Add support to change baud rate with Nextion (#662)

* User's defined baud_rate

* Update nspanel_esphome.yaml

* Bump version to 3.2.3

nspanel_esphome.yaml

@@ -7,7 +7,8 @@
 
 
 ##### ADVANCED CONFIGURATION - activate only when you know what you do ##############################
-# substitutions:
+substitutions:
+  baud_rate: "115200"
   # ## usage of secrets-file ## -> comment in ###### Change ME ######
   # device_name: "nspanel-name" # Wird im Blueprint benötigt!
   # wifi_ssid: !secret nspanel_wifi_ssid # add in your esphome secrets file.
@@ -88,7 +89,7 @@ ota:
 
 ##### LOGGER #####
 logger:
-#  baud_rate: 0
+  baud_rate: 0
 #  level: WARN
 
 ##### CONFIGURE INTERNAL BUZZER #####
@@ -108,7 +109,7 @@ rtttl:
 uart:
   tx_pin: 16
   rx_pin: 17
-  baud_rate: 115200
+  baud_rate: ${baud_rate}
   id: tf_uart
 
 ##### START - BUTTON CONFIGURATION #####
@@ -968,7 +969,7 @@ display:
     on_setup:
       then:
         - lambda: id(disp1).send_command_printf("page 8");
-        - lambda: id(disp1).set_component_text_printf("boot.esph_version", "%s", "3.2.2"); ### esphome-version ###
+        - lambda: id(disp1).set_component_text_printf("boot.esph_version", "%s", "3.2.3"); ### esphome-version ###
         - wait_until:
             api.connected
         - lambda: id(disp1).set_component_text_printf("boot.ip_addr", "%s", id(ip_address).state.c_str());