diff --git a/docs/assets/img/product_pics/core/fire/m5_fire_01.jpg b/docs/assets/img/product_pics/core/fire/m5_fire_01.jpg
new file mode 100644
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new file mode 100644
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diff --git a/docs/assets/img/product_pics/core/fire/m5_fire_04.jpg b/docs/assets/img/product_pics/core/fire/m5_fire_04.jpg
deleted file mode 100644
index b4821a2d..00000000
Binary files a/docs/assets/img/product_pics/core/fire/m5_fire_04.jpg and /dev/null differ
diff --git a/docs/assets/img/product_pics/core/fire/product_pic_fire.jpg b/docs/assets/img/product_pics/core/fire/product_pic_fire.jpg
index 876dca1e..9f85a83e 100644
Binary files a/docs/assets/img/product_pics/core/fire/product_pic_fire.jpg and b/docs/assets/img/product_pics/core/fire/product_pic_fire.jpg differ
diff --git a/docs/en/product_documents/applications/application_bala.md b/docs/en/product_documents/applications/application_bala.md
index bd1b266b..fedcd24a 100644
--- a/docs/en/product_documents/applications/application_bala.md
+++ b/docs/en/product_documents/applications/application_bala.md
@@ -19,15 +19,15 @@ The 2 DC driver module communicates with M5Stack FIRE through I2C bus. It's defa
 
 Model | M5Stack FIRE
 ---|---
-ESP32 | 240MHz dual core, 600 DMIPS, 4MB SRAM, Wi-Fi, dual mode Bluetooth
-Flash | 16M-Bytes
+ESP32 | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth
+Flash | 16MB Flash + 4MB pSRAM
 Input | 5V @ 500mA
 Interface | TypeC x 1, GROVE(I2C+I/0+UART), Pogo Pin x 1
 LCD | 2 inch, 320x240 Colorful TFT LCD, ILI9342
 Speaker | 1W-0928
 Microphone | MEMS Analog BSE3729 Microphone
 LED | SK6812 3535 RGB LED x 10
-MEMS | MPU6050, MAG3110
+MEMS | MPU9250 (MPU6500 + AK8963)
 Battery | 550mAh @ 3.7V, inside
 Op.Temp. | 32°F to 104°F ( 0°C to 40°C )
 Size | 54 x 54 x 21 mm
diff --git a/docs/en/product_documents/m5stack-core/m5core_basic.md b/docs/en/product_documents/m5stack-core/m5core_basic.md
index 8de22800..82568639 100644
--- a/docs/en/product_documents/m5stack-core/m5core_basic.md
+++ b/docs/en/product_documents/m5stack-core/m5core_basic.md
@@ -2,7 +2,7 @@
 
 ## DESCRIPTION
 
-The M5Stack **<mark>BASIC</mark>** is a black development kit based on <mark>ESP32</mark> chip composed of a black M5Core and a Bottom Base board. You can even program The M5Stack BASIC through Blockly, Arduino or MicroPython. The black core is a basic kit and **it does not own any MEMS chip(like MPU9250, MPU6050, or MAG3110...)**.
+The M5Stack **<mark>BASIC</mark>** is a black development kit based on <mark>ESP32</mark> chip composed of a black M5Core and a Bottom Base board. You can even program The M5Stack BASIC through Blockly, Arduino or MicroPython. The black core is a basic kit and **it does not own any MEMS chip(like MPU9250...)**.
 
 The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-Bus besides I2S Pins(GPIO0, GPIO12, GPIO13, GPIO15, GPIO34)for DIY. Each gpio on M-Bus is expanded as pin and port for convenience and flexibility.
 
