Added overlay with temperature data from OpenHAB

Assets/Scripts/OpenHabItemView.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Globalization;
+using UnityEngine;
+using UnityEngine.Networking;
+using UnityEngine.UI;
+
+public class OpenHabItemView : MonoBehaviour
+{
+    [SerializeField]
+    private string itemUrl;
+    [SerializeField]
+    private Text text;
+    [SerializeField]
+    private float refreshInterval;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+        CultureInfo.CurrentCulture = new CultureInfo("en-US");
+        StartCoroutine(LoadAndSet());
+    }
+
+	private IEnumerator LoadAndSet()
+	{
+		while (true)
+		{
+            var www = UnityWebRequest.Get(itemUrl);
+            yield return www.SendWebRequest();
+            if (!www.isNetworkError && !www.isHttpError)
+			{
+                float result = float.NaN;
+                if (float.TryParse(www.downloadHandler.text, out result))
+				{
+                    text.text = string.Format("{0:F2}", result);
+				}
+			}
+            yield return new WaitForSeconds(refreshInterval);
+		}
+	}
+
+}