Chetashri Mahajan
Created July 2, 2020

Fire_Alert_System

The device which alert us when fire is detected and sends a alert message.

BeginnerFull instructions provided1.5 hours8
Fire_Alert_System

Things used in this project

Hardware components

Bolt WiFi Module
Bolt IoT Bolt WiFi Module
×1
Temperature Sensor
Temperature Sensor
×1
Buzzer
Buzzer
×1
5 mm LED: Red
5 mm LED: Red
×1
5 mm LED: Green
5 mm LED: Green
×1
Male/Female Jumper Wires
Male/Female Jumper Wires
×2
Male/Male Jumper Wires
×7
Breadboard (generic)
Breadboard (generic)
×1
Resistor 10k ohm
Resistor 10k ohm
×1
USB-A to Mini-USB Cable
USB-A to Mini-USB Cable
×1

Software apps and online services

Bolt IoT Android App
Bolt IoT Android App
Bolt Cloud
Bolt IoT Bolt Cloud
SMS Messaging API
Twilio SMS Messaging API
Ubuntu VMware

Story

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Schematics

fire alert system

Code

fire_alert_system.py

Python
import conf                                 #import credential file
from boltiot import Sms, Bolt
import json
import time

mybolt = Bolt(conf.API_KEY, conf.DEVICE_ID) #to connect to bolt device.

sms = Sms(conf.SID, conf.AUTH_TOKEN, conf.TO_NUMBER, conf.FROM_NUMBER)  # to send SMS using this info

green_led=mybolt.digitalWrite('0','HIGH')  #To ON green LED, as no fire.

#loop to fetch and detect whether fire or not after every 10 secs 

while True: 
  print ("Reading sensor value")
  response = mybolt.analogRead('A0')   #Get sensor value from bolt device
  data = json.loads(response)
  #loop to compare the temperature if matching with fire's
  try: 
    sensor_value=int(data['value'])
    temperature=(100*sensor_value)/1024             #converting raw temperature      reading to degree Celsius.
    print("Sensor value is: " + str(temperature))
    if temperature>conf.THRESHOLD_VALUE: 
      green_led=mybolt.digitalWrite('0','LOW')   #OFF green LED
      buzzer=mybolt.digitalWrite('2','HIGH')     #ON buzzer
      red_led=mybolt.digitalWrite('1','HIGH')    #ON red LED
      print("FIRE! Making request to send SMS")
      response=sms.send_sms("FIRE!FIRE! GET OUT OF YOUR HOUSE.")       #sending sms
      print("status of sms  is:"str(response.status))
    
    else:
      green_led=mybolt.digitalWrite('0','HIGH')      #ON green LED
      red_led=mybolt.digitalWrite('1','LOW')         #OFF red LED
      buzzer=mybolt.digitalWrite('2','LOW')          #OFF buzzer
  except Expection as e:
    print("error accured:below are the details")
    print(e)
    time.sleep(10)     # time delay of 10 secs
                

conf.py

Python
Replace all credentials with yours.
SID = 'ACecXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'#You can find SID in your Twilio Dashboard 
AUTH_TOKEN ='a528XXXXXXXXXXXXXXXXXXXXXXXXXXXX' #You can find  on your Twilio Dashboard        
FROM_NUMBER ='+120XXXXXXX' #This is the no. generated by Twilio. You can find this on your Twilio Dashboard
TO_NUMBER ='+91810XXXXXXX' #This is your number. Make sure you are adding +91 in beginning
API_KEY ='bf0eaXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX' #This is your Bolt Cloud accout API key       
DEVICE_ID ='BOLTXXXXXXX' #This is the ID of your Bolt device 
THRESHOLD_VALUE=40

Credits

Chetashri Mahajan

Chetashri Mahajan

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