BME280 Combined humidity and pressure sensor BME280 Data sheet Document revision 1.6 Document release date September 2018 Document number BST-BME280-DS002-15 Technical reference code 0 273 141 185 Notes Data and descriptions in this document are subject to change without notice. Product photos and pictures are for illustration purposes only and may differ from the real product appearance 2 55 Bosch Sensortec BME280 Data sheet BME280 Digital humidity, pressure and temperature sensor Key features Package 2.5 mm x 2.5 mm x 0.93 mm metal lid LGA Digital interface IC (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz) Supply voltage V main supply voltage range: 1.71 V to 3.6 V DD VDDIO interface voltage range: 1.2 V to 3.6 V Current consumption 1.8 A 1 Hz humidity and temperature 2.8 A 1 Hz pressure and temperature 3.6 A 1 Hz humidity, pressure and temperature 0.1 A in sleep mode Operating range -40+85 C, 0100 % rel. humidity, 3001100 hPa Humidity sensor and pressure sensor can be independently enabled / disabled Register and performance compatible to Bosch Sensortec BMP280 digital pressure sensor RoHS compliant, halogen-free, MSL1 Key parameters for humidity sensor Response time ( ) 1 s 63% Accuracy tolerance 3 % relative humidity Hysteresis 1% relative humidity Key parameters for pressure sensor RMS Noise 0.2 Pa, equiv. to 1.7 cm Offset temperature coefficient 1.5 Pa/K, equiv. to 12.6 cm at 1 C temperature change Typical application Context awareness, e.g. skin detection, room change detection Fitness monitoring / well-being Warning regarding dryness or high temperatures Measurement of volume and air flow Home automation control control heating, venting, air conditioning (HVAC) Internet of things GPS enhancement (e.g. time-to-first-fix improvement, dead reckoning, slope detection) Indoor navigation (change of floor detection, elevator detection) Outdoor navigation, leisure and sports applications Weather forecast Vertical velocity indication (rise/sink speed) Target devices Handsets such as mobile phones, tablet PCs, GPS devices Navigation systems Gaming, e.g flying toys Camera (DSC, video) Home weather stations Flying toys Watches Modifications reserved Data subject to change without notice Document number: BST-BME280-DS002-15 Revision 1.6 092018