@@ -18,7 +18,7 @@ The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-
 
 | Source        | Parameter      |
 | :----------:  |:------------: |
-| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520K, Wi-Fi, dual mode Bluetooth         |
+| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth         |
 | Flash)          | 4M-Bytes            |
 | Input          | 5V @ 500mA            |
 | Interface          | TypeC x 1, GROVE(I2C+I/0+UART) x 1            |
@@ -79,8 +79,9 @@ The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-
 
 **M-Bus**
 
-*Please refer to the last picture*
-
+<figure>
+  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="M_BUS" width="300" height="300">
+</figure>
 
 ## INCLUDES
 
@@ -118,7 +119,3 @@ The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-
 <figure>
   <img src="assets/img/product_pics/core/basic/basic_05.jpg" alt="basic_05" width="65%" height="65%">
 </figure>
-
-<figure>
-  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="basic_05" width="65%" height="65%">
-</figure>
\ No newline at end of file
diff --git a/docs/en/product_documents/m5stack-core/m5core_fire.md b/docs/en/product_documents/m5stack-core/m5core_fire.md
index 00ef2e1b..ccfb6011 100644
--- a/docs/en/product_documents/m5stack-core/m5core_fire.md
+++ b/docs/en/product_documents/m5stack-core/m5core_fire.md
@@ -4,7 +4,7 @@
 
 The M5Stack **<mark>FIRE</mark>** is a development kit based on <mark>ESP32</mark> chip. FIRE is a kit which composed of red m5core, M5Go Base and M5Go CHG. Base(for charging red m5core). You can even program The M5Stack FIRE through Blockly, Arduino or MicroPython.
 
-The M5Stack FIRE equips the ESP32 with everything necessary to program, run and develop on the wonderchip. It also features a Six-Axis (Gyro + Accelerometer) MEMS (**MPU-6050**), a 3-Axis Digital Magnetometer (**MAG3110**) and a TFT LCD, so you can create a 3D remote gesture controller, a simple "Leap Motion" via M5Stack FIRE in a day in stead of couple weeks and so on.
+The M5Stack FIRE equips the ESP32 with everything necessary to program, run and develop on the wonderchip. It also features a 9-Axis (Gyro + Accelerometer + Magnetometer) MEMS (**MPU-9250**) and a TFT LCD, so you can create a 3D remote gesture controller, a simple "Leap Motion" via M5Stack FIRE in a day in stead of couple weeks and so on.
 
 M5Go CHG. Base is composed of POGO pin. M5Go Base is composed of PORT B, PORT C, 2 RGBLed Bars(SK6812), a microphone and a Battery(600mAh).
 
@@ -21,15 +21,15 @@ M5Go CHG. Base is composed of POGO pin. M5Go Base is composed of PORT B, PORT C,
 
 | Source        | Parameter      |
 | :----------:  |:------------: |
-| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 4MB SRAM, Wi-Fi, dual mode Bluetooth         |
-| Flash          | 16M-Bytes            |
+| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth         |
+| Flash          | 16MB Flash + 4MB pSRAM |
 | Input          | 5V @ 500mA            |
 | Interface          | TypeC x 1, GROVE(I2C+I/0+UART) x 1            |
 | LCD          | 2 inch, 320x240 Colorful TFT LCD, ILI9342            |
 | Speaker          | 1W-0928            |
 | Microphone          | MEMS Analog BSE3729 Microphone            |
 | LED          | SK6812 3535 RGB LED x 10            |
-| **MEMS**          | MPU6050, MAG3110            |
+| **MEMS**          | MPU9250 (MPU6500 + AK8963)          |
 | Battery          | 550mAh @ 3.7V, inside  vb            |
 | Op.Temp.          | 32°F to 104°F ( 0°C to 40°C )            |
 | Size          | 54 x 54 x 12.5 mm            |
@@ -96,18 +96,9 @@ M5Go CHG. Base is composed of POGO pin. M5Go Base is composed of PORT B, PORT C,
 
