Added "not found" messages for gyro/temp sensor.

html/index.htm

@@ -300,7 +300,11 @@
     
         var angle = cfg["angle"];
         
-        if(angle==0) {
+        if(angle==-1) {
+          showError("Unable to connect to gyro, try a reset or power off/on")
+          $("#angle").text("No gyro"); 
+          $("#gravity").text("No gyro");
+        } else if(angle==0) {
           $("#angle").text("Gyro moving"); 
           $("#gravity").text("Gyro moving");
         } else {
@@ -329,10 +333,14 @@
 
         $("#battery").text(batt + " V (" + charge + "%)" );
 
+        if( cfg["temp-c"] == -273) {
+          $("#temp").text("No temp sensor");
+        } else {
           if( cfg["temp-format"] == "C") 
             $("#temp").text(cfg["temp-c"] + " C");
           else 
             $("#temp").text(cfg["temp-f"] + " F");
+        }
 
         if( cfg["sleep-mode"] ) 
           $("#sleep-mode").attr("checked", true );

src/webserver.cpp

@@ -332,9 +332,13 @@ void WebServerHandler::webHandleStatus() {
 
   DynamicJsonDocument doc(500);
 
-  double angle = 0;
+  double angle = 0;  // Indicate we have no valid gyro value
 
+  if (myGyro.isConnected()) {
     if (myGyro.hasValue()) angle = myGyro.getAngle();
+  } else {
+    angle = -1;  // Indicate that we have no connection to gyro
+  }
 
   double tempC = myTempSensor.getTempC(myConfig.isGyroTemp());
   double gravity = calculateGravity(angle, tempC);

src_docs/source/releases.rst

@@ -17,6 +17,8 @@ Documentation
 
 User interface
 ++++++++++++++
+* (beta3) Added error message to user message if gyro connection fails.
+* (beta3) Added  message to user message if no temp sensor can be found.
 * (beta3) Added drop down menus in user interface to simplify navigation to sub pages
 * (beta3) Changed behavior for Home Assistant Device registration, this is only done when format template is saved, during normal operation only data values are posted on MQTT. 
 * (beta2) Calibration temperature (for temp adjustment) can now be set under advanced settings.