This document introduces a smart switch project using an ESP32 microcontroller and 4-channel relay controlled through a Blynk mobile app. It provides step-by-step instructions on selecting components, setting up the circuit, programming the ESP32, configuring the Blynk app, and testing the smart switch. Key features of smart switches are described such as remote control, scheduling, voice control, remote access, and home automation. Future trends discussed include voice/AI integration, edge computing, interoperability standards, energy harvesting, and enhanced security.

1. SMART SWITCH
By:
Lakshya Kumar (B-Tech ECE)
Satyam Kumar R (B-Tech ECE)
Presentation on -

2. • Introduction
• Getting Started with Smart
Switches
• Key Features of Smart Switches
• Access and Monitoring via
Mobile Apps
• Future Trends
• Conclusion
Table of Contents:

3. This project introduces a Smart Switch, a versatile home
automation solution utilizing the ESP32 microcontroller,
a 4-channel relay, and the powerful Blynk software.
By combining hardware and software, this project allows
users to remotely control and automate various
electrical appliances within their homes through a user-
friendly mobile application.
Introduction

4. • Selecting Your Components:
We have used a ESP32 module,
4-channel relay, connecting wires,
and a reliable power supply.
2. Setting Up the Circuit:
Follow a comprehensive wiring diagram
to connect the ESP32 module to the 4-channel relay,
ensuring proper power supply and pin configurations.
Integrating smart switches into your home is a straightforward and transformative process that
enhances convenience and efficiency. This guide will walk you through the essential steps to get
started with smart switches
Getting Started with smart switches
ESP32
MICROCONTROLLER
4-Channel
Relay Module

5. 3. Programming the ESP32:
Install the Arduino IDE and ESP32 board support, then write the code for relay
control, incorporating functions for Blynk integration.
4. Configuring Blynk App:
Create a Blynk account, set up a new project, and configure virtual pins for
relay control. Download and install the Blynk app on your mobile device.
5. Testing Your Smart Switch :
Upload the code to the ESP32, monitor the serial output for any issues,
and relay functionality through the Blynk app. Ensure a seamless connection
between your hardware and the Blynk platform.

6. Key Features:
• Remote Control: Turn lights and devices on/off from anywhere.
• Scheduling and Timers: Automate operations with preset schedules.
• Voice Integration: Control via Alexa, Google Assistant, and more.
• Remote Access: Monitor and control devices remotely.
• Smart Home Integration: Connect with other devices for a cohesive
ecosystem.
• Automation: Set scenarios for energy efficiency, security, and custom
routines.

7. Access and Monitoring through Blynk App :
• Remote Access: Control switches from
anywhere.
• Real-time Monitoring: Check device status
instantly.
• Intuitive Interface: User-friendly app for easy
control.
• Instant Notifications: Receive timely updates.
• Secure Connection: Ensures safe remote
operations.

8. • Voice & AI Integration: More intuitive interactions.
• Edge Computing: On-device processing for efficiency.
• Interoperability Standards: Seamless integration with
various platforms.
• Energy Harvesting: Sustainable and self-powered solutions.
• Enhanced Security: Robust protocols for data protection.
Future Trends:

9. Conclusion:
Our journey into smart switch automation not only simplifies daily
tasks but also sets the stage for a sustainable and intelligent living
environment. Whether you're a DIY enthusiast or a homeowner
seeking modern solutions, the world of smart switches continues to
unfold with exciting possibilities, making homes smarter, more
efficient, and ultimately, more enjoyable to inhabit.
As we embrace current technological trends, it's evident that the
future holds even more promising developments.
Thank You