ESP32 Google Assistant Based Home Automation
Control home appliances using voice commands through Google Assistant and ESP32 via cloud-based IoT integration.
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₹3171.00
Inclusive of all taxes
Components
7 items
Difficulty
Advanced
Build Time
2-4 hours
Project Details
How It Works
How It WorksThe system works through a cloud-based communication chain: 1) User gives a voice command to Google Assistant, 2) Google Assistant triggers an IFTTT applet, 3) IFTTT sends a webhook request to the Blynk cloud, 4) Blynk cloud forwards the command to the ESP32 via WiFi, 5) ESP32 processes the command and toggles the relay connected to GPIO 2, 6) Relay switches the AC appliance on/off. The ESP32 runs a Blynk client that continuously listens for commands from the cloud.
Prerequisites
Basic knowledge of Arduino programming, understanding of WiFi connectivity, familiarity with cloud services (IFTTT, Blynk), and experience with basic electronics and relay circuits. Users should also have a Google account and a compatible Google Assistant device.
What You'll Learn
What You'll LearnLearn to connect and configure Google Assistant for IoT control
Understand how to set up and use cloud webhooks for device communication
Design and implement voice command processing systems
Master ESP32 connectivity with cloud platforms like Blynk
Build integrated smart home systems with multiple components
Key Features
Control appliances using voice commands without physical interaction
Works from anywhere with internet connection
Integrates with existing smart home ecosystems
Can control multiple appliances using different virtual pins
Utilizes secure cloud communication protocols
What's Included in the Kit
| Component | Qty | Price |
|---|---|---|
 | 1 | ₹1682.00 |
 | 1 | ₹0.00 |
 | 1 | ₹0.00 |
 | 1 | ₹0.00 |
 | 1 | ₹171.00 |
 | 1 | ₹190.00 |
Google Assistant Enabled Device | 1 | ₹0.00 |
Operating Instructions
Pin Connections
Pin Connections| MCU Pin | Connected To | Purpose | Notes |
|---|---|---|---|
| GPIO 2 | Relay IN | Digital output to control relay state | Active LOW configuration in provided code |
| 5V | Relay VCC | Power supply for relay module | Ensure relay is 5V compatible |
| GND | Relay GND | Common ground connection | Essential for proper circuit operation |
Tools Required
Tools RequiredSafety Precautions
Electrical
- ⚠Always turn off mains before wiring AC appliances
- ⚠Use opto-isolated relays for safety
- ⚠Keep low voltage (ESP32) and high voltage (AC) circuits separate
- ⚠Enclose the circuit properly to prevent accidental contact
Frequently Asked Questions
Frequently Asked QuestionsQ:Is IFTTT mandatory?
Q:Does this require internet?
Q:Can multiple appliances be controlled?
Q:Can Alexa be used instead?
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