Story
Demonstration
Introduction
Telegram Setup
Google assistant Setup
Circuit Connections
Working
Ubuntu OS
Conclusion

Published June 7, 2021

Bolt powered Burglar Alert System

This is a Bolt wi-fi module powered Burglar alert system with Buzzer and Messaging Alert system

IntermediateFull instructions provided3 hours148

Things used in this project

Hardware components

Bolt IoT Bolt WiFi Module

LDR, 5 Mohm

Resistor 330 ohm

Buzzer

SparkFun Solder-able Breadboard - Mini

LED (generic)

Jumper wires (generic)

Software apps and online services

Story

You must have seen in movies, like as soon as someone try to steal any precious ( jewelry or other valuables) item from it's place, alarm start's ringing in the whole building and a direct notification will be sent to all the security staff of the building automatically

Demonstration

Introduction

When the burglar lift the item from it's actual place, Light starts falling perpendicularly on the LDR and LDR reading cross the threshold and initiate the buzzer and telegram message

You can On and Off this alarm by voice controlled Goggle assistant service.

Telegram Setup

Download Telegram messaging app on your mobile phone or desktop and create your account.
In the menu bar tap on "New Channel " and add a Suitable name(ex Bruglar alert) to it (make it public channel)
Now go to search bar and type 'Botfather', there will be a channel on top with blue tick next to it's name.

click on that channel and type : /start

Click on New Bot then and type a unique name for your bot

This will give you your API token. (Please keep it safe)

Google assistant Setup

To make our project more cooler, we will add voice-controlled LED.

Go IFTTT site and create a account using your Gmail id.

IFTTT

Then, click on create page and then click on add for "IF THIS" option and choose service- Google Assistant
Click on the Simple phrase and type what you want to say as a voice command and response command and click on trigger.

Now click on +that, now Select webhooks.

enter URL as- ( https://cloud.boltiot.com/remote/Your BOLT API key /digitalWrite?pin=0&state=HIGH&deviceName=BOLTXXXXXX ) Method will be - GET
Content type will be json
Now click on create action and then Finish

Circuit Connections

Consider vertical holes as 1 to 17 and horizontal row as A to E (on 1 half of breadboard)

Now connect as following

7C to pin 0 of Bolt
(A0 of Bolt to 14A)
GND pin Bolt to 10C
3v3 pin of Bolt to (17A)
LDR to 17B and 14B
Resistor -14D and 10D
LED to 7E and 10E
Buzzer to pin 1 of Bolt and 10A

Working

LDR resistance is inversely proportional to intensity of light. As light falls on the LDR resistance decreases or vice versa

Since the object is between LDR and Light, LDR is somehow receiving less intensity light than the threshold.
As we pick up the object, light will fall prependicularly to the LDR and LDR reading will cross the threshold value
This will initiate the buzzer for next 15 seconds
And a Alert messsage will be sent to your telegram app

Ubuntu OS

Now go to your Ubuntu OS and Create a configuration file by typing -" sudo nano config.py" and paste the code (as attached below) inside the file and save it by ctrl + X

Now create a another file name burglar_alert by typing" sudo nano burglar_alert.py "and paste the whole code inside that file and save it by ctrl+X.

After connecting hardware Setup completely type : "sudo python3 burglar_alarm.py " and press enter to run the code.

Turn ON the LED using Google assistant . Now our Burglar alert system is fully functioning .

Conclusion

Thus, a successfull voice controlled burglar alarm system has been created.I hope you will like my first Iot project

import config                 # config.py has important imformation
import json                   # library for handling JSON data
import time                   # module for sleep operation
import requests               # for making HTTP requests
from boltiot import Bolt      #importing Bolt from boltiot module

myBolt = Bolt(config.API_KEY, config.DEVICE_ID)

def get_LDR_reading():
    pin = "A0"
    try:
        response = myBolt.analogRead(pin)         # Reading data from LDR
        data = json.loads(response)               # Extracting the data from response
        
        if(data["success"] !=1):                  # Failure in Reading
            print("Request to Read Unsuccessful")
            print("\nResponse got --> ",data)
            return -1                             # -1 means failure
        sensor_value = int(data["value"])         # Getting the LDR value
        return sensor_value
    except Exception as e:
        print("Something went wrong while returning value")
        print(e)
        return -1

def send_telegram_message(message):
    url = "https://api.telegram.org/" + config.telegram_bot_id + "/sendMessage"
    data = {"chat_id": config.telegram_chat_id, "text": message}
    
    try:
        response = requests.request ("POST", url, params=data)
        telegram_data = json.loads(response.text)
        return telegram_data["ok"]
    except Exception as e:
        print("Error occured while sending Telegram Message")
        print(e)
        return False

while(True):
    sensor_value = get_LDR_reading()
    print("Reading LDR Sensor Value:: --> ", sensor_value)
    
    if sensor_value == -1 :
        print("\nCould not read. Skipping\n")
        time.sleep(10)
        continue
        
    if sensor_value > 500 :                 # 500 is the threshold value
        print("\nIntruder!!!!!!!\n")
        print("Buzzer Activated\n")
        
        myBolt.digitalWrite(1, "HIGH")      # Activating Buzzer
        message = "Alert! Burglar has entered the premises. Contact the police !"
        telegram_status = send_telegram_message(message)  # Sending Message via Telegram
        print(telegram_staus)
        time.sleep(15)    # Buzzer buzzes for 15 seconds
        myBolt.digitalWrite('1',"LOW")  # Buzzer deactivated
        
        print("Buzzer Deactivated")
        
    else:
        print("\nNo Burglar Yet")
        time.sleep(10)

Credits

Rishabh Anand

1 project • 0 followers

Bolt powered Burglar Alert System