The BME280 is a very capable barometric pressure, humidity, and temperature sensor. Its high precision piezoresistive sensor can accurately measure pressure to within approximately 1 meter pressure elevation or ±1 hPa absolute accuracy. Perfect for weather stations, environmental sensing, or measuring pressure altitude.

The built in humidity sensor is ±3% accurate and the onboard temperature sensor is typically accurate to within ±1.0°C.

The board itself is very small, is I2C and SPI capable and 3.3V logic, making it compatible with many popular microcontroller and single board computer ecosystems.