Smart Air Purifier, Monitor, Apps

Air quality sensor provides data to Apps, Web, Stand alone display and a Smart Air Purifier System

31%

Up to 31% of people in the UK have reported hay fever symptoms*

(varies depending on year)

5 million

5 Million in the UK suffer with asthma**

*(Cooke, 2018) **(British Lung Foundation, 2020)

Poor air quality has also been identified as being linked to conditions such as chronic obstructive pulmonary disease (COPD) and lung cancer.**

Smart Air Purifier

5V DC Fan controlled by a Arduino Uno powered by a single cell 18650, filtering air through a certified Hepa Filter.

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The circuit included battery protection though the use of a TP4056 module which auto shut down the fan when the cell hit a minimum of 2.7 volts.

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Android Application

Idea behind this is to allow the user to have full customisation of notifications for each data point after the filter. Also want to include graphs to compare the filtered air to the non filtered air. The data for the non filtered air will use NASA’s data. Possibly include notifications for when to change the filter on the filtration system

Website

The website gives the user a simple and easy to access interface where they are able to get graphs of the data from the sensors.

The homepage features graphs which display data such as “temperature”, “humidity”, “pressure” and “altitude”.

A user is also able to sign in and create account which lets them customise which sensors they want displayed on the homepage.

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Standalone Display

Arduino used to control 4-digit 7 segment display

With 74HC595N 8-stage Shift Register

V1 All digits display the same number

V2 Digits display static number, no refresh

V3 74HC595N added, Digits update every 11 seconds via USB Serial input