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)