+
+### No need pre-coded SSID & password
+
+It is no needed hard-coding in advance the SSID and Password into the sketch to connect between ESP8266 and WLAN. You can input SSID & Password from a smartphone via the web interface at runtime.
+
+### Simple usage
+
+AutoConnect control screen will be displayed automatically for establishing new connections. It aids by the 
+
+## More usages and Documentation
+
+The documentation is available on https://Hieromon.github.io/AutoConnect, here are some shortcuts:
+
+- Installation.
+- Getting started.
+- Usage the Library.
+- API reference.
+- FAQ.
+
+## License
+
+License under the [MIT license](LICENSE).
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+Register the function which will call from AutoConnect at the start of the captive portal.
+
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+Register the handler function for undefined URL request detected.
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+ Library APIs
+ +Include headers¶
+AutoConnect.h¶
+#include <AutoConnect.h> +
Define macros¶
+#define AC_DEBUG // Monitor message output activation +#define AC_DEBUG_PORT Serial // Default message output device +#define AUTOCONNECT_AP_IP 0x01F4A8C0 // Default SoftAP IP +#define AUTOCONNECT_AP_GW 0x01F4A8C0 // Default SoftAP Gateway IP +#define AUTOCONNECT_AP_NM 0x00FFFFFF // Default subnet mask +#define AUTOCONNECT_DNSPORT 53 // Default DNS port at captive portal +#define AUTOCONNECT_MENU_TITLE "AutoConnect" // Default AutoConnect menu title +#define AUTOCONNECT_URI "/_ac" // Default AutoConnect root path +
AutoConnect API¶
+Constructors¶
+AutoConnect¶
+AutoConnect() +
AutoConnect default constructor. This entry activates WebServer internally and the web server is allocated internal.
+AutoConnect(ESP8266WebServer& webServer) +
Run the AutoConnect site using the externally ensured ESP 8266 WebServer. User's added URI handler response can be included in handleClient method. +
-
+
- Parameters +
- webServerA reference of ESP8266WebServer instance. +
Public member functions¶
+begin¶
+bool begin() +
bool begin(const char* ssid, const char* passphraase) +
bool begin(const char* ssid, const char* passphraase, unsinged long timeout) +
Starts establishing WiFi connection. Before establishing, start the Web server and DNS server for the captive portal. Then begins connection establishment in WIFI_STA mode. If connection can not established with the specified SSID and password, switch to WIFI_AP_STA mode and activate SoftAP. +
-
+
- Parameters +
- ssidSSID to be connected. +
- passphrasePassword for connection. +
- timeoutA time out value in milliseconds for waiting connection. +
- Return value +
- trueConnection established, AutoConnect service started with WIFI_STA mode. +
- falseCould not connected, Captive portal started with WIFI_AP_STA mode. +
config¶
+bool config(AutoConnectConfig& config) +
bool config(const char* ap, const char* password = nullptr) +
Sets SoftAP's WiFi configuration. +
-
+
- Parameters +
- configReference to AutoConnectConfig containing SoftAP's parameters. +
- apSSID for SoftAP. The default value is esp8266ap. +
- passwordPassword for SodtAP. The default value is 12345678. +
- Return value +
- trueSuccessfully configured. +
- falseConfiguration parameter is invalid, some values out of range. +
end¶
+void end() +
Stops AutoConnect captive portal service. Release ESP8266WebServer and DNSServer.
+
+
+Attention to end
+The end function releases the instance of ESP8266WebServer and DNSServer. It can not process them after the end function.
+handleClient¶
+void handleClient() +
Handling for the AutoConnect web interface. Invoke the handleClient of the parent web server to process client request of the AutoConnect WEB interface. No effects when the web server is not available.
+handleRequest¶
+void handleRequest() +
Handling for the AutoConnect menu request.
+
+
+About used in combination with handleClient
+The handleRequest function is not supposed to use with AutoConnect::handleClient. It should be used with ESP8266::handleClient.
+home¶
+void home(String uri) +
Put a user site's home URI. The URI specified by home is linked from "HOME" in the AutoConnect portal menu. +
-
+
- Parameters +
- uri A URI string of user site's home path. +
host¶
+Returns the reference of the ESP8266WebServer which is allocated in AutoConnect automatically.
+ESP8266WebServer& host() +
-
+
- Return value +
- A reference of the ESP8266WebServer. +
+
+or
+
+
+&reference is not a pointer
+A reference cannot be re-assigned, and must be assigned at initialization. It's like as bind as alias.
