diff --git a/docs/en/core/fire.md b/docs/en/core/fire.md
index 7249f0e5..07037be6 100644
--- a/docs/en/core/fire.md
+++ b/docs/en/core/fire.md
@@ -139,16 +139,12 @@ M5Go CHG. Base is composed of POGO pin. M5Go Base is composed of PORT B, PORT C,
    </tr>
    <tr>
       <td>Size</td>
-      <td>54 x 54 x 12.5 mm</td>
+      <td>54 x 54 x 21 mm</td>
    </tr>
    <tr>
       <td>C.A.S.E</td>
       <td>Plastic ( PC )</td>
    </tr>
-   <tr>
-      <td>Weight</td>
-      <td>120g with bottom, 100g only core</td>
-   </tr>
 </table>
 
 **<mark>NOTE:</mark>**
diff --git a/docs/en/core/m5go.md b/docs/en/core/m5go.md
index 1d8c145a..b4ecb14f 100644
--- a/docs/en/core/m5go.md
+++ b/docs/en/core/m5go.md
@@ -16,14 +16,6 @@ Programming M5GO with [UiFlow](http://flow.m5stack.com) or Arduino IDE.
 
 We also supply some courses for teaching IOT programming. If you are interesting in it, contact us through Email <tech@m5stack.com> please.
 
-**<mark>NOTE:</mark>**
-
-*We have several kinds of Cores, the following figures show the main differece with them. If you want the detailed defference with them, please click [here](https://github.com/m5stack/M5-Schematic/blob/master/Core/hardware_difference_between_cores.md).*
-
-<img src="assets/img/product_pics/core/core_comparison_04.png">
-
-<img src="assets/img/product_pics/core/core_comparison_05.png">
-
 ## Feature
 
 -  Programming Support
@@ -32,6 +24,138 @@ We also supply some courses for teaching IOT programming. If you are interesting
     -  MicroPython
 -  TF Card Support (Up to 16G)
 
+## PinMap
+
+#### MainBoard Pinmap
+
+**LCD & TF Card**
+
+*LCD Pixel：320x240*
+*Maximum storage of TF Card: 16GB*
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO23</td><td>GPIO19</td><td>GPIO18</td><td>GPIO14</td><td>GPIO27</td><td>GPIO33</td><td>GPIO32</td><td>GPIO4</td></tr>
+ <tr><td>ILI9341(LCD Driver)</td><td>/</td><td>MISO</td><td>CLK</td><td>CS</td><td>DC</td><td>RST</td><td>BL</td><td> </td></tr>
+ <tr><td>TF Card</td><td>MOSI</td><td>MISO</td><td>CLK</td><td> </td><td> </td><td> </td><td> </td><td>CS</td></tr>
+</table>
+
+**Button & Speaker**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO39</td><td>GPIO38</td><td>GPIO37</td><td>GPIO25</td></tr>
+ <tr><td>Button</td><td>BUTTON A</td><td>BUTTON B</td><td>BUTTON C</td></tr>
+ <tr><td>Speaker</td><td> </td><td> </td><td> </td><td>Speaker Pin</td></tr>
+</table>
+
+**GROVE A**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
+ <tr><td>GROVE A</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
+</table>
+
+**9-axis IMU sensor(MPU9250)**
+
+*I2C Address: 0x68*
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
+ <tr><td>MPU9250</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
+</table>
+
+#### M5GO Base Pinmap
+
+**GROVE B**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO36</td><td>GPIO26</td><td>5V</td><td>GND</td></tr>
+ <tr><td>GROVE B</td><td>GPIO36</td><td>GPIO26</td><td>5V</td><td>GND</td></tr>
+</table>
+
+**GROVE C**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO16</td><td>GPIO17</td><td>5V</td><td>GND</td></tr>
+ <tr><td>GROVE C</td><td>RXD</td><td>TXD</td><td>5V</td><td>GND</td></tr>
+</table>
+
+**LED Bar & MicroPhone**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO15</td><td>GPIO34</td></tr>
+ <tr><td>LED Bar</td><td>SIG Pin</td><td> </td></tr>
+ <tr><td>MicroPhone</td><td> </td><td>MIC Pin</td></tr>
+</table>
+
+## PARAMETER
+
+<table>
+   <tr style="font-weight:bold">
+      <td>M5Core Source</td>
+      <td>Parameter</td>
+   </tr>
+   <tr>
+      <td>ESP32</td>
+      <td>240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth</td>
+   </tr>
+   <tr>
+      <td>Flash & PSRAM</td>
+      <td>16MB Flash + 4MB pSRAM </td>
+   </tr>
+   <tr>
+      <td>Input</td>
+      <td>5V @ 500mA</td>
+   </tr>
+   <tr>
+      <td>Interface</td>
+      <td>TypeC x 1, GROVE(I2C+I/0+UART) x 1</td>
+   </tr>
+   <tr>
+      <td>LCD</td>
+      <td>2 inch, 320x240 Colorful TFT LCD, ILI9342</td>
+   </tr>
+   <tr>
+      <td>Speaker</td>
+      <td>1W-0928</td>
+   </tr>
+      <tr>
+      <td>Microphone</td>
+      <td>MEMS Analog BSE3729 Microphone</td>
+   </tr>
+   <tr>
+      <td>LED</td>
+      <td>SK6812 3535 RGB LED x 10</td>
+   </tr>
+   <tr>
+      <td>MEMS</td>
+      <td>MPU9250</td>
+   </tr>
+   <tr>
+      <td>Battery</td>
+      <td>550mAh @ 3.7V, inside  vb</td>
+   </tr>
+   <tr>
+      <td>Op.Temp.</td>
+      <td>32°F to 104°F ( 0°C to 40°C )</td>
+   </tr>
+   <tr>
+      <td>Size</td>
+      <td>54 x 54 x 21 mm</td>
+   </tr>
+   <tr>
+      <td>C.A.S.E</td>
+      <td>Plastic ( PC )</td>
+   </tr>
+</table>
+
+**<mark>NOTE:</mark>**
+
+*We have several kinds of Cores, the following figures show the main differece with them. If you want the detailed defference with them, please click [here](https://github.com/m5stack/M5-Schematic/blob/master/Core/hardware_difference_between_cores.md).*
+
+<img src="assets/img/product_pics/core/core_comparison_04.png">
+
+<img src="assets/img/product_pics/core/core_comparison_05.png">
+
 ## Include
 
