diff --git a/esphome/energymonitor.yaml b/esphome/energymonitor.yaml
new file mode 100644
index 0000000..caa1437
--- /dev/null
+++ b/esphome/energymonitor.yaml
@@ -0,0 +1,169 @@
+substitutions:
+  name: "energymonitor"
+  friendly_name: "Energy Monitor"
+
+esphome:
+  name: ${name}
+  friendly_name: ${friendly_name}
+  name_add_mac_suffix: false
+  project:
+    name: monitor.energymonitor
+    version: "1.0"
+  on_boot:
+    then:
+      - light.turn_on: display_backlight
+
+esp32:
+  board: m5stack-core-esp32
+  framework:
+    type: esp-idf
+
+network:
+  enable_ipv6: true
+
+wifi:
+  ssid: "Voltage-legacy"
+  password: !secret voltage_legacy_psk
+  power_save_mode: high
+  fast_connect: on
+  min_auth_mode: WPA2
+  ap:
+    ssid: "Energymonitor Fallback Hotspot"
+    password: !secret fallback_psk
+
+captive_portal:
+
+logger:
+
+api:
+  encryption:
+    key: !secret apikey
+
+ota:
+  platform: esphome
+  password: !secret ota
+
+spi:
+  clk_pin: GPIO18
+  mosi_pin: GPIO23
+
+output:
+  - platform: gpio
+    pin: GPIO32
+    id: display_backlight_output
+
+light:
+  - platform: binary
+    id: display_backlight
+    name: "Display Backlight"
+    output: display_backlight_output
+    restore_mode: ALWAYS_ON
+
+font:
+  - file: "fonts/Roboto-Regular.ttf"
+    id: font_small
+    size: 18
+    glyphsets:
+      - GF_Latin_Kernel
+    glyphs: ["äöüÄÖÜß"]
+  - file: "fonts/Roboto-Bold.ttf"
+    id: font_title
+    size: 28
+    glyphsets:
+      - GF_Latin_Kernel
+    glyphs: ["äöüÄÖÜß"]
+  - file: "fonts/Roboto-Bold.ttf"
+    id: font_value
+    size: 52
+    glyphsets:
+      - GF_Latin_Kernel
+    glyphs: ["äöüÄÖÜß"]
+
+# M5CORE is the mipi_spi preset for the M5Stack Core's integrated display.
+display:
+  - platform: mipi_spi
+    id: tft
+    model: M5CORE
+    cs_pin: GPIO14
+    dc_pin: GPIO27
+    reset_pin: GPIO33
+    invert_colors: true
+    update_interval: 1s
+    lambda: |-
+      it.fill(Color::BLACK);
+
+      if (id(page_index) == 0) {
+        it.printf(12, 12, id(font_small), Color::WHITE, "Netzleistung");
+        if (id(grid_power).has_state()) {
+          it.printf(308, 32, id(font_value), Color::WHITE, TextAlign::TOP_RIGHT,
+                    "%+.0f W", id(grid_power).state);
+        } else {
+          it.printf(308, 42, id(font_value), Color::WHITE, TextAlign::TOP_RIGHT,
+                    "-- W");
+        }
+
+        it.printf(12, 99, id(font_small), Color::WHITE, "Balkonkraftwerk");
+        if (id(balcony_solar_power).has_state()) {
+          it.printf(308, 119, id(font_value), Color(255, 215, 0), TextAlign::TOP_RIGHT,
+                    "%.0f W", id(balcony_solar_power).state);
+        } else {
+          it.printf(308, 129, id(font_value), Color(255, 215, 0), TextAlign::TOP_RIGHT,
+                    "-- W");
+        }
+      } else {
+        it.printf(160, 45, id(font_title), Color::WHITE, TextAlign::TOP_CENTER,
+                  "Weitere Seite");
+        it.printf(160, 95, id(font_small), Color::WHITE, TextAlign::TOP_CENTER,
+                  "Für zusätzliche Werte vorbereitet");
+      }
+
+      // Labels correspond to the left (A) and right (C) hardware buttons.
+      it.printf(8, 239, id(font_small), Color::WHITE, TextAlign::BOTTOM_LEFT,
+                "< Zurück");
+      it.printf(312, 239, id(font_small), Color::WHITE, TextAlign::BOTTOM_RIGHT,
+                "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'
+
+sensor:
+  - 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