From 7524d07dd95257d5453ab16c51f785e3403364e8 Mon Sep 17 00:00:00 2001
From: Lihuashen <854410664@qq.com>
Date: Wed, 28 Nov 2018 16:24:04 +0800
Subject: [PATCH] translate

---
 docs/en/api_reference.md                      |  2 +-
 .../m5stack-core/face_kit.md                  |  2 +-
 .../m5stack-core/m5core_basic.md              |  2 +-
 .../m5stack-core/m5core_fire.md               |  2 +-
 .../m5stack-core/m5core_gray.md               |  2 +-
 .../m5stack-core/m5core_white.md              |  2 +-
 .../m5stack-core/m5go_iot_starter_kit.md      |  2 +-
 .../m5stack-core/minicore_stick.md            |  2 +-
 .../product_documents/modules/module_gps.md   |  8 ++--
 .../product_documents/modules/module_lan.md   |  2 +-
 .../product_documents/modules/module_gps.md   | 14 ++-----
 .../product_documents/modules/module_gps.md   | 14 ++++++-
 .../product_documents/units/unit_396port.md   |  5 +--
 .../zh_CN/product_documents/units/unit_adc.md |  3 +-
 .../product_documents/units/unit_angle.md     |  2 +
 .../product_documents/units/unit_button.md    |  2 +
 .../units/unit_color_sensor.md                |  2 +
 .../zh_CN/product_documents/units/unit_dac.md |  2 +
 .../units/unit_dual_button.md                 |  2 +
 .../zh_CN/product_documents/units/unit_env.md |  2 +
 .../product_documents/units/unit_esp32cam.md  |  2 +
 .../zh_CN/product_documents/units/unit_hub.md |  2 +
 docs/zh_CN/product_documents/units/unit_ir.md |  2 +
 .../product_documents/units/unit_joystick.md  |  2 +
 .../product_documents/units/unit_light.md     |  2 +
 .../product_documents/units/unit_m5camera.md  |  2 +
 .../product_documents/units/unit_makey.md     |  2 +
 .../product_documents/units/unit_moisture.md  |  2 +
 .../product_documents/units/unit_ncir.md      |  2 +
 .../product_documents/units/unit_neopixel.md  |  2 +
 .../zh_CN/product_documents/units/unit_pir.md |  2 +
 .../product_documents/units/unit_proto.md     |  2 +
 .../product_documents/units/unit_relay.md     | 22 +++++-----
 .../zh_CN/product_documents/units/unit_rgb.md | 17 ++++----
 .../product_documents/units/unit_thermal.md   | 41 ++++++++++---------
 .../zh_CN/product_documents/units/unit_tof.md | 27 ++++++------
 36 files changed, 126 insertions(+), 79 deletions(-)

diff --git a/docs/en/api_reference.md b/docs/en/api_reference.md
index a577e149..f03d9d6d 100644
--- a/docs/en/api_reference.md
+++ b/docs/en/api_reference.md
@@ -1 +1 @@
-[LCD](api_reference/api_lcd)
\ No newline at end of file
+[LCD](/en/api_reference/api_lcd)
\ No newline at end of file
diff --git a/docs/en/product_documents/m5stack-core/face_kit.md b/docs/en/product_documents/m5stack-core/face_kit.md
index 3752e7ab..3516e3ce 100644
--- a/docs/en/product_documents/m5stack-core/face_kit.md
+++ b/docs/en/product_documents/m5stack-core/face_kit.md
@@ -1,6 +1,6 @@
 # FACES Kit
 
-[中文](/en/product_documents/m5stack-core/face_kit) | English | [日本語](ja/product_documents/m5stack-core/face_kit)
+[中文](/zh_CN/product_documents/m5stack-core/face_kit) | English | [日本語](ja/product_documents/m5stack-core/face_kit)
 
 **FACES Kit** is a kit composed of M5Core GRAY, functional keyboards, FACES Base, FACES Charger and some accessories(including DuPont lines, lanyard, M3 fixing screws and so on). Currently, the functional keyboards are composed of GameBoy, Calculator and QWERTY. We'll add other keyboards to FACES Kit. You can program it through Arduino IDE or MicroPython. For different applications, you can stack corresponding keyboard on FACES Base and burn corresponding firmware into M5Core. And here, you can learn more about [FACES Base](en/product_documents/bases/face_base).
 
diff --git a/docs/en/product_documents/m5stack-core/m5core_basic.md b/docs/en/product_documents/m5stack-core/m5core_basic.md
index 7e88eb09..ab334713 100644
--- a/docs/en/product_documents/m5stack-core/m5core_basic.md
+++ b/docs/en/product_documents/m5stack-core/m5core_basic.md
@@ -1,6 +1,6 @@
 # M5Core BASIC
 
-[中文](/en/product_documents/m5stack-core/m5core_basic) | English | [日本語](ja/product_documents/m5stack-core/m5core_basic)
+[中文](/zh_CN/product_documents/m5stack-core/m5core_basic) | English | [日本語](ja/product_documents/m5stack-core/m5core_basic)
 
