659 lines
21 KiB
C++
659 lines
21 KiB
C++
/****************************************************************************************************************************
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ConfigOnDoubleReset.ino
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For ESP8266 / ESP32 boards
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ESP_WiFiManager is a library for the ESP8266/ESP32 platform (https://github.com/esp8266/Arduino) to enable easy
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configuration and reconfiguration of WiFi credentials using a Captive Portal. Inspired by:
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http://www.esp8266.com/viewtopic.php?f=29&t=2520
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https://github.com/chriscook8/esp-arduino-apboot
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https://github.com/esp8266/Arduino/blob/master/libraries/DNSServer/examples/CaptivePortalAdvanced/
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Modified from Tzapu https://github.com/tzapu/WiFiManager
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and from Ken Taylor https://github.com/kentaylor
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Built by Khoi Hoang https://github.com/khoih-prog/ESP_WiFiManager
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Licensed under MIT license
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Version: 1.2.0
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Version Modified By Date Comments
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------- ----------- ---------- -----------
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1.0.0 K Hoang 07/10/2019 Initial coding
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1.0.1 K Hoang 13/12/2019 Fix bug. Add features. Add support for ESP32
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1.0.2 K Hoang 19/12/2019 Fix bug thatkeeps ConfigPortal in endless loop if Portal/Router SSID or Password is NULL.
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1.0.3 K Hoang 05/01/2020 Option not displaying AvailablePages in Info page. Enhance README.md. Modify examples
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1.0.4 K Hoang 07/01/2020 Add RFC952 setHostname feature.
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1.0.5 K Hoang 15/01/2020 Add configurable DNS feature. Thanks to @Amorphous of https://community.blynk.cc
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1.0.6 K Hoang 03/02/2020 Add support for ArduinoJson version 6.0.0+ ( tested with v6.14.1 )
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1.0.7 K Hoang 13/04/2020 Reduce start time, fix SPIFFS bug in examples, update README.md
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1.0.8 K Hoang 10/06/2020 Fix STAstaticIP issue. Restructure code. Add LittleFS support for ESP8266 core 2.7.1+
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1.0.9 K Hoang 29/07/2020 Fix ESP32 STAstaticIP bug. Permit changing from DHCP <-> static IP using Config Portal.
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Add, enhance examples (fix MDNS for ESP32)
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1.0.10 K Hoang 08/08/2020 Add more features to Config Portal. Use random WiFi AP channel to avoid conflict.
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1.0.11 K Hoang 17/08/2020 Add CORS feature. Fix bug in softAP, autoConnect, resetSettings.
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1.1.0 K Hoang 28/08/2020 Add MultiWiFi feature to autoconnect to best WiFi at runtime
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1.1.1 K Hoang 30/08/2020 Add setCORSHeader function to allow flexible CORS. Fix typo and minor improvement.
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1.1.2 K Hoang 17/08/2020 Fix bug. Add example.
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1.2.0 K Hoang 09/10/2020 Restore cpp code besides Impl.h code to use if linker error. Fix bug.
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*****************************************************************************************************************************/
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/****************************************************************************************************************************
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This example will open a configuration portal when the reset button is pressed twice.
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This method works well on Wemos boards which have a single reset button on board. It avoids using a pin for launching the configuration portal.
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How It Works
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1) ESP8266
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Save data in RTC memory
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2) ESP32
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Save data in EEPROM from address 256, size 512 bytes (both configurable)
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So when the device starts up it checks this region of ram for a flag to see if it has been recently reset.
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If so it launches a configuration portal, if not it sets the reset flag. After running for a while this flag is cleared so that
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it will only launch the configuration portal in response to closely spaced resets.
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Settings
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There are two values to be set in the sketch.
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DRD_TIMEOUT - Number of seconds to wait for the second reset. Set to 10 in the example.
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DRD_ADDRESS - The address in ESP8266 RTC RAM to store the flag. This memory must not be used for other purposes in the same sketch. Set to 0 in the example.
