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

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.

8 10 12 14 16 18 20 22 24 26 28 30 32

100

Number of samples

filter off

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