 ## DESCRIPTION
 
diff --git a/docs/en/product_documents/m5stack-core/m5core_fire.md b/docs/en/product_documents/m5stack-core/m5core_fire.md
index e8d9eb2d..d7a5ac25 100644
--- a/docs/en/product_documents/m5stack-core/m5core_fire.md
+++ b/docs/en/product_documents/m5stack-core/m5core_fire.md
@@ -1,6 +1,6 @@
 # M5Stack FIRE
 
-[中文](/en/product_documents/m5stack-core/m5core_fire) | English | [日本語](ja/product_documents/m5stack-core/m5core_fire)
+[中文](/zh_CN/product_documents/m5stack-core/m5core_fire) | English | [日本語](ja/product_documents/m5stack-core/m5core_fire)
 
 ## DESCRIPTION
 
diff --git a/docs/en/product_documents/m5stack-core/m5core_gray.md b/docs/en/product_documents/m5stack-core/m5core_gray.md
index dab60ffc..1774bf39 100644
--- a/docs/en/product_documents/m5stack-core/m5core_gray.md
+++ b/docs/en/product_documents/m5stack-core/m5core_gray.md
@@ -1,6 +1,6 @@
 # M5Core GRAY
 
-[中文](/en/product_documents/m5stack-core/m5core_gray) | English | [日本語](ja/product_documents/m5stack-core/m5core_gray)
+[中文](/zh_CN/product_documents/m5stack-core/m5core_gray) | English | [日本語](ja/product_documents/m5stack-core/m5core_gray)
 
 ## DESCRIPTION
 
diff --git a/docs/en/product_documents/m5stack-core/m5core_white.md b/docs/en/product_documents/m5stack-core/m5core_white.md
index 080fa911..4ee71fdf 100644
--- a/docs/en/product_documents/m5stack-core/m5core_white.md
+++ b/docs/en/product_documents/m5stack-core/m5core_white.md
@@ -1,6 +1,6 @@
 # M5Core WHITE
 
-[中文](/en/product_documents/m5stack-core/m5core_white) | English | [日本語](ja/product_documents/m5stack-core/m5core_white)
+[中文](/zh_CN/product_documents/m5stack-core/m5core_white) | English | [日本語](ja/product_documents/m5stack-core/m5core_white)
 
 ## DESCRIPTION
 
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 0cc2e3cd..008aa537 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
@@ -1,6 +1,6 @@
 # M5GO IOT Starter Kit
 
-[中文](/en/product_documents/m5stack-core/m5go_iot_starter_kit) | English | [日本語](ja/product_documents/m5stack-core/m5go_iot_starter_kit)
+[中文](/zh_CN/product_documents/m5stack-core/m5go_iot_starter_kit) | English | [日本語](ja/product_documents/m5stack-core/m5go_iot_starter_kit)
 
 ## DESCRIPTION
 
diff --git a/docs/en/product_documents/m5stack-core/minicore_stick.md b/docs/en/product_documents/m5stack-core/minicore_stick.md
index ff276fa6..e83c8d11 100644
--- a/docs/en/product_documents/m5stack-core/minicore_stick.md
+++ b/docs/en/product_documents/m5stack-core/minicore_stick.md
@@ -1,6 +1,6 @@
 # M5Stick
 
-[中文](/en/product_documents/m5stack-core/minicore_stick) | English | [日本語](ja/product_documents/m5stack-core/minicore_stick)
+[中文](/zh_CN/product_documents/m5stack-core/minicore_stick) | English | [日本語](ja/product_documents/m5stack-core/minicore_stick)
 
 ## DESCRIPTION
 
diff --git a/docs/en/product_documents/modules/module_gps.md b/docs/en/product_documents/modules/module_gps.md
index 29046a22..59ea1675 100644
--- a/docs/en/product_documents/modules/module_gps.md
+++ b/docs/en/product_documents/modules/module_gps.md
@@ -38,16 +38,16 @@ global positioning information even you in the wild and get lost.
 
 -  **GitHub** - [Arduino GitHub](https://github.com/m5stack/M5Stack)
 
-- **[Purchase](https://www.aliexpress.com/store/product/M5Stack-New-Arrival-LAN-Module-with-W5500-Chip-LanProto-Ethernet-convert-Network-Module-Microcontroller-for-Arduino/3226069_32904089417.html)**
+- **[Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-Stock-Offer-GPS-Module-with-Internal-External-Antenna-MCX-Interface-IoT-Development-Board-for/3226069_32840757048.html?spm=2114.12010615.8148356.2.7c6c2743BZthY3)**
 
 <figure>
-    <img src="assets/img/product_pics/modules/gps_01.jpg" height="300" width="300">
+  <img src="assets/img/product_pics/modules/gps_01.jpg" alt="gps_01" width="500px" height="500px">
 </figure>
 
 <figure>
-    <img src="assets/img/product_pics/modules/gps_02.jpg" height="300" width="300">
+  <img src="assets/img/product_pics/modules/gps_02.jpg" alt="gps_02" width="500px" height="500px">
 </figure>
 
