Filter is only applied to temperature and pressure

[FrederikWolter]

Expected behavior

filter set with BME280 :: Filter_8
So it should be filtering temp, hum and pres; right?

Actual behavior

Temp and pres seem pretty smooth:

But humidity isn´t:

Steps to reporduce the behavior

I used the following code with library version 2.3.0 on an Wemos D1 mini:

BME280I2C::Settings settings( BME280::OSR_X1,
BME280::OSR_X1,
BME280::OSR_X1,
BME280::Mode_Forced,
BME280::StandbyTime_1000ms, BME280::Filter_8,
BME280::SpiEnable_False ); BME280I2C bme(settings);

void setup() { Serial.begin(9600); while (!Serial) {}

// Sensors
Serial.print("Starting Sensor ..."); Wire.begin(4, 5);
while (!bme.begin()) { Serial.println("waiting Sensor ..."); delay(50); } Serial.println("Sensors_done!"); }

void loop() { float temp(NAN), hum(NAN), pres(NAN); bme.read(pres, temp, hum, BME280::TempUnit_Celsius, BME280::PresUnit_hPa);

Serial.println(temp); Serial.println(hum); Serial.println(pres); delay(250000); }

[finitespace]

Hello, if you would like to try and solve this and submit a pull request, that would be awesome!

[finitespace]

Anyone else know why this might be? I have been away from the code for a while

[david-lutz]

Section 3.4.4 of the Datasheet (https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bme280-ds002.pdf) would seem to imply that the BME280 doesn't do IIR filtering for the humidity sensor.