Smart Asthma Guardian
A compact personal environmental tracking prototype designed to provide real-time alerts regarding airborne particulate matter (PM2.5/PM10), volatile organic compounds, and humidity triggers in the user's immediate surroundings.
Important Technical Disclaimer
Experimental wellness & environmental awareness prototype. Not a clinically validated medical device. Not intended for diagnosis, treatment, or medical monitoring.
Problem Statement
Individuals with environmental sensitivities lack real-time localized warnings when entering spaces with high particulate concentrations or harsh volatile chemical irritants.
Project Objectives
Hardware & Sensors
- Miniature optical dust / PM2.5 particulate sensor
- Metal-oxide VOC / air quality gas sensor
- BLE-enabled low-power microcontroller
- Haptic vibration motor & RGB status LED indicator ring
- Rechargeable LiPo battery
Communication Architecture
Bluetooth Low Energy (BLE 5.0) GATT service streaming environmental telemetry frames to a mobile smartphone application.
Software & Data Processing
- Moving average signal filter for particulate readings
- BLE custom service firmware stack
- Mobile telemetry visualization client app
Implementation Workflow
- Sensor integration and response time evaluation in controlled aerosol test chamber
- Wearable 3D-printed enclosure prototyping
- BLE smartphone data sync development
Testing & results
Enclosure and sensor response verified against indoor particulate variations.
Tech stack
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