diff --git a/ESP32S3-Tutorial/example/Lesson_2_Light_up_the_LED/REAMDE.md b/ESP32S3-Tutorial/example/Lesson_2_Light_up_the_LED/REAMDE.md
index 9524da3..65d1ebc 100644
--- a/ESP32S3-Tutorial/example/Lesson_2_Light_up_the_LED/REAMDE.md
+++ b/ESP32S3-Tutorial/example/Lesson_2_Light_up_the_LED/REAMDE.md
@@ -13,21 +13,21 @@
* Tpye-C input voltage is 5V;
* DCinput voltage 7V~9V
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+
### 2.2.2 Expansion board
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## 2.3.Connect the line
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## 2.4. Upload code program
### 2.4.1. Connect the main control board to the computer with a USB cable
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### 2.4.2. Open the " 2_ESP32_S3_PLUS \Lesson_2_Light_up_the_LED" code file
@@ -35,7 +35,7 @@ Select the board type as ESP32S3 Dev Module. When plugging in the USB, a new COM
Here it is COM(x), but the actual COM number will be different for everyone.
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Click "Upload" to start compiling and uploading the program to the main control board.
Waiting for the program to upload;
diff --git a/ESP32S3-Tutorial/example/Lesson_3_Button_control_LED/README.md b/ESP32S3-Tutorial/example/Lesson_3_Button_control_LED/README.md
index 8f750ac..efc5729 100644
--- a/ESP32S3-Tutorial/example/Lesson_3_Button_control_LED/README.md
+++ b/ESP32S3-Tutorial/example/Lesson_3_Button_control_LED/README.md
@@ -10,7 +10,7 @@
### 3.2.1.LED
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LED(Light Emitting Diode), which converts electrical energy into light energy, also has one-way conductivity and a
reverse breakdown voltage of about 5v. Its forward volt-ampere characteristic curve is very steep. In the development board,
@@ -19,13 +19,13 @@
## 3.3.Connect the lines
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## 3.4.Upload code
### 3.4.1. Connect the main control board to the computer with a USB cable
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### 3.4.2. Open the program file (path: 2_ESP32_S3_PLUS \ Lesson_3_Button_control_LED )