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In this tutorial, we will interface CO2 & TVOC Gas Sensor CCS811 with Arduino & measure CO2 & TVOC in the air. The CCS811 Air Quality Breakout Board is a digital gas sensor capable of sensing a wide range of Total Volatile Organic Compounds (TVOC) & equivalent carbon dioxide (eCO2) with metal oxide (MOX) levels. We can thus use this sensor to identify the air quality whether the air is pure to breathe or not.
Earlier we did some projects like Particulate Matter Concentration (PM2.5) Measurement & Air Quality Index (AQI) using PMS5003 or MQ135 Gas Sensor. Those sensors are very good to measure the air quality but are not capable of measuring carbon dioxide level & Total Volatile Organic Compounds level. That is why CCS811 is the best sensor available in the market to measure these parameters. The CCS811 is a very tiny and ultra-low power consumption device that can be used in wearables and handheld devices for monitoring Indoor Air Quality.
So, this is why we should make our own CO2 & TVOC Meter using CCS811 Gas Sensor & Arduino Board. In this tutorial, we will go through the construction, working, internal architecture, and pins configuration of CCS811. Then using the CCS811 Arduino Library we will write few example codes and retrieve the value of CO2 & TVOC and display them on Serial Monitor. Using a 0.96″ I2C OLED Display, we will display the CO2 & TVOC Value on OLED Screen.
Source Code/Program/Schematic Link: how2electronics.com/measure-c...
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