diff --git a/en/peripherals/machine.Pin.md b/en/peripherals/machine.Pin.md
index 966597bd83c991e48be13b2c9eedd55adbdf782e..652f01e3130d17bd59437cc5391eaa8c56698156 100644
--- a/en/peripherals/machine.Pin.md
+++ b/en/peripherals/machine.Pin.md
@@ -3562,6 +3562,13 @@ class machine.Pin(GPIOn, direction, pullMode, level)
         <p>2.GPIO27, GPIO39, and GPIO40 have weak driving capabilities, so it is recommended to use them only as input pins</p >
 </blockquote>
 </div>
+
+<div class="EC200U">
+<blockquote>
+<p>Note:</p>
+        <p>1.Pin37-GPIO11,Pin38-GPIO12,Pin39-GPIO13,Module that support GNSS function do not enable the multiplexing function of this pin and it need to be left open.</p >
+</blockquote>
+</div>
 </div>
 
 
@@ -3603,11 +3610,14 @@ This method sets the pin level.
 
 ```python
 >>> from machine import Pin
+#GPIO Output Mode - Set Pin Level
 >>> gpio1 = Pin(Pin.GPIO1, Pin.OUT, Pin.PULL_DISABLE, 0)
 >>> gpio1.write(1)
 0
+# GPIO Input Mode - Reading Pin Level
+>>> gpio1 = Pin(Pin.GPIO1, Pin.IN, Pin.PULL_DISABLE, 0)
 >>> gpio1.read()
-1
+0
 ```
 
 ### `Pin.set_dir`
diff --git a/zh/peripherals/machine.Pin.md b/zh/peripherals/machine.Pin.md
index aa44523ae61bf5b8675d0f947c39ef393ce08c41..b116aee4349f0c748489bf8a29a6eb69f67fa07a 100644
--- a/zh/peripherals/machine.Pin.md
+++ b/zh/peripherals/machine.Pin.md
@@ -3562,6 +3562,13 @@ class machine.Pin(GPIOn, direction, pullMode, level)
         <p>2.GPIO27、GPIO39、GPIO40驱动能力较弱，建议仅做输入引脚使用</p >
 </blockquote>
 </div>
+
+<div class="EC200U">
+<blockquote>
+<p>注：</p>
+        <p>1.Pin37-GPIO11,Pin38-GPIO12,Pin39-GPIO13,支持GNSS的模块不会启用此引脚的复用功能，因此该引脚需要保持处于断开状态。</p >
+</blockquote>
+</div>
 </div>
 
 ## 方法
@@ -3600,11 +3607,14 @@ Pin.write(value)
 
 ```python
 >>> from machine import Pin
+#GPIO输出模式 设置引脚电平
 >>> gpio1 = Pin(Pin.GPIO1, Pin.OUT, Pin.PULL_DISABLE, 0)
 >>> gpio1.write(1)
 0
+#GPIO输入模式 读取引脚电平
+>>> gpio1 = Pin(Pin.GPIO1, Pin.IN, Pin.PULL_DISABLE, 0)
 >>> gpio1.read()
-1
+0
 ```
 
 ### `Pin.set_dir`