VOC / eCO2 with I2C interface

CCS811 is a simple to use sensor that allows you to measure the level of volatile organic compounds (VOC) in the air. The measured data is used to estimate level of carbon dioxide (eCO2) equivalent. The AMS CCS811 sensor used in this module can detect many different volatile organic compounds (VOCs). It is designed to monitor indoor air quality. Via I2C the sensor returns the total volatile organic compound (TVOC) reading and the calculated equivalent level (equivalent) of carbon dioxide (eCO2).

Specification:

• Sensor manufacture: AMS
• Sensor model: CCS811
• Module model: CJMCU-811
• Supply voltage: 1.8V – 3.6V
• Current consumption during measurement: 26 mA (max. 30 mA in mode 1)
• Current consumption during sleep: 19 uA (@1.8V)
• Work temperature: -5 do 50 C
• 5 modes
• Interface: I2C (10 - 400 kHz)
• Size: 20.1 x 14.7 x 2.7 mm

Pinout:

• VCC - Supply voltage (3.3V recommended)
• GND - Ground
• SCL - I2C Clock
• SDA - I2C Data
• WAK - Wake (active low) - output
• INT - Interrupt (active low) - output
• RST - Reset (active low)
• ADD - Address (0x5A / 0x5B)

Links:

• CCS811 Arduino Library from SparkFun - PlatformIO
• SparkFun HookUp Guide