Data Sheet

Final Datasheet
BME280 Environmental sensor
Page 26
BST-BME280-DS001-10 | Revision 1.1 | May 2015 Bosch Sensortec
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third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.
Note: Specifications within this document are subject to change without notice.
Table 19: Register 0xF2 “ctrl_hum”
Register 0xF2
“ctrl_hum”
Name
Description
Bit 2, 1, 0
osrs_h[2:0]
Controls oversampling of humidity data. See Table 20
for settings and chapter 3.4.1 for details.
Table 20: register settings osrs_h
osrs_h[2:0]
Humidity oversampling
000
Skipped (output set to 0x8000)
001
oversampling ×1
010
oversampling ×2
011
oversampling ×4
100
oversampling ×8
101, others
oversampling ×16
5.4.4 Register 0xF3 “status”
The “status” register contains two bits which indicate the status of the device.
Table 21: Register 0xF3 “status”
Register 0xF3
“status”
Name
Description
Bit 3
measuring[0]

and back to 
to the data registers.
Bit 0
im_update[0]


copying is done. The data are copied at power-on-reset
and before every conversion.
5.4.5 Register 0xF4 “ctrl_meas”
The “ctrl_meas” register sets the pressure and temperature data acquisition options of the
device. The register needs to be written after changing “ctrl_hum” for the changes to become
effective.