 -  1x white M5Core
diff --git a/docs/en/core/m5go_lite.md b/docs/en/core/m5go_lite.md
index f0df1ed3..c1fed559 100644
--- a/docs/en/core/m5go_lite.md
+++ b/docs/en/core/m5go_lite.md
@@ -19,14 +19,6 @@ You can program M5GO Lite with [UiFlow](http://flow.m5stack.com) or Arduino IDE.
 
 We also supply some courses for teaching IOT programming. If you are interesting in it, contact us through Email <tech@m5stack.com> please.
 
-**<mark>NOTE:</mark>**
-
-*We have several kinds of Cores, the following figures show the main differece with them. If you want the detailed defference with them, please click [here](https://github.com/m5stack/M5-Schematic/blob/master/Core/hardware_difference_between_cores.md).*
-
-<img src="assets/img/product_pics/core/core_comparison_04.png">
-
-<img src="assets/img/product_pics/core/core_comparison_05.png">
-
 ## 特性
 
 -  Programming Support
@@ -35,6 +27,138 @@ We also supply some courses for teaching IOT programming. If you are interesting
     -  MicroPython
 -  TF Card Support (Up to 16G)
 
+## PinMap
+
+#### MainBoard Pinmap
+
+**LCD & TF Card**
+
+*LCD Pixel：320x240*
+*Maximum storage of TF Card: 16GB*
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO23</td><td>GPIO19</td><td>GPIO18</td><td>GPIO14</td><td>GPIO27</td><td>GPIO33</td><td>GPIO32</td><td>GPIO4</td></tr>
+ <tr><td>ILI9341(LCD Driver)</td><td>/</td><td>MISO</td><td>CLK</td><td>CS</td><td>DC</td><td>RST</td><td>BL</td><td> </td></tr>
+ <tr><td>TF Card</td><td>MOSI</td><td>MISO</td><td>CLK</td><td> </td><td> </td><td> </td><td> </td><td>CS</td></tr>
+</table>
+
+**Button & Speaker**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO39</td><td>GPIO38</td><td>GPIO37</td><td>GPIO25</td></tr>
+ <tr><td>Button</td><td>BUTTON A</td><td>BUTTON B</td><td>BUTTON C</td></tr>
+ <tr><td>Speaker</td><td> </td><td> </td><td> </td><td>Speaker Pin</td></tr>
+</table>
+
+**GROVE A**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
+ <tr><td>GROVE A</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
+</table>
+
+**9-axis IMU sensor(MPU9250)**
+
+*I2C Address: 0x68*
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
+ <tr><td>MPU9250</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
+</table>
+
+#### M5GO Base Pinmap
+
+**GROVE B**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO36</td><td>GPIO26</td><td>5V</td><td>GND</td></tr>
+ <tr><td>GROVE B</td><td>GPIO36</td><td>GPIO26</td><td>5V</td><td>GND</td></tr>
+</table>
+
+**GROVE C**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO16</td><td>GPIO17</td><td>5V</td><td>GND</td></tr>
+ <tr><td>GROVE C</td><td>RXD</td><td>TXD</td><td>5V</td><td>GND</td></tr>
