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AutoConnect/mkdocs/apiconfig.md

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Constructor

AutoConnectConfig

AutoConnectConfig()

AutoConnectConfig(const char* ap, const char* password)

AutoConnectConfig(const char* ap, const char* password, const unsigned long timeout)

AutoConnectConfig(const char* ap, const char* password, const unsigned long timeout, const uint8_t channel)
**Parameters**
apSSID for SoftAP. The length should be up to 31. The default value is **esp8266ap** for ESP8266, **esp32ap** for ESP32.
passwordPassword for SodtAP. The length should be from 8 to up to 63. The default value is **12345678**.
timeoutThe timeout value of the captive portal in [ms] units. The default value is 0.
channelThe channel number of WIFi when SoftAP starts. The default values is 1.

Public member variables

apid

SoftAP's SSID.

**Type**
String The default value is **esp8266ap** for ESP8266, **esp32ap** for ESP32.

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**
IPAddressThe default value is **172.217.28.1**

autoReconnect

Automatically will try to reconnect with the past established access point (BSSID) when the current configured SSID in ESP8266/ESP32 could not be connected. By enabling this option, AutoConnect::begin() function will attempt to reconnect to a known access point using credentials stored in the flash, even if the connection failed by current SSID.
If the connection fails, starts the captive portal in SoftAP+STA mode.

**Type**
bool
**Value**
trueReconnect automatically.
falseStarts Captive Portal in SoftAP + STA mode without trying to reconnect. This is the default.

When the autoReconnect option is enabled, an automatic connection will behave if the following conditions are satisfied.

  • Invokes AutoConnect::begin without user name and password parameter as begin().
  • If one of the saved BSSIDs (not the SSID) of the credentials matches the BSSID detected by the network scan.

autoReset

Reset ESP8266 module automatically after WLAN disconnected.

**Type**
bool
**Value**
trueReset after WiFi disconnected automatically.
falseNo reset.

autoRise

Captive portal activation switch. False for disabling the captive portal. It prevents starting the captive portal even if the connection at the first WiFi.begin fails.

**Type**
bool
**Value**
trueEnable the captive portal. This is the default.
falseDisable the captive portal.

autoSave

The credential saved automatically at the connection establishment.

**Type**
AC_SAVECREDENTIAL_t
**Value**
AC_SAVECREDENTIAL_AUTO The credential saved automatically. This is the default.
AC_SAVECREDENTIAL_NEVER The credential no saved.

bootUri

Specify the location to be redirected after module reset in the AutoConnect menu. It is given as an enumeration value of AC_ONBOOTURI_t indicating either the AutoConnect root path or the user screen home path.

**Type**
AC_ONBOOTURI_t
**Value**
AC_ONBOOTURI_ROOT Resetting the module redirects it to the AutoConnect root path. The root path is assumed to be AUTOCONNECT_URI defined in [`AutoConnectDefs.h`](api.md#defined-macros).
AC_ONBOOTURI_HOME It is redirected to the URI specified by [**AutoConnectConfig::homeUri**](apiconfig.md#homeuri).

boundaryOffset

Sets the offset address of the credential storage area for EEPROM. This value must be between greater than 4 and less than flash sector size. (4096 by SDK)
The default value is 0.
This option is valid only for ESP8266 or ESP32 arduino core 1.0.2 earlier.

**Type**
uint16_t

!!! warning "It will conflict with user data." If the sketch leaves this offset at zero, it will conflict the storage area of credentials with the user sketch owned data. It needs to use the behind of credential area.

channel

The channel number of WIFi when SoftAP starts.

**Type**
uint8_t
**Value**
1 ~ 14. The default value is 1.

!!! info "How do I choose Channel" Espressif Systems had announced the application note about Wi-Fi channel selection.

dns1

Set primary DNS server address when using static IP address.

**Type**
IPAddress

dns2

Set secondary DNS server address when using static IP address.

**Type**
IPAddress

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**
IPAddressThe default value is **172.217.28.1**

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. The default for homeUri is "/".

**Type**
String

hostName

Sets the station host name of ESP8266/ESP32.

**Type**
String

immediateStart

Disable the first WiFi.begin() and start the captive portal. If this option is enabled, the module will be in AP_STA mode and the captive portal will be activated regardless of AutoConnectConfig::autoRise specification.

**Type**
bool
**Value**
trueStart the captive portal with [**AutoConnect::begin**](api.md#begin).
falseEnable the first WiFi.begin() and it will start captive portal when connection failed. This is default.

menuItems

Configure applying items of the AutoConnect menu. You can arbitrarily combine valid menus by coordinating the menuItems value.

**Type**
uint16_tIt provides the combined **AC_MENUITEM_t** value of the item to apply to the AutoConnect menu.
Specify the value calculated from the **logical OR** by the AC_MENUITEM_t value of each item applied as a menu. It affects not only disappear the items from the menu also invalidates the URI they have. As a consequence, even if it accesses the URL directly will occur a 404 error.
The default value is logical OR of AC_MENUITEM_CONFIGNEW, AC_MENUITEM_OPENSSIDS, AC_MENUITEM_DISCONNECT, AC_MENUITEM_RESET, AC_MENUITEM_UPDATE and AC_MENUITEM_HOME.
**Value**
AC_MENUITEM_NONE No assign items except for the AutoConnectAux page item.
AC_MENUITEM_CONFIGNEW Appends [Configure new AP](menu.md#config-new-ap) item.
AC_MENUITEM_OPENSSIDS Appends [Open SSIDs](menu.md#open-ssids) item.
AC_MENUITEM_DISCONNECT Appends [Disconnect](menu.md#disconnect) item.
AC_MENUITEM_RESET Appends [Reset...](menu.md#reset) item.
AC_MENUITEM_UPDATE Appends [Update](menu.md#update) item.
AC_MENUITEM_HOME Appends [HOME](menu.md#home) item.
AC_MENUITEM_DEVINFO Appends the **Device info** item which links to [AutoConnect statistics page](menu.md##where-the-from).

