Add check on stabilisation fo weight and LBS handling (#868)

main/ZgatewayBT.ino

@@ -1247,10 +1247,20 @@ JsonObject& process_sensors(int offset, JsonObject& BLEdata) {
 JsonObject& process_scale_v1(JsonObject& BLEdata) {
   const char* servicedata = BLEdata["servicedata"].as<const char*>();
 
-  double weight = (double)value_from_hex_data(servicedata, 2, 4, true) / 200;
-
-  //Set Json value
-  BLEdata.set("weight", (double)weight);
+  if (servicedata[0] == '2') { // stabilized
+    double weight = 0;
+    if (servicedata[1] == '2') { //kg
+      weight = (double)value_from_hex_data(servicedata, 2, 4, true) / 200;
+      BLEdata.set("unit", "kg");
+    } else if (servicedata[1] == '3') { //lbs
+      weight = (double)value_from_hex_data(servicedata, 2, 4, true) / 100;
+      BLEdata.set("unit", "lbs");
+    } else { //unknown unit
+      BLEdata.set("unit", "unknown");
+    }
+    //Set Json value
+    BLEdata.set("weight", (double)weight);
+  }
 
   return BLEdata;
 }