Description:

The BME280 is the upgrade from BMP085/BMP180/BMP183 - with a low altitude noise of 0.25m and the same fast conversion time. It has the same specifications but can use either I2C or SPI. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.

Features:

Relative humidity range: 0 ~ 100%
The temperature range: -40°C ~ +85°C
Humidity measurement response time: 1S
Hysteresis: 2% relative humidity
Pressure range: 300 ~ 1100 hPa
Absolute pressure accuracy: absolute ± 1hPa (after soldering)
Absolute temperature accuracy: ±0.5°C (at 25°C)
Communication interface: I²C, SPI