This project addresses the challenge as it uses sensors that monitor the air quality as it contains sensors that measure some of the air pollutants like carbon monoxide and smoke, also it measures air temperature and humidity which are the factors that can affect the health if increased, furthermore, it contains a sensor that measures the air quality as total, moreover this project provides a solution to these pollutants as it contains a motor that takes in this air into an air filter if the value of the mentioned factors exceeds a certain limit, the idea of this filter is inspired from the air purifying techniques that are used in ISS, furthermore, it provides a cheap and lightweight air purification system that can be used in businesses, buildings, and even transportation.
Purify the air supply challenge grabbed our attention and inspired us as unfortunately, our society is a victim of this issue. We are absolutely aware of the problem’s repercussions so, we insisted on solving such a problem which will contribute to promoting the human life quality in many regions as the pollution in indoor air is six times the pollution outdoor.
As that being said, we started to work on the project, putting our blood into it. Our approach to developing this project was by searching a lot about the problem, the prior solutions, the factors affecting air quality and their acceptable ratio in the fresh air, etc. After that, we came up with the idea. According to searches, we determined the limits of each factor at which the motor will be activated. The temperature is 40 degrees Celsius, humidity 40%, carbon monoxide 0 ppm, air quality 1 ppm, smoke 0%, and liquified petroleum gas 0%.
The used tools are the Arduino which controls all others, four sensors, one for temperature and humidity, one for smoke, one for smoke, and the last one is for carbon monoxide. In addition, a motor and an H-bridge which controls it. Batteries produce electricity for the motor, an air purifier, and a breadboard connecting all aforementioned tools to the Arduino. Regarding code languages, we used only Arduino C. For software, we used a fritzing circuit simulator obviously to make a simulation for the circuit besides using Arduino IDE to write the code.
one of the technical problems that faced us while making this project was directing the motor’s direction as it rotates counterclockwise direction but we need it to rotate clockwise direction in order to take in the air into the purifier, this problem was solved by searching and asking some experts in the robotics field until we finally found a solution to this problem which is the H bridge which controls the direction of the motor. Our achievement was reaching a solution for indoor air pollution by monitoring and purifying air quality, which hopefully will make a difference in the future in human life quality.
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