 **MEMS Chip**
 
-*MPU6050 i2c address: 0x68*
+*MPU9250 i2c address: 0x68*
 
-| MPU6050      | ESP32 Chip    |
-| :----------:  |:------------: |
-| SCL           | GPIO22        |
-| SDA           | GPIO21        |
-| 5V            | 5V            |
-| GND           | GND           |
-
-*MAG3110 i2c address: 0x0e*
-
-| MAG3110      | ESP32 Chip    |
+| MPU9250       | ESP32 Chip    |
 | :----------:  |:------------: |
 | SCL           | GPIO22        |
 | SDA           | GPIO21        |
@@ -137,7 +128,9 @@ M5Go CHG. Base is composed of POGO pin. M5Go Base is composed of PORT B, PORT C,
 
 **M-Bus**
 
-*Please refer to the last picture*
+<figure>
+  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="M_BUS" width="300" height="300">
+</figure>
 
 ## INCLUDES
 
@@ -153,7 +146,9 @@ M5Go CHG. Base is composed of POGO pin. M5Go Base is composed of PORT B, PORT C,
     - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples)
     - [MicroPython](https://github.com/m5stack/M5GO/tree/master/examples)
 
--  **Datasheet** - [ESP32](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) - [MPU6050](https://www.invensense.com/wp-content/uploads/2015/02/MPU-6000-Datasheet1.pdf) - [MAG3110](https://www.nxp.com/docs/en/data-sheet/MAG3110.pdf)
+-  **Datasheet** - [ESP32](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) - [MPU9250](http://www.invensense.com/wp-content/uploads/2015/02/PS-MPU-9250A-01-v1.1.pdf) - [AK8963](https://www.akm.com/akm/en/file/datasheet/AK8963C.pdf)
+
+-  **Register map** - [MPU9250](https://www.invensense.com/wp-content/uploads/2015/02/RM-MPU-9250A-00-v1.6.pdf)
 
 -  **GitHub** - [Arduino](https://github.com/m5stack/M5Stack) - [MicroPython](https://github.com/m5stack/M5GO)
 
@@ -180,5 +175,9 @@ M5Go CHG. Base is composed of POGO pin. M5Go Base is composed of PORT B, PORT C,
 </figure>
 
 <figure>
-    <img src="assets/img/product_pics/core/fire/m5_fire_04.jpg" >
+    <img src="assets/img/product_pics/core/fire/m5_fire_01.jpg" >
+</figure>
+
+<figure>
+    <img src="assets/img/product_pics/core/fire/m5_fire_02.jpg" >
 </figure>
\ No newline at end of file
diff --git a/docs/en/product_documents/m5stack-core/m5core_gray.md b/docs/en/product_documents/m5stack-core/m5core_gray.md
index a6e9c94d..58aca779 100644
--- a/docs/en/product_documents/m5stack-core/m5core_gray.md
+++ b/docs/en/product_documents/m5stack-core/m5core_gray.md
@@ -20,7 +20,7 @@ The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-
 
 | Source        | Parameter      |
 | :----------:  |:------------: |
-| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520K, Wi-Fi, dual mode Bluetooth         |
+| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth         |
 | Flash)          | 4M-Bytes            |
 | Input          | 5V @ 500mA            |
 | Interface          | TypeC x 1, GROVE(I2C+I/0+UART) x 1            |
@@ -88,7 +88,9 @@ The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-
 
 **M-Bus**
 
-*Please refer to the last picture*
+<figure>
+  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="M_BUS" width="300" height="300">
+</figure>
 
 ## INCLUDES
 
@@ -129,7 +131,3 @@ The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-
 <figure>
   <img src="assets/img/product_pics/core/gray/gray_05.jpg" alt="gray_05" width="65%" height="65%">
 </figure>
-
-<figure>
-  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="basic_05" width="65%" height="65%">
-</figure>
\ No newline at end of file
diff --git a/docs/en/product_documents/m5stack-core/m5core_white.md b/docs/en/product_documents/m5stack-core/m5core_white.md
index 42a23971..96a978af 100644
--- a/docs/en/product_documents/m5stack-core/m5core_white.md
+++ b/docs/en/product_documents/m5stack-core/m5core_white.md
@@ -21,7 +21,7 @@ The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-
 
 | Source        | Parameter      |
 | :----------:  |:------------: |
-| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520K, Wi-Fi, dual mode Bluetooth         |
+| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth         |
 | Flash)          | 4M-Bytes            |
 | Input          | 5V @ 500mA            |
 | Interface          | TypeC x 1, GROVE(I2C+I/0+UART) x 1            |
@@ -126,7 +126,9 @@ The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-
 
