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45 lines
1.7 KiB
45 lines
1.7 KiB
# BME280 Temperature+Pressure+Humidity Sensor
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sensor:
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- platform: bme280
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temperature:
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name: "${node_name} Temperature"
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id: temperature
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pressure:
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name: "${node_name} Pressure"
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id: pressure
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humidity:
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name: "${node_name} Humidity"
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id: humidity
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address: 0x77
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update_interval: 60s
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- platform: template
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name: "${node_name} Equivalent sea level pressure"
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id: pressure_sealevel
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lambda: |-
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const float STANDARD_ALTITUDE = ${altitude}; // in meters, see note
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return id(pressure).state / powf(1 - ((0.0065 * STANDARD_ALTITUDE) /
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(id(temperature).state + (0.0065 * STANDARD_ALTITUDE) + 273.15)), 5.257); // in hPa
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update_interval: 60s
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unit_of_measurement: 'hPa'
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- platform: template
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name: "${node_name} Absolute Humidity"
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lambda: |-
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const float mw = 18.01534; // molar mass of water g/mol
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const float r = 8.31447215; // Universal gas constant J/mol/K
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return (6.112 * powf(2.718281828, (17.67 * id(temperature).state) /
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(id(temperature).state + 243.5)) * id(humidity).state * mw) /
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((273.15 + id(temperature).state) * r); // in grams/m^3
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accuracy_decimals: 2
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update_interval: 60s
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icon: 'mdi:water'
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unit_of_measurement: 'g/m³'
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- platform: template
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name: "${node_name} Dew Point"
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lambda: |-
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return (243.5*(log(id(humidity).state/100)+((17.67*id(temperature).state)/
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(243.5+id(temperature).state)))/(17.67-log(id(humidity).state/100)-
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((17.67*id(temperature).state)/(243.5+id(temperature).state))));
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accuracy_decimals: 1
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update_interval: 60s
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unit_of_measurement: °C
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icon: 'mdi:thermometer-alert'
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