From 5007b0acce598bf71121db5a43c15709e4ae1c92 Mon Sep 17 00:00:00 2001
From: longranger <longranger.406@gmail.com>
Date: Sun, 24 Apr 2022 08:00:50 -0700
Subject: [PATCH] Add abs press and dewpt.

---
 _data/weather-in-1.yaml  | 36 +++++++++++++++++++++++++++++++-----
 _data/weather-out-n.yaml | 36 +++++++++++++++++++++++++++++++-----
 _data/weather-out-s.yaml | 36 +++++++++++++++++++++++++++++++-----
 3 files changed, 93 insertions(+), 15 deletions(-)

diff --git a/_data/weather-in-1.yaml b/_data/weather-in-1.yaml
index f126117..4585022 100644
--- a/_data/weather-in-1.yaml
+++ b/_data/weather-in-1.yaml
@@ -1,3 +1,6 @@
+substitutions:
+  device_name: In1
+
 esphome:
   name: weather-in-1
 
@@ -38,11 +41,34 @@ i2c:
 sensor:
   - platform: bme280
     temperature:
-      name: "TempIn1"
-      oversampling: 16x
+      name: Temp${device_name}
+      id: bme280_temperature
     pressure:
-      name: "PressIn1"
+      name: Press${device_name}
+      id: bme280_pressure
     humidity:
-      name: "HumidityIn1"
+      name: HumidityRel${device_name}
+      id: bme280_humidity
     address: 0x76
-    update_interval: 60s
+    update_interval: 15s
+  # Templates from https://esphome.io/cookbook/bme280_environment.html
+  - platform: template
+    name: HumidityAbs${device_name}
+    lambda: |-
+      const float mw = 18.01534;    // molar mass of water g/mol
+      const float r = 8.31447215;   // Universal gas constant J/mol/K
+      return (6.112 * powf(2.718281828, (17.67 * id(bme280_temperature).state) /
+        (id(bme280_temperature).state + 243.5)) * id(bme280_humidity).state * mw) /
+        ((273.15 + id(bme280_temperature).state) * r); // in grams/m^3
+    accuracy_decimals: 2
+    update_interval: 15s
+    icon: 'mdi:water'
+    unit_of_measurement: 'g/m³'
+  - platform: template
+    name: DewPt${device_name}
+    lambda: |-
+      return (243.5*(log(id(bme280_humidity).state/100)+((17.67*id(bme280_temperature).state)/
+      (243.5+id(bme280_temperature).state)))/(17.67-log(id(bme280_humidity).state/100)-
+      ((17.67*id(bme280_temperature).state)/(243.5+id(bme280_temperature).state))));
+    unit_of_measurement: °C
+    icon: 'mdi:thermometer-alert'
diff --git a/_data/weather-out-n.yaml b/_data/weather-out-n.yaml
index 433ed2f..af90887 100644
--- a/_data/weather-out-n.yaml
+++ b/_data/weather-out-n.yaml
@@ -1,3 +1,6 @@
+substitutions:
+  device_name: OutN
+
 esphome:
   name: weather-out-n
 
@@ -38,11 +41,34 @@ i2c:
 sensor:
   - platform: bme280
     temperature:
-      name: "TempOutN"
-      oversampling: 16x
+      name: Temp${device_name}
+      id: bme280_temperature
     pressure:
-      name: "PressOutN"
+      name: Press${device_name}
+      id: bme280_pressure
     humidity:
-      name: "HumidityOutN"
+      name: HumidityRel${device_name}
+      id: bme280_humidity
     address: 0x76
-    update_interval: 60s
+    update_interval: 15s
+  # Templates from https://esphome.io/cookbook/bme280_environment.html
+  - platform: template
+    name: HumidityAbs${device_name}
+    lambda: |-
+      const float mw = 18.01534;    // molar mass of water g/mol
+      const float r = 8.31447215;   // Universal gas constant J/mol/K
+      return (6.112 * powf(2.718281828, (17.67 * id(bme280_temperature).state) /
+        (id(bme280_temperature).state + 243.5)) * id(bme280_humidity).state * mw) /
+        ((273.15 + id(bme280_temperature).state) * r); // in grams/m^3
+    accuracy_decimals: 2
+    update_interval: 15s
+    icon: 'mdi:water'
+    unit_of_measurement: 'g/m³'
+  - platform: template
+    name: DewPt${device_name}
+    lambda: |-
+      return (243.5*(log(id(bme280_humidity).state/100)+((17.67*id(bme280_temperature).state)/
+      (243.5+id(bme280_temperature).state)))/(17.67-log(id(bme280_humidity).state/100)-
+      ((17.67*id(bme280_temperature).state)/(243.5+id(bme280_temperature).state))));
+    unit_of_measurement: °C
+    icon: 'mdi:thermometer-alert'
diff --git a/_data/weather-out-s.yaml b/_data/weather-out-s.yaml
index 9695e8c..6396e88 100644
--- a/_data/weather-out-s.yaml
+++ b/_data/weather-out-s.yaml
@@ -1,3 +1,6 @@
+substitutions:
+  device_name: OutS
+
 esphome:
   name: weather-out-s
 
@@ -38,11 +41,34 @@ i2c:
 sensor:
   - platform: bme280
     temperature:
-      name: "TempOutS"
-      oversampling: 16x
+      name: Temp${device_name}
+      id: bme280_temperature
     pressure:
-      name: "PressOutS"
+      name: Press${device_name}
+      id: bme280_pressure
     humidity:
-      name: "HumidityOutS"
+      name: HumidityRel${device_name}
+      id: bme280_humidity
     address: 0x76
-    update_interval: 60s
+    update_interval: 15s
+  # Templates from https://esphome.io/cookbook/bme280_environment.html
+  - platform: template
+    name: HumidityAbs${device_name}
+    lambda: |-
+      const float mw = 18.01534;    // molar mass of water g/mol
+      const float r = 8.31447215;   // Universal gas constant J/mol/K
+      return (6.112 * powf(2.718281828, (17.67 * id(bme280_temperature).state) /
+        (id(bme280_temperature).state + 243.5)) * id(bme280_humidity).state * mw) /
+        ((273.15 + id(bme280_temperature).state) * r); // in grams/m^3
+    accuracy_decimals: 2
+    update_interval: 15s
+    icon: 'mdi:water'
+    unit_of_measurement: 'g/m³'
+  - platform: template
+    name: DewPt${device_name}
+    lambda: |-
+      return (243.5*(log(id(bme280_humidity).state/100)+((17.67*id(bme280_temperature).state)/
+      (243.5+id(bme280_temperature).state)))/(17.67-log(id(bme280_humidity).state/100)-
+      ((17.67*id(bme280_temperature).state)/(243.5+id(bme280_temperature).state))));
+    unit_of_measurement: °C
+    icon: 'mdi:thermometer-alert'