diff --git a/docs/assets/img/product_pics/units/M5GO_Unit_joystick_01.jpg b/docs/assets/img/product_pics/units/M5GO_Unit_joystick_01.jpg
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diff --git a/docs/assets/img/product_pics/units/M5GO_Unit_joystick_2.png b/docs/assets/img/product_pics/units/M5GO_Unit_joystick_02.png
similarity index 100%
rename from docs/assets/img/product_pics/units/M5GO_Unit_joystick_2.png
rename to docs/assets/img/product_pics/units/M5GO_Unit_joystick_02.png
diff --git a/docs/assets/img/product_pics/units/M5GO_Unit_joystick_3.png b/docs/assets/img/product_pics/units/M5GO_Unit_joystick_03.png
similarity index 100%
rename from docs/assets/img/product_pics/units/M5GO_Unit_joystick_3.png
rename to docs/assets/img/product_pics/units/M5GO_Unit_joystick_03.png
diff --git a/docs/assets/img/product_pics/units/unit_example/COLOR/example_unit_color_result_01.png b/docs/assets/img/product_pics/units/unit_example/COLOR/example_unit_color_result_01.png
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diff --git a/docs/index.html b/docs/index.html
index 51d76f5e..3690ef02 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -1,6 +1,5 @@
-
diff --git a/docs/zh_CN/product_documents/units/unit_adc.md b/docs/zh_CN/product_documents/units/unit_adc.md
index 1d84740e..bbcc967b 100644
--- a/docs/zh_CN/product_documents/units/unit_adc.md
+++ b/docs/zh_CN/product_documents/units/unit_adc.md
@@ -8,7 +8,7 @@
## 描述
-这是带自校准功能的16位模拟数字转换unit,相比ESP32芯片自带的ADC(12位)功能分辨率高了不少,意味着你可以测量更小幅值的电压等模拟量,也就是能测量更细微一倍的模拟量,比如采集心电电压做心电监护项目、做血压监测项目、高精度电压监控项目等等。unit集成的ADC芯片通过I2C接口与M5的主控通讯,可以设置成单周期转换和连续转换方式。
+这是带自校准功能的16位模拟数字转换unit,相比ESP32芯片自带的ADC(12位)功能分辨率高了不少,意味着你可以测量更小幅值的电压等模拟量,也就是能测量更细微一倍的模拟量,比如采集心电电压做心电监护项目、做血压监测项目、高精度电压监控项目等等。unit集成的ADC芯片通过I2C接口与M5的主控通讯(I2C地址为0x48),可以设置成单周期转换和连续转换方式。
## 特性
@@ -34,22 +34,21 @@
## 例程
-
diff --git a/docs/zh_CN/product_documents/units/unit_color.md b/docs/zh_CN/product_documents/units/unit_color.md
index 542a8565..37326aaa 100644
--- a/docs/zh_CN/product_documents/units/unit_color.md
+++ b/docs/zh_CN/product_documents/units/unit_color.md
@@ -31,24 +31,29 @@ Color是一个颜色传感器. 通过GROVE接口(I2C)与M5Core相连,能够识
## 例程
-
+具体例程请点击[这里](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Units/COLOR/UIFlow)。 -->
## 原理图
diff --git a/docs/zh_CN/product_documents/units/unit_dac.md b/docs/zh_CN/product_documents/units/unit_dac.md
index b73148d9..c2198f26 100644
--- a/docs/zh_CN/product_documents/units/unit_dac.md
+++ b/docs/zh_CN/product_documents/units/unit_dac.md
@@ -32,22 +32,48 @@
## 例程
-
+
+
### 2. UIFlow
-
+
diff --git a/docs/zh_CN/product_documents/units/unit_earth.md b/docs/zh_CN/product_documents/units/unit_earth.md
index 74cc8a9b..f387dfc3 100644
--- a/docs/zh_CN/product_documents/units/unit_earth.md
+++ b/docs/zh_CN/product_documents/units/unit_earth.md
@@ -29,16 +29,15 @@ Unit可以输出0/1的数字信号,也可以直接输出被测物体反映的
### 1. Arduino IDE
-
+具体例程请点击[这里](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Units/EARTH/Arduino)。
### 2. UIFlow
@@ -54,5 +53,5 @@ float pressure = bme.readPressure();//pressure
| M5Core(GROVE B) | GPIO36 | GPIO26 | 5V | GND |
- | EARTH Unit | GPIO36 | GPIO26 | 5V | GND |
+ | EARTH Unit | Ain | Din | 5V | GND |
\ No newline at end of file
diff --git a/docs/zh_CN/product_documents/units/unit_joystick.md b/docs/zh_CN/product_documents/units/unit_joystick.md
index 078ab445..20870987 100644
--- a/docs/zh_CN/product_documents/units/unit_joystick.md
+++ b/docs/zh_CN/product_documents/units/unit_joystick.md
@@ -1,6 +1,8 @@
# JOYSTICK - 摇杆Unit
-
+

+
+
***
@@ -29,16 +31,22 @@ Joystick Unit同样也是与M5Core相连之后,通过PORT A(I2C)控制,其I2
### 1. Arduino IDE
-
+具体例程请点击[这里](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Units/JOYSTICK/Arduino)。
### 2. UIFlow
diff --git a/docs/zh_CN/product_documents/units/unit_light.md b/docs/zh_CN/product_documents/units/unit_light.md
index ecf20eae..b357047b 100644
--- a/docs/zh_CN/product_documents/units/unit_light.md
+++ b/docs/zh_CN/product_documents/units/unit_light.md
@@ -27,16 +27,15 @@
### 1. Arduino IDE
-
+具体例程请点击[这里](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Units/LIGHT/Arduino)。
### 2. UIFlow
@@ -52,5 +51,5 @@ float pressure = bme.readPressure();//pressure
| M5Core(GROVE B) | GPIO36 | GPIO26 | 5V | GND |
- | LIGHT Unit | GPIO36 | GPIO26 | 5V | GND |
+ | LIGHT Unit | Ain | Din | 5V | GND |
\ No newline at end of file
diff --git a/docs/zh_CN/product_documents/units/unit_tof.md b/docs/zh_CN/product_documents/units/unit_tof.md
index 25b9b5e3..65dc32db 100644
--- a/docs/zh_CN/product_documents/units/unit_tof.md
+++ b/docs/zh_CN/product_documents/units/unit_tof.md
@@ -8,17 +8,28 @@
## 描述
-ToF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。
+ToF是一款用"Time-to-Flight"传感器(VL53L0X)发出940nm的激光来测量距离的Unit,相比其他测距传感器,具有更高的精度,可以直接确定以毫米为单位的目标物体的距离。不到30ms即可提供最长2米的毫米级的绝对距离读值。
-该Unit与M5Core通过PORT A(I2C)通信。
+该Unit与M5Core通过PORT A(I2C)通信。I2C地址为0x29
## 特性
- 高精度
- 测量距离最大2m
+- 激光波长: 940nm
- GROVE接口,支持[UiFlow](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
+## 应用
+
+- 手势控制
+
+- 激光测距
+
+- 3D结构光成像(3D感测)
+
+- 摄像机辅助(超快速自动对焦和景深图)
+
## 相关链接
- **[官方频道视频](https://i.youku.com/i/UNjE1ODA2MzE0OA==?spm=a2hzp.8253869.0.0)**
@@ -29,11 +40,10 @@
## 例程
-