Birdie – Interactive Air Quality Monitoring & Response System
01. Devoforge Expertise
This project demonstrates expertise in embedded systems, environmental sensing, actuator control, and interactive product design. It combines ESP32-based control, sensor integration, power management, and 3D mechanical design to create a functional and visually engaging IoT product.
02. Client Requirements
The goal was to design an air-quality monitoring system that could:
- Continuously monitor humidity and CO₂ levels
- Visually indicate poor air conditions through physical movement
- Operate smoothly without jerky motion
- Maintain stable performance with proper power management
- Log and display data on a local server
03. Proposed Solution
A compact IoT-based system using an ESP32 microcontroller was proposed. Environmental sensors continuously measure humidity and CO₂ levels, while a servo-driven 3D bird model provides a physical response when predefined thresholds are exceeded.
04. Implemented Solution
The final system monitors environmental conditions in real time. When humidity exceeds 60% and CO₂ levels rise above 400 ppm, the servo motor rotates the bird model 180° counterclockwise. Once conditions return to normal, the bird smoothly returns to its original position.
05. Our Process
The development process included defining system behavior, selecting appropriate sensors and actuators, designing the power architecture, implementing smooth servo control logic, and testing the system under real environmental conditions.
06. 3D Enclosure Design
Available in multiple color options to suit different interiors and preferences.
Custom color finishes can be applied based on branding or design requirements.
Color variants allow better visual integration with different environments. A custom 3D bird model was designed and mounted on the servo motor. The model was created to provide a natural and intuitive visual cue while remaining mechanically lightweight and reliable.
07. Circuit Design
The electronic system consists of an ESP32 microcontroller, ENS160 + AHT2x sensor for temperature, humidity, and CO₂ measurement, a 9g servo motor, a 3.7V battery with charging module, a booster module for voltage stability, and an ON/OFF switch for manual control.
08. Challenges
Key challenges included managing higher power consumption from the servo motor, achieving smooth movement without sudden jumps, and preventing repeated triggering caused by small sensor fluctuations
09. Revisions
To resolve these issues, an external voltage source was used for the servo motor, micro-stepping logic was implemented for smooth rotation, and stable threshold values with minor software delays were added to improve reliability.
10. Final Version (Result)
The final Birdie system reliably monitors air quality and provides a smooth, intuitive physical response to environmental changes. It operates stably with a mixed power setup, responds accurately to threshold conditions, and successfully transforms invisible air data into a visible, interactive indicator.
Interested in Similar Project?
If you’re planning to develop a custom IoT-based environmental monitoring system that responds intelligently to air quality, humidity, or gas levels for smart buildings, offices, labs, educational installations, or interactive products, we can help.