Project Overview

The Motion-Based Auto Door Opener is an automated entry system designed to enhance convenience and accessibility in modern buildings. Utilizing a Passive Infrared (PIR) motion sensor, the system detects the infrared radiation emitted by human movement as someone approaches the entrance. This signal is processed by an Arduino microcontroller, which then triggers a servo motor to physically actuate the door mechanism. This project serves as a practical demonstration of automation in smart home design, focusing on hands-free operation and energy conservation by ensuring the door only opens when necessary.

Key Advantages

Hands-Free Convenience: Allows for effortless entry, especially when carrying items.

Improved Hygiene: Reduces the need to touch door handles, minimizing the spread of germs.

Enhanced Accessibility: Provides significant assistance for the elderly and people with physical disabilities.

Energy Efficiency: Helps maintain indoor climate by ensuring doors are only open for a limited duration.

Security Integration: Can be easily paired with alarm systems or counters to monitor foot traffic.

Materials Used

Arduino Nano (or Uno)

PIR Motion Sensor

Servo Motor

SMPS Power Supply Module

Connecting Wires

Chassis/Model Structure

Push Button Switch

Future Work

Future developments for this system could involve the integration of ultrasonic sensors to prevent the door from closing if an obstruction is detected in the doorway, increasing safety. Additionally, the system could be upgraded with facial recognition via an ESP32-CAM module to provide secure, authorized-only access. Incorporating IoT connectivity would also allow facility managers to track entrance logs remotely and adjust the door's opening and closing speeds through a mobile application, making it more adaptable to high-traffic commercial environments.