 <figure>
-    <img src="assets/img/product_pics/modules/gps_03.jpg" height="300" width="300">
+  <img src="assets/img/product_pics/modules/gps_05.jpg" alt="gps_05" width="500px" height="500px">
 </figure>
diff --git a/docs/en/product_documents/modules/module_lan.md b/docs/en/product_documents/modules/module_lan.md
index 511ba1d2..c64cb484 100644
--- a/docs/en/product_documents/modules/module_lan.md
+++ b/docs/en/product_documents/modules/module_lan.md
@@ -1,6 +1,6 @@
 # M5Stack LAN Module
 
-<!-- [中文](/zh_CN/product_documents/modules/module_btc) | English | [日本語](ja/product_documents/modules/module_btc) -->
+<!-- <!-- [中文](/zh_CN/product_documents/modules/module_) | English | [日本語](ja/product_documents/modules/module_) --> -->
 
 ## DESCRIPTION
 
diff --git a/docs/ja/product_documents/modules/module_gps.md b/docs/ja/product_documents/modules/module_gps.md
index eb51175c..6e1505cf 100644
--- a/docs/ja/product_documents/modules/module_gps.md
+++ b/docs/ja/product_documents/modules/module_gps.md
@@ -38,22 +38,16 @@
   - [M5Stack](https://github.com/m5stack/M5Stack)
 
 <figure>
-  <img src="assets/img/product_pics/modules/gps_01.jpg" alt="gps_01" width="300px" height="300px">
+  <img src="assets/img/product_pics/modules/gps_01.jpg" alt="gps_01" width="500px" height="500px">
 </figure>
 <figure>
-  <img src="assets/img/product_pics/modules/gps_02.jpg" alt="gps_02" width="300px" height="300px">
+  <img src="assets/img/product_pics/modules/gps_02.jpg" alt="gps_02" width="500px" height="500px">
 </figure>
 <figure>
-  <img src="assets/img/product_pics/modules/gps_03.jpg" alt="gps_03" width="300px" height="300px">
-</figure>
-<figure>
-  <img src="assets/img/product_pics/modules/gps_04.jpg" alt="gps_04" width="300px" height="300px">
-</figure>
-<figure>
-  <img src="assets/img/product_pics/modules/gps_05.jpg" alt="gps_05" width="300px" height="300px">
+  <img src="assets/img/product_pics/modules/gps_05.jpg" alt="gps_05" width="500px" height="500px">
 </figure>
 
 ## 関連情報
 
 - [GPS モジュール　購入(スイッチサイエンス)](https://www.switch-science.com/catalog/3861/)
-- [GPS モジュール　購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-gps-mcx-iot-arduino-ESP32/3226069_32840757048.html)
\ No newline at end of file
+- [GPS モジュール　購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-Official-Stock-Offer-GPS-Module-with-Internal-External-Antenna-MCX-Interface-IoT-Development-Board-for/3226069_32840757048.html?spm=2114.12010615.8148356.2.7c6c2743BZthY3)
\ No newline at end of file
diff --git a/docs/zh_CN/product_documents/modules/module_gps.md b/docs/zh_CN/product_documents/modules/module_gps.md
index 46de4b34..bea0a856 100644
--- a/docs/zh_CN/product_documents/modules/module_gps.md
+++ b/docs/zh_CN/product_documents/modules/module_gps.md
@@ -31,4 +31,16 @@ GPS 模块是一款内置了GPS小模组的M5Stack系列可堆叠模块。内置
 
 -  **[GPS Info](https://www.u-blox.com/zh/product/neo-m8-series)** (GPS)
 
-- **[购买链接](https://www.aliexpress.com/store/product/M5Stack-New-Arrival-LAN-Module-with-W5500-Chip-LanProto-Ethernet-convert-Network-Module-Microcontroller-for-Arduino/3226069_32904089417.html)**
+- **[购买链接](https://www.aliexpress.com/store/product/M5Stack-Official-Stock-Offer-GPS-Module-with-Internal-External-Antenna-MCX-Interface-IoT-Development-Board-for/3226069_32840757048.html?spm=2114.12010615.8148356.2.7c6c2743BZthY3)**
+
+<figure>
+  <img src="assets/img/product_pics/modules/gps_01.jpg" alt="gps_01" width="500px" height="500px">
+</figure>
+
+<figure>
+  <img src="assets/img/product_pics/modules/gps_02.jpg" alt="gps_02" width="500px" height="500px">
+</figure>
+
+<figure>
+  <img src="assets/img/product_pics/modules/gps_05.jpg" alt="gps_05" width="500px" height="500px">
+</figure>
\ No newline at end of file
diff --git a/docs/zh_CN/product_documents/units/unit_396port.md b/docs/zh_CN/product_documents/units/unit_396port.md
index e75b8832..6b5efc37 100644
--- a/docs/zh_CN/product_documents/units/unit_396port.md
+++ b/docs/zh_CN/product_documents/units/unit_396port.md
@@ -1,7 +1,6 @@
 # Unit 3.96port
 
