SparkFun Environmental Combo Breakout - CCS811/BME280 (Qwiic)

This unique breakout provides a variety of environmental data, including barometric pressure, humidity, temperature, TVOCs and equivalent CO₂ (or eCO₂) levels. To make it even easier to use this breakout, all communication is enacted exclusively via I²C, utilizing our handy Qwiic system. However, we still have broken out 0.1" spaced pins in case you prefer to use a breadboard.

The CCS811 is an exceedingly popular sensor, providing readings for equivalent CO₂ (or eCO₂) in the parts per million (PPM) and total volatile organic compounds in the parts per billion (PPB). The CCS811 also has a feature that allows it to fine-tune its readings if it has access to the current humidity and temperature. Luckily for us, the BME280 provides humidity, temperature and barometric pressure! This allows the sensors to work together to give us more accurate readings than they’d be able to provide on their own. We also made it easy to interface with them via I²C.

NOTE: The I²C address of the Environmental Combo Breakout is 0x77 / 0x5B and is jumper selectable to 0x76 / 0x5A. A multiplexer/Mux is required to communicate to multiple Environmental Combo Breakout sensors on a single bus.