+</table>
+
+**LED Bar & MicroPhone**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO15</td><td>GPIO34</td></tr>
+ <tr><td>LED Bar</td><td>SIG Pin</td><td> </td></tr>
+ <tr><td>MicroPhone</td><td> </td><td>MIC Pin</td></tr>
+</table>
+
+## PARAMETER
+
+<table>
+   <tr style="font-weight:bold">
+      <td>M5Core Source</td>
+      <td>Parameter</td>
+   </tr>
+   <tr>
+      <td>ESP32</td>
+      <td>240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth</td>
+   </tr>
+   <tr>
+      <td>Flash & PSRAM</td>
+      <td>16MB Flash + 4MB pSRAM </td>
+   </tr>
+   <tr>
+      <td>Input</td>
+      <td>5V @ 500mA</td>
+   </tr>
+   <tr>
+      <td>Interface</td>
+      <td>TypeC x 1, GROVE(I2C+I/0+UART) x 1</td>
+   </tr>
+   <tr>
+      <td>LCD</td>
+      <td>2 inch, 320x240 Colorful TFT LCD, ILI9342</td>
+   </tr>
+   <tr>
+      <td>Speaker</td>
+      <td>1W-0928</td>
+   </tr>
+      <tr>
+      <td>Microphone</td>
+      <td>MEMS Analog BSE3729 Microphone</td>
+   </tr>
+   <tr>
+      <td>LED</td>
+      <td>SK6812 3535 RGB LED x 10</td>
+   </tr>
+   <tr>
+      <td>MEMS</td>
+      <td>MPU9250</td>
+   </tr>
+   <tr>
+      <td>Battery</td>
+      <td>550mAh @ 3.7V, inside  vb</td>
+   </tr>
+   <tr>
+      <td>Op.Temp.</td>
+      <td>32°F to 104°F ( 0°C to 40°C )</td>
+   </tr>
+   <tr>
+      <td>Size</td>
+      <td>54 x 54 x 21 mm</td>
+   </tr>
+   <tr>
+      <td>C.A.S.E</td>
+      <td>Plastic ( PC )</td>
+   </tr>
+</table>
+
+**<mark>NOTE:</mark>**
+
+*We have several kinds of Cores, the following figures show the main differece with them. If you want the detailed defference with them, please click [here](https://github.com/m5stack/M5-Schematic/blob/master/Core/hardware_difference_between_cores.md).*
+
+<img src="assets/img/product_pics/core/core_comparison_04.png">
+
+<img src="assets/img/product_pics/core/core_comparison_05.png">
+
 ## 包含
 
 -  1x white M5Core
diff --git a/docs/en/unit/ir.md b/docs/en/unit/ir.md
index b8fe9c44..5a8ce4a6 100644
--- a/docs/en/unit/ir.md
+++ b/docs/en/unit/ir.md
@@ -8,15 +8,9 @@
 
 ## Description
 
-The Unit IR is a IR infrared obstacle avoidance sensor. It can
-be widely used in robot obstacle avoidance, obstacle avoidance car, line
-count, and black and white line tracking and so on.
+The Unit IR is an infrared photoelectric pair unit that integrates a pair of infrared transmitting and receiving tubes. After connecting with the M5Core, you can control whether to emit infrared light through the M5Core. The other receiving tube can detect whether infrared light is sent from other devices to the unit.
 
