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SparkFun Environmental Combo Breakout - CCS811/BME280 (Qwiic)

Item number 56827 Brand Sparkfun Model SEN-14348 Share Write a review
SparkFun Environmental Combo Breakout - CCS811/BME280 (Qwiic)

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The SparkFun CCS811/BME280 Environmental Combo Breakout is a versatile sensor that caters to all your atmospheric quality sensing needs. It incorporates the popular CCS811 and BME280 ICs to provide a wide array of environmental data. The breakout can measure barometric pressure, humidity, temperature, Total Volatile Organic Compounds (TVOCs), and equivalent CO2 (eCO2) levels. All communication is conducted exclusively via I2C, facilitated by the convenient Qwiic system. The breakout also features 2.54mm spaced pins for those who prefer using a breadboard.

The CCS811 sensor provides eCO2 readings in parts per million (PPM) and TVOCs in parts per billion (PPB). It has a unique feature that enables it to refine its readings when provided with current humidity and temperature data. The BME280 sensor comes in handy here, as it measures humidity, temperature, and barometric pressure. This synergy allows the sensors to provide more accurate readings than they could individually, all easily interfaced via I2C.

The I2C address of the Environmental Combo Breakout is 0x77 / 0x5B and can be altered to 0x76 / 0x5A through a jumper selection. A multiplexer/Mux is necessary to communicate with multiple Environmental Combo Breakout sensors on a single bus. If you need to use more than one sensor, consider using a Qwiic Mux Breakout.

The SparkFun Qwiic Connect System is a comprehensive ecosystem of I2C sensors, actuators, shields, and cables that make prototyping faster and less error-prone. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This design reduces the amount of required PCB space and ensures correct polarized connections.

The Environmental Combo Breakout can also be automatically detected, scanned, configured, and logged using the OpenLog Artemis datalogger system. No programming, soldering, or setup required!


  • Qwiic-Connector Enabled
  • Operation Voltage: 3.3V
  • Total Volatile Organic Compound (TVOC) sensing from 0 to 1,187 parts per billion
  • eCO2 sensing from 400 to 8,192 parts per million
  • Temperature Range: -40C to 85C
  • Humidity Range: 0--100% RH, =-3% from 20--80%
  • Pressure Range: 30,000Pa to 110,000Pa, relative accuracy of 12Pa, absolute accuracy of 100Pa
  • Altitude Range: 0 to 9.2km, relative accuracy of 1m at sea level, 2m at 9.2km


  • Schematic
  • Eagle Files
  • Qwiic Page
  • Hookup Guide
  • Qwiic Page
  • Datasheets
    • CCS811
    • BME280
  • Arduino Libraries
    • CCS811
    • BME280
  • GitHub


Brand information
Brand Sparkfun
ECO2 400 PPM - 8,192 KPPM
Air pressure 30 KPa - 110 KPa Precision: 12Pa relative
Altitude ≤ 9,2 KM Precision: 1M at sea level
Communication I2C
Connection data
Voltage 3,3 V
Temperature range -40 °C - 80 °C
Humidity ≤ 100 RH ± 3% from 20 - 80%

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