 **M-Bus**
 
-*Please refer to the last picture*
+<figure>
+  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="M_BUS" width="300" height="300">
+</figure>
 
 ## INCLUDES
 
@@ -151,8 +153,3 @@ The a Bottom board on the back of M5Core. It's designed for expanding gpio on M-
 <figure>
     <img src="assets/img/product_pics/core/m5go/m5go_main_board.jpg" width="500">
 </figure>
-
-<figure>
-  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="basic_05" width="65%" height="65%">
-</figure>
-</figure>
\ No newline at end of file
diff --git a/docs/en/product_documents/m5stack-core/m5go_iot_starter_kit.md b/docs/en/product_documents/m5stack-core/m5go_iot_starter_kit.md
index 9a2ea320..ad1b0e4c 100644
--- a/docs/en/product_documents/m5stack-core/m5go_iot_starter_kit.md
+++ b/docs/en/product_documents/m5stack-core/m5go_iot_starter_kit.md
@@ -20,7 +20,7 @@ We also supply some courses for teaching IOT programming. If you are interesting
 
 | Source        | Parameter      |
 | :----------:  |:------------: |
-| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520K, Wi-Fi, dual mode Bluetooth         |
+| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth         |
 | Flash)          | 4M-Bytes            |
 | Input          | 5V @ 500mA            |
 | Interface          | TypeC x 1, GROVE(I2C+I/0+UART) x 1            |
@@ -125,7 +125,9 @@ We also supply some courses for teaching IOT programming. If you are interesting
 
 **M-Bus**
 
-*Please refer to the last picture*
+<figure>
+  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="M_BUS" width="300" height="300">
+</figure>
 
 ## INCLUDES
 
@@ -174,7 +176,3 @@ We also supply some courses for teaching IOT programming. If you are interesting
 <figure>
     <img src="assets/img/product_pics/core/m5go/m5go_06.png" width="500">
 </figure>
-
-<figure>
-  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="basic_05" width="65%" height="65%">
-</figure>
\ No newline at end of file
diff --git a/docs/ja/product_documents/applications/application_bala.md b/docs/ja/product_documents/applications/application_bala.md
index abf6c406..ebc83860 100644
--- a/docs/ja/product_documents/applications/application_bala.md
+++ b/docs/ja/product_documents/applications/application_bala.md
@@ -21,15 +21,15 @@
 |項目|詳細|
 |:---|:---|
 |対応 Core | M5Stack FIRE   <mark>※M5BALAには含まれません</mark>|
-|ESP32| 240MHz x 2コア, 600 DMIPS, 4MB SRAM, Wi-Fi, デュアルモード Bluetooth|
-|Flash| 16M-Bytes|
+|ESP32| 240MHz x 2コア, 600 DMIPS, 520KB SRAM, Wi-Fi, デュアルモード Bluetooth|
+|Flash| 16MB Flash + 4MB pSRAM|
 |電源入力 | 5V @ 500mA|
 |インターフェース | USB Type-C x 1, Grove(I2C+I/0+UART), Pogoピン x 1|
 |画面 | 2 inch, 320x240 Colorful TFT LCD, ILI9342|
 |スピーカー | 1W-0928|
 |マイク | MEMS Analog BSE3729 Microphone|
 |LED | SK6812 3535 RGB LED x 10|
-|MEMS | MPU6050/MAG3110|
+|MEMS | MPU9250 (MPU6500 + AK8963)|
 |電池 | 550mAh @ 3.7V 内蔵|
 |動作温度 | 32°F to 104°F ( 0°C to 40°C )|
 |サイズ | 54 x 54 x 21 mm|
@@ -78,9 +78,9 @@
 
