Published April 8, 2020 © GPL3+

Security System Using PIR Sensor

A security system using PIR Sensor and Bot Module which detects motion and send mail and telegram message

IntermediateFull instructions provided661

Things used in this project

Hardware components

Bolt IoT Bolt WiFi Module

PIR Motion Sensor (generic)

Breadboard (generic)

Jumper wires (generic)

Micro-USB to USB Cable (Generic)

Software apps and online services

Bolt IoT Bolt Cloud

Story

DESCRIPTION

The project includes a PIR (Passive Infrared) Motion Sensor which is used for motion detectors. Security systems, alarms and home automation projects include it also. With building this sensor circuit, more advanced system can be made. When PIR sensor detects motion a mail and a Telegram message will be sent to the authority immediately. Mail is sent using smtp library in python.

HOW IT WORKS

Suppose it is placed in a room. The sensor output value is normally low. When someone enters in the room the sensor detects motion then sensor output value becomes high. Then mail will be sent to the authority.

ALL REQUIRED COMPONENTS

1. Bolt Wifi Module

Bolt module

2. PIR Sensor

PIR Sensor

BUILDING CIRCUIT

Step-1: Connect all three female pins to the PIR Motion Sensor.

step-2: Connect the positive (+) pin of the sensor to 5 volt of the Bolt Module

step-3: Connect the ground (-) pin of the sensor to GND pin of the Bolt Module

step-4: Connect the output pin of the sensor to the digital 0 (D0) on the Bolt Module

SOFTWARE

After making the circuit ready two python files are needed to run the project successfully. Here I used linux in virtual box. You can run python files in Digital Ocean also.

First install boltiot module using the following command. Run this in terminal.

sudo pip install boltiot

Then create a python file. I named it conf.py. The code is given below. Replace the values with your credentials

bolt_api_key = "XXXX"            #This is your Bolt Cloud API Key
device_id = "XXXX"               #This is the device ID of BOLT module
telegram_chat_id = "@XXXX"       #This is the channel ID of the telegram channel. 
telegram_bot_id = "botXXXX"      #This is the bot ID of the created bot.

Normally PIR output value is 0. When the PIR sensor detects motion i.e. detects some one the output value of PIR sensor will be high i.e. 1. Now when the sensor output become 1 using the python code mail will be sent using smtp library and also Telegram message will be sent.

The python code for the above logic is given in the code section named alert.py

In the bolt cloud create a new product. Here I used digiital 0 pin. I wrote a small html code in the code section within the configuration section which is given below.

<!DOCTYPE html>
<html>
<head>
    <title> MOTION DETECTOR </title>
</head>
<body>
    <h> This is a project to detect someone in a security zone </h>
    <h> When someone gets detected an alert mail will be sent </h>
</body>
</html>

Now connect the product with the bolt device.

Receiving Mail and Message

When someone is detected mail and telegram message will be sent. Here are samples which I received in mail and Telegram.

1 / 2

Code

alert.py

import requests                 # for making HTTP requests
import json                     # library for handling JSON data
import time                     # module for sleep operation
import smtplib
from boltiot import Bolt        # importing Bolt from boltiot module
import conf                     # config file

mybolt = Bolt(conf.bolt_api_key, conf.device_id)

def get_sensor_value_from_pin(pin):
    try:
        response = mybolt.digitalRead(pin)
        data = json.loads(response)
        sensor_value = int(data["value"])
        if sensor_value == 1:
            return sensor_value
        return 0
    except Exception as e:
        print("Something went wrong when returning the sensor value")
        print(e)
        return -999


def send_telegram_message(message):
    """Sends message via Telegram"""
    url = "https://api.telegram.org/" + conf.telegram_bot_id + "/sendMessage"
    data = {
        "chat_id": conf.telegram_chat_id,
        "text": message
    }
    try:
        response = requests.request(
            "POST",
            url,
            params=data
        )
        print("This is the Telegram URL")
        print(url)
        print("This is the Telegram response")
        print(response.text)
        telegram_data = json.loads(response.text)
        return telegram_data["ok"]
    except Exception as e:
        print("An error occurred in sending the alert message via Telegram")
        print(e)
        return False


def send_mail(email, password, message):
    print("MESSAGE:  " + message)
    server = smtplib.SMTP("smtp.gmail.com", 587)
    server.starttls()
    server.login(email, password)
    print("Login Successful")
    server.sendmail(email, "abc@xyz.com", message) 		# replace abc@xyz.com with                                     the mail id where you want to send the mail.
    print("SENT")
    server.quit()
    
   
while True:
    
    sensor_value = get_sensor_value_from_pin("0")    
    print("The current sensor value is:", sensor_value)
    
    if sensor_value == -999:
        print("Something Went Wrong...")
        time.sleep(10)
        continue
    
        
    if sensor_value == 1:
	print("Sensor value has exceeded threshold")
	message = "Alert! Sensor Detected Someone "
	telegram_status = send_telegram_message(message)
	print("This is the Telegram status:", telegram_status)
		    
	email= "xxxxxxxxx"  		# Enter your mail id
	password= "xxxxxxxxx" 		# Enter password of your mail id
	send_mail(email, password, message)
        -
    time.sleep(10)

Credits

Rounik Biswas

1 project • 1 follower

Security System Using PIR Sensor

Things used in this project

Hardware components

Software apps and online services

Story

DESCRIPTION

HOW IT WORKS

ALL REQUIRED COMPONENTS

BUILDING CIRCUIT

SOFTWARE

Receiving Mail and Message

Schematics

Circuit_Diagram

Circuit_diagram

Code

alert.py

Credits

Rounik Biswas

Comments

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Security System Using PIR Sensor

Security System Using PIR Sensor

Things used in this project

Hardware components

Software apps and online services

Story

DESCRIPTION

HOW IT WORKS

ALL REQUIRED COMPONENTS

BUILDING CIRCUIT

SOFTWARE

Receiving Mail and Message

Schematics

Circuit_Diagram

Circuit_diagram

Code

alert.py

Credits

Rounik Biswas

Comments

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