ESP8266 based IoT Panic Alarm for Old Age People using Blynk

In this tutorial we are going to setup a ESP8266 based IoT Panic Alarm for Old Age People using Blynk. We are going to see the design and the requirement for this project. This project is specially designed for old age people.

We can see many of elder people around us and some of them are not that technical while using gadgets. Subsequently, they need a gadget when they need someone’s help they can inform them. This IoT panic alarm will help them which works over WiFi. We are using ESP8266 WiFi module to simplify it and make it more portable.

Things Needed

1. ESP8266-01 WiFi Module
2. A Push Button.
3. A battery pack or a power source

Working

The working of this alarm is simple. The person has to just push the button seeking for attention. Immediately an alert will be sent in Blynk app and parallelly, an email will be sent to the concerned email address. It can be configured further to send an SMS to nearest hospital or call an emergency service.

As an example, You can configure the device for sending emails to very closed ones who can take care of the person. Aged people can call someone by pressing one button. To make it more compact and handy you can add a small battery pack. Using this project can provide lots of benefits.

Benefits of IoT Panic Alarm

• For sending an emergency alert to family or any authority
• Get immediate attention to get medicine
• For getting help if the person is alone

Connection Diagram

You have to make the connection as per the diagram below. It is easy and can be made by any beginner. This project can be mounted on a small box after successful testing along with a battery pack as a power source.

Setting Up Blynk Project

Open the Blynk App and tap on New Project

Enter a project name followed by select ESP8266 as device and tap on Create

An Auth Token will be sent to you registered email id.

Now lets add the widgets from the widget box. Select Notification and Email widgets.

Now tap on notification widget and configure as shown below.

In the same way tap on email settings and update the email address to which email will be sent.

Finally your Blynk setup will be complete and it will look some what as shown below.

Complete Code

You can download the complete code from the link below. After downloading just unzip it and open it using Arduino IDE. Select the correct board and upload it. We have a good article for uploading the code to ESP8266-01.

Suggested Reading:

• How to send sensor data to Thingspeak using Raspberry Pi
• ESP32-CAM based Email Notification System
• ESP32 based Gas Leakage Detection using Email Notification
• IoT based Motion Detection Alarm using ESP8266 and Blynk
• IoT based Fire Security Alarm System using NodeMCU
• NTP Digital Clock using ESP8266 and OLED Display
• NodeMCU based WiFi Network Scanner with OLED Display
• DHT11 Sensor with ESP-NOW and ESP32
• Raspberry Pi Flask Web Server with DHT11
• IoT Heart Rate Monitoring with ThingSpeak Platform
• ESP32 Web Server PWM based LED Control
• Temperature Monitoring with ESP-DASH Webserver

Preparing the code before uploading

Before you start uploading the code and use your device, you have to make some changes in the code to make it work properly.

Below are the library files which we need. You can install it by going to Sketch-> Include library-> Manage libraries.

Now Search for “ESP8266” and click on install.

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

Next you need to update the Blynk authentication token which you will receive on your registered email id.

char auth[] = "AuthToken";

Here you have to provide your WiFi details which is name of your wifi and password.

//Your WiFi credentials.
char ssid[] = "Your Network SSID";
char pass[] = "Network Password";

You can customize the alert and email messages here.

//EMAIL and PUSH Notification
Blynk.email("Serious Alert", "Please check the patient");
Blynk.notify("Serious Alert : Please check the patient");

Building and Testing

After connecting all the components on a breadboard and uploading the code, its time to power it on. Once you power it on it will start and try to connect with the WiFi connection.

Once you press the switch it will trigger a notification along with an email.

You will also receive an email along with the Blynk notification.

Summary

We have built a ESP8266 based IoT Panic Alarm. This can be also named as Health care alarm using blynk app. I hope you will enjoy building this project and also reading this article. Please share this article and help others to learn IoT.