diff --git a/mlock-common.yaml b/mlock-common.yaml
index bea6e96..8c84254 100644
--- a/mlock-common.yaml
+++ b/mlock-common.yaml
@@ -15,6 +15,13 @@ esphome:
   name: mlock-${name_of_board}
   platform: ESP8266
   board: d1_mini
+  on_boot:
+    - priority: 600
+      then:
+        - light.addressable_set: { id: status_led, red: 0%, green: 0%, blue: 50% }
+    - priority: -100
+      then:
+        - light.addressable_set: { id: status_led, red: 0%, green: 0%, blue: 100% }
 
 # Enable logging
 logger:
@@ -60,11 +67,19 @@ globals:
   - id: my_tag
     type: std::string
     restore_value: no
+  - id: may_switch_output
+    type: int
+    restore_value: no
 
 rc522_spi:
   cs_pin: GPIO15
   on_tag:
     then:
+      - light.addressable_set:
+          id: status_led
+          red: 100%
+          green: 100%
+          blue: 0%
       # store the tag id into global variable
       - lambda: |-
           id(my_tag) = x;
@@ -81,24 +96,18 @@ rc522_spi:
           on_response:
             # fetch token from response, store into my_token
             then:
-#              - logger.log:
-#                  format: "Data: %s"
-#                  args:
-#                    - id(http_request_data).get_string()
               - lambda: |-
                   json::parse_json(id(http_request_data).get_string(), [](JsonObject root) {
-                    const char* foobar = root["auth"]["client_token"];
-                    id(my_token) = foobar;
+                    id(my_token) = (const char*) root["auth"]["client_token"];
                   });
               # use the token to get json of scanned tag from vault
               - http_request.get:
                   url: !lambda |-
                     return ((std::string) "https://vault.ctdo.de/v1/maschinenlock/" + id(my_tag));
                   headers:
-                    X-Vault-Token: !lambda |-
-                      return id(my_token).c_str();
+                    X-Vault-Token: !lambda return id(my_token).c_str();
                   on_response:
-                    # when found, check if machine is allowed, turn on output
+                    # when found, check if machine is allowed, turn on output or blink LED red
                     then:
                       - if:
                           condition:
@@ -106,28 +115,60 @@ rc522_spi:
                           then:
                             - lambda: |-
                                 json::parse_json(id(http_request_data).get_string(), [](JsonObject root) {
-                                  std::string foobar = root["data"]["mlock-$name_of_board"];
-                                  if(foobar == "True") {
+                                  int foobar = root["data"]["mlock-$name_of_board"];
+                                  if(foobar == 1) {
                                     id(mlock_${name_of_board}_switch).turn_on();
+                                    id(may_switch_output) = 1;
+                                  } else {
+                                    id(may_switch_output) = 0;
                                   }
                                 });
- 
-
-# connect the esphome switch to an physical output
-output:
-  - platform: gpio
-    pin: D1
-    id: mlock_${name_of_board}_gpio_relais_output
+                            - if:
+                                condition:
+                                  lambda: 'return id(may_switch_output);'
+                                then:
+                                  - light.addressable_set: { id: status_led, red: 0%, green: 100%, blue: 0% }
+                                else:
+                                  - repeat:
+                                      count: 3
+                                      then:
+                                        - light.addressable_set: { id: status_led, red: 100%, green: 0%, blue: 0% }
+                                        - delay: 0.1s
+                                        - light.addressable_set: { id: status_led, red: 0%, green: 0%, blue: 0% }
+                                        - delay: 0.1s
+                                  - if: # return LED to old state before blinking
+                                      condition:
+                                        switch.is_on: mlock_${name_of_board}_switch
+                                      then:
+                                        - light.addressable_set: { id: status_led, red: 0%, green: 100%, blue: 0% }
+                                      else:
+                                        - light.addressable_set: { id: status_led, red: 100%, green: 0%, blue: 0% }
+                          else: # vault returns 404 on missing/unknown Tag so blink LED
+                            - repeat:
+                                count: 3
+                                then:
+                                  - light.addressable_set: { id: status_led, red: 100%, green: 0%, blue: 0% }
+                                  - delay: 0.5s
+                                  - light.addressable_set: { id: status_led, red: 0%, green: 0%, blue: 0% }
+                                  - delay: 0.5s
+                            - if: # return LED to old state before blinking
+                                condition:
+                                  switch.is_on: mlock_${name_of_board}_switch
+                                then:
+                                  - light.addressable_set: { id: status_led, red: 0%, green: 100%, blue: 0% }
+                                else:
+                                  - light.addressable_set: { id: status_led, red: 100%, green: 0%, blue: 0% }
+                            
+                                  
 
 # switch component for the output state
 switch:
-  - platform: output
+  - platform: gpio
+    pin: D1
     name: "Relais Output"
     id: mlock_${name_of_board}_switch
-    output: 'mlock_${name_of_board}_gpio_relais_output'
     internal: true    # hide from Homeassistant, so no one can turn it on without Tag-Scanning
 
-
 binary_sensor:
   # sensor input for Turning Device off
   - platform: gpio
@@ -138,6 +179,8 @@ binary_sensor:
     id: ${name_of_board}gpio_input_ausschalter
     on_press:
       - switch.turn_off: mlock_${name_of_board}_switch
+      - light.addressable_set: { id: status_led, red: 100%, green: 0%, blue: 0% }
+
   # a template sensor for showing the current switch state (read only)
   - platform: template
     id: mlock_${name_of_board}_state_output
@@ -154,11 +197,22 @@ button:
     id: ${name_of_board}_btn_ausschalter
     on_press:
       - switch.turn_off: mlock_${name_of_board}_switch
+      - light.addressable_set: { id: status_led, red: 100%, green: 0%, blue: 0% }
+
+
+      
+light:
+  - platform: neopixelbus
+    type: GRB
+    variant: WS2812
+    pin: D4
+    name: status_led
+    id: status_led
+    num_leds: 1
+    internal: true
 
       
       
       
       
-      
-      
       
\ No newline at end of file