diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..596558e
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,9 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.2.0
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-added-large-files
diff --git a/base.yaml b/base.yaml
index 7737526..86e1ef7 100644
--- a/base.yaml
+++ b/base.yaml
@@ -44,7 +44,7 @@ switch:
   - platform: gpio
     id: "${id_prefix}_status_door"
     internal: true
-    pin: 
+    pin:
       number: ${status_door_pin}  # D0 output door status, HIGH for open, LOW for closed
       mode:
         output: true
@@ -53,7 +53,7 @@ switch:
   - platform: gpio
     id: "${id_prefix}_status_obstruction"
     internal: true
-    pin: 
+    pin:
       number: ${status_obstruction_pin}  # D8 output for obstruction status, HIGH for obstructed, LOW for clear
       mode:
         output: true
@@ -82,7 +82,7 @@ binary_sensor:
     id: ${id_prefix}_button
     ratgdo_id: ${id_prefix}
     name: "Button"
-    entity_category: diagnostic      
+    entity_category: diagnostic
   - platform: ratgdo
     type: motor
     id: ${id_prefix}_motor
@@ -92,7 +92,7 @@ binary_sensor:
     entity_category: diagnostic
   - platform: gpio
     id: "${id_prefix}_dry_contact_open"
-    pin: 
+    pin:
       number: ${dry_contact_open_pin}  # D5 dry contact for opening door
       inverted: true
       mode:
@@ -108,12 +108,12 @@ binary_sensor:
             - cover.open: ${id_prefix}_garage_door
   - platform: gpio
     id: "${id_prefix}_dry_contact_close"
-    pin: 
+    pin:
       number: ${dry_contact_close_pin}  # D6 dry contact for closing door
       inverted: true
       mode:
         input: true
-        pullup: true    
+        pullup: true
     name: "Dry contact close"
     entity_category: diagnostic
     on_press:
@@ -124,12 +124,12 @@ binary_sensor:
             - cover.close: ${id_prefix}_garage_door
   - platform: gpio
     id: "${id_prefix}_dry_contact_light"
-    pin: 
+    pin:
       number: ${dry_contact_light_pin}  # D3 dry contact for triggering light (no discrete light commands, so toggle only)
       inverted: true
       mode:
         input: true
-        pullup: true    
+        pullup: true
     name: "Dry contact light"
     entity_category: diagnostic
     on_press:
@@ -144,7 +144,7 @@ number:
     name: "Rolling code counter"
     mode: box
     unit_of_measurement: "codes"
-  
+
   - platform: ratgdo
     id: ${id_prefix}_opening_duration
     type: opening_duration
@@ -184,21 +184,21 @@ button:
   - platform: safe_mode
     name: "Safe mode boot"
     entity_category: diagnostic
-  
+
   - platform: template
     id: ${id_prefix}_query_status
     entity_category: diagnostic
     name: "Query status"
-    on_press: 
+    on_press:
       then:
         lambda: !lambda |-
-          id($id_prefix).query_status();  
-  
+          id($id_prefix).query_status();
+
   - platform: template
     id: ${id_prefix}_query_openings
     name: "Query openings"
     entity_category: diagnostic
-    on_press: 
+    on_press:
       then:
         lambda: !lambda |-
           id($id_prefix).query_openings();
@@ -207,7 +207,7 @@ button:
     id: ${id_prefix}_sync
     name: "Sync"
     entity_category: diagnostic
-    on_press: 
+    on_press:
       then:
         lambda: !lambda |-
           id($id_prefix).sync();
@@ -215,7 +215,7 @@ button:
   - platform: template
     id: ${id_prefix}_toggle_door
     name: "Toggle door"
-    on_press: 
+    on_press:
       then:
         lambda: !lambda |-
           id($id_prefix).toggle_door();
diff --git a/components/ratgdo/__init__.py b/components/ratgdo/__init__.py
index e2f0834..c871a68 100644
--- a/components/ratgdo/__init__.py
+++ b/components/ratgdo/__init__.py
@@ -77,7 +77,7 @@ async def to_code(config):
     pin = await cg.gpio_pin_expression(config[CONF_INPUT_OBST])
     cg.add(var.set_input_obst_pin(pin))
     cg.add(var.set_remote_id(config[CONF_REMOTE_ID]))
-    
+
     for conf in config.get(CONF_ON_SYNC_FAILED, []):
         trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
         await automation.build_automation(trigger, [], conf)
diff --git a/components/ratgdo/automation.h b/components/ratgdo/automation.h
index 2c23603..c0cfb42 100644
--- a/components/ratgdo/automation.h
+++ b/components/ratgdo/automation.h
@@ -20,4 +20,4 @@ namespace ratgdo {
     };
 
 }
-}
\ No newline at end of file
+}
diff --git a/components/ratgdo/ratgdo.h b/components/ratgdo/ratgdo.h
index c2a614e..9a27136 100644
--- a/components/ratgdo/ratgdo.h
+++ b/components/ratgdo/ratgdo.h
@@ -211,4 +211,4 @@ namespace ratgdo {
     }; // RATGDOComponent
 
 } // namespace ratgdo
-} // namespace esphome
\ No newline at end of file
+} // namespace esphome
diff --git a/components/ratgdo/ratgdo_state.h b/components/ratgdo/ratgdo_state.h
index 1397e95..e347279 100644
--- a/components/ratgdo/ratgdo_state.h
+++ b/components/ratgdo/ratgdo_state.h
@@ -65,4 +65,4 @@ namespace ratgdo {
         (UNKNOWN, 2))
 
 } // namespace ratgdo
-} // namespace esphome
\ No newline at end of file
+} // namespace esphome
diff --git a/static/index.html b/static/index.html
index e2c238e..0a31b98 100644
--- a/static/index.html
+++ b/static/index.html
@@ -167,11 +167,11 @@
         <label>
           <input type="radio" name="type" value="v2board_esp32_d1_mini" />
           <img src="./v2board_esp32_d1_mini.png" alt="ratgdo v2 board with ESP32 D1 Mini" />
-        </label>   
+        </label>
         <label>
           <input type="radio" name="type" value="v2board_esp32_lolin_s2_mini" />
           <img src="./v2board_esp32_lolin_s2_mini.png" alt="ratgdo v2 board with ESP32 lolin s2 mini" />
-        </label>      
+        </label>
       </div>
 
       <p class="button-row" align="center">
@@ -190,7 +190,7 @@
           Please support his excellent work by buying his boards.
           <a
           href="https://paulwieland.github.io/ratgdo/#order"
-          >Buy boards from Paul</a>          
+          >Buy boards from Paul</a>
         </p>
       </div>