!!! info "How to specify the value of the menu items" An menuItems accepts the logical OR of AC_MENUITEM_t type value. For example, to enable only Open SSIDs and HOME items, specify: cpp AutoConnectConfig config; config.menuItems = AC_MENUITEM_OPENSSIDS | AC_MENUITEM_HOME; However, even if you specify like the above, the AutoConnectAux page items still display on the menu. To remove the AutoConnectAux items, use the AutoConnectAux::menu function.

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**
IPAddressThe default value is **255.255.255.0**

ota

Specifies to import the built-in OTA update class into the sketch. When this option is enabled, an Update item will appear in the AutoConnect menu, and the OTA update via Web browser will be automatically embedded to the Sketch.

**Type**
AC_OTA_t
**Value**
AC_OTA_EXTRA AutoConnect does not import AutoConnectOTA. This is the default.
AC_OTA_BUILTIN Specifies to include AutoConnectOTA in the Sketch.

portalTimeout

Specify the timeout value of the captive portal in [ms] units. It is valid when the station is not connected and does not time out if the station is connected to the ESP module in SoftAP mode (i.e. Attempting WiFi connection with the portal function). If 0, the captive portal will not be timed-out.

**Type**
unsigned longCaptive portal timeout value. The default value is 0.

psk

Sets password for SoftAP. The length should be from 8 to up to 63. The default value is 12345678.

**Type**
String

retainPortal

Specify whether to continue the portal function even if the captive portal timed out. If the true, when a timeout occurs, the AutoConnect::begin function is exited with returns false, but the portal facility remains alive. So SoftAP remains alive and you can invoke AutoConnect while continuing sketch execution. The default is false.

**Type**
bool
**Value**
trueContinue the portal function even if the captive portal times out. The STA + SoftAP mode of the ESP module continues and accepts the connection request to the AP.
falseWhen the captive portal times out, STA + SoftAP mode of the ESP module is stopped. This is default.

!!! hint "Connection request after timed-out" With the retainPortal, even if AutoConnect::begin in the setup() is timed out, you can execute the sketch and the portal function as a WiFi connection attempt by calling AutoConnect::handleClient in the loop().

!!! info "All unresolved addresses redirects to /_ac" If you enable the retainPortal option, all unresolved URIs will be redirected to SoftAPIP/_ac. It happens frequently as client devices repeat captive portal probes in particular. To avoid this, you need to exit from the WiFi connection Apps on your device once.

staip

Set a static IP address. The IP will behave with STA mode.

**Type**
IPAddress

staGateway

Set the gateway address when using static IP address.

**Type**
IPAddress

staNetmask

Set the subnetmask when using static IP address.

**Type**
IPAddress

ticker

Set flicker signal output according to WiFi connection status during AutoConnect::begin behavior.

**Type**
bool
**Value**
trueOutput the flicker signal while [AutoConnect::begin](api.md#begin) operation. The **AUTOCONNECT_TICKER_PORT** macro in the `AutoConnectDefs.h` header file assigns pins for signal output. The default pin is arduino valiant's LED_BUILTIN. For boards without the LED_BUILTIN pin, assume pin #2.
falseNo flicker signal output.

tickerPort

Specifies the GPIO port number to output the flicker signal of the ticker. The default assumes on the board dependent definition LED_BUILTIN macro redefined by AUTOCONNECT_TICKER_PORT in AutoConnectDefs.h.

**Type**
uint8_t

tickerOn

Specifies the active logic level of the flicker signal. This value indicates the active signal level when driving the ticker.

**Type**
uint8_t
**Value**
LOWA flicker signal is an active-high.
HIGHA flicker signal is an active-low.

title

Set the menu title.

**Type**
String

AutoConnectConfig example

AutoConnect        Portal;
AutoConnectConfig  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.autoReconnect = true;                  // Enable auto-reconnect
Config.autoSave = AC_SAVECREDENTIAL_NEVER;    // No save credential
Config.boundaryOffset = 64;                   // Reserve 64 bytes for the user data in EEPROM.
Config.portalTimeout = 60000;                 // Sets timeout value for the captive portal
Config.retainPortal = true;                   // Retains the portal function after timed-out
Config.homeUri = "/index.html";				  // Sets home path of the sketch application
Config.title ="My menu";                      // Customize the menu title
Config.staip = IPAddress(192,168,10,10);      // Sets static IP
Config.staGateway = IPAddress(192,168,10,1);  // Sets WiFi router address
Config.staNetmask = IPAddress(255,255,255,0); // Sets WLAN scope
Config.dns1 = IPAddress(192,168,10,1);        // Sets primary DNS address
Portal.config(Config);                        // Configure AutoConnect
Portal.begin();                               // Starts and behaves captive portal