Data Sheet

Bosch Sensortec | BME280 Data sheet
19 | 55
Modifications reserved | Data subject to change without notice
Document number: BST-BME280-DS002-15
Revision_1.6_092018
The step response (e.g. response to in sudden change in height) of the different filter settings is
displayed in Figure 7.
Figure 7: Step response at different IIR filter settings
3.5 Recommended modes of operation
The different oversampling options, filter settings and sensor modes result in a large number of
possible settings. In this chapter, a number of settings recommended for various scenarios are
presented.
3.5.1 Weather monitoring
Description: Only a very low data rate is needed. Power consumption is minimal. Noise of pressure
values is of no concern. Humidity, pressure and temperature are monitored.
Table 7: Settings and performance for weather monitoring
Suggested settings for weather monitoring
Sensor mode
forced mode, 1 sample / minute
Oversampling settings
pressure ×1, temperature ×1, humidity ×1
IIR filter settings
filter off
Performance for suggested settings
Current consumption
0.16 µA
RMS Noise
3.3 Pa / 30 cm, 0.07 %RH
Data output rate
1/60 Hz
3.5.2 Humidity sensing
Description: A low data rate is needed. Power consumption is minimal. Forced mode is used to
minimize power consumption and to synchronize readout, but using normal mode would also be
possible.
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
0
10
20
30
40
50
60
70
80
90
100
Number of samples
Response to step [%]
Step response at different IIR filter settings
filter off
2
4
8
16