-It has a pair of infrared transmitting and receiving tube, tube infrared
-emit a certain frequency, when detecting direction meet with obstacles
-(reflecting surface), reflected infrared receiving tube, after the
-comparator circuit processing, green indicator will light up, at the
-same time signal output interface to output digital signal.
+Because the GROVE interface has two signal pins, one controls infrared transmission and one controls infrared reception, so if you want to send infrared light, you need the OUTPUT pin (GPIO26) to output high level.
 
 ## Feature
 
diff --git a/docs/ja/core/fire.md b/docs/ja/core/fire.md
index 32f805a6..af9db35a 100644
--- a/docs/ja/core/fire.md
+++ b/docs/ja/core/fire.md
@@ -142,16 +142,12 @@ M5Go CHG.ベースはPOGOピン、M5GoベースはPORT B, PORT C, 2つのLEDバ
    </tr>
    <tr>
       <td>サイズ</td>
-      <td>54 x 54 x 12.5 mm</td>
+      <td>54 x 54 x 21 mm</td>
    </tr>
    <tr>
       <td>ケース材質</td>
       <td>プラスチック ( PC )</td>
    </tr>
-   <tr>
-      <td>重量</td>
-      <td>120g(ボトム含む), 100g(コアのみ)</td>
-   </tr>
 </table>
 
 **<mark>メモ:</mark>**
diff --git a/docs/zh_CN/core/fire.md b/docs/zh_CN/core/fire.md
index 0c71d46b..562ab654 100644
--- a/docs/zh_CN/core/fire.md
+++ b/docs/zh_CN/core/fire.md
@@ -137,7 +137,7 @@ M5GO CHG.底座包含POGO Pin。FIRE主控通过POGO Pin与这个充电底座连
    </tr>
    <tr>
       <td>尺寸</td>
-      <td>54 x 54 x 12.5 mm</td>
+      <td>54 x 54 x 21 mm</td>
    </tr>
    <tr>
       <td>外壳材质</td>
diff --git a/docs/zh_CN/core/m5go_lite.md b/docs/zh_CN/core/m5go_lite.md
index d811018c..c2bc673e 100644
--- a/docs/zh_CN/core/m5go_lite.md
+++ b/docs/zh_CN/core/m5go_lite.md
@@ -19,6 +19,136 @@
 
