Key Highlights *Used in enhancement of GPS navigation. Used in indoor navigation (floor detection, elevator detection) Outdoor navigation, leisure and sports applications Weather forecast, Home weather stations Health care application Vertical velocity indication Discription- The BMP280 is a high precision pressure sensor module from Bosch. The sensor can measure both atmospheric pressure and temperature with an accuracy of 0.1hPa and 0.1*C respectively. It is commonly used in barometer or altimeter. It operates on 3.3V and can communicate through both SPI and IIC.