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shmick/dewpoint sensor

Created April 29, 2025 04:20
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  1. shmick created this gist Apr 29, 2025.
    7 changes: 7 additions & 0 deletions dewpoint sensor
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    Original file line number Diff line number Diff line change
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    {% set temperature = states('sensor.indoor_outdoor_meter_fea7') | float %}
    {% set humidity = states('sensor.indoor_outdoor_meter_fea7_humidity') | float %}
    {% set a = 17.27 %}
    {% set b = 237.7 %}
    {% set alpha = ((a * temperature) / (b + temperature)) + (log(humidity / 100.0) if humidity > 0 else 0) %}
    {% set dewpoint = (b * alpha) / (a - alpha) %}
    {{ dewpoint.real | round(1) }}