Introduction
NOTE: PLEASE DOWNLOAD THE PDF TO KNOW COMPLETE PROCEDURE OF THE PROJECT
Working

Published April 22, 2020

Blind's Companion

To help the visually impaired with Intruder Detector and alert messaging system with the help of Bolt-IoT, Arduino & Ultrasonic sensor

IntermediateFull instructions provided1,856

Things used in this project

Hardware components

Bolt IoT Bolt WiFi Module

Arduino UNO

SparkFun Ultrasonic Sensor - HC-SR04

LED (generic)

Resistor 220 ohm

Breadboard (generic)

Jumper wires (generic)

Software apps and online services

Arduino IDE

Bolt IoT Bolt Cloud

Twilio SMS Messaging API

MailGun

Integromat

Twitter

Story

Introduction:

In this advanced era, World is running in its maximum speed, we must change our pace to move with flow. To move with the flow, we must be working 24 hours, right? Nope not at all. “Smart working trounces hard working”. Thus, make your moves smarter and smarter such that you control the world’s speed.

If you think, this is in the case of capable person, what about the gifted ones? Why not! Even they can conquer the world, with the help of cutting edges of technology.

Thus, I here present you, the “BLIND’s COMPANION”. This is a Bolt-IoT project connected with Arduino and Ultra-sonic sensor.

I show my gratitude towards Bolt-IoT for providing such knowledge and platform to share my project.

NOTE: PLEASE DOWNLOAD THE PDF TO KNOW COMPLETE PROCEDURE OF THE PROJECT.

LINK: https://drive.google.com/file/d/11bzageBFU5r2GUH9udB-l_aZxelwOxQn/view?usp=sharing

Working:

Ø To Know the working of the project more practically, let us see two scenarios regarding to our project.

Ø Scenario 1:

· Mr. Martin, who is visually impaired, employs this project in his home. He has completed the setup by entering his neighbour’s phone number.

· Every day, he turns this on when he goes to sleep.

· One day, the same routine happens and his in fine sleep. That night some intruder tries to rob his house.

· And as the sensor detects people who cross the threshold line, it started sending message to the neighbour’s phone number & Telegram, mails were sent to his known circle, and his tweets were recognised by Cops and Mr. Martin was saved from this incident.

Ø Scenario 2:

· Mr. Jacob, who is a software engineer, implements the same setup in his home. Now he gives his own number and finishes the setup.

· When same incident takes place on his house, he is notified with all messages and mails.

· He is also saved from this kind of burglary.

Ø Thus, for both categories of people, this serves at the right time.

Ø As the Ultra-sonic Sensor detects the change in the value, when some one enters.

Ø It denotes Arduino as the threshold levels are crossed.

Ø And the link between Arduino and Boltiot helps in sending messages.

Ø Thus, Victims are saved from intruders. And safety is ensured.

Ø The alerts are sent to Social media thus it gets easier for cops to save the victims.

Hardware setup

Email Notification

Twitter Notification

Message Notification

Telegram channel notification

The complete procedure pdf is attached below.

Schematics

Code

"""Configurations"""  
API_KEY = "This is your Bolt Cloud account API key" This is your Bolt Cloud API Key  
DEVICE_ID = "This is the ID of your Bolt device"# This is the device ID  
TELEGRAM_CHAT_ID = "@XXXX" #This is the channel ID of the created Telegram channel.  
TELEGRAM_BOT_ID = "botXXXXX"    # This is the bot ID of the created Telegram Bot.  
SID = "You can find SID in your Twilio Dashboard"
AUTH_TOKEN = "You can find on your Twilio Dashboard" 
FROM_NUMBER = "This is the no. generated by Twilio. You can find this on your Twilio Dashboard"
TO_NUMBER = "This is your number. Make sure you are adding +91 in beginning"
MAILGUN_API_KEY = "This is the private API key which you can find on your MailGun Dashboard" 
SANDBOX_URL = "You can find this on your MailGun Dashboard" 
SENDER_EMAIL = "This would be test@your SANDBOX_URL"
RECIPIENT_EMAIL = "Enter your Email ID Here"

#include <Ultrasonic.h>  
Ultrasonic ultrasonic(5, 6);  
int LED = 2;  
int threshold = 100;  
void setup() {  
 // put your setup code here, to run once:  
 Serial.begin(9600);  
 pinMode(LED, OUTPUT);  
}  
void loop() {  
 // put your main code here, to run repeatedly:  
 int distance = ultrasonic.distanceRead();  
 if(distance< threshold)  
 {  
 digitalWrite(LED, HIGH);  
 Serial.println("HIGH");  
 delay(10000);  
 }  
 else{  
 digitalWrite(LED,LOW);  
 }  
 delay(1000);  
}

import requests, json, time, conf
from boltiot import Bolt, Sms, Email  
 
mybolt = Bolt(conf.API_KEY, conf. DEVICE_ID) #Create object to fetch data  
sms = Sms(conf.SID, conf.AUTH_TOKEN, conf.TO_NUMBER, conf.FROM_NUMBER)
mailer = Email(conf.MAILGUN_API_KEY, conf.SANDBOX_URL, conf.SENDER_EMAIL, conf.RECIPIENT_EMAIL)
response = mybolt.serialRead('10')  
print (response)  

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  
          }  
def trigger_integromat_webhook():
       URL = "https://www.integromat.com/" # REPLACE WITH CORRECT URL
       response = requests.request("GET", URL)
       print(response.text)

   try:  
       response = requests.request("POST", url, params=data  )  
       print("This is the Telegram response")  
       print(response.text)  
       telegram_data = json.loads(response.text)  
       return telegram_data["ok"]  
    except Exception as e:  
       print("Error occured: Below are the details")
       print(e)  
       return False  
while True:  
   response = mybolt.serialRead('10')  #Fetching the value from Arduino  
   data = json.loads(response)  
   status_value = data['value'].rstrip()  
   if str(status_value) == 'HIGH':  
       trigger_integromat_webhook()
       print ("Status is", status_value)  
       message = "Some intruder has entered the room"  
       telegram_status = send_telegram_message(message)  
       print("Making request to Twilio to send a SMS")
       response = sms.send_sms("Some intruder has entered the room " +str(sensor_value))
       print("Response received from Twilio is: " + str(response))
       print("Status of SMS at Twilio is :" + str(response.status))
       print("Making request to MailGun to send an email")
       response = mailer.send_email("Alert", " Someone intruder has entered the room" +str(sensor_value))
       response_text = json.loads(response.text)
       print("Response received from Mailgun is: " + str(response_text['message']))

   else:  
        print ("Status is LOW!",status_value)  
   time.sleep(10)

Credits

Kumaresh PV

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