Trend with Xiaomi Thermometer

Configuration
1

I’m trying to have a sensor using Xiaomi Thermometer with BTHome firmware but it seems I do not find the proper values.

My idea is to have the trend displayed when the temp changes with 0.2 degrees in a period of 15minutes. The thermometer seems to refresh every 70 seconds.

This is how my settings looks like:

    min_gradient: 0.00108148148
    max_samples: 12.32876712328767
    sample_duration: 900

So i’m guessing the formula is (-0.2)/(12.32876712328767*15).

What am I doing wrong since it doesn’t seem to trigger properly?

2

When asking for help, please post the whole configuration that is in question. There may be other issues that we can’t see.

The value of max_samples has to be an integer, there’s no such thing as fractional samples. You need to set the value to a number that makes sense for the length of your duration as well as how often your sensor pushes updates… so it should be 13 or higher.

3

Sorry about that. Here is the complete sensor config:

  temp_rising_afara:
    entity_id: sensor.ble_temperature_afara
    min_gradient: -0.00102564102
    max_samples: 13
    sample_duration: 900
    device_class: heat
    friendly_name: Afara Temp Rising

With these values, it doesn’t trigger correctly.