BME680 Breakout Humidity, Pressure, Temperature & Air Quality Sensor

The Bosch Sensortec BME680 is one of the latest environmental sensors, for humidity, pressure, temperature and air quality, with digital I2C/TWI and SPI interface. On the breakout board there are a voltage regulator and a level converter for the I2C/SPI interface. Therefore, the sensor can be operated from 3V to 5V. 

Air quality is returned as a resistance value. The better the air quality, the higher the resistance value. In the outdoor area, the resistance goes up to about 400 to 500kOhm. In order to measure the air quality, there is a small heater in the sensor that is activated with each measurement. This heater affects the temperature. If you carry out several measurements in a short time, the temperature value can be displayed up to 1.5°C higher. 

Info:
As this sensor is very new on the market, I do not recommend it for beginners as there are not many examples available yet. 

Links:

• Documentation and Arduino Library: https://github.com/watterott/BME680-Breakout

Technical Details:

General:

• Operating voltage: 3 to 5V
  
• Dimensions: 20 x 20 x 2.6mm
  
• Weight: 3g

Humidity sensor:

• Response time (τ63%) 8s
  
• Accuracy tolerance ± 3 % relative humidity
  
• Hysteresis ≤ 1.5 % relative humidity

Pressure sensor:

• Pressure range 300 … 1100 hPa (equiv. to +9000…-500 m above/below sea level)
  
• Relative accuracy ±0.12 hPa, equiv. to ±1 m (950 … 1050hPa @25°C)
  
• Absolute accuracy typ. ±1 hPa (950 ...1050 hPa, 0 ...+40 °C)

Temperature sensor:

• Operating range Operational -40°C - +85°C
  
• Full accuracy 0°C - +65°C

Air quality sensor:

• Response time (τ33-63%) 1s
  
• Indoor air quality (IAQ) index output
  

Package contents:

• 1x BME680 Breakout (Humidity, Pressure, Temperature & Air Quality sensor)
  
• 1x Pin header 8x1 Pin