Added preference for displaying voltage.

extension.js

@@ -89,6 +89,7 @@ CpuTemperature.prototype = {
 
     _updateDisplay: function() {
         let display_fan_rpm  = settings.get_boolean('display-fan-rpm');
+        let display_voltage  = settings.get_boolean('display-voltage');
         let tempItems = new Array();
         let fanItems = new Array();
         let voltageItems = new Array();
@@ -127,7 +128,7 @@ CpuTemperature.prototype = {
                     }
                 }
             }
-            if(sensors_output[0]) voltageInfo = this._parseSensorsOutput(sensors_output[1].toString(),this._parseVoltageLine.bind(this));//get voltage from sensors
+            if(display_voltage && sensors_output[0]) voltageInfo = this._parseSensorsOutput(sensors_output[1].toString(),this._parseVoltageLine.bind(this));//get voltage from sensors
             if (voltageInfo){
                 for (let voltage in voltageInfo){
                     voltageItems.push(voltageInfo[voltage]['label']+': '+voltageInfo[voltage]['volt']+'V');

prefs.js

@@ -67,6 +67,11 @@ const CPUTemperaturePrefsWidget = new GObject.Class({
                 label: _("Display fan RPM"),
                 help: _("Show the fan rotations per minute. (default: ON)")
            },
+           show_voltage: {
+                name: _("display-voltage"),
+                label: _("Display voltage"),
+                help: _("Show the voltage of various components. (default: ON)")
+           },
         }
 
         let counter = 3;

schemas/org.gnome.shell.extensions.cpu-temperature.gschema.xml

@@ -45,5 +45,11 @@
       <description>Display fan rotation per minute.</description>
     </key>
 
+    <key type="b" name="display-voltage">
+      <default>true</default>
+      <summary>Display voltage</summary>
+      <description>Display voltage of various components.</description>
+    </key>
+
   </schema>
 </schemalist>