Add Aqara TVOC Sensor Support

lib/HueSensor.js

@@ -235,6 +235,7 @@ function HueSensor (accessory, id, obj) {
   this.infoService = this.accessory.getInfoService(this)
 
   let durationKey = 'duration'
+  let temperatureHistory = 'weather'
   switch (this.obj.type) {
     case 'ZGPSwitch':
     case 'ZLLSwitch':
@@ -956,6 +957,9 @@ function HueSensor (accessory, id, obj) {
       ) {
         // Develco smoke sensor
         // Develco heat sensor
+      } else if (this.obj.modelid === 'lumi.airmonitor.acn01') {
+        // Xiaomi Aquara TVOC Sensor
+        temperatureHistory = 'room2'
       } else {
         this.log.warn(
           '%s: %s: warning: unknown %s sensor %j',
@@ -971,10 +975,39 @@ function HueSensor (accessory, id, obj) {
         key: 'temperature',
         name: 'temperature',
         unit: '°C',
-        history: 'weather',
+        history: temperatureHistory,
         homekitValue: function (v) { return v ? Math.round(v / 10) / 10 : 0 }
       }
       break
+    case 'ZHAAirQuality':
+      if (
+        this.obj.manufacturername === 'LUMI' &&
+        this.obj.modelid === 'lumi.airmonitor.acn01'
+      ) {
+        // Xiaomi Aqara airquality sensor
+      } else {
+        this.log.warn(
+          '%s: %s: warning: unknown %s sensor %j',
+          this.bridge.name, this.resource, this.obj.type, this.obj
+        )
+      }
+      // falls through
+    case 'CLIPAirQuality':
+      this.service = new Service.AirQualitySensor(this.name, this.subtype)
+      this.serviceList.push(this.service)
+      this.service
+        .addOptionalCharacteristic(Characteristic.AirQuality)
+      this.type = {
+        Characteristic: Characteristic.VOCDensity,
+        key: 'airqualityppb',
+        name: 'Air Quality',
+        unit: 'voc',
+        history: 'room2',
+        homekitValue: function (v) {
+          return v ? Math.round(v * 4.56) : 0
+        }
+      }
+      break
     case 'ZLLLightLevel': // 2.7 - Hue Motion Sensor
     case 'ZHALightLevel':
       if (
@@ -1057,6 +1090,9 @@ function HueSensor (accessory, id, obj) {
       ) {
         // Xiaomi Aqara weather sensor
         // Xiaomi Mi temperature/humidity sensor
+      } else if (this.obj.modelid === 'lumi.airmonitor.acn01') {
+        // Xiaomi Aquara TVOC Sensor
+        temperatureHistory = 'room2'
       } else if (
         this.obj.manufacturername === 'Heiman' &&
         (this.obj.modelid === 'TH-H_V15' || this.obj.modelid === 'TH-T_V15')
@@ -1077,7 +1113,7 @@ function HueSensor (accessory, id, obj) {
         key: 'humidity',
         name: 'humidity',
         unit: '%',
-        history: 'weather',
+        history: temperatureHistory,
         homekitValue: function (v) { return v ? Math.round(v / 100) : 0 }
       }
       break
@@ -1529,6 +1565,11 @@ function HueSensor (accessory, id, obj) {
             this.history.entry.humidity = 0
             this.history.entry.pressure = 0
             break
+          case 'room2':
+            this.history.entry.temp = 0
+            this.history.entry.humidity = 0
+            this.history.entry.voc = 0
+            break
           default:
             break
         }
@@ -1761,6 +1802,9 @@ HueSensor.prototype.checkAttr = function (attr, event) {
 HueSensor.prototype.checkState = function (state, event) {
   for (const key in state) {
     switch (key) {
+      case 'airquality':
+        this.checkAirQuality(state.airquality)
+        break
       case 'angle':
         break
       case 'battery':
@@ -2005,6 +2049,17 @@ HueSensor.prototype.addEntry = function (changed) {
         }
       }
       break
+    case 'room2':
+      {
+        const key = this.type.key === 'airqualityppb'
+          ? 'voc'
+          : (this.type.key === 'temperature' ? 'temp' : this.type.key)
+        this.history.entry[key] = this.hk[this.type.key]
+        if (changed || this.type.key !== this.history.resource.type.key) {
+          return
+        }
+      }
+      break
     default:
       return
   }
@@ -2349,6 +2404,40 @@ HueSensor.prototype.checkVoltage = function (voltage) {
   }
 }
 
+HueSensor.prototype.checkAirQuality = function (airquality) {
+  if (this.obj.state.airquality !== airquality) {
+    this.log.debug(
+      '%s: airquality changed from %j to %j', this.name,
+      this.obj.state.airquality, airquality
+    )
+    this.obj.state.airquality = airquality
+  }
+  const qualities = {
+    excellent: Characteristic.AirQuality.EXCELLENT,
+    good: Characteristic.AirQuality.GOOD,
+    moderate: Characteristic.AirQuality.FAIR,
+    poor: Characteristic.AirQuality.INFERIOR,
+    unhealthy: Characteristic.AirQuality.POOR
+  }
+
+  let hkAirQuality = qualities[airquality]
+  if (!hkAirQuality) {
+    hkAirQuality = Characteristic.AirQuality.UNKNOWN
+  }
+
+  if (this.hk.airquality !== hkAirQuality) {
+    if (this.hk.airquality !== undefined) {
+      this.log.info(
+        '%s: set homekit airquality from %s V to %s V', this.name,
+        this.hk.airquality, hkAirQuality
+      )
+    }
+    this.hk.airquality = hkAirQuality
+    this.service.getCharacteristic(Characteristic.AirQuality)
+      .updateValue(this.hk.airquality)
+  }
+}
+
 HueSensor.prototype.checkConfig = function (config) {
   for (const key in config) {
     switch (key) {

package.json

@@ -28,7 +28,7 @@
     "node": "^14.17.6"
   },
   "dependencies": {
-    "fakegato-history": "~0.6.1",
+    "fakegato-history": "~0.6.2",
     "homebridge-lib": "~5.1.13",
     "semver": "^7.3.5",
     "ws": "^8.2.1",