Measuring Air Quality with ESP32 & Arduino
DroneBot Workshop
Use an ESP32 or Arduino to measure the quality of the air you breathe! Today, we'll work with several air quality sensors.
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Pollution is a problem that affects everyone, no matter where they live. Even if you reside in a rural area, you are still subject to many types of pollution, both outdoors and inside your home.
Today we will look at several air quality sensors that you can use with a microcontroller. We’ll test them out using both an ESP323 and an Arduino, and we’ll also compare the readings to a commercial air quality meter to see if there is any correlation between readings.
We’ll be taking a look at the following sensors:
- MQ Gas Sensors (various models).
- PMS5003 PM2.5 Particulate Matter Sensor.
- BME280 Temperature, Humidity & Air Pressure Sensor.
- BME680 Temperature, Humidity & Gas Sensor.
- AHT20 Precision Temperature & Humidity Sensor.
- CCS811 Air Quality Sensor.
- SGP30 Air Quality Sensor.
- SGP40 Air Quality Sensor.
We’ll see how they work and what parameters they can measure, and we’ll hook them up and run a demo.
Then we’ll put a bunch of sensors together on an ESP32 to make an environmental monitoring platform.
Here is the Table of Contents for today's video:
00:00 - Introduction 01:38 - Air Quality 03:36 - Look at sensors 05:12 - Sensor Calibration Issues 06:46 - MQ Sensors Intro 12:25 - MQ Sensors Library & Code 16:42 - MQ Sensors ESP32 Considerations 21:00 - PM2.5 Sensors 27:55 - Temperature & Humidity Sensors Intro 31:25 - BME280 Demo 33:28 - BME680 Demo 35:49 - AHT20 Demo 37:33 - Air Quality Sensors Intro 39:40 - CCS811 Demo 43:09 - SGP30 Demo 45:38 - SGP40 Demo 47:36 - ESP32 Multi-Sensor 58:45 - Conclusion
On a personal note, this project actually alerted me to several areas in my home that I need to improve the air circulation in. Hopefully, you will find it equally useful!
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