 - [M5BALA 購入(スイッチサイエンス)](https://www.switch-science.com/catalog/3995/)
 - [M5Stack FIRE 購入(スイッチサイエンス)](https://www.switch-science.com/catalog/3953/)
-- [M5BALA 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Satck-BALA-ESP32-2DC-PSRAM-MPU6050-MAG3110-BLE/3226069_32904033658.html)
+- [M5BALA 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Satck-BALA-ESP32-2DC-PSRAM-MPU9250-BLE/3226069_32904033658.html)
 - [M5Stack FIRE 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-PSRAM-2-0-IoT-ESP32-16M-FLash-4M-PSRAM-BLE/3226069_32847906756.html)
 - [LEGO-CABLE 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-M5Bala-ESP32-6Pin-10-20/3226069_32923086380.html)
-- [MPU6050 データシート](https://store.invensense.com/datasheets/invensense/MPU-6050_DataSheet_V3%204.pdf)
-- [MPU6050 レジスタマップ](https://www.invensense.com/wp-content/uploads/2015/02/MPU-6000-Register-Map1.pdf)
-- [MAG3110 データシート](https://www.nxp.com/docs/en/data-sheet/MAG3110.pdf)
\ No newline at end of file
+- [MPU9250 データシート](http://www.invensense.com/wp-content/uploads/2015/02/PS-MPU-9250A-01-v1.1.pdf)
+- [MPU9250 レジスタマップ](https://www.invensense.com/wp-content/uploads/2015/02/RM-MPU-9250A-00-v1.6.pdf)
+- [AK8963 データシート](https://strawberry-linux.com/pub/AK8963.pdf)
\ No newline at end of file
diff --git a/docs/ja/product_documents/m5stack-core/m5core_fire.md b/docs/ja/product_documents/m5stack-core/m5core_fire.md
index d6d4e68f..594459e1 100644
--- a/docs/ja/product_documents/m5stack-core/m5core_fire.md
+++ b/docs/ja/product_documents/m5stack-core/m5core_fire.md
@@ -22,8 +22,8 @@ M5Go CHG.ベースはPOGOピン、M5GoベースはPORT B, PORT C, 2つのLEDバ
 
 |項目|詳細|
 |:---|:---|
-|ESP32| 240MHz x 2コア, 600 DMIPS, 520KB SRAM, 4MB pSRAM, Wi-Fi, デュアルモードBluetooth|
-|Flash| 16MB |
+|ESP32| 240MHz x 2コア, 600 DMIPS, 520KB SRAM, Wi-Fi, デュアルモードBluetooth|
+|Flash| 16MB Flash + 4MB pSRAM |
 |電源入力| 5V @ 500mA |
 |インターフェース | USB Type-C x 1, Grove(I2C+I/0+UART) x 1 |
 |画面| 2 inch, 320x240 Colorful TFT LCD, ILI9342|
@@ -134,7 +134,7 @@ M5Go CHG.ベースはPOGOピン、M5GoベースはPORT B, PORT C, 2つのLEDバ
 **M-Bus**
 
 <figure>
-  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="M_BUS" width="300px" height="300px">
+  <img src="assets/img/product_pics/core/M-BUS.jpg" alt="M_BUS" width="300" height="300">
 </figure>
 
 ## パッケージ内容
@@ -170,15 +170,23 @@ M5Go CHG.ベースはPOGOピン、M5GoベースはPORT B, PORT C, 2つのLEDバ
   - [MicroPython](/en/quick_start/m5core/m5stack_core_get_started_MicroPython)
 
 <figure>
-    <img src="assets/img/product_pics/core/fire/product_pic_fire.jpg" alt="fire_01" width="300px" height="300px">
+    <img src="assets/img/product_pics/core/fire/product_pic_fire.jpg" alt="fire_01" width="300" height="300">
 </figure>
 
