIL_USERNAME = 'noreply@ianonavy.com'
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EMAIL_PASSWORD = 'S2PENjQbO6=cHgchw@CXs.bJ'
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RECIPIENT_EMAILS = [
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'ianonavy@gmail.com',
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'dmurvihill@gmail.com',
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'5038304363@tmomail.net'
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]
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RECIPIENT_EMAILS = ['ianonavy@gmail.com']
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ALERT_EMAIL_TEXT = """Hi,
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Your laundry is done. Or maybe your roomate's. I don't know.
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@ -27,6 +23,8 @@ INTERVAL = 0.005 # seconds
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WINDOW_SIZE = 1000 # intervals
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THRESHOLD = 0.025 # G's
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MAX_EMAIL_FREQUENCY = 60 # seconds
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MAX_NOTIFICATION_FREQUENCY = 60 # seconds
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CONFIG_FILE_PATH = '/home/pi/laundry-notifier/laundry_notifier/laundry_notifier.conf'
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def average(s):
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@ -41,8 +39,8 @@ def stdev(s):
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return math.sqrt(average(list(variance)))
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def notify_user(recipient_email_address):
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print("Alerting " + recipient_email_address)
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def notify_user(username, password, recipient_email_address):
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logging.info("Alerting " + recipient_email_address)
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msg = MIMEText(ALERT_EMAIL_TEXT)
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@ -53,8 +51,6 @@ def notify_user(recipient_email_address):
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msg['To'] = recipient_email_address
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# Send the message via our own SMTP server.
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username = EMAIL_USERNAME
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password = EMAIL_PASSWORD
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server = smtplib.SMTP('smtp.gmail.com:587')
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server.starttls()
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server.login(username, password)
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@ -71,21 +67,37 @@ def enqueue(sliding_window, item):
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def amplitude_stdev(sliding_window):
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standard_deviations = {}
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for key in ('x', 'y', 'z'):
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values = [instance[key] for instance in sliding_window]
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values = [measurement[key] for measurement in sliding_window]
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standard_deviations[key] = stdev(values)
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return standard_deviations
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def send_emails(last_email_sent_at):
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print((datetime.now() - last_email_sent_at).seconds) # for debugging
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# limit frequency of emails
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if (datetime.now() - last_email_sent_at).seconds > MAX_EMAIL_FREQUENCY:
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def send_notifications(last_notification_sent_at, iftttkey):
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seconds_since_last_notification = \
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(datetime.now() - last_notification_sent_at).seconds
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logging.info("Sending notification after %ds" % seconds_since_last_notification)
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# limit frequency of notifications
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if seconds_since_last_notification > MAX_NOTIFICATION_FREQUENCY:
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[notify_user(email) for email in RECIPIENT_EMAILS]
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# Notify if this, then that
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requests.get(
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'https://maker.ifttt.com/trigger/laundry_done/with/key/%s'
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% iftttkey)
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return datetime.now()
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return last_email_sent_at
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return last_notification_sent_at
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def main():
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LOG_FORMAT = '%(asctime)-15s %(message)s'
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logging.basicConfig(format=LOG_FORMAT)
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logging.getLogger().setLevel(logging.INFO)
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logging.info('Started laundry notifier')
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config = configparser.ConfigParser()
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config.read(CONFIG_FILE_PATH)
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notifications_section = config['notifications']
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iftttkey = notifications_section['ifttt_key']
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email_username = notifications_section['email_username']
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email_password = notifications_section['email_password']
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with MMA8452Q() as accelerometer:
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# Configure accelerometer
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accelerometer.standby()
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@ -97,20 +109,27 @@ def main():
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sliding_window = []
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dryer_state = 'off'
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last_email_sent_at = datetime(1970, 1, 1, 0, 0, 0)
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last_notification_sent_at = datetime(1970, 1, 1, 0, 0, 0)
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while True:
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g_values = accelerometer.get_xyz()
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enqueue(sliding_window, g_values)
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sliding_stdev = amplitude_stdev(sliding_window)
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print(sliding_stdev, dryer_state, len(sliding_window))
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# don't send emails right at the beginning
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if g_values:
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if sliding_stdev['x'] < THRESHOLD:
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# Notify recipients on state transitions from 'on' to 'off'
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if dryer_state == 'on':
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last_email_sent_at = send_emails(last_email_sent_at)
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logging.info('Dryer turned off; sliding stdev is %f' % sliding_stdev['x'])
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last_notification_sent_at = send_notifications(
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last_notification_sent_at,
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email_username,
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email_password,
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iftttkey)
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dryer_state = 'off'
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else:
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# Log state transitions from 'off' to 'on'
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if dryer_state == 'off':
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logging.info('Dryer turned on; sliding stdev is %f' % sliding_stdev['x'])
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dryer_state = 'on'
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time.sleep(INTERVAL)
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