 我们也提供了一些物联网开发课程方便你更快上手使用，如果你对这个感兴趣的话，欢迎给我司发邮件<tech@m5stack.com>。
 
+## 特性
+
+-  可编程，支持 [UiFlow](http://flow.m5stack.com) , MicroPython 和 Arduino
+-  支持外置 TF 卡 ( 最大 16G )
+
+## 外设的管脚映射
+
+#### 主板管脚
+
+**LCD屏幕&TF卡**
+
+*LCD像素：320x240*
+*TF卡最大支持16GB*
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO23</td><td>GPIO19</td><td>GPIO18</td><td>GPIO14</td><td>GPIO27</td><td>GPIO33</td><td>GPIO32</td><td>GPIO4</td></tr>
+ <tr><td>ILI9341</td><td>/</td><td>MISO</td><td>CLK</td><td>CS</td><td>DC</td><td>RST</td><td>BL</td><td> </td></tr>
+ <tr><td>TF卡</td><td>MOSI</td><td>MISO</td><td>CLK</td><td> </td><td> </td><td> </td><td> </td><td>CS</td></tr>
+</table>
+
+**按键&喇叭**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO39</td><td>GPIO38</td><td>GPIO37</td><td>GPIO25</td></tr>
+ <tr><td>按键引脚</td><td>BUTTON A</td><td>BUTTON B</td><td>BUTTON C</td></tr>
+ <tr><td>喇叭</td><td> </td><td> </td><td> </td><td>喇叭引脚</td></tr>
+</table>
+
+**GROVE接口A**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
+ <tr><td>GROVE A</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
+</table>
+
+**九轴姿态传感器MPU9250**
+
+*I2C地址为0x68*
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
+ <tr><td>MPU9250</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
+</table>
+
+#### M5GO底座管脚
+
+**GROVE接口B**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO36</td><td>GPIO26</td><td>5V</td><td>GND</td></tr>
+ <tr><td>GROVE B</td><td>GPIO36</td><td>GPIO26</td><td>5V</td><td>GND</td></tr>
+</table>
+
+**GROVE接口C**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO16</td><td>GPIO17</td><td>5V</td><td>GND</td></tr>
+ <tr><td>GROVE C</td><td>RXD</td><td>TXD</td><td>5V</td><td>GND</td></tr>
+</table>
+
+**LED灯条&麦克风MIC&喇叭Speaker**
+
+<table>
+ <tr><td>ESP32 Chip</td><td>GPIO15</td><td>GPIO34</td><td>GPIO25</td></tr>
+ <tr><td>LED灯条</td><td>SIG管脚</td><td> </td><td> </td></tr>
+ <tr><td>麦克风MIC</td><td> </td><td>MIC管脚</td><td> </td></tr>
+<tr><td>喇叭</td><td> </td><td> </td><td>Speaker管脚</td></tr>
+</table>
+
+## 参数
+
+<table>
+   <tr style="font-weight:bold">
+      <td>主控资源</td>
+      <td>参数</td>
+   </tr>
+   <tr>
+      <td>ESP32</td>
+      <td>240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth</td>
+   </tr>
+   <tr>
+      <td>Flash闪存</td>
+      <td>16MB Flash</td>
+   </tr>
+   <tr>
+      <td>输入电压</td>
+      <td>5V @ 500mA</td>
+   </tr>
+   <tr>
+      <td>接口</td>
+      <td>TypeC x 1, GROVE(I2C+I/0+UART) x 1</td>
+   </tr>
+   <tr>
+      <td>LCD屏幕</td>
+      <td>2 inch, 320x240 Colorful TFT LCD, ILI9342</td>
+   </tr>
+   <tr>
+      <td>喇叭</td>
+      <td>1W-0928</td>
+   </tr>
+      <tr>
+      <td>麦克风</td>
+      <td>MEMS Analog BSE3729 Microphone</td>
+   </tr>
+   <tr>
+      <td>LED</td>
+      <td>SK6812 3535 RGB LED x 10</td>
+   </tr>
+   <tr>
+      <td>MEMS</td>
+      <td>MPU9250</td>
+   </tr>
+   <tr>
+      <td>电池</td>
+      <td>550mAh @ 3.7V, inside  vb</td>
+   </tr>
+   <tr>
+      <td>工作温度</td>
+      <td>32°F to 104°F ( 0°C to 40°C )</td>
+   </tr>
+   <tr>
+      <td>尺寸</td>
+      <td>54 x 54 x 21 mm</td>
+   </tr>
+   <tr>
+      <td>外壳材质</td>
+      <td>Plastic ( PC )</td>
+   </tr>
+</table>
+
 **<mark>注意：</mark>**
 
 *我们有Core有几个版本，下图是它们主要区别的比较，如果想查看详细的资源对比，请点击[这里](https://github.com/m5stack/M5-Schematic/blob/master/Core/hardware_difference_between_cores_zh_CN.md)。*
@@ -27,11 +157,6 @@
 
 <img src="assets/img/product_pics/core/core_comparison_05_zh_CN.png">
 
-## 特性
-
--  可编程，支持 [UiFlow](http://flow.m5stack.com) , MicroPython 和 Arduino
--  支持外置 TF 卡 ( 最大 16G )
-
 ## 包含
 
 -  1x white M5Core主控
diff --git a/docs/zh_CN/unit/ir.md b/docs/zh_CN/unit/ir.md
index fae2cd5f..66e892e8 100644
--- a/docs/zh_CN/unit/ir.md
+++ b/docs/zh_CN/unit/ir.md
@@ -8,7 +8,7 @@
 
 ## 描述
 
-**<mark>IR</mark>**是一款红外光电对管Unit，集成一对红外发送和接收管。与M5Core连接之后，可以通过M5Core来控制是否发出红外光，另外的接收管能检测是否有红外光发送给unit。
+**<mark>IR</mark>**是一款红外光电对管Unit，集成一对红外发送和接收管。与M5Core连接之后，可以通过M5Core来控制是否发出红外光，另外的接收管能检测是否有发自其他设备红外光发送给unit。
 
 因为GROVE接口有两个信号引脚，一个控制红外发送，一个控制红外接收，所以如果要发送红外光则需要OUTPUT管脚(GPIO26)输出高电平。