-中文 | [English](/en/product_documents/tools/unit_396port)
-<!-- | [日本語](ja/product_documents/tools/unit_396port) -->
+中文 | [English](/en/product_documents/tools/unit_396port) | [日本語](ja/product_documents/tools/unit_396port)
 
 ## 描述
 
@@ -15,7 +14,7 @@
 ## 文档
 
 - **[原理图](https://github.com/m5stack/M5-Schematic/blob/master/Units/UNIT_2TO396.pdf)**
-- **[旗舰店](https://www.aliexpress.com/store/3226069?spm=2114.search0104.3.5.66051a4dlpB2ti)**
+- **[旗舰店](https://www.aliexpress.com/store/product/M5Stack-Official-3-96-4Pin-Transfer-Module-Grove-Compatible-with-M5GO-FIRE-ESP32-Development-Kit/3226069_32922623759.html?spm=2114.12010612.8148356.28.7924724db93871)**
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_3.96.jpg" height="300" width="300">
diff --git a/docs/zh_CN/product_documents/units/unit_adc.md b/docs/zh_CN/product_documents/units/unit_adc.md
index c217107a..90dbd193 100644
--- a/docs/zh_CN/product_documents/units/unit_adc.md
+++ b/docs/zh_CN/product_documents/units/unit_adc.md
@@ -1,7 +1,6 @@
 # Unit ADC
 
-中文 | [English](/en/product_documents/units/unit_adc)
-<!-- | [日本語](ja/product_documents/units/unit_adc) -->
+中文 | [English](/en/product_documents/units/unit_adc) | [日本語](ja/product_documents/units/unit_adc)
 
 
 ## 描述 DESCRIPTION
diff --git a/docs/zh_CN/product_documents/units/unit_angle.md b/docs/zh_CN/product_documents/units/unit_angle.md
index c2730dbd..7ec123f5 100644
--- a/docs/zh_CN/product_documents/units/unit_angle.md
+++ b/docs/zh_CN/product_documents/units/unit_angle.md
@@ -1,5 +1,7 @@
 # Unit ANGLE
 
+中文 | [English](/en/product_documents/units/unit_angle) | [日本語](ja/product_documents/units/unit_angle)
+
 ## DESCRIPTION
 
 ANGLE是一个电位器Unit，通过这个Unit可以检测手动旋转的角度.
diff --git a/docs/zh_CN/product_documents/units/unit_button.md b/docs/zh_CN/product_documents/units/unit_button.md
index ad4de5e6..40f25680 100644
--- a/docs/zh_CN/product_documents/units/unit_button.md
+++ b/docs/zh_CN/product_documents/units/unit_button.md
@@ -1,5 +1,7 @@
 # Unit BUTTON
 
+中文 | [English](/en/product_documents/units/unit_button) | [日本語](ja/product_documents/units/unit_button)
+
 ## 描述
 
 BUTTON是一个单按键unit，这个Unit能检测你是否按下了.
diff --git a/docs/zh_CN/product_documents/units/unit_color_sensor.md b/docs/zh_CN/product_documents/units/unit_color_sensor.md
index f95003fa..a5ccf5bb 100644
--- a/docs/zh_CN/product_documents/units/unit_color_sensor.md
+++ b/docs/zh_CN/product_documents/units/unit_color_sensor.md
@@ -1,5 +1,7 @@
 # Unit COLOR
 
+中文 | [English](/en/product_documents/units/unit_color) | [日本語](ja/product_documents/units/unit_color)
+
 ## 描述
 
 Color是一个颜色传感器. 通过GROVE接口(I2C)与M5Core相连，能够识别物体表面颜色，它内置了颜色传感器芯片TCS3472.
diff --git a/docs/zh_CN/product_documents/units/unit_dac.md b/docs/zh_CN/product_documents/units/unit_dac.md
index c98fc659..edb10e10 100644
--- a/docs/zh_CN/product_documents/units/unit_dac.md
+++ b/docs/zh_CN/product_documents/units/unit_dac.md
@@ -1,5 +1,7 @@
 # Unit ADC
 
+中文 | [English](/en/product_documents/units/unit_dac) | [日本語](ja/product_documents/units/unit_dac)
+
 ## DESCRIPTION
 
 This is a unit can convert digital signal to analog signal like voltage waveform, audio waveform and so on. It integrates a 12-bit high resolution DAC chip named MCP4725 which integrates a on-board non-volatile memory (EEPROM). The unit comunicates with M5Core with I2C. The DAC input and configuration data can be programmed to the EEPROM.
diff --git a/docs/zh_CN/product_documents/units/unit_dual_button.md b/docs/zh_CN/product_documents/units/unit_dual_button.md
index ea914f6f..6274f8a7 100644
--- a/docs/zh_CN/product_documents/units/unit_dual_button.md
+++ b/docs/zh_CN/product_documents/units/unit_dual_button.md
@@ -1,5 +1,7 @@
 # Unit Dual BUTTON
 
+中文 | [English](/en/product_documents/units/unit_dual_button) | [日本語](ja/product_documents/units/unit_dual_button)
+
 ## DESCRIPTION
 
