BME280 datasheet(5/60 Pages) BOSCH

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Bosch Sensortec | BME280 Data sheet

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Modifications reserved | Data subject to change without notice

Document number: BST-BME280-DS001-23 Revision_1.23_012022

4.2 Output compensation ..............................................................................................................23

4.2.1 Computational requirements .................................................................................. 23

4.2.2 Trimming parameter readout .................................................................................. 24

4.2.3 Compensation formulas.......................................................................................... 25

5. Global memory map and register description............................................................................. 26

5.1 General remarks......................................................................................................................26

5.2 Register compatibility to BMP280............................................................................................26

5.3 Memory map............................................................................................................................26

5.4 Register description.................................................................................................................27

5.4.1 Register 0xD0 “id”................................................................................................... 27

5.4.2 Register 0xE0 “reset”.............................................................................................. 27

5.4.3 Register 0xF2 “ctrl_hum” ........................................................................................ 27

5.4.4 Register 0xF3 “status” ............................................................................................ 28

5.4.5 Register 0xF4 “ctrl_meas” ...................................................................................... 28

5.4.6 Register 0xF5 “config” ............................................................................................ 30

5.4.7 Register 0xF7…0xF9 “press” (_msb, _lsb, _xlsb) .................................................. 30

5.4.8 Register 0xFA…0xFC “temp” (_msb, _lsb, _xlsb) .................................................. 31

5.4.9 Register 0xFD…0xFE “hum” (_msb, _lsb) ............................................................. 31

6. Digital interfaces ............................................................................................................................ 32

6.1 Interface selection ...................................................................................................................32

6.2 I²C Interface.............................................................................................................................32

6.2.1 I²C write................................................................................................................... 33

6.2.2 I²C read................................................................................................................... 33

6.3 SPI interface ............................................................................................................................34

6.3.1 SPI write.................................................................................................................. 34

6.3.2 SPI read.................................................................................................................. 35

6.4 Interface parameter specification ............................................................................................35

6.4.1 General interface parameters................................................................................. 35

6.4.2 I²C timings............................................................................................................... 35

6.4.3 SPI timings.............................................................................................................. 36

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