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This example, originally relied on the Double Reset Detector library from https://github.com/datacute/DoubleResetDetector
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To support ESP32, use ESP_DoubleResetDetector library from //https://github.com/khoih-prog/ESP_DoubleResetDetector
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*****************************************************************************************************************************/
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#if !( defined(ESP8266) || defined(ESP32) )
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#error This code is intended to run on the ESP8266 or ESP32 platform! Please check your Tools->Board setting.
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#endif
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// Use from 0 to 4. Higher number, more debugging messages and memory usage.
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#define _WIFIMGR_LOGLEVEL_ 3
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#include <FS.h>
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//Ported to ESP32
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#ifdef ESP32
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#include <esp_wifi.h>
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#include <WiFi.h>
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#include <WiFiClient.h>
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// From v1.1.0
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#include <WiFiMulti.h>
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WiFiMulti wifiMulti;
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#define USE_SPIFFS true
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#if USE_SPIFFS
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#include <SPIFFS.h>
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FS* filesystem = &SPIFFS;
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#define FileFS SPIFFS
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#define FS_Name "SPIFFS"
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#else
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// Use FFat
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#include <FFat.h>
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FS* filesystem = &FFat;
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#define FileFS FFat
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#define FS_Name "FFat"
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#endif
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//////
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#define ESP_getChipId() ((uint32_t)ESP.getEfuseMac())
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#define LED_BUILTIN 2
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#define LED_ON HIGH
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#define LED_OFF LOW
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#else
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#include <ESP8266WiFi.h> //https://github.com/esp8266/Arduino
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//needed for library
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#include <DNSServer.h>
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#include <ESP8266WebServer.h>
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// From v1.1.0
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#include <ESP8266WiFiMulti.h>
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ESP8266WiFiMulti wifiMulti;
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#define USE_LITTLEFS true
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#if USE_LITTLEFS
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#include <LittleFS.h>
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FS* filesystem = &LittleFS;
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#define FileFS LittleFS
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#define FS_Name "LittleFS"
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#else
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FS* filesystem = &SPIFFS;
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#define FileFS SPIFFS
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#define FS_Name "SPIFFS"
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#endif
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//////
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#define ESP_getChipId() (ESP.getChipId())
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#define LED_ON LOW
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#define LED_OFF HIGH
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#endif
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// These defines must be put before #include <ESP_DoubleResetDetector.h>
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// to select where to store DoubleResetDetector's variable.
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// For ESP32, You must select one to be true (EEPROM or SPIFFS)
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// For ESP8266, You must select one to be true (RTC, EEPROM, SPIFFS or LITTLEFS)
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// Otherwise, library will use default EEPROM storage
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#ifdef ESP32
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// These defines must be put before #include <ESP_DoubleResetDetector.h>
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// to select where to store DoubleResetDetector's variable.
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// For ESP32, You must select one to be true (EEPROM or SPIFFS)
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// Otherwise, library will use default EEPROM storage
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#if USE_SPIFFS
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#define ESP_DRD_USE_SPIFFS true
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#define ESP_DRD_USE_EEPROM false
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#else
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#define ESP_DRD_USE_SPIFFS false
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#define ESP_DRD_USE_EEPROM true
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#endif
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#else //ESP8266
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// For DRD
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// These defines must be put before #include <ESP_DoubleResetDetector.h>
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// to select where to store DoubleResetDetector's variable.
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// For ESP8266, You must select one to be true (RTC, EEPROM, SPIFFS or LITTLEFS)
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// Otherwise, library will use default EEPROM storage
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#if USE_LITTLEFS
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#define ESP_DRD_USE_LITTLEFS true
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#define ESP_DRD_USE_SPIFFS false
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#else
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#define ESP_DRD_USE_LITTLEFS false
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#define ESP_DRD_USE_SPIFFS true
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#endif
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#define ESP_DRD_USE_EEPROM false
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#define ESP8266_DRD_USE_RTC false
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#endif
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#define DOUBLERESETDETECTOR_DEBUG true //false
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#include <ESP_DoubleResetDetector.h> //https://github.com/khoih-prog/ESP_DoubleResetDetector
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// Number of seconds after reset during which a
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// subseqent reset will be considered a double reset.