 This Unit is a dual-button unit that can be detected whether a single button pressed or two buttons pressed
diff --git a/docs/zh_CN/product_documents/units/unit_env.md b/docs/zh_CN/product_documents/units/unit_env.md
index d3c8e108..2de52924 100644
--- a/docs/zh_CN/product_documents/units/unit_env.md
+++ b/docs/zh_CN/product_documents/units/unit_env.md
@@ -1,5 +1,7 @@
 # Unit ENV
 
+中文 | [English](/en/product_documents/units/unit_env) | [日本語](ja/product_documents/units/unit_env)
+
 ## DESCRIPTION
 
 The Unit ENV is a environment sensor for M5GO that can easily detect
diff --git a/docs/zh_CN/product_documents/units/unit_esp32cam.md b/docs/zh_CN/product_documents/units/unit_esp32cam.md
index b2868acd..bd64012a 100644
--- a/docs/zh_CN/product_documents/units/unit_esp32cam.md
+++ b/docs/zh_CN/product_documents/units/unit_esp32cam.md
@@ -1,5 +1,7 @@
 # ESP32Cam
 
+中文 | [English](/en/product_documents/units/unit_esp32cam) | [日本語](ja/product_documents/units/unit_esp32cam)
+
 ## DESCRIPTION
 
 The **<mark>ESP32Cam</mark>** is a tiny unit based on ESP32 chip and OV2640. You can even program it through Arduino IDE.
diff --git a/docs/zh_CN/product_documents/units/unit_hub.md b/docs/zh_CN/product_documents/units/unit_hub.md
index 4cf0acb1..2f3f2984 100644
--- a/docs/zh_CN/product_documents/units/unit_hub.md
+++ b/docs/zh_CN/product_documents/units/unit_hub.md
@@ -1,5 +1,7 @@
 # Unit HUB
 
+中文 | [English](/en/product_documents/units/unit_hub) | [日本語](ja/product_documents/units/unit_hub)
+
 ## DESCRIPTION
 
 The Unit HUB is a module for M5GO to expand GROVE port added three GROVE
diff --git a/docs/zh_CN/product_documents/units/unit_ir.md b/docs/zh_CN/product_documents/units/unit_ir.md
index d5e16911..fd61efc4 100644
--- a/docs/zh_CN/product_documents/units/unit_ir.md
+++ b/docs/zh_CN/product_documents/units/unit_ir.md
@@ -1,5 +1,7 @@
 # Unit IR
 
+中文 | [English](/en/product_documents/units/unit_ir) | [日本語](ja/product_documents/units/unit_ir)
+
 ## DESCRIPTION
 
 The Unit IR is a IR infrared obstacle avoidance sensor. It can
diff --git a/docs/zh_CN/product_documents/units/unit_joystick.md b/docs/zh_CN/product_documents/units/unit_joystick.md
index 576826ab..ae3cb616 100644
--- a/docs/zh_CN/product_documents/units/unit_joystick.md
+++ b/docs/zh_CN/product_documents/units/unit_joystick.md
@@ -1,5 +1,7 @@
 # Unit JOYSTICK
 
+中文 | [English](/en/product_documents/units/unit_joystick) | [日本語](ja/product_documents/units/unit_joystick)
+
 ## DESCRIPTION
 
 This Unit is a joystick unit the same as game controller button that can be detected the X-Y axis offset and whether the joystick be pressed
diff --git a/docs/zh_CN/product_documents/units/unit_light.md b/docs/zh_CN/product_documents/units/unit_light.md
index 848962d0..c3f0cf5f 100644
--- a/docs/zh_CN/product_documents/units/unit_light.md
+++ b/docs/zh_CN/product_documents/units/unit_light.md
@@ -1,5 +1,7 @@
 # Unit light
 
+中文 | [English](/en/product_documents/units/unit_light) | [日本語](ja/product_documents/units/unit_light)
+
 ## DESCRIPTION
 
 The Unit light is a light sensor unit with an adjustable resistor that can detect the environmental light intensity.
diff --git a/docs/zh_CN/product_documents/units/unit_m5camera.md b/docs/zh_CN/product_documents/units/unit_m5camera.md
index 05f2b122..4484014c 100644
--- a/docs/zh_CN/product_documents/units/unit_m5camera.md
+++ b/docs/zh_CN/product_documents/units/unit_m5camera.md
@@ -1,5 +1,7 @@
 # M5Camera
 
+中文 | [English](/en/product_documents/units/unit_m5camera) | [日本語](ja/product_documents/units/unit_m5camera)
+
 ## DESCRIPTION
 
 The **<mark>M5Camera</mark>** is a tiny unit based on ESP32 chip and OV2640 <mark>including PSRAM</mark>. You can even program it through Arduino IDE.
diff --git a/docs/zh_CN/product_documents/units/unit_makey.md b/docs/zh_CN/product_documents/units/unit_makey.md
index 31a78b33..d7dd243b 100644
--- a/docs/zh_CN/product_documents/units/unit_makey.md
+++ b/docs/zh_CN/product_documents/units/unit_makey.md
@@ -1,5 +1,7 @@
 # Unit makey
 
