Air Quality Sensor: VOC & eCO2 - CCS811

Features:

• Air Quality Sensor for measuring the TVOC and eVOC values indoors
• TVOC reading (Total Volatile Organic Compound)
• eCO2 reading (equivalent carbon dioxide)
• Chipset: CCS811
• eCO2 concentration range: 400 to 8192ppm
• TVOC concentration range: 0 to 1187ppb
• Useful for detecting Amines, Alcohols, Organic Acids, Aldehydes, Ketones, Aliphatic and Aromatic Hydrocarbons
• Serial Communication Protocol: I2C
• ADC onboard so no conversion is needed
• Low power consumption for battery powered projects
• Operating Voltage: 1.8V to 3.6V
• Current Consumption:
  • When measuring: 26mA
  • Average when measuring every 60 seconds: 0.7mA
  • Sleep Mode: 19uA
• I2C Frequency Supported: 10 to 400khz
• Pinout:
  • VCC: 1.8V to 3.6V Power
  • GND: Ground (0V)
  • SCL: I2C Clock Pin (to microcontroller)
  • SDA: I2C Data Pin (to microcontroller)
  • WAKE: active low input that should be held low during I2C transmission
  • INT: optional active low output that is pulled low at the end of a reading and when a threshold is met
  • RST: optional active low input for Reset
  • ADDR: address set pin (when low the I2C address is 0x5A; when high the I2C address is 0x5B)