The prototype is for a proposed facade opening system is an intelligent, sensor-driven architectural solution designed to optimize indoor comfort and energy efficiency. Using real-time environmental data, this system automatically adjusts the position of an external panel to regulate natural light, temperature, and humidity. It operates autonomously through the integration of sensors and actuators, making it a sustainable and user-friendly choice for modern architecture.

How It Works:

Analyzing these three parameters:

  • Light Regulation:
    • Indoor and Outdoor Light Sensors: The system measures indoor light levels and outdoor illumination to decide when to open or close the facade. This ensures optimal lighting indoors, reducing the need for artificial light during the day.
  • Temperature Control:
    • A temperature sensor prevents the panel from opening when the outdoor temperature is either too low (to avoid heat loss) or too high (to avoid excessive heat gain).
    • This reduces reliance on Heating, Ventilation, and Air Conditioning, improving energy efficiency.
  • Humidity Management:
    • A humidity sensor detects high external humidity levels. If detected, a red LED indicator alerts occupants to potential moisture issues, encouraging them to keep the panel closed.

Conditions for the System:

Components and Pins:

  1. Arduino UNO R3
  2. USB Cable
  3. Breadboard
  4. Wires
  5. 2 x Photoresistor (Photocell)
  6. 2 x 10K Resistors
  7. DHT11 (External Temperature and Humidity Sensor)
  8. Servo Motor sg90
  9. Red LED
  10. 1 x 330 Resistor

Schematic:

Code:

Prototype:

Simulations

Simulation 01: Inside sensor without light minimal light and outside light is sufficient -> PANEL OPEN

Simulation 02: Introducing a hairdryer, even if the light condition is ok to the panel to be open -> temperature > 35°C -> PANEL CLOSE

Simulation 03: Introducing wet cotton close to the sensor -> Humidity >80% -> Red LED ON

Future development:

This  prototype lays the foundation for future developments in real building facades, enabling fully automated, energy-efficient systems that integrate advanced climate control, smart material technologies, and connectivity to create sustainable, responsive, and adaptive architectural designs.