move start of repeatedtimer to after initalized

octoprint_hd44780/__init__.py

@@ -46,9 +46,6 @@ class LCD_HD44780(octoprint.plugin.StartupPlugin,
 
         self._lcd_updating = False
 
-        timer = RepeatedTimer(30, self._lcd_update())
-        timer.start()
-
     def on_settings_initialized(self):
         self._initialize_lcd()
         self._printer.register_callback(self)
@@ -109,7 +106,8 @@ class LCD_HD44780(octoprint.plugin.StartupPlugin,
         self._line1 = printerstate.center(20)
         self.clear_lower_half()
 
-        self._lcd_update()
+        timer = RepeatedTimer(30, self._lcd_update())
+        timer.start()
 
     def _lcd_update(self):
         if self._lcd_updating: