Update 01_ESP-F.rst

source/WiFi Module/01_ESP-F.rst

@@ -279,3 +279,66 @@ The Recommended Sold Temperature Curve
     :figclass: align-center
 
     ESP-F temperature curve
+
+ Schematics for ESP-F
+ --------------
+
+    .. figure:: ../_static/ESPFSchematics.png
+    :align: center
+    :alt: Schematics for ESP-F
+    :figclass: align-center
+
+    Schematics for ESP-F
+
+ Minimum System
+ --------------
+
+   .. figure:: ../_static/ESPFSchematics.png
+    :align: center
+    :alt: Schematics for ESP-F
+    :figclass: align-center
+
+ Schematics for ESP-F
+ --------------   
+
+ .. figure:: ../_static/ESPFMinimum.png
+    :align: center
+    :alt: Minimum for ESP-F
+    :figclass: align-center
+
+ Minimum for ESP-F
+
+.. Note::
+(1) the working voltage for module is DC 3.3V;
+(2) the max current from IO of this module is 12mA;
+(3) RST Pin is enabled when it is low level; and EN pin is enabled when it is high level;
+(4) WiFi module is at update mode: GPIO0 is low level, then module reset to power;  Wi-Fi module is at working mode: GPIO0 is at high level, and then reset to power; 
+(5) Wi-Fi module is connected to RXD of the other MCU, and TXD is connected to RXD of the other MCU.
+
+The Recommended PCB Design
+------------
+
+Wi-Fi module can be inserted into the PCB board directly. For the high RF performance for the end device, please note the placement for the antenna and the module. 
+    It is suggested that the module is placed along with PCB side, the antenna is placed outside the board, or along with the PCB side,  and the below board is blank, please refer to the scheme 1 and scheme 2; if the PCB antenna must placed on the board, please do not cover the copper at the bottom of PCB antenna, as can be shown at scheme 3.
+
+ .. figure:: ../_static/ESPFS1.png
+    :align: center
+    :alt: Scheme1 for ESP-F
+    :figclass: align-center
+
+ Scheme1 for ESP-F
+
+  .. figure:: ../_static/ESPFS1.png
+    :align: center
+    :alt: Scheme2 for ESP-F
+    :figclass: align-center
+
+ Scheme2 for ESP-F
+
+  .. figure:: ../_static/ESPFS1.png
+    :align: center
+    :alt: Scheme3 for ESP-F
+    :figclass: align-center
+
+ Scheme3 for ESP-F
+