diff --git a/CrowPanel_ESP32_Tutorial/Code/Lesson 10 ESP32 communicates with Arduino via UART/CrowPanel_UART/4.3-5-7inch/CrowPanel_ESP32_LVGL_Demo/CrowPanel_ESP32_LVGL_Demo.ino b/CrowPanel_ESP32_Tutorial/Code/Lesson 10 ESP32 communicates with Arduino via UART/CrowPanel_UART/4.3-5-7inch/CrowPanel_ESP32_LVGL_Demo/CrowPanel_ESP32_LVGL_Demo.ino
index 74c7ff3..0a5cf10 100644
--- a/CrowPanel_ESP32_Tutorial/Code/Lesson 10 ESP32 communicates with Arduino via UART/CrowPanel_UART/4.3-5-7inch/CrowPanel_ESP32_LVGL_Demo/CrowPanel_ESP32_LVGL_Demo.ino	
+++ b/CrowPanel_ESP32_Tutorial/Code/Lesson 10 ESP32 communicates with Arduino via UART/CrowPanel_UART/4.3-5-7inch/CrowPanel_ESP32_LVGL_Demo/CrowPanel_ESP32_LVGL_Demo.ino	
@@ -140,22 +140,22 @@ void loop()
     
     if(led_color == 1)
     {
-      Serial.println( "Red\n" );
+      Serial.println( "Red" );
       led_color == 0;
     }
     else if(led_color == 2)
     {
-      Serial.println( "Green\n" );
+      Serial.println( "Green" );
       led_color == 0;
     }
     else if(led_color == 3)
     {
-      Serial.println( "Blue\n" );
+      Serial.println( "Blue" );
       led_color == 0;
     }
     else
     {
-      Serial.println( "None\n" );
+      Serial.println( "None" );
       led_color == 0;
     }
 }