Add version sensor

ESPHome/TX-Ultimate-Easy-ESPHome_core.yaml

@@ -2,6 +2,8 @@ substitutions:
   name: tx-ultimate-easy
   friendly_name: TX Ultimate Easy
 
+  version: 0.0.1
+
 api:
 
 binary_sensor:
@@ -254,6 +256,17 @@ switch:
       then:
         - lambda: bs_vibrating->publish_state(false);
 
+text_sensor:
+  - id: tx_fw_version
+    name: Firmware version
+    platform: template
+    entity_category: diagnostic
+    icon: mdi:tag-text-outline
+    internal: false
+    update_interval: never
+    lambda: |-
+      return {"${version}"};
+
 uart:
   id: if_uart_touch
   tx_pin: GPIO19