Omkar Kolate
Published

Capstone Project

Analyze temperature change and send an email if it crosses the threshold. It also does anomaly detection.

IntermediateFull instructions provided5 hours573
Capstone Project

Things used in this project

Hardware components

Bolt WiFi Module
Bolt IoT Bolt WiFi Module
×1
Temperature Sensor
Temperature Sensor
×1
Male/Female Jumper Wires
Male/Female Jumper Wires
×1

Software apps and online services

Bolt Cloud
Bolt IoT Bolt Cloud
Bolt IoT Android App
Bolt IoT Android App
Google Gmail

Story

Read more

Schematics

Circuit

Document

Code

email_conf

Python
gmail_user = 'Sender Email id'
gmail_pwd = 'Sender Email Password'
to = 'Receiver Email Id'
API_KEY = 'API Key'
DEVICE_ID = 'Device ID' 
FRAME_SIZE = 5
MUL_FACTOR = 6

email_send

Python
import smtplib
import email_conf,json,time
from boltiot import Bolt
import math, statistics


minimum_limit = 50 #the minimum threshold of light value 
maximum_limit = 100 #the maximum threshold of light value

mybolt = Bolt(email_conf.API_KEY, email_conf.DEVICE_ID)

def compute_bounds(history_data,frame_size,factor):
    if len(history_data)<frame_size :
        return None

    if len(history_data)>frame_size :
        del history_data[0:len(history_data)-frame_size]
    Mn=statistics.mean(history_data)
    Variance=0
    for data in history_data :
        Variance += math.pow((data-Mn),2)
    Zn = factor * math.sqrt(Variance / frame_size)
    High_bound = history_data[frame_size-1]+Zn
    Low_bound = history_data[frame_size-1]-Zn
    return [High_bound,Low_bound]

history_data=[]



while True:
	print("Reading The Sensor Value: ")
	response = mybolt.analogRead('A0')
	data = json.loads(response)
	print ("Sensor value is: " + str(data['value']))
	try:
		sensor_value = int(data['value'])
		
		#Anomaly Detection
		bound = compute_bounds(history_data,email_conf.FRAME_SIZE,email_conf.MUL_FACTOR)
		if not bound:
			required_data_count=email_conf.FRAME_SIZE-len(history_data)
			print("Not enough data to compute Z-score. Need ",required_data_count," more data points")
			history_data.append(int(data['value']))
			time.sleep(10)
			continue
			
		try:
			if sensor_value > bound[0] :
				print("bound[0] = ",bound[0])
				print ("Someone has opened the fridge door")
				print("This is the response ",response)
			elif sensor_value < bound[1]:
				print("bound[1] = ",bound[1])
				print ("Someone has opened the fridge door")
				print("This is the response ",response)
			history_data.append(sensor_value);
			
		except Exception as e:
			print ("Error",e)
			continue
		
		#Email send if temprature crossed threshold
		if sensor_value > maximum_limit or sensor_value < minimum_limit:
			print("Tempurature Crosses Threshold")
			smtpserver=smtplib.SMTP("smtp.gmail.com",587)
			smtpserver.ehlo()
			smtpserver.starttls()
			smtpserver.ehlo()
			smtpserver.login(email_conf.gmail_user,email_conf.gmail_pwd)
			header='To:'+email_conf.to+'\n'+'From '+email_conf.gmail_user+'\n'+'Subject:Alert\n'
			msg=header+'Tempreture is crossed Threshold'
			smtpserver.sendmail(email_conf.gmail_user,email_conf.to,msg)
			print('Email Send Successfully! :)')
			smtpserver.close()			
	except Exception as e: 
		print ("Error occured: Below are the details")
		print (e)
		time.sleep(10)

Credits

Omkar Kolate

Omkar Kolate

1 project • 0 followers
I am a final year Computer Engineering student.
Thanks to Bolt IoT.

Comments