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#define DRD_TIMEOUT 10
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// RTC Memory Address for the DoubleResetDetector to use
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#define DRD_ADDRESS 0
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//DoubleResetDetector drd(DRD_TIMEOUT, DRD_ADDRESS);
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DoubleResetDetector* drd;//////
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// Onboard LED I/O pin on NodeMCU board
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const int PIN_LED = 2; // D4 on NodeMCU and WeMos. GPIO2/ADC12 of ESP32. Controls the onboard LED.
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// SSID and PW for Config Portal
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String ssid = "ESP_" + String(ESP_getChipId(), HEX);
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const char* password = "your_password";
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// SSID and PW for your Router
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String Router_SSID;
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String Router_Pass;
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// From v1.1.0
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// You only need to format the filesystem once
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//#define FORMAT_FILESYSTEM true
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#define FORMAT_FILESYSTEM false
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#define MIN_AP_PASSWORD_SIZE 8
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#define SSID_MAX_LEN 32
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//From v1.0.10, WPA2 passwords can be up to 63 characters long.
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#define PASS_MAX_LEN 64
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typedef struct
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{
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char wifi_ssid[SSID_MAX_LEN];
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char wifi_pw [PASS_MAX_LEN];
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} WiFi_Credentials;
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typedef struct
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{
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String wifi_ssid;
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String wifi_pw;
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} WiFi_Credentials_String;
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#define NUM_WIFI_CREDENTIALS 2
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typedef struct
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{
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WiFi_Credentials WiFi_Creds [NUM_WIFI_CREDENTIALS];
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} WM_Config;
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WM_Config WM_config;
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#define CONFIG_FILENAME F("/wifi_cred.dat")
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//////
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// Indicates whether ESP has WiFi credentials saved from previous session, or double reset detected
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bool initialConfig = false;
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// Use false if you don't like to display Available Pages in Information Page of Config Portal
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// Comment out or use true to display Available Pages in Information Page of Config Portal
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// Must be placed before #include <ESP_WiFiManager.h>
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#define USE_AVAILABLE_PAGES false
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// From v1.0.10 to permit disable/enable StaticIP configuration in Config Portal from sketch. Valid only if DHCP is used.
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// You'll loose the feature of dynamically changing from DHCP to static IP, or vice versa
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// You have to explicitly specify false to disable the feature.
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//#define USE_STATIC_IP_CONFIG_IN_CP false
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// Use false to disable NTP config. Advisable when using Cellphone, Tablet to access Config Portal.
