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### Major Releases v1.2.0

1. Configurable **Customs HTML Headers**, including Customs Style, Customs Head Elements, CORS Header.
2. Add functions to control Config Portal from software or Virtual Switches. Check [How to trigger a Config Portal from code #25](khoih-prog/Blynk_WM#25)
3. Use more efficient [FlashStorage_SAMD v1.1.0](https://github.com/khoih-prog/FlashStorage_SAMD) and [FlashStorage_STM32 v1.0.0](https://github.com/khoih-prog/FlashStorage_STM32)
4. Add support to **ESP32-S2 (ESP32-S2 Saola and AI-Thinker ESP-12K)**
5. Add [**Instructions to install ESP32-S2 core**](https://github.com/khoih-prog/Ethernet_Manager#howto-install-esp32-s2-core-for-esp32-s2-saola-ai-thinker-esp-12k-boards-into-arduino-ide)
6. Fix Config Portal Bug. 
7. Update examples

examples/AM2315_Ethernet/AM2315_Ethernet.ino

@@ -8,6 +8,16 @@
 
   Built by Khoi Hoang https://github.com/khoih-prog/Ethernet_Manager
   Licensed under MIT license
+
+  Version: 1.2.0
+
+  Version  Modified By   Date      Comments
+  -------  -----------  ---------- -----------
+  1.0.0     K Hoang     14/12/2020 Initial coding.
+  1.1.0     K Hoang     17/12/2020 Add support to ESP32/ESP8266. Add MQTT related examples to demo dynamic parameter usage
+  1.1.1     K Hoang     28/12/2020 Suppress all possible compiler warnings
+  1.2.0     K Hoang     22/02/2021 Optimize code and use better FlashStorage_SAMD and FlashStorage_STM32. 
+                                   Add customs HTML header feature. Fix bug.
  *****************************************************************************************************************************/
 
 #include "defines.h"
@@ -119,6 +129,11 @@ void check_status()
   }
 }
 
+#if USING_CUSTOMS_STYLE
+const char NewCustomsStyle[] /*PROGMEM*/ = "<style>div,input{padding:5px;font-size:1em;}input{width:95%;}body{text-align: center;}\
+button{background-color:blue;color:white;line-height:2.4rem;font-size:1.2rem;width:100%;}fieldset{border-radius:0.3rem;margin:0px;}</style>";
+#endif
+
 void setup()
 {
   Serial.begin(115200);
@@ -338,9 +353,25 @@ void setup()
   Serial.println(SPI_CS);
 #endif
   Serial.println(F("========================="));
+
+  //////////////////////////////////////////////
 
+#if USING_CUSTOMS_STYLE
+  ethernet_manager.setCustomsStyle(NewCustomsStyle);
+#endif
+
+#if USING_CUSTOMS_HEAD_ELEMENT
+  ethernet_manager.setCustomsHeadElement("<style>html{filter: invert(10%);}</style>");
+#endif
+
+#if USING_CORS_FEATURE  
+  ethernet_manager.setCORSHeader("Your Access-Control-Allow-Origin");
+#endif
+
   ethernet_manager.begin();
 
+  //////////////////////////////////////////////
+
   localEthernetIP = Ethernet.localIP();
 
 #if (USE_ETHERNET2 || USE_ETHERNET3)

examples/AM2315_Ethernet/Credentials.h

@@ -27,7 +27,7 @@ typedef struct Configuration
 } Ethernet_Configuration;
 */
 
-#define TO_LOAD_DEFAULT_CONFIG_DATA      true
+#define TO_LOAD_DEFAULT_CONFIG_DATA      false
 
 #if TO_LOAD_DEFAULT_CONFIG_DATA
 

examples/AM2315_Ethernet/defines.h

@@ -361,59 +361,6 @@
     // Otherwise, standard Ethernet library will be used for W5x00
 
