malolan aravamuthan
Published © GPL3+

Temp_spy

This is an IOT based project. which sends an alert E-mail. it gives an alert message when there is a rise or fall in the temperature.

IntermediateFull instructions provided3 hours206
Temp_spy

Things used in this project

Hardware components

Temperature Sensor
Temperature Sensor
×1
Bolt WiFi Module
Bolt IoT Bolt WiFi Module
×1

Software apps and online services

Bolt Cloud
Bolt IoT Bolt Cloud

Hand tools and fabrication machines

Premium Female/Female Jumper Wires, 40 x 3" (75mm)
Premium Female/Female Jumper Wires, 40 x 3" (75mm)

Story

Read more

Custom parts and enclosures

hadware

hardware and components for tem_spy

Schematics

circuit connection

circuit connection for temp_spy

circuit connection for temp_spy

this is the hardware setup and connection

Code

code for temp_spy

Python
This is the source code for Temp_spy where it records the temperature and if there is a sudden rise or fall in the temperature it send an alert Email.
import main,json,time,math,statistics
from boltiot import Email,Bolt
def comp_bound(hdata,frame_size,factor):
    if len(hdata)<frame_size:
        return None

    if len(hdata)>frame_size:
        del hdata[0:len(hdata)-frame_size]
    mn = statistics.mean(hdata)
    variance = 0
    for data in hdata:
        variance += math.pow((data-mn),2)
 ## to compute z score
    zn = factor *math.sqrt(variance/frame_size)
## to compute bounds
    h_bound = hdata[frame_size-1]+zn
    l_bound = hdata[frame_size-1]-zn
    return [h_bound,l_bound]

mybolt = Bolt(main.api_key,main.device_id)
mailer = Email(main.mailgun_key,main.sandbox_url,main.sender_email,main.receiver_email)
hdata = []
max = 240
min = 190
while True:
    response = mybolt.analogRead('A0')
    data = json.loads(response)
    if data['success']!= 1:
        print("there was an error while retriving the data")
        print("this is the error:"+data['value'])
        time.sleep(10)
        continue

    print("this the value"+data['value'])
    sensor_value = 0
    try:
         sensor_value = int(data['value'])
    except e:
         print("the was an error while parsing the response:",e)
         continue
   
 bound = comp_bound(hdata,main.Frame_size,main.mul_fact)
    if not bound:
         required_data = main.Frame_size - len(hdata)
         print("need more data for computation",required_data,"more data")
         hdata.append(int(data['value']))
         time.sleep(10)
         continue
    try:
         if sensor_value > bound[0] or sensor_value > 240:
           print("the temperature increased suddenly. Sending an email")
           response = mailer.send_email("alert email","Some one opened the refrigerator")
           response_text = json.loads(response.text)
           print("this is the response" +str(response_text['message']))
         elif sensor_value < bound[0] and sensor_value < 190:
           print("the light level decreased suddenly.Sending an email")
           response = mailer.send_email("alert mail","Some one closed the refrigerator")
           response_text = json.loads(response.text)
           print("this is the response"+str(response_text['message']))
         hdata.append(sensor_value);
    except Exception as e:
        print("error")
    time.sleep(10)

Credits

malolan aravamuthan

malolan aravamuthan

1 project • 0 followers

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