EL 04 - Home Air Quality Monitor (HAM1) integrating Temperature and Humidity, Gas, and Particulate Concentration Sensor

Home Air Quality Monitoring or HAM1 is an innovative project that monitors the air quality indoors specially within residential spaces. The device incorporates advanced array of sensor technologies to provide real-time monitoring of critical indoor air parameters, including temperature and humidity levels, CO2, and particulate matter. The HAM1 project is equipped with ESP32 microcontroller interfaced in an Arduino IDE. The project uses an HTML file enabling users to access detailed air quality data represented by gauges and numbers which they can access on their mobile devices or computers, anytime, and anywhere in their home. 

This comprehensive device goes beyond traditional air quality monitors, which often only display limited data. By combining high accuracy, integration, and automation, HAM1 empowers users with actionable insights to create safer, more comfortable living conditions. The project’s modularity and user-friendly design further enhance its adaptability, making it a valuable tool for various user demographics, including health-conscious individuals, allergy sufferers, and persons with lungs and heart diseases.

The HAM1 serves as a comprehensive solution for monitoring, alerting, and managing indoor air conditions. It uses a combination of advanced sensors, such as AM2320-Temperature and humidity sensor, SGP30-Gas sensor, and PMSA003-Particulate concentration sensor. The device measures the basic temperature and humidity levels using AM2330, alongside are two air quality sensors. First is the SGP30 gas sensor that measures the TVOC or total volatile organic compounds and eCO2 or the equivalent CO2 levels. TVOC refers to group of chemical substances that can be found in smoke, air fresheners, and cleaning products, while eCO2 levels are found in fuel-burning appliances and house gas heating. Lastly, the PMS003A measures the particulate concentration such as PM1, PM2.5 and PM10. This involves dust, pollen, allergens, soot, and mold and fungal spores. These air quality parameters are displayed and can be accessed on the html file.

All the information is displayed both in gauges and numerical readings. The project uses a range of color spectrum to indicate the quality levels. For example, green for low level, and red for high polluted. Meanwhile the numerical readings directly indicate the concentration with higher number equates to worst quality. The html file can be used in any gadgets and any web browser. The modular design and scale of the 3D printed case allows for easy installation whether on walls or ceiling.

The creation of the HAM1 project was driven by the urgent need for a more effective, user-friendly approach to indoor air quality (IAQ) management. People spend more time indoors that outdoors. Modern living environments often expose individuals to significant indoor air pollutants, ranging from dust, smoke and gasses. These pollutants can lead to a wide range of health issues, including respiratory problems, allergies, and even chronic illnesses. With people spending up to 90% of their time indoors, addressing indoor air pollution has become a critical priority.

Currently, there is no air quality index (AQI) for indoors. Air pollution can damage your lungs, heart and your brain. The vision of our project allows user to monitor indoor air quality, to have freedom to choose their desired air cleaning appliances, and to have seamless integration to smart appliances. Our mission is for everyone to be aware of air quality indoors and mitigate the risk of air quality pollution to achieve better life for people specially those who are vulnerable to air pollutants. Those, with asthma, infants, children, old ages, and patients with lungs and heart diseases. 

Traditional air quality monitors often suffer from a lack of user-friendliness, with complex interfaces or limited customization options. HAM1 was created with a strong emphasis on usability, and simplicity, ensuring that individuals with varying technical expertise can easily operate the device and interpret the data it provides. The integration of IoT technologies and affordable sensors has opened new possibilities for IAQ management. The HAM1 project leverages these advancements to create a cutting-edge solution that delivers superior performance at a reasonable cost. With the advance sensors, it ensures reliable data and reduce power consumption, and with its intuitive dashboard, it reduces the complexity of air quality monitoring.

The HAM1 project is a cutting-edge solution to the growing challenge of indoor air pollution. By integrating advanced sensors with IoT connectivity, the HAM system delivers accurate, real-time monitoring. Its user-friendly design ensures accessibility for a diverse range of users.

Through its innovative approach to IAQ management, the HAM project exemplifies how modern technology can create healthier, more comfortable living spaces while promoting sustainability. By addressing the limitations of existing devices and offering an all-in-one solution, HAM1 sets a new standard in home air quality monitoring and management.