A smart, low-cost IoT-based home automation system that allows users to control appliances remotely via Wi-Fi using a smartphone app and the ESP8266 microcontroller.

• Remotely control home appliances (e.g., lights, fans)
• Real-time status monitoring via Blynk app
• Wi-Fi-based communication using ESP8266
• Secure and low-power design
• Easy to set up and modify for additional devices

• ESP8266 NodeMCU
• Relay Module (1/2/4 Channel)
• AC Appliances (Bulb, Fan, etc.)
• Blynk App (for Android/iOS)
• Jumper wires, breadboard, power supply

(Upload a circuit diagram image here if available)
You can connect each relay IN pin to a digital GPIO pin on the ESP8266. The relay outputs are wired to control the AC appliances.

• Arduino IDE
• Blynk IoT Platform
• Embedded C/C++
• ESP8266WiFi & Blynk libraries

1. Install Arduino IDE
   Download from https://www.arduino.cc/en/software

2. Add ESP8266 Board
   Go to Preferences → Add the following URL to "Additional Board Manager URLs":

http://arduino.esp8266.com/stable/package_esp8266com_index.json

3. Install Required Libraries

• Blynk
• ESP8266WiFi

4. Upload the Code

• Open home_automation.ino
• Replace BLYNK_AUTH_TOKEN, WIFI_SSID, and WIFI_PASSWORD with your credentials
• Select the correct board (NodeMCU 1.0) and port
• Upload to ESP8266

• Install Blynk app from Play Store / App Store
• Create a new project and add buttons linked to digital pins (e.g., D1, D2)
• Copy the Auth Token and paste it into the code
• Start the project and control appliances with one tap

This project is licensed under the MIT License.

Created with ❤️ by Saif Ahmed Nandyal