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Projects/Catch_A_Lunch_Thief/README.md Normal file
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## **Catch a Lunch Thief**
Have you ever had your lunch stolen? This project will help you find the culprit! Using the GrovePi, a Raspberry Pi, and a Raspberry Pi camera this project will e-mail you when your lunch is moved, taking a picture of the offender and helping you nab the lunch thief.
See more at the [GrovePi Site](http://dexterindustries.com/GrovePi/)
## License
.
The MIT License (MIT)
GrovePi for the Raspberry Pi: an open source platform for connecting Grove Sensors to the Raspberry Pi.
Copyright (C) 2017 Dexter Industries
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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Projects/Catch_A_Lunch_Thief/catch_a_lunch_thief.py Normal file
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#! /usr/local/bin/python
# This project by Dexter Industries will help you figure out who's stealing your lunch! In
# this project, we will use the GrovePi to take a picture of the culprit when the light in
# your fridge turns on. We will use the light detector for Grove to detect when the fridge
# door has been opened.
#
# Hardware Setup:
# - Use the Raspberry Pi and GrovePi. (http://www.dexterindustries.com/shop/grovepi-starter-kit-2/)
# - Use the Raspberry Pi camera. (http://www.dexterindustries.com/shop/raspberry-pi-camera/)
# - Connect the light sensor to A0. (http://www.dexterindustries.com/shop/grove-light-sensor/)
# You can adjust the threshold value if you have a bright environment.
# Change the email_destination to change the destination you send an e-mail to.
import time
import datetime
import grovepi
import picamera
import send_email_pic
email_destination = 'examples@dexterindustries.com' # Change this to the destination e-mail.
destination = [email_destination] # We put it into an array.
# Connect the Grove Light Sensor to analog port A0
# SIG,NC,VCC,GND
light_sensor = 0 # Connect the light sensor to A0 Port.
grovepi.pinMode(light_sensor,"INPUT") # Set the A0 port to input.
# Send a picture once sensor exceeds threshold resistance
threshold = 600 # Adjust this threshold higher or lower
# Depending on how bright your fridge is.
camera = picamera.PiCamera() # Setup the Pi Camera
# Simple function to get the date as a string.
def get_time_string():
dateString = '%Y-%m-%d_%H-%M-%S'
return_string = datetime.datetime.now().strftime(dateString)
return return_string
while True:
try:
# Get sensor value. Read the light sensor.
sensor_value = grovepi.analogRead(light_sensor)
# Sense the light coming on, within the target range
if sensor_value > threshold:
print ('The fridget light is on!') # Print a note to let us know how it goes.
file_name = "lunch_status-"+str(get_time_string())+".jpg"
camera.capture(file_name) # Take a picture and save it to file_name
# Now send an e-mail
send_email_pic.send_email("The fridge has been opened!", destination, "The fridge has been opened!", file_name)
else:
print ('.') # Do nothing! It's still dark.
time.sleep(.5) # If your hold time is less than this, you might not see as many detections
except IOError:
print ("Error")

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Projects/Catch_A_Lunch_Thief/send_email_pic.py Normal file
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#! /usr/local/bin/python
# This example will show you how to send an email in python, with a picture
# attachment. This example uses outlook.com to send an e-mail.
SMTPserver = 'smtp.live.com'
sender = 'dexterexamples@outlook.com'
USERNAME = "dexterexamples@outlook.com"
PASSWORD = "password"
text_subtype = 'plain' # typical values for text_subtype are plain, html, xml
content="""\ Test message """
import sys
import os
import re
# from smtplib import SMTP_SSL as SMTP # this invokes the secure SMTP
# protocol (port 465, uses SSL)
from smtplib import *
from smtplib import SMTP # use this for standard SMTP protocol (port 25, no encryption)
from email.MIMEText import MIMEText
# Here are the email package modules we'll need for images.
from email.mime.image import MIMEImage
from email.mime.multipart import MIMEMultipart
def send_email(content, destination, subject, file):
try:
msg = MIMEMultipart()
msg['Subject']= subject
msg['From'] = sender # some SMTP servers will do this automatically, not all
fp = open(file, 'rb') # Open File name "file"
img = MIMEImage(fp.read()) # Read the file.
fp.close() # Good housekeeping: close the file.
msg.attach(img) # Attach the file to the message.
conn = SMTP(SMTPserver, port = 587, timeout = 60) # timeout is critical here for long term health.
conn.ehlo()
conn.starttls()
conn.ehlo()
conn.login(USERNAME, PASSWORD)
conn.set_debuglevel(1)
try:
conn.sendmail(sender, destination, msg.as_string())
finally:
conn.close()
except Exception as exc:
# Print a message error!
print("Mail failed; %s" % str(exc))
print("Moving on!")
# Example function call! This is what calling the function would look like!
# send_email(content, destination, subject, file) where "content" is the content of the email, destination is the destination
# of the e-mail (who you're emailing to) and subject is the subject of the e-mail. file is the filename of the image file
# you want to attach. It's usually best to include the full path of the file!
file = "/home/pi/test.jpg"
destination = ['examples@dexterindustries.com'] # Enter the destination e-mail address here, between the ''
send_email("Hello from my Raspberry Pi!", destination, "Hello from Dex!", file)