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// See Issue 23: On Android phone ConfigPortal is unresponsive (https://github.com/khoih-prog/ESP_WiFiManager/issues/23)
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#define USE_ESP_WIFIMANAGER_NTP false
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// Use true to enable CloudFlare NTP service. System can hang if you don't have Internet access while accessing CloudFlare
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// See Issue #21: CloudFlare link in the default portal (https://github.com/khoih-prog/ESP_WiFiManager/issues/21)
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#define USE_CLOUDFLARE_NTP false
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// New in v1.0.11
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#define USING_CORS_FEATURE true
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//////
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// Use USE_DHCP_IP == true for dynamic DHCP IP, false to use static IP which you have to change accordingly to your network
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#if (defined(USE_STATIC_IP_CONFIG_IN_CP) && !USE_STATIC_IP_CONFIG_IN_CP)
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// Force DHCP to be true
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#if defined(USE_DHCP_IP)
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#undef USE_DHCP_IP
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#endif
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#define USE_DHCP_IP true
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#else
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// You can select DHCP or Static IP here
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//#define USE_DHCP_IP true
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#define USE_DHCP_IP false
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#endif
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#if ( USE_DHCP_IP || ( defined(USE_STATIC_IP_CONFIG_IN_CP) && !USE_STATIC_IP_CONFIG_IN_CP ) )
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// Use DHCP
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#warning Using DHCP IP
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IPAddress stationIP = IPAddress(0, 0, 0, 0);
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IPAddress gatewayIP = IPAddress(192, 168, 2, 1);
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IPAddress netMask = IPAddress(255, 255, 255, 0);
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#else
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// Use static IP
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#warning Using static IP
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#ifdef ESP32
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IPAddress stationIP = IPAddress(192, 168, 2, 232);
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#else
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IPAddress stationIP = IPAddress(192, 168, 2, 186);
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#endif
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IPAddress gatewayIP = IPAddress(192, 168, 2, 1);
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IPAddress netMask = IPAddress(255, 255, 255, 0);
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#endif
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#define USE_CONFIGURABLE_DNS true
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IPAddress dns1IP = gatewayIP;
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IPAddress dns2IP = IPAddress(8, 8, 8, 8);
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#include <ESP_WiFiManager.h> //https://github.com/khoih-prog/ESP_WiFiManager
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// Function Prototypes
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uint8_t connectMultiWiFi(void);
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void heartBeatPrint(void)
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{
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static int num = 1;
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if (WiFi.status() == WL_CONNECTED)
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Serial.print("H"); // H means connected to WiFi
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else
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Serial.print("F"); // F means not connected to WiFi
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if (num == 80)
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{
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Serial.println();
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num = 1;
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}
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else if (num++ % 10 == 0)
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{
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Serial.print(" ");
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}
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}
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void check_WiFi(void)
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{
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if ( (WiFi.status() != WL_CONNECTED) )
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{
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Serial.println("\nWiFi lost. Call connectMultiWiFi in loop");
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connectMultiWiFi();
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}
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}
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void check_status(void)
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{
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static ulong checkstatus_timeout = 0;
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static ulong checkwifi_timeout = 0;
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static ulong current_millis;
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#define WIFICHECK_INTERVAL 1000L
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#define HEARTBEAT_INTERVAL 10000L
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current_millis = millis();
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// Check WiFi every WIFICHECK_INTERVAL (1) seconds.
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if ((current_millis > checkwifi_timeout) || (checkwifi_timeout == 0))
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{
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check_WiFi();
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checkwifi_timeout = current_millis + WIFICHECK_INTERVAL;
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}
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// Print hearbeat every HEARTBEAT_INTERVAL (10) seconds.
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if ((current_millis > checkstatus_timeout) || (checkstatus_timeout == 0))
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{
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heartBeatPrint();
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checkstatus_timeout = current_millis + HEARTBEAT_INTERVAL;
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}
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}
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void loadConfigData(void)
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{
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File file = FileFS.open(CONFIG_FILENAME, "r");
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LOGERROR(F("LoadWiFiCfgFile "));
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if (file)
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{
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file.readBytes((char *) &WM_config, sizeof(WM_config));
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file.close();
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LOGERROR(F("OK"));
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}
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else
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{
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LOGERROR(F("failed"));
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}
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}
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void saveConfigData(void)
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{
