The BMP280 is a very well supported barometric pressure 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 or measuring pressure altitude.

An onboard temperature sensor is included (primarily to improve accuracy of pressure measurements). This temperature data is also available within most libraries and 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.