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ESP32

ESP32BeginnerAdvancedesp32smart-homehome-automation

ESP32 Smart Home Automation System

Build an ESP32-based smart home automation system to control home appliances wirelessly using Wi-Fi and a web interface.

₹4411.00

Inclusive of all taxes

Development fee₹1769.00

Components (from library)₹2642.00

Total per unit (incl. GST)₹4411.00

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Quantity:

Total: ₹4411.00

₹4411.00

Inclusive of all taxes

Components

7 items

Difficulty

Advanced

Build Time

2-4 hours

Project Details

The ESP32 Smart Home Automation System allows users to control household appliances such as lights, fans, and sockets remotely using a web browser or mobile phone. The ESP32 connects to a Wi-Fi network and hosts a web-based control dashboard. Users can turn appliances ON/OFF in real time without any third-party cloud service. This project demonstrates smart appliance control, Wi-Fi based automation, web dashboard hosting, and real-world IoT architecture. It closely resembles commercial smart home systems and is widely used in final-year projects and startup prototypes.

How It Works

The ESP32 connects to a Wi-Fi network and hosts a web server on port 80. When a user accesses the ESP32's IP address from a web browser, they see a simple HTML dashboard with buttons for controlling appliances. Clicking a button sends an HTTP request to the ESP32 (e.g., /R1ON or /R1OFF). The ESP32 processes these requests and toggles the corresponding relay pins (GPIO 2, 4, 5, 18) to control the connected AC appliances. The relay modules are active LOW, meaning a LOW signal turns them ON and a HIGH signal turns them OFF.

Prerequisites

Basic knowledge of electronics and microcontrollers, familiarity with Arduino IDE, understanding of Wi-Fi networks, and experience with basic programming concepts. Safety awareness when working with AC mains electricity is essential.

What You'll Learn

Smart home architecture

Understanding of IoT-based home automation systems

ESP32 Wi-Fi communication

Learning to connect ESP32 to Wi-Fi networks and host web servers

Relay-based appliance control

Controlling AC appliances using relay modules

Embedded web servers

Creating and managing web servers on microcontrollers

Practical IoT system design

Designing and implementing real-world IoT solutions

Key Features

✓

Real-time appliance control

Instant ON/OFF control of appliances via web interface

✓

Web-based dashboard

User-friendly interface accessible from any device with a browser

✓

No cloud dependency

Operates on local Wi-Fi without requiring internet or third-party services

✓

Scalable architecture

Can be expanded with more relays or additional ESP32 nodes

✓

Mobile-friendly interface

Responsive design works on smartphones and tablets

What's Included in the Kit

ESP32 Smart Home Automation System - All components

Component	Part ID	Qty	Price	Description
ESP32 Development Board	-	1	₹1682.00	-
Relay Module (4-Channel)	-	1	₹0.00	-
AC Appliances (Bulb/Fan)	-	1	₹599.00	-
Breadboard / PCB	-	1	₹0.00	-
Jumper Wires	-	1	₹171.00	-
USB Cable	-	1	₹190.00	-
Wi-Fi Router	-	1	₹0.00	-

Pin Connections

MCU Pin	Connected To	Purpose	Notes
GPIO 2	Relay 1	Control signal for Relay 1	Active LOW
GPIO 4	Relay 2	Control signal for Relay 2	Active LOW
GPIO 5	Relay 3	Control signal for Relay 3	Active LOW
GPIO 18	Relay 4	Control signal for Relay 4	Active LOW
GND	Relay GND	Common ground connection	-
5V	Relay VCC	Power supply for relay module	-

Tools Required

Laptop / PC

USB Cable

Screwdrivers

MultimeterOptional

Insulated glovesOptional

Safety Precautions

Electrical

⚠Switch OFF main power before wiring
⚠Use proper insulation
⚠Do not touch live AC wires
⚠Keep ESP32 isolated from AC side
⚠Use relay modules with opto-isolation

Frequently Asked Questions

Q:Can this work without internet?

A: Yes, only local Wi-Fi is required. The system operates on your home network without needing internet access.

Q:Can I control from outside home?

A: Yes, using port forwarding or cloud integration. You can set up remote access through your router settings or add cloud services.

Q:Can voice control be added?

A: Yes, via Google Assistant or Alexa. You can integrate with voice assistants for hands-free control.

Q:Is this system scalable?

A: Yes, you can add more relays or ESP32 nodes to control additional appliances or create multiple control points.

#esp32#smart-home#home-automation#iot#wifi#web-server#embedded-systems

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