Gravity CCS811 CO2 Air Quality Sensor

This CCS811 air quality sensor from DFRobot can measure the density of eCO2 (equivalent CO2) and TVOC (Total Volatile Organic Compounds). It can be used in many applications, such as detecting air quality, in air purifiers, in ventilation systems, etc. This CCS811 air quality sensor uses AMS's unique micro-hotplate technology. Compared to conventional gas sensors, the heating wire has a lower power consumption, heats up faster, and is smaller. A small MCU is installed on the board for evaluation, from which you can easily read out the measurement data via I2C. The CCS811 supports a concentration alarm, which is triggered when the concentration exceeds the threshold value set by the user. The CCS811 air quality sensor supports multiple operating modes, such as the 5 types of measurements: every second, every 10s, every minute, every 250ms, and a sleep mode. These modes are optimized for low power consumption during sensor measurement, making the CCS811 also suitable for portable battery-powered applications.

NOTE: The chip has a special I2C clock. Therefore, it is not compatible with some controllers, such as Raspberry Pi.

Features:

• Short warm-up time
• Low power consumption
• Highly integrated MCUs and ADCs
• IAQ threshold alarm

Applications of the CCS811

• Air quality detection in cars
• Indoor air quality detection
• Air purifiers
• Ventilation system

Documentation:

• DFRobot Wiki

Technical details:

• Operating voltage: 3.3V to 5.5V
• Sleep current consumption: 0.7uA
• Interface: I2C
• I2c address: 0x5A (Default) / 0x5B
• TVOC measuring range: 0 to 1187ppb (parts per billion)
• eCO2 measuring range: 400 to 8192ppm (parts per million)
• Operating mode: 5 different ones 
• Dimension: 22 x 31 x 8.5mm
• Weight: 13g

Scope of delivery:

• 1x Gravity CCS811 CO2 Air Quality Sensor
• 1x Gravity IIC/UART Sensor Cable
• 1x Pin header 1x4Pin