 <figure>
-    <img src="assets/img/product_pics/core/fire/simple_sch_just_for_fire.jpg" alt="fire_02" width="300px" height="300px">
+    <img src="assets/img/product_pics/core/fire/simple_sch_just_for_fire.jpg" alt="fire_02" width="300" height="300">
 </figure>
 
 <figure>
-    <img src="assets/img/product_pics/core/fire/interface_fire.jpg" alt="fire_03" width="300px" height="300px">
+    <img src="assets/img/product_pics/core/fire/interface_fire.jpg" alt="fire_03" width="300" height="300">
+</figure>
+
+<figure>
+    <img src="assets/img/product_pics/core/fire/m5_fire_01.jpg" alt="fire_03" width="300" height="300">
+</figure>
+
+<figure>
+    <img src="assets/img/product_pics/core/fire/m5_fire_02.jpg" alt="fire_03" width="300" height="300">
 </figure>
 
 ## 関連情報
diff --git a/docs/zh_CN/product_documents/applications/application_bala.md b/docs/zh_CN/product_documents/applications/application_bala.md
index bd1b266b..fedcd24a 100644
--- a/docs/zh_CN/product_documents/applications/application_bala.md
+++ b/docs/zh_CN/product_documents/applications/application_bala.md
@@ -19,15 +19,15 @@ The 2 DC driver module communicates with M5Stack FIRE through I2C bus. It's defa
 
 Model | M5Stack FIRE
 ---|---
-ESP32 | 240MHz dual core, 600 DMIPS, 4MB SRAM, Wi-Fi, dual mode Bluetooth
-Flash | 16M-Bytes
+ESP32 | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth
+Flash | 16MB Flash + 4MB pSRAM
 Input | 5V @ 500mA
 Interface | TypeC x 1, GROVE(I2C+I/0+UART), Pogo Pin x 1
 LCD | 2 inch, 320x240 Colorful TFT LCD, ILI9342
 Speaker | 1W-0928
 Microphone | MEMS Analog BSE3729 Microphone
 LED | SK6812 3535 RGB LED x 10
-MEMS | MPU6050, MAG3110
+MEMS | MPU9250 (MPU6500 + AK8963)
 Battery | 550mAh @ 3.7V, inside
 Op.Temp. | 32°F to 104°F ( 0°C to 40°C )
 Size | 54 x 54 x 21 mm
diff --git a/docs/zh_CN/product_documents/m5stack-core/m5core_fire.md b/docs/zh_CN/product_documents/m5stack-core/m5core_fire.md
index 74c0847b..8d9a7ae7 100644
--- a/docs/zh_CN/product_documents/m5stack-core/m5core_fire.md
+++ b/docs/zh_CN/product_documents/m5stack-core/m5core_fire.md
@@ -2,7 +2,7 @@
 
 ## 描述
 
-M5Core **<mark>FIRE</mark>**是一款基于**ESP32**芯片(集成Wi-Fi和蓝牙)的升级版开发板，包括红色的主板、M5GO底座和M5GO充电底座。你可以用[M5Flow](http://flow.m5stack.com), MicroPython或Arduino来编程它. 这个红色主板包含3个按键、喇叭、LCD(320x240)、TF卡插槽、**MPU6050**和**MAG3110**。
+M5Core **<mark>FIRE</mark>**是一款基于**ESP32**芯片(集成Wi-Fi和蓝牙)的升级版开发板，包括红色的主板、M5GO底座和M5GO充电底座。你可以用[M5Flow](http://flow.m5stack.com), MicroPython或Arduino来编程它. 这个红色主板包含3个按键、喇叭、LCD(320x240)、TF卡插槽、**MPU9250**。
 
