IoT Air Purifier System - HCMUT Multidisciplinary Project

General Information:

• Major Component: Sensor System and Mobile Apllication for Android.
• Purpose:
  • The system has abilities to measure the temperature and humidity as well as detect the PM2.5 dust and harmful gases (such as Amonia, Sulfur, Benzene, Carbon dioxide...) concentration.
  • The system also provide a friendly interface mobile application for displaying information, supervisor and control of the system.
• Devices:
  • Microbit central hub for external devices.
  • Air Quality Sensor MQ-135.
  • Temperature and Humidity Sensor DHT-11.
  • Optical Dust Sensor PM 2.5 GP2Y1010AU0F.
  • Power Adapter.
  • Mini Motor and propeller.
  • LCD 1602.
  • Extension circuit board.
  • Activated Carbon filer and PM2.5 filter.

About the Project Layout:

• IoT_Gateway folder contains the Python code to generate a Gateway between sensor system and AdaFruit server as well as simulating serial data using Null-modem Emulator and Hercules tools.
• Mobile_App folder uses to store the implementation of the app in Flutter.

About the Project Behavior:

• Every 10 seconds, the system will take measurement of the air quality.
• Information will be stored on the AdaFruit Server for exploiting by the app.
• The mobile app:
  • allows users to turn on or turn off the system and also changing the speed of propeller when it comes to the purifier function.
  • prompt a warning message if any index exceed the safety boundary.
  • display information of the latest measurement.
  • provide a statistical chart in the past 10 minutes.