Add muted icon to show when buzzer is muted

examples/companion_radio/ui-new/UITask.cpp

@@ -131,6 +131,14 @@ class HomeScreen : public UIScreen {
     // fill the battery based on the percentage
     int fillWidth = (batteryPercentage * (iconWidth - 4)) / 100;
     display.fillRect(iconX + 2, iconY + 2, fillWidth, iconHeight - 4);
+
+    // show muted icon if buzzer is muted
+#ifdef PIN_BUZZER
+    if (_task->isBuzzerQuiet()) {
+      display.setColor(DisplayDriver::RED);
+      display.drawXbm(iconX - 9, iconY + 1, muted_icon, 8, 8);
+    }
+#endif
   }
 
   CayenneLPP sensors_lpp;

examples/companion_radio/ui-new/UITask.h

@@ -78,6 +78,14 @@ public:
   bool hasDisplay() const { return _display != NULL; }
   bool isButtonPressed() const;
 
+  bool isBuzzerQuiet() { 
+#ifdef PIN_BUZZER
+    return buzzer.isQuiet();
+#else
+    return true;
+#endif
+  }
+
   void toggleBuzzer();
   bool getGPSState();
   void toggleGPS();

examples/companion_radio/ui-new/icons.h

@@ -116,3 +116,7 @@ static const uint8_t advert_icon[] = {
 0x04, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 };
+
+static const uint8_t muted_icon[] = {
+  0x20, 0x6a, 0xea, 0xe4, 0xe4, 0xea, 0x6a, 0x20
+};