CONBEE-DECONZ-AQUARA MULTISENSOR Reading Pressure problem

Configuration Zigbee
1

hi all

I have a bad problem with my 2 XIAOMI WSDCGQ01LM sensors on the CONBEE II and DECONZ network. The humidity and temperature values are ok, the pressure value instead varies by very few hpa, it goes from 987 to 990 hpa. I don’t understand if it is a problem of the 2 Aquara or the reading that the CONBEE key does. With VNC the sensor response is:
image
but this is not real pressure.
has anyone had the same problem?

2

It gives the raw pressure. I think that you want the MSL or Mean Sea Level pressure:

You can define a template sensor to get it based on the current temperature and raw pressure

sensor:
  - platform: template
    sensors:
      pressure_msl:
        entity_id: 
          - sensor.pressure
          - sensor.temperature
        friendly_name: "Mean Sea Level Pressure"
        unit_of_measurement: 'hPa'
        device_class: pressure
        value_template: >-
          {{ (states('sensor.pressure')|float * (1 - ((0.0065 * 160) 
             / (states('sensor.temperature')|float + (0.0065 * 160) + 273.15))
             )** -5.257)|round(1) }}

with sensor.pressure and sensor.temperature entity ids from your aqara sensor

3

hi Makai

thanks for your algorithm, it works perfectly, but my problem is that the sensor always gives the same pressure reading over time. from 986 to 989hpa. The same sensor on the zigbee2mqtt network works perfectly and detects pressure variations over time with the right value. It is a problem of reading the sensor pressure by DECONZ in my HOME ASSISTANT. I’ll try to ask PHOSCON they can give me same informations.
thanks!
Cattura