diff --git a/docs/assets/img/product_pics/module/gsm/NanoSIM.jpeg b/docs/assets/img/product_pics/module/gsm/NanoSIM.jpeg
new file mode 100644
index 00000000..579d6db9
Binary files /dev/null and b/docs/assets/img/product_pics/module/gsm/NanoSIM.jpeg differ
diff --git a/docs/assets/img/product_pics/module/lte/NanoSIM.jpeg b/docs/assets/img/product_pics/module/lte/NanoSIM.jpeg
new file mode 100644
index 00000000..579d6db9
Binary files /dev/null and b/docs/assets/img/product_pics/module/lte/NanoSIM.jpeg differ
diff --git a/docs/assets/img/product_pics/module/nb-iot/NanoSIM.jpeg b/docs/assets/img/product_pics/module/nb-iot/NanoSIM.jpeg
new file mode 100644
index 00000000..579d6db9
Binary files /dev/null and b/docs/assets/img/product_pics/module/nb-iot/NanoSIM.jpeg differ
diff --git a/docs/en/module/gsm.md b/docs/en/module/gsm.md
index e6beee2b..b5d4ee84 100644
--- a/docs/en/module/gsm.md
+++ b/docs/en/module/gsm.md
@@ -24,7 +24,7 @@ Power Operation:
 - Power Off: Button long-press for 8s
 - Reset module: GPIO26 HIGH
 
-<img src="assets/img/product_pics/module/gsm/gsm_03.jpg" width="50%" height="50%"> <img src="assets/img/product_pics/module/gsm/gsm_04.jpg" width="50%" height="50%"> 
+<img src="assets/img/product_pics/module/gsm/gsm_03.jpg" width="50%" height="50%"> <img src="assets/img/product_pics/module/gsm/gsm_04.jpg" width="50%" height="50%"> <img src="assets/img/product_pics/module/gsm/NanoSIM.jpeg" width="50%" height="50%"> 
 <br><br><br>
 
 *The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as mobile phones and tablets.*
@@ -38,8 +38,8 @@ Product Feature:
 - 2x LEDs
 - 2X speakers: SPK1 reserved, SPK2 connected to PIN25
 - M6315
-    - Tem：-40°C ~ + 85°C
-    - Frequency Band（MHz）:
+    - Tem�?-40°C ~ + 85°C
+    - Frequency Band（MHz�?:
         - 850/900/1800/1900 
     - Data Transmit:
         - spped: (kbps) 85.6(UL)/85.6(DL) 
@@ -48,8 +48,8 @@ Product Feature:
         - Network Protocol: IPV4/IPV6*/TCP/UDP/PPP/HTTP/FTP/MQTT 
     - Consumption:
         - <2mA@DRX=5 
-- Product Size：54.2mm x 54.2mm x 12.8mm
-- Product weight：12.8g
+- Product Size�?54.2mm x 54.2mm x 12.8mm
+- Product weight�?12.8g
 
 ## Include
 
diff --git a/docs/en/module/lte.md b/docs/en/module/lte.md
index a867ef23..d05da58b 100644
--- a/docs/en/module/lte.md
+++ b/docs/en/module/lte.md
@@ -17,6 +17,7 @@ In the LTE-4G module scheme, we added more hardware resources, 1 reserved speake
 M8321  is 4V power input, so in the hardware of LTE-4G module, we added a Bidirectional Voltage-Level Translator (TXS0104E), to switch the power supply to 4V. 
 
 <img src="assets/img/product_pics/module/lte/lte_03.jpg" width="50%" height="50%">
+<img src="assets/img/product_pics/module/lte/NanoSIM.jpeg" width="50%" height="50%">
 <br>
 
 *In telecommunication, Long-Term Evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies. It increases the capacity and speed using a different radio interface together with core network improvements.*
@@ -28,13 +29,13 @@ Product Feature:
 - Power Input: 5V
 - Serial Communication: Uart2 16/17
 - M8321
-    - Tem：-40°C ~ + 85°C
+    - Tem�?-40°C ~ + 85°C
     - Frequency Band:
         - LTE-TDD：B38/B39/B40/B41 
         - LTE-FDD：B1/B3/B8 
         - TD-SCDMA：B34/B39
         - WCDMA：B1/B8
-        - GSM(MHz)：900/1800
+        - GSM(MHz)�?900/1800
     - Data Transmit:
         - LTE speed: (Mbps) LTE-FDD 50(UL)/150(DL)　LTE-TDD 50(UL)/100(DL)
         - HSPA+ speed: (Mbps) 5.76(UL)/21.6(DL)
@@ -47,8 +48,8 @@ Product Feature:
         - 17uA@Poweroff 
         - 3mA@Sleep 
         - 45mA@Idle
-- Product Size：54.2mm x 54.2mm x 12.8mm
-- Product weight：18.1g
+- Product Size�?54.2mm x 54.2mm x 12.8mm
+- Product weight�?18.1g
 
