Add support for the Indoor/Outdoor Thermo-Hygrometer (WoIOSensorTH). (#…

…200)

Co-authored-by: Donavan Becker <beckersmarthome@icloud.com>

lib/switchbot-advertising.js

@@ -110,6 +110,8 @@ class SwitchbotAdvertising {
       sd = this._parseServiceDataForWoSensorTHPlus(buf, onlog);// WoMeterPlus
     } else if (model === "r") {
       sd = this._parseServiceDataForWoStrip(buf, onlog);// WoStrip
+    } else if (model === "w") {
+      sd = this._parseServiceDataForWoIOSensorTH(buf, manufacturerData, onlog); // Indoor/Outdoor Thermo-Hygrometer
     } else {
       if (onlog && typeof onlog === "function") {
         onlog(
@@ -662,6 +664,49 @@ class SwitchbotAdvertising {
 
     return data;
   }
+
+  _parseServiceDataForWoIOSensorTH(serviceDataBuf, manufacturerDataBuf, onlog) {
+    if (serviceDataBuf.length !== 3) {
+      if (onlog && typeof onlog === "function") {
+        onlog(
+          `[_parseServiceDataForWoIOSensorTH] Service Data Buffer length ${serviceDataBuf.length} !== 3!`
+        );
+      }
+      return null;
+    }
+    if (manufacturerDataBuf.length !== 14) {
+      if (onlog && typeof onlog === "function") {
+        onlog(
+          `[_parseServiceDataForWoIOSensorTH] Manufacturer Data Buffer length ${manufacturerDataBuf.length} !== 14!`
+        );
+      }
+      return null;
+    }
+    const mdByte10 = manufacturerDataBuf.readUInt8(10);
+    const mdByte11 = manufacturerDataBuf.readUInt8(11);
+    const mdByte12 = manufacturerDataBuf.readUInt8(12);
+
+    const sdByte2 = serviceDataBuf.readUInt8(2);
+
+    const temp_sign = mdByte11 & 0b10000000 ? 1 : -1;
+    const temp_c = temp_sign * ((mdByte11 & 0b01111111) + (mdByte10 & 0b00001111) / 10);
+    const temp_f = Math.round(((temp_c * 9 / 5) + 32) * 10) / 10;
+
+    const data = {
+      model: "w",
+      modelName: "WoIOSensorTH",
+      temperature: {
+        c: temp_c,
+        f: temp_f,
+      },
+      fahrenheit: mdByte12 & 0b10000000 ? true : false, // needs to be confirmed!
+      humidity: mdByte12 & 0b01111111,
+      battery: sdByte2 & 0b01111111,
+    };
+
+    console.log(data);
+    return data;
+  }
 }
 
 module.exports = new SwitchbotAdvertising();