   #endif    //  USE_ETHERNET_WRAPPER
-  #if !USE_ETHERNET_WRAPPER
-
-    #if ( USE_ETHERNET2 || USE_ETHERNET3 || USE_ETHERNET_LARGE || USE_ETHERNET_ESP8266 || USE_ETHERNET_ENC || USE_NATIVE_ETHERNET )
-      #ifdef USE_CUSTOM_ETHERNET
-        #undef USE_CUSTOM_ETHERNET
-      #endif
-      #define USE_CUSTOM_ETHERNET   false
-    #endif
-
-    #if USE_NATIVE_ETHERNET
-      #include "NativeEthernet.h"
-      #warning Using NativeEthernet lib for Teensy 4.1. Must also use Teensy Packages Patch or error
-      #define SHIELD_TYPE           "Custom Ethernet using Teensy 4.1 NativeEthernet Library"
-    #elif USE_ETHERNET3
-      #include "Ethernet3.h"
-      #warning Using Ethernet3 lib
-      #define SHIELD_TYPE           "W5x00 using Ethernet3 Library"
-    #elif USE_ETHERNET2
-      #include "Ethernet2.h"
-      #warning Using Ethernet2 lib
-      #define SHIELD_TYPE           "W5x00 using Ethernet2 Library"
-    #elif USE_ETHERNET_LARGE
-      #include "EthernetLarge.h"
-      #warning Using EthernetLarge lib
-      #define SHIELD_TYPE           "W5x00 using EthernetLarge Library"
-    #elif USE_ETHERNET_ESP8266
-      #include "Ethernet_ESP8266.h"
-      #warning Using Ethernet_ESP8266 lib 
-      #define SHIELD_TYPE           "W5x00 using Ethernet_ESP8266 Library" 
-    #elif USE_ETHERNET_ENC
-      #include "EthernetENC.h"
-      #warning Using EthernetENC lib
-      #define SHIELD_TYPE           "ENC28J60 using EthernetENC Library"
-    #elif USE_CUSTOM_ETHERNET
-      //#include "Ethernet_XYZ.h"
-      #include "EthernetENC.h"
-      #warning Using Custom Ethernet library. You must include a library and initialize.
-      #define SHIELD_TYPE           "Custom Ethernet using Ethernet_XYZ Library"
-    #else
-      #ifdef USE_ETHERNET
-        #undef USE_ETHERNET
-      #endif
-      #define USE_ETHERNET   true
-      #include "Ethernet.h"
-      #warning Using Ethernet lib
-      #define SHIELD_TYPE           "W5x00 using Ethernet Library"
-    #endif
-
-    // Ethernet_Shield_W5200, EtherCard, EtherSia not supported
-    // Select just 1 of the following #include if uncomment #define USE_CUSTOM_ETHERNET
-    // Otherwise, standard Ethernet library will be used for W5x00
-
-  #endif    //  USE_ETHERNET_WRAPPER
 
 #elif USE_UIP_ETHERNET
     #include "UIPEthernet.h"
@@ -496,6 +443,20 @@
   #define EEPROM_START   0
 #endif
 
+/////////////////////////////////////////////
+
+// Add customs headers from v1.2.0
+#define USING_CUSTOMS_STYLE                 true
+#define USING_CUSTOMS_HEAD_ELEMENT          true
+#define USING_CORS_FEATURE                  true
+
+/////////////////////////////////////////////
+
+// Config Timeout 120s (default 60s)
+#define CONFIG_TIMEOUT                      120000L
+
+#define USE_DYNAMIC_PARAMETERS              true
+
 //////////////////////////////////////////
 
 #include <Ethernet_Manager.h>

examples/AM2315_Ethernet/dynamicParams.h

@@ -15,7 +15,7 @@
 
 #include "defines.h"
 
-#define USE_DYNAMIC_PARAMETERS      true
+// USE_DYNAMIC_PARAMETERS defined in defined.h
 
 /////////////// Start dynamic Credentials ///////////////
 

examples/DHT11_Ethernet/DHT11_Ethernet.ino

@@ -8,6 +8,16 @@
 
   Built by Khoi Hoang https://github.com/khoih-prog/Ethernet_Manager
   Licensed under MIT license
+
+  Version: 1.2.0
+
+  Version  Modified By   Date      Comments
+  -------  -----------  ---------- -----------
+  1.0.0     K Hoang     14/12/2020 Initial coding.
+  1.1.0     K Hoang     17/12/2020 Add support to ESP32/ESP8266. Add MQTT related examples to demo dynamic parameter usage
+  1.1.1     K Hoang     28/12/2020 Suppress all possible compiler warnings
+  1.2.0     K Hoang     22/02/2021 Optimize code and use better FlashStorage_SAMD and FlashStorage_STM32. 
+                                   Add customs HTML header feature. Fix bug.
  *****************************************************************************************************************************/
 