+中文 | [English](/en/product_documents/units/unit_makey) | [日本語](ja/product_documents/units/unit_makey)
+
 ## DESCRIPTION
 
 The Unit makey is a makey unit with 16 touchable pins.The Unit makey is based on Arduino Uno Mega328p chip.It communicates with M5Stack Core via GROVE(I2C).It's I2C address is 0x51.
diff --git a/docs/zh_CN/product_documents/units/unit_moisture.md b/docs/zh_CN/product_documents/units/unit_moisture.md
index 1ef412ba..f5aa5ca3 100644
--- a/docs/zh_CN/product_documents/units/unit_moisture.md
+++ b/docs/zh_CN/product_documents/units/unit_moisture.md
@@ -1,5 +1,7 @@
 # Unit moisture
 
+中文 | [English](/en/product_documents/units/unit_moisture) | [日本語](ja/product_documents/units/unit_moisture)
+
 ## DESCRIPTION
 
 The Unit moisture is a moisture detective unit for measuring the moisture in soil. The soil moisture sensor is pretty straight forward to use. The two large exp osed pads function as probes for the sensor, together acting as a variable resistor. The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
diff --git a/docs/zh_CN/product_documents/units/unit_ncir.md b/docs/zh_CN/product_documents/units/unit_ncir.md
index 54b59dc5..b145255e 100644
--- a/docs/zh_CN/product_documents/units/unit_ncir.md
+++ b/docs/zh_CN/product_documents/units/unit_ncir.md
@@ -1,5 +1,7 @@
 # Unit NCIR
 
+中文 | [English](/en/product_documents/units/unit_ncir) | [日本語](ja/product_documents/units/unit_ncir)
+
 ## DESCRIPTION
 
 This is a unit can measure body temperature or be applicated for movement detection which integrates MLX90641 (an infrared thermometer designed for non-contact temperature sensing). The unit comunicates with M5Core with I2C.
diff --git a/docs/zh_CN/product_documents/units/unit_neopixel.md b/docs/zh_CN/product_documents/units/unit_neopixel.md
index 5e264843..032f2ad0 100644
--- a/docs/zh_CN/product_documents/units/unit_neopixel.md
+++ b/docs/zh_CN/product_documents/units/unit_neopixel.md
@@ -1,5 +1,7 @@
 # Unit NeoPixel
 
+中文 | [English](/en/product_documents/units/unit_neopixel) | [日本語](ja/product_documents/units/unit_neopixel)
+
 ## DESCRIPTION
 
 This is a RGB LED Cable unit. You can program it using NeoPixel Lib supported by Adafruit or using M5Flow that will be easier. The unit comunicates with M5Core with GROVE Interface.
diff --git a/docs/zh_CN/product_documents/units/unit_pir.md b/docs/zh_CN/product_documents/units/unit_pir.md
index dcb6c793..c16e8116 100644
--- a/docs/zh_CN/product_documents/units/unit_pir.md
+++ b/docs/zh_CN/product_documents/units/unit_pir.md
@@ -1,5 +1,7 @@
 # Unit PIR
 
+中文 | [English](/en/product_documents/units/unit_pir) | [日本語](ja/product_documents/units/unit_pir)
+
 ## DESCRIPTION
 
 The Unit PIR is a human infrared sensor for M5GO that can easily detect
diff --git a/docs/zh_CN/product_documents/units/unit_proto.md b/docs/zh_CN/product_documents/units/unit_proto.md
index 83f71d03..08c97ddb 100644
--- a/docs/zh_CN/product_documents/units/unit_proto.md
+++ b/docs/zh_CN/product_documents/units/unit_proto.md
@@ -1,5 +1,7 @@
 # Unit proto
 
+中文 | [English](/en/product_documents/units/unit_proto) | [日本語](ja/product_documents/units/unit_proto)
+
 ## DESCRIPTION
 
 The M5Stack proto unit is a flexible blank circle with 100mil pitch of holes. You can create any circle
diff --git a/docs/zh_CN/product_documents/units/unit_relay.md b/docs/zh_CN/product_documents/units/unit_relay.md
index 3ffecf9a..7d0a5177 100644
--- a/docs/zh_CN/product_documents/units/unit_relay.md
+++ b/docs/zh_CN/product_documents/units/unit_relay.md
@@ -1,27 +1,29 @@
 # Unit relay
 
-## DESCRIPTION
+中文 | [English](/en/product_documents/units/unit_relay) | [日本語](ja/product_documents/units/unit_relay)
 
-The Unit relay is a unit that allows you to control large power loads with a light-current, safe, reliable power control system. the large power loads you can safely control is up to 24 VDC or 120 VAC.
+## 描述
+
+<mark>RELAY</mark>是一款继电器Unit，通过该Unit可以安全地用弱电控制强电，用M5Core或者手机来控制家里的电视、空调、冰箱等大功率电器。is a unit that allows you to control large power loads with a light-current, safe, reliable power control system. the large power loads you can safely control is up to 24 VDC or 120 VAC.
 Only a low electrial level is sent to this unit, the relay will be close and the large power loads you want to control will be working.
 
