Project Description:

The Sunlight-Driven Smart Curtain is an IoT-enabled home automation project that automatically opens or closes curtains based on the intensity of sunlight detected throughout the day. This energy-efficient system uses a light sensor (LDR) to monitor sunlight levels and controls a motorized curtain accordingly, helping optimize room lighting, reduce energy usage, and enhance comfort without manual intervention.

Technologies Used:

• Backend: PHP / Java / Node.js (to process data and control logic)

• Frontend: HTML, CSS, Bootstrap, JavaScript (web/mobile dashboard)

• Database: MySQL / Firebase (logs curtain activity & sensor data)

• IoT Components:

  • Microcontroller: ESP32 / Arduino / Raspberry Pi

  • Light sensor: LDR (Light Dependent Resistor)

  • Servo / DC Motor with driver (for curtain movement)

  • Wi-Fi module / GSM (for remote access)

  • Optional: Manual override switch or mobile app control

Key Features:

1. Automatic Curtain Adjustment:

   • Curtain opens during bright daylight to maximize natural light.

   • Closes when it’s dark or light intensity is too high (like in summer).

2. Manual Override:

   • Web or mobile interface to manually open/close curtains on demand.

3. Dashboard Monitoring:

   • Live sunlight intensity readings.

   • Curtain status display (open/closed).

   • Historical logs of curtain actions.

4. Smart Scheduling:

   • User can schedule curtain operation at specific times of day.

   • Can include a "sleep mode" to keep curtains closed during rest hours.

5. Energy Efficiency:

   • Reduces the need for artificial lighting.

   • Helps maintain indoor temperature passively, reducing HVAC load.