Smart Air Freshner System
01.Smart Air Freshener System Using ESP32 & BLE
This project focused on developing a Smart Perfume Spray System that allows users to control fragrance delivery with precision and ease. Built around the ESP32 microcontroller, the system utilizes Bluetooth Low Energy (BLE) to connect wirelessly with a dedicated Android app, enabling users to personalize their air-freshening experience based on time, day, and intensity preferences.
02. The Challenges & Solutions
Controller: ESP32 for BLE communication and actuator control
Connectivity: BLE integration for seamless mobile app pairing
Mobile App: Android application developed for spray control and scheduling
Actuator: Precision-controlled motor for spray dispensing
User Interface: Schedule sprays by time, day of the week, and intensity level
Power Supply: Rechargeable battery or USB power for continuous operation
Enclosure: Compact design with an aesthetic casing for home/office use
03. Story
Personalizing Everyday Ambience
The idea originated from the need to make air freshening more intelligent and context-aware. Traditional air fresheners spray at fixed intervals, regardless of user preferences or usage patterns. Our goal was to give users complete control—from how strong the scent is, to when and how often it’s released.
Hardware Integration & Spray Control
We used the ESP32 to manage BLE communication and trigger the spray mechanism through a precision motor. The hardware was compactly designed to fit inside a consumer-grade enclosure with minimal power consumption and quiet operation.
Custom App for Scheduling & Control
The Android mobile app allows users to:
Set specific spray times and days
Adjust intensity levels
Monitor battery status (optional add-on)
This gave users the ability to tailor their environment exactly how they wanted—whether it’s light fragrance in the morning or stronger scent bursts before guests arrive.
Scalability & Smart Home Integration
The system is designed to scale into multi-room deployments and can be enhanced for future smart home integrations with assistants like Alexa or Google Home.