 #include "defines.h"
@@ -117,6 +127,11 @@ void check_status()
   }
 }
 
+#if USING_CUSTOMS_STYLE
+const char NewCustomsStyle[] /*PROGMEM*/ = "<style>div,input{padding:5px;font-size:1em;}input{width:95%;}body{text-align: center;}\
+button{background-color:blue;color:white;line-height:2.4rem;font-size:1.2rem;width:100%;}fieldset{border-radius:0.3rem;margin:0px;}</style>";
+#endif
+
 void setup()
 {
   // Debug console
@@ -333,8 +348,24 @@ void setup()
 #endif
   Serial.println(F("========================="));
 
+  //////////////////////////////////////////////
+
+#if USING_CUSTOMS_STYLE
+  ethernet_manager.setCustomsStyle(NewCustomsStyle);
+#endif
+
+#if USING_CUSTOMS_HEAD_ELEMENT
+  ethernet_manager.setCustomsHeadElement("<style>html{filter: invert(10%);}</style>");
+#endif
+
+#if USING_CORS_FEATURE  
+  ethernet_manager.setCORSHeader("Your Access-Control-Allow-Origin");
+#endif
+
   ethernet_manager.begin();
 
+  //////////////////////////////////////////////
+
   localEthernetIP = Ethernet.localIP();
 
 #if (USE_ETHERNET2 || USE_ETHERNET3)

examples/DHT11_Ethernet/defines.h

@@ -440,8 +440,23 @@
   #define EEPROM_START   0
 #endif
 
+/////////////////////////////////////////////
+
+// Add customs headers from v1.2.0
+#define USING_CUSTOMS_STYLE                 true
+#define USING_CUSTOMS_HEAD_ELEMENT          true
+#define USING_CORS_FEATURE                  true
+
+/////////////////////////////////////////////
+
+// Config Timeout 120s (default 60s)
+#define CONFIG_TIMEOUT                      120000L
+
+#define USE_DYNAMIC_PARAMETERS              true
+
 //////////////////////////////////////////
 
+
 #include <Ethernet_Manager.h>
 
 #define W5100_CS        10

examples/DHT11_Ethernet/dynamicParams.h

@@ -15,7 +15,7 @@
 
 #include "defines.h"
 
-#define USE_DYNAMIC_PARAMETERS      true
+// USE_DYNAMIC_PARAMETERS defined in defined.h
 
 /////////////// Start dynamic Credentials ///////////////
 

examples/Ethernet_Generic/Ethernet_Generic.ino

@@ -8,6 +8,16 @@
 
   Built by Khoi Hoang https://github.com/khoih-prog/Ethernet_Manager
   Licensed under MIT license
+
+  Version: 1.2.0
+
+  Version  Modified By   Date      Comments
+  -------  -----------  ---------- -----------
+  1.0.0     K Hoang     14/12/2020 Initial coding.
+  1.1.0     K Hoang     17/12/2020 Add support to ESP32/ESP8266. Add MQTT related examples to demo dynamic parameter usage
+  1.1.1     K Hoang     28/12/2020 Suppress all possible compiler warnings
+  1.2.0     K Hoang     22/02/2021 Optimize code and use better FlashStorage_SAMD and FlashStorage_STM32. 
+                                   Add customs HTML header feature. Fix bug.
  *****************************************************************************************************************************/
 
 #include "defines.h"
@@ -75,6 +85,11 @@ void check_status()
   }
 }
 
+#if USING_CUSTOMS_STYLE
+const char NewCustomsStyle[] /*PROGMEM*/ = "<style>div,input{padding:5px;font-size:1em;}input{width:95%;}body{text-align: center;}\
+button{background-color:blue;color:white;line-height:2.4rem;font-size:1.2rem;width:100%;}fieldset{border-radius:0.3rem;margin:0px;}</style>";
+#endif
+
 void setup()
 {
   // Debug console
@@ -292,8 +307,24 @@ void setup()
 #endif
   Serial.println(F("========================="));
 