+
ESP8266WebServer& server = portal.host(); +server.handleClient(); +
+
portal.host().handleClient(); +
onDetect¶
+void onDetect(DetectExit_ft fn) +
-
+
- Parameters +
- fnFunction called at the captive portal start. +
An fn specifies the function called when the captive portal starts. Its prototype declaration is defined as "DetectFunc_ft".
+typedef std::function<bool(IPAddress softapIP)> DetectExit_ft +
-
+
- Parameters +
- softapIPAn IP address of SoftAP for the captive portal. +
- Retuen value +
- trueContinues captive portal handling. +
- falseCancel the captive portal. AutoConnect::begin function will return with a false. +
onNotFound¶
+void onNotFound(ESP8266WebServer::THandlerFunction fn) +
-
+
- Parameters +
- fnA function of the "not found" handler. +
AutoConnectConfig API¶
+Constructor¶
+AutoConnectConfig¶
+AutoConnectConfig(); +
AutoConnectConfig(const char* ap, const char* password); +
-
+
- Parameters +
- apSSID for SoftAP. The length should be up to 31. The default value is esp8266ap. +
- passwordPassword for SodtAP. The length should be from 8 to up to 63. The default value is 12345678. +
Public member variables¶
+apid¶
+SoftAP's SSID. +
-
+
- Type +
- String +
apip¶
+Sets IP address for Soft AP in captive portal. When AutoConnect fails the initial WiFi.begin, it starts the captive portal with the IP address specified this. +
-
+
- Type +
- IPAddress +
autoReset¶
+Reset ESP8266 module automatically when WLAN disconnected. +
-
+
- Type +
- bool +
- Value +
- trueReset after WiFi disconnected automatically. +
- falseNo reset. +
autoSave¶
+The credential saved automatically at the connection establishment. +
-
+
- Type +
- AC_SAVECREDENTIAL_t +
- Value +
- AC_SAVECREDENTIAL_AUTOThe credential saved automatically. +
- AC_SAVECREDENTIAL_NEVERThe credential no saved. +
channel¶
+The channel number of WIFi when SoftAP starts. +
-
+
- Type +
- uint8_t +
- Value +
- 1 ~ 14. The default value is 1. +
+
+See Application note
+Espressif Systems had announced the application note about Wi-Fi channel selection.
+gateway¶
+Sets gateway address for Soft AP in captive portal. When AutoConnect fails the initial WiFi.begin, it starts the captive portal with the IP address specified this. +
-
+
- Type +
- IPAddress +
hidden¶
+Sets SoftAP to hidden SSID. +
-
+
- Type +
- uint8_t +
- Value +
- 0SSID will be appeared. This is the default. +
- 1SSID will be hidden. +
homeUri¶
+Sets the home path of user sketch. This path would be linked from 'HOME' in the AutoConnect menu. +
-
+
- Type +
- String +
netmask¶
+Sets subnet mask for Soft AP in captive portal. When AutoConnect fails the initial WiFi.begin, it starts the captive portal with the IP address specified this. +
-
+
- Type +
- IPAddress +
psk¶
+Sets password for SoftAP. The length should be from 8 to up to 63. The default value is 12345678. +
-
+
- Type +
- String +
AutoConnectConfig example¶
+AutoConenct Portal; +AutoConenctConfig Config("", "passpass"); // SoftAp name is determined at runtime +Config.apid = ESP.hostname(); // Retrieve host name to SotAp identification +Config.apip = IPAddress(192,168,10,101); // Sets SoftAP IP address +Config.gateway = IPAddress(192,168,10,1); // Sets WLAN router IP address +Config.netmask = IPAddress(255,255,255,0); // Sets WLAN scope +Config.autoSave = AC_SAVECREDENTIAL_NEVER; // No save credential +Config.homeUri = "/index.html" // Sets home path of the sketch application +Portal.config(Config); // Configure AutoConnect +Portal.begin(); // Starts and behaves captive portal +
Something extra¶
+The library presents two PNG icons which can be used to embed a hyperlink to the AutoConnect menu.
+-
+
- Bar type
+ - Cog type
+
To reference the icon, use the AUTOCONNECT_LINK macro in the sketch. It expands into the string literal as an HTML <a></a> tag with PNG embedded of the AutoConnect menu hyperlinks. Icon type is specified by the parameter of the macro.
-
+
- BAR_32Bars icon, 32x32. +
- BAR_48Bars icon, 48x48. +
- COG_24Cog icon, 24x24. +
- COG_32Cog icon, 32x32. +
+
+
+
+
+
+
+
+
+
+
+ Usage
+String html = "<html>"; +html += AUTOCONNECT_LINK(BAR_32); +html += "</html>"; +server.send(200, "text/html", html); +
+
+