 ## Include
 
diff --git a/docs/en/module/nb-iot.md b/docs/en/module/nb-iot.md
index 52d4c6fe..08e3f953 100644
--- a/docs/en/module/nb-iot.md
+++ b/docs/en/module/nb-iot.md
@@ -1,6 +1,7 @@
 # Module NB-IoT {docsify-ignore-all}
 
 <img src="assets/img/product_pics/module/nb-iot/nb_iot_01.jpg" width="30%" height="30%">&nbsp;&nbsp;&nbsp; <img src="assets/img/product_pics/module/nb-iot/nb_iot_02.jpg" width="30%" height="30%"> 
+<img src="assets/img/product_pics/module/nb-iot/NanoSIM.jpeg" width="60%" height="60%">
 
 ***
 
@@ -60,8 +61,8 @@ Power Operation:
       - 167mA@Tx(23dBm/15kHzST) 54mA@Rx
       -output power: 23dBm±2dB
     - Certificate: CCC/SRRC/NAL/GTI
-- Product Size：54.2mm x 54.2mm x 12.8mm
-- Product weight：13.3g
+- Product Size�?54.2mm x 54.2mm x 12.8mm
+- Product weight�?13.3g
 
 ## Include
 
diff --git a/docs/en/uiflow/FACES.md b/docs/en/uiflow/FACES.md
new file mode 100644
index 00000000..e69de29b
diff --git a/docs/en/uiflow/Modules.md b/docs/en/uiflow/Modules.md
new file mode 100644
index 00000000..e69de29b
diff --git a/docs/en/uiflow/Units.md b/docs/en/uiflow/Units.md
new file mode 100644
index 00000000..e69de29b
diff --git a/docs/en/uiflow/uiflow_home_page.md b/docs/en/uiflow/uiflow_home_page.md
index 8b50e3ea..570bef9e 100644
--- a/docs/en/uiflow/uiflow_home_page.md
+++ b/docs/en/uiflow/uiflow_home_page.md
@@ -50,6 +50,23 @@
             <p><a class="btn btn-secondary" href="#/en/uiflow/advanced" role="button">View details »</a></p>
           </div>
   </div>
+<div class="row">
+          <div class="col-md-4">
+            <h2>Units</h2>
+            <p class="uiflow_p">Introduction to how to use unit devices, such as ToF, ENV, Realy, inlucde I/O,UART,I2C,etc.</p>
+            <p><a class="btn btn-secondary" href="#/en/uiflow/Units" role="button">View details »</a></p>
+          </div>
+          <div class="col-md-4">
+            <h2>Modules</h2>
+            <p class="uiflow_p">Introduce some useful modules block add to your project  in UIFlow. </p>
+            <p><a class="btn btn-secondary" href="#/en/uiflow/Modules" role="button">View details »</a></p>
+          </div>
+          <div class="col-md-4">
+            <h2>FACES</h2>
+            <p class="uiflow_p">UIFlow uses FACES panel for interface interaction or data manipulation  help you to improve input efficiency.</p>
+            <p><a class="btn btn-secondary" href="#/en/uiflow/FACES" role="button">View details »</a></p>
+          </div>
+  </div>
 </div>
 
 <br><br><br><br>
\ No newline at end of file
diff --git a/docs/zh_CN/uiflow/uiflow_home_page.md b/docs/zh_CN/uiflow/uiflow_home_page.md
index 6328e91e..8dfbd765 100644
--- a/docs/zh_CN/uiflow/uiflow_home_page.md
+++ b/docs/zh_CN/uiflow/uiflow_home_page.md
@@ -50,6 +50,24 @@
             <p><a class="btn btn-secondary" href="#/zh_CN/uiflow/advanced" role="button">View details »</a></p>
           </div>
   </div>
+
+<div class="row">
+          <div class="col-md-4">
+            <h2>Units</h2>
+            <p class="uiflow_p">UIFlow相关的Units使用方法，如ToF,ENV,Realy等模块，包含I/O类和I2C及UART接口的硬件. </p>
+            <p><a class="btn btn-secondary" href="#/zh_CN/uiflow/data_structure" role="button">View details »</a></p>
+          </div>
+          <div class="col-md-4">
+            <h2>Modules</h2>
+            <p class="uiflow_p">UIFlow中配合Modules使用的操作说明. </p>
+            <p><a class="btn btn-secondary" href="#/zh_CN/uiflow/logic" role="button">View details »</a></p>
+          </div>
+          <div class="col-md-4">
+            <h2>FACES</h2>
+            <p class="uiflow_p">UIFlow中使用FACES面板进行界面交互或数据操作,提高输入效率.</p>
+            <p><a class="btn btn-secondary" href="#/zh_CN/uiflow/advanced" role="button">View details »</a></p>
+          </div>
+  </div>
 </div>
 
 <br><br><br><br>
\ No newline at end of file