 M5GO底座内置PORT B, PORT C, 2个RGBLed灯条(SK6812), 一个麦克风和一个电池(550mAh)。
 
@@ -18,17 +18,17 @@ M5GO CHG.底座包含POGO Pin。FIRE主控通过POGO Pin与这个充电底座连
 
 | 主控资源        | 参数      |
 | :----------:  |:------------: |
-| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 4MB SRAM, Wi-Fi, dual mode Bluetooth         |
-| Flash          | 16M-Bytes            |
-| Input          | 5V @ 500mA            |
+| <mark>ESP32</mark>         | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth         |
+| Flash          | 16MB Flash + 4MB pSRAM |
+| Input          | 5V @ 500mA             |
 | Interface          | TypeC x 1, GROVE(I2C+I/0+UART) x 1            |
 | LCD          | 2 inch, 320x240 Colorful TFT LCD, ILI9342            |
 | Speaker          | 1W-0928            |
 | Microphone          | MEMS Analog BSE3729 Microphone            |
 | LED          | SK6812 3535 RGB LED x 10            |
-| **MEMS**          | MPU6050, MAG3110            |
-| Battery          | 550mAh @ 3.7V, inside  vb            |
-| Op.Temp.          | 32°F to 104°F ( 0°C to 40°C )            |
+| **MEMS**          | MPU9250 (MPU6500 + AK8963)     |
+| Battery          | 550mAh @ 3.7V, inside  vb       |
+| Op.Temp.          | 32°F to 104°F ( 0°C to 40°C )  |
 | Size          | 54 x 54 x 12.5 mm            |
 | C.A.S.E          | Plastic ( PC )            |
 | Weight          | 56g            |
@@ -93,18 +93,9 @@ M5GO CHG.底座包含POGO Pin。FIRE主控通过POGO Pin与这个充电底座连
 
 **MEMS传感器**
 
-*MPU6050 i2c address: 0x68*
+*MPU9250 i2c address: 0x68*
 
-| MPU6050      | ESP32 Chip    |
-| :----------:  |:------------: |
-| SCL           | GPIO22        |
-| SDA           | GPIO21        |
-| 5V            | 5V            |
-| GND           | GND           |
-
-*MAG3110 i2c address: 0x0e*
-
-| MAG3110      | ESP32 Chip    |
+| MPU9250      | ESP32 Chip    |
 | :----------:  |:------------: |
 | SCL           | GPIO22        |
 | SDA           | GPIO21        |
@@ -148,7 +139,9 @@ M5GO CHG.底座包含POGO Pin。FIRE主控通过POGO Pin与这个充电底座连
 
 -  **例程** - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples) - [MicroPython](https://github.com/m5stack/M5GO/tree/master/examples)
 
--  **数据手册** - [ESP32](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) - [MPU6050](https://www.invensense.com/wp-content/uploads/2015/02/MPU-6000-Datasheet1.pdf) - [MAG3110](https://www.nxp.com/docs/en/data-sheet/MAG3110.pdf)
+-  **数据手册** - [ESP32](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf) - [MPU9250](http://www.invensense.com/wp-content/uploads/2015/02/PS-MPU-9250A-01-v1.1.pdf) - [AK8963](https://www.akm.com/akm/en/file/datasheet/AK8963C.pdf)
+
+-  **Register map** - [MPU9250](https://www.invensense.com/wp-content/uploads/2015/02/RM-MPU-9250A-00-v1.6.pdf)
 
 -  **GitHub** - [Arduino](https://github.com/m5stack/M5Stack) - [MicroPython](https://github.com/m5stack/M5GO)
 
@@ -173,5 +166,9 @@ M5GO CHG.底座包含POGO Pin。FIRE主控通过POGO Pin与这个充电底座连
 </figure>
 
 <figure>
-    <img src="assets/img/product_pics/core/fire/m5_fire_04.jpg">
+    <img src="assets/img/product_pics/core/fire/m5_fire_01.jpg">
+</figure>
+
+<figure>
+    <img src="assets/img/product_pics/core/fire/m5_fire_02.jpg">
 </figure>
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