 
-## FEATURES
+## 特性
 -  A single input
 -  Up to 3A @ 24 VDC or 120 VAC
--  GROVE interface
--  Two Lego installation holes
+-  GROVE接口，支持[M5Flow](http://flow.m5stack.com)编程，[Arduino](http://www.arduino.cc)编程
+-  Unit内置两个Lego插件孔，方便与Lego件结合
 
-## APPLICATION
+## 应用
 
 -  Be perfect for large inductive loads(like DC motors electrocircuit, intelligent interpolation...)
 -  Control a standard wall outlet device
 
-## DOCUMENTS
+## 相关链接
 
--  **Example** - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/Relay)
-- **[Schematic](https://github.com/m5stack/M5-Schematic/blob/master/Units/UNIT_RELAY.pdf)**
--  **[Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-Mini-Relay-Unit-DC-3A-30V-AC-3A-220V-with-Triode-Driven-GROVE-Port/3226069_32922856211.html?spm=a2g1y.12024536.productList_5885013.subject_24)**
+-  **例程** - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/Relay)
+- **[原理图](https://github.com/m5stack/M5-Schematic/blob/master/Units/UNIT_RELAY.pdf)**
+-  **[购买链接](https://www.aliexpress.com/store/product/M5Stack-Official-Mini-Relay-Unit-DC-3A-30V-AC-3A-220V-with-Triode-Driven-GROVE-Port/3226069_32922856211.html?spm=a2g1y.12024536.productList_5885013.subject_24)**
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_relay.png" height="300" width="300">
diff --git a/docs/zh_CN/product_documents/units/unit_rgb.md b/docs/zh_CN/product_documents/units/unit_rgb.md
index 53bf912c..05377eda 100644
--- a/docs/zh_CN/product_documents/units/unit_rgb.md
+++ b/docs/zh_CN/product_documents/units/unit_rgb.md
@@ -1,18 +1,19 @@
 # Unit RGB
 
-## DESCRIPTION
+中文 | [English](/en/product_documents/units/unit_rgb) | [日本語](ja/product_documents/units/unit_rgb)
 
-The Unit RGB is a sensor including three RGB LED lights and two GROVE
-ports.You can display specified color using M5GO Core through Blockly,
-Arduino or MicroPython.
+## 描述
 
-## FEATURES
+<mark>RGB</mark>是一款集成3颗RGB Led的Unit，可以方便显示多彩颜色。一个Unit分别有IN口和OUT口，所以多个Unit可以通过GRVE线串联起来。
 
--  Two Lego installation holes
+## 特性
 
-## DOCUMENTS
+-  GROVE接口，支持[M5Flow](http://flow.m5stack.com)编程，[Arduino](http://www.arduino.cc)编程
+-  Unit内置两个Lego插件孔，方便与Lego件结合
 
-- **[Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-Mini-RGB-Unit-with-NeoPixel-RGB-LED-Light-x3-GPIO-GROVE-Connector/3226069_32929809133.html?spm=a2g1y.12024536.productList_5885013.subject_21)**
+## 相关链接
+
+- **[购买链接](https://www.aliexpress.com/store/product/M5Stack-Official-Mini-RGB-Unit-with-NeoPixel-RGB-LED-Light-x3-GPIO-GROVE-Connector/3226069_32929809133.html?spm=a2g1y.12024536.productList_5885013.subject_21)**
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_rgb.png">
diff --git a/docs/zh_CN/product_documents/units/unit_thermal.md b/docs/zh_CN/product_documents/units/unit_thermal.md
index 4584ddf0..388c7421 100644
--- a/docs/zh_CN/product_documents/units/unit_thermal.md
+++ b/docs/zh_CN/product_documents/units/unit_thermal.md
@@ -1,33 +1,36 @@
 # Unit thermal
 
-## DESCRIPTION
+中文 | [English](/en/product_documents/units/unit_thermal) | [日本語](ja/product_documents/units/unit_thermal)
 
-The Unit thermal is a thermal camera module contains thermopile sensors named MLX90640. the MLX90640 contains a 32x64 piexls IR array. It communicates with M5GO Core via GROVE which actually is a I2C interfacel.
-As the images show you can detect surface temperatures from many feet away with an accuracy of ±1.5°C (best case).
-After burn the firmware of the module's demostatrion to M5GO Core via `M5Burner`, the module will be running. Then you can program it via Arduino IDE.
+## 描述
+
+<mark>Thermal</mark>是一款内置热电堆传感器(一种热释红外传感器，型号MLX90640)的Unit，可以用了测量物体表面温度，并由各个表面温度不同组成的温度梯度而形成热成像图。MLX90640的像素是32x64。
+
+该Unit同样与M5Core通过PORT A(I2C)接口通信。
+
+使用该Unit可以方便的测量各个物体表面温度(正常误差±1.5°C)
 
