Our Team
- E/20/262: Tharindu Lakshan e20262@eng.pdn.ac.lk
- E/20/266: Pradeep Nilupul e20266@eng.pdn.ac.lk
- E/20/449: Sandaru Wijewardhana e20449@eng.pdn.ac.lk
- E/20/288: Chalaka Perera e20288@eng.pdn.ac.lk
Watch Our Smart Lighting in Action
Solution Architecture & Components

Solution Architecture

Components & DataFlow

Components & DataFlow Explained
Our Solutions Architecture
- Light Intensity Control: Adjust lights individually or in groups, with automatic intensity changes.
- Prevent Unnecessary Deactivations: Advanced sensors detect micro movements to keep lights active.
- Smart Scheduling: Set custom on/off times and adjust intensity via the app.
- Modes: Introduces different lighting modes for user convenience.
- Global Accessibility: Control lights remotely via a mobile app.
- Automation & Convenience: Enhances user experience with intelligent automation.
Components & Data Flow
Room-Level Network (Sensors)
- Sensor Units (ESP32 + RD-03D sensor) send data to the Control Unit.
- Multiple sensor units per room for better coverage.
Control Unit (Lighting Control)
- Control Units (ESP32 + AC dimmer circuit) manage lights.
- Can turn on/off, dim lights, and receive sensor data.
- Replaces traditional switches.
Central Hub (Main Control System)
- Central Hub (ESP32/Raspberry Pi) manages all Control Units.
- Users can control lighting via this hub.
- Cloud-Connected: Executes schedules from the backend.
Mobile App Design

Welcome Screen

Create New Room Page

Home View

Schedule Screen

Schedule Screen

Sign Up Screen
Budget
Control Unit
- ESP32 = LKR 1200
- 4-channel AC dimmer circuit = LKR 1000
Central Hub
- ESP32 and other components = LKR 3000
Sensor Unit
- Humidity Sensor = LKR 500
- RD-03D mm wave radar sensor = LKR 1250
- VEML7700 Ambient light sensor = LKR 1200
Total cost per unit = LKR 8150