+  //////////////////////////////////////////////
+
+#if USING_CUSTOMS_STYLE
+  ethernet_manager.setCustomsStyle(NewCustomsStyle);
+#endif
+
+#if USING_CUSTOMS_HEAD_ELEMENT
+  ethernet_manager.setCustomsHeadElement("<style>html{filter: invert(10%);}</style>");
+#endif
+
+#if USING_CORS_FEATURE  
+  ethernet_manager.setCORSHeader("Your Access-Control-Allow-Origin");
+#endif
+
   ethernet_manager.begin();
 
+  //////////////////////////////////////////////
+
   localEthernetIP = Ethernet.localIP();
 
 #if (USE_ETHERNET2 || USE_ETHERNET3)

examples/Ethernet_Generic/defines.h

@@ -440,8 +440,23 @@
   #define EEPROM_START   0
 #endif
 
+/////////////////////////////////////////////
+
+// Add customs headers from v1.2.0
+#define USING_CUSTOMS_STYLE                 true
+#define USING_CUSTOMS_HEAD_ELEMENT          true
+#define USING_CORS_FEATURE                  true
+
+/////////////////////////////////////////////
+
+// Config Timeout 120s (default 60s)
+#define CONFIG_TIMEOUT                      120000L
+
+#define USE_DYNAMIC_PARAMETERS              true
+
 //////////////////////////////////////////
 
+
 #include <Ethernet_Manager.h>
 
 #define W5100_CS        10

examples/Ethernet_Generic/dynamicParams.h

@@ -15,7 +15,7 @@
 
 #include "defines.h"
 
-#define USE_DYNAMIC_PARAMETERS      true
+// USE_DYNAMIC_PARAMETERS defined in defined.h
 
 /////////////// Start dynamic Credentials ///////////////
 

examples/Ethernet_SAMD/Ethernet_SAMD.ino

@@ -8,6 +8,16 @@
 
   Built by Khoi Hoang https://github.com/khoih-prog/Ethernet_Manager
   Licensed under MIT license
+
+  Version: 1.2.0
+
+  Version  Modified By   Date      Comments
+  -------  -----------  ---------- -----------
+  1.0.0     K Hoang     14/12/2020 Initial coding.
+  1.1.0     K Hoang     17/12/2020 Add support to ESP32/ESP8266. Add MQTT related examples to demo dynamic parameter usage
+  1.1.1     K Hoang     28/12/2020 Suppress all possible compiler warnings
+  1.2.0     K Hoang     22/02/2021 Optimize code and use better FlashStorage_SAMD and FlashStorage_STM32. 
+                                   Add customs HTML header feature. Fix bug.
  *****************************************************************************************************************************/
 
 #include "defines.h"
@@ -75,6 +85,11 @@ void check_status()
   }
 }
 
+#if USING_CUSTOMS_STYLE
+const char NewCustomsStyle[] /*PROGMEM*/ = "<style>div,input{padding:5px;font-size:1em;}input{width:95%;}body{text-align: center;}\
+button{background-color:blue;color:white;line-height:2.4rem;font-size:1.2rem;width:100%;}fieldset{border-radius:0.3rem;margin:0px;}</style>";
+#endif
+
 void setup()
 {
   // Debug console
@@ -173,8 +188,24 @@ void setup()
 #endif
   ET_LOGWARN(F("========================="));
 
+  //////////////////////////////////////////////
+
+#if USING_CUSTOMS_STYLE
+  ethernet_manager.setCustomsStyle(NewCustomsStyle);
+#endif
+
+#if USING_CUSTOMS_HEAD_ELEMENT
+  ethernet_manager.setCustomsHeadElement("<style>html{filter: invert(10%);}</style>");
+#endif
+
+#if USING_CORS_FEATURE  
+  ethernet_manager.setCORSHeader("Your Access-Control-Allow-Origin");
+#endif
+
   ethernet_manager.begin();
 
+  //////////////////////////////////////////////
+
   localEthernetIP = Ethernet.localIP();
 
 #if (USE_ETHERNET2 || USE_ETHERNET3)