 
-## FEATURES
+## 特性
 
--  32x24 piexls
--  Target temperature -40°C ÷ 300°C
--  GROVE interface
--  Two Lego installation holes
+-  32x24像素
+-  目标温度：-40°C ÷ 300°C
+-  GROVE接口，支持[M5Flow](http://flow.m5stack.com)编程，[Arduino](http://www.arduino.cc)编程
+-  Unit内置两个Lego插件孔，方便与Lego件结合
 
-## APPLICATION
+## 应用
 
--  High precision non-contact temperature measurements
--  Intrusion / Movement detection
--  Visual IR thermometers
--  Temperature sensing element for intelligent building air conditioning
+-  高精度的非接触性测温器
+-  生物移动检测
+-  可视化红外成像
 
-## DOCUMENTS
+## 相关链接
 
--  **Example** - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Modules/MLX90640) - [MLX90640 Drive](https://github.com/melexis/mlx90640-library)
+-  **例程** - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Modules/MLX90640) - [MLX90640 Drive](https://github.com/melexis/mlx90640-library)
 
--  **Datasheet** - [MLX90640](https://www.melexis.com/-/media/files/documents/datasheets/mlx90640-datasheet-melexis.pdf)
-- **[Schematic](https://github.com/m5stack/M5-Schematic/blob/master/Units/UNIT_THERMAL.pdf)**
--  **[Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-New-Thermal-Camera-MLX90640-with-GROVE-I2C-Compatible-M5GO-FIRE-ESP32-Kit-Mini-Development/3226069_32918177644.html?spm=2114.12010615.8148356.2.4ad0717733LM7H)**
+-  **数据手册** - [MLX90640](https://www.melexis.com/-/media/files/documents/datasheets/mlx90640-datasheet-melexis.pdf)
+- **[原理图](https://github.com/m5stack/M5-Schematic/blob/master/Units/UNIT_THERMAL.pdf)**
+-  **[购买链接](https://www.aliexpress.com/store/product/M5Stack-Official-New-Thermal-Camera-MLX90640-with-GROVE-I2C-Compatible-M5GO-FIRE-ESP32-Kit-Mini-Development/3226069_32918177644.html?spm=2114.12010615.8148356.2.4ad0717733LM7H)**
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_thermal.png" height="300" width="300">
diff --git a/docs/zh_CN/product_documents/units/unit_tof.md b/docs/zh_CN/product_documents/units/unit_tof.md
index 20c06858..465d4678 100644
--- a/docs/zh_CN/product_documents/units/unit_tof.md
+++ b/docs/zh_CN/product_documents/units/unit_tof.md
@@ -1,28 +1,29 @@
 # Unit ToF
 
-## DESCRIPTION
+中文 | [English](/en/product_documents/units/unit_tof) | [日本語](ja/product_documents/units/unit_tof)
 
-This is a unit can detect distance using a newest "Time-to-Flight" sensor using laser light. It is higher precision than most distance sensors. The unit comunicates with M5Core with I2C.
+## 描述
 
-## FEATURES
+<mark>ToF</mark>是一款用"Time-to-Flight"传感器来测量距离的Unit，相比其他测距传感器，具有更高的精度。
 
--  High precision
--  Measure absolute distances up to 2m
--  Two Lego installation holes
+该Unit与M5Core通过PORT A(I2C)通信。
 
-## APPLICATION
+## 特性
 
--  1D gesture recognition
+-  高精度
+-  测量距离最大2m
+-  GROVE接口，支持[M5Flow](http://flow.m5stack.com)编程，[Arduino](http://www.arduino.cc)编程
+-  Unit内置两个Lego插件孔，方便与Lego件结合
 
-## DOCUMENTS
+## 相关链接
 
--  **Example** - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/TOF_VL53L0X)
+-  **例程** - [Arduino](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/TOF_VL53L0X)
 
--  **Datasheet** - [VL53L0X](https://pdf1.alldatasheet.com/datasheet-pdf/view/948120/STMICROELECTRONICS/VL53L0X.html)
+-  **数据手册** - [VL53L0X](https://pdf1.alldatasheet.com/datasheet-pdf/view/948120/STMICROELECTRONICS/VL53L0X.html)
 
--  **[Schematic](zh_CN/file_to_display_null)**
+<!-- -  **[Schematic](zh_CN/file_to_display_null)** -->
 
--  **[Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-ToF-Unit-VL53L0X-Time-of-Flight-ToF-Laser-Ranging-Sensor-Breakout-Laser-Distance-Sensor/3226069_32949310300.html?spm=a2g1x.12024536.productList_5885013.pic_3)**
+-  **[购买链接](https://www.aliexpress.com/store/product/M5Stack-Official-ToF-Unit-VL53L0X-Time-of-Flight-ToF-Laser-Ranging-Sensor-Breakout-Laser-Distance-Sensor/3226069_32949310300.html?spm=a2g1x.12024536.productList_5885013.pic_3)**
 
 <figure>
     <img src="assets/img/product_pics/units/M5GO_Unit_tof.png" height="300" width="300">