Add WireGuard monitoring sensors

Expose WireGuard handshake, status, enabled state, and address in
ESPHome.

esphome/energymonitor.yaml

@@ -111,6 +111,71 @@ font:
       - GF_Latin_Kernel
     glyphs: ["äöüÄÖÜß"]
 
+
+globals:
+  - id: page_index
+    type: int
+    restore_value: true
+    initial_value: '0'
+  - id: wifi_connected
+    type: bool
+    restore_value: false
+    initial_value: 'false'
+
+sensor:
+  - platform: wifi_signal
+    id: wifi_rssi
+    internal: true
+    update_interval: 10s
+  - platform: homeassistant
+    id: grid_power
+    entity_id: sensor.netzleistung
+    internal: true
+  - platform: homeassistant
+    id: balcony_solar_power
+    entity_id: sensor.balkonkraftwerk_power
+    internal: true
+  - platform: wireguard
+    latest_handshake:
+      name: 'WireGuard Latest Handshake'
+
+binary_sensor:
+  - platform: wireguard
+    status:
+      name: 'WireGuard Status'
+  - platform: wireguard
+    enabled:
+      name: 'WireGuard Enabled'
+  # M5Stack Core button A (left). GPIO39 is input-only and has an external pull-up.
+  - platform: gpio
+    pin:
+      number: GPIO39
+      mode: INPUT
+      inverted: true
+    id: button_left
+    on_press:
+      then:
+        - lambda: |-
+            id(page_index) = (id(page_index) + 2 - 1) % 2;
+        - component.update: tft
+  # M5Stack Core button C (right). GPIO37 is input-only and has an external pull-up.
+  - platform: gpio
+    pin:
+      number: GPIO37
+      mode: INPUT
+      inverted: true
+    id: button_right
+    on_press:
+      then:
+        - lambda: |-
+            id(page_index) = (id(page_index) + 1) % 2;
+        - component.update: tft
+
+text_sensor:
+  - platform: wireguard
+    address:
+      name: 'WireGuard Address'
+
 # M5CORE is the mipi_spi preset for the M5Stack Core's integrated display.
 display:
   - platform: mipi_spi
@@ -199,54 +264,3 @@ display:
                 "Weiter >");
       it.printf(160, 239, id(font_small), Color::WHITE, TextAlign::BOTTOM_CENTER,
                 "%d / 2", id(page_index) + 1);
-
-globals:
-  - id: page_index
-    type: int
-    restore_value: true
-    initial_value: '0'
-  - id: wifi_connected
-    type: bool
-    restore_value: false
-    initial_value: 'false'
-
-sensor:
-  - platform: wifi_signal
-    id: wifi_rssi
-    internal: true
-    update_interval: 10s
-  - platform: homeassistant
-    id: grid_power
-    entity_id: sensor.netzleistung
-    internal: true
-  - platform: homeassistant
-    id: balcony_solar_power
-    entity_id: sensor.balkonkraftwerk_power
-    internal: true
-
-binary_sensor:
-  # M5Stack Core button A (left). GPIO39 is input-only and has an external pull-up.
-  - platform: gpio
-    pin:
-      number: GPIO39
-      mode: INPUT
-      inverted: true
-    id: button_left
-    on_press:
-      then:
-        - lambda: |-
-            id(page_index) = (id(page_index) + 2 - 1) % 2;
-        - component.update: tft
-
-  # M5Stack Core button C (right). GPIO37 is input-only and has an external pull-up.
-  - platform: gpio
-    pin:
-      number: GPIO37
-      mode: INPUT
-      inverted: true
-    id: button_right
-    on_press:
-      then:
-        - lambda: |-
-            id(page_index) = (id(page_index) + 1) % 2;
-        - component.update: tft