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File file = FileFS.open(CONFIG_FILENAME, "w");
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LOGERROR(F("SaveWiFiCfgFile "));
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if (file)
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{
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file.write((uint8_t*) &WM_config, sizeof(WM_config));
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file.close();
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LOGERROR(F("OK"));
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}
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else
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{
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LOGERROR(F("failed"));
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}
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}
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uint8_t connectMultiWiFi(void)
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{
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#if ESP32
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// For ESP32, this better be 0 to shorten the connect time
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#define WIFI_MULTI_1ST_CONNECT_WAITING_MS 0
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#else
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// For ESP8266, this better be 2200 to enable connect the 1st time
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#define WIFI_MULTI_1ST_CONNECT_WAITING_MS 2200L
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#endif
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#define WIFI_MULTI_CONNECT_WAITING_MS 100L
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uint8_t status;
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LOGERROR(F("ConnectMultiWiFi with :"));
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if ( (Router_SSID != "") && (Router_Pass != "") )
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{
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LOGERROR3(F("* Flash-stored Router_SSID = "), Router_SSID, F(", Router_Pass = "), Router_Pass );
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}
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for (uint8_t i = 0; i < NUM_WIFI_CREDENTIALS; i++)
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{
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// Don't permit NULL SSID and password len < MIN_AP_PASSWORD_SIZE (8)
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if ( (String(WM_config.WiFi_Creds[i].wifi_ssid) != "") && (strlen(WM_config.WiFi_Creds[i].wifi_pw) >= MIN_AP_PASSWORD_SIZE) )
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{
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LOGERROR3(F("* Additional SSID = "), WM_config.WiFi_Creds[i].wifi_ssid, F(", PW = "), WM_config.WiFi_Creds[i].wifi_pw );
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}
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}
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LOGERROR(F("Connecting MultiWifi..."));
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WiFi.mode(WIFI_STA);
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#if !USE_DHCP_IP
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#if USE_CONFIGURABLE_DNS
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// Set static IP, Gateway, Subnetmask, DNS1 and DNS2. New in v1.0.5
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WiFi.config(stationIP, gatewayIP, netMask, dns1IP, dns2IP);
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#else
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// Set static IP, Gateway, Subnetmask, Use auto DNS1 and DNS2.
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WiFi.config(stationIP, gatewayIP, netMask);
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#endif
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#endif
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int i = 0;
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status = wifiMulti.run();
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delay(WIFI_MULTI_1ST_CONNECT_WAITING_MS);
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while ( ( i++ < 10 ) && ( status != WL_CONNECTED ) )
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{
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status = wifiMulti.run();
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if ( status == WL_CONNECTED )
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break;
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else
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delay(WIFI_MULTI_CONNECT_WAITING_MS);
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}
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if ( status == WL_CONNECTED )
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{
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LOGERROR1(F("WiFi connected after time: "), i);
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LOGERROR3(F("SSID:"), WiFi.SSID(), F(",RSSI="), WiFi.RSSI());
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LOGERROR3(F("Channel:"), WiFi.channel(), F(",IP address:"), WiFi.localIP() );
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}
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else
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LOGERROR(F("WiFi not connected"));
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return status;
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}
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void setup()
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{
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// put your setup code here, to run once:
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// initialize the LED digital pin as an output.
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pinMode(PIN_LED, OUTPUT);
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Serial.begin(115200);
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while (!Serial);
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Serial.print("\nStarting ConfigOnDoubleReset with DoubleResetDetect using " + String(FS_Name));
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Serial.println(" on " + String(ARDUINO_BOARD));
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Serial.setDebugOutput(false);
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if (FORMAT_FILESYSTEM)
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FileFS.format();
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// Format FileFS if not yet
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#ifdef ESP32
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if (!FileFS.begin(true))
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#else
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if (!FileFS.begin())
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#endif
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{
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Serial.print(FS_Name);
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Serial.println(F(" failed! AutoFormatting."));
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#ifdef ESP8266
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FileFS.format();
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#endif
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}
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drd = new DoubleResetDetector(DRD_TIMEOUT, DRD_ADDRESS);
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unsigned long startedAt = millis();
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//Local intialization. Once its business is done, there is no need to keep it around
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// Use this to default DHCP hostname to ESP8266-XXXXXX or ESP32-XXXXXX
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//ESP_WiFiManager ESP_wifiManager;
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// Use this to personalize DHCP hostname (RFC952 conformed)
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ESP_WiFiManager ESP_wifiManager("ConfigOnDoubleReset");
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//set custom ip for portal
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//ESP_wifiManager.setAPStaticIPConfig(IPAddress(192, 168, 100, 1), IPAddress(192, 168, 100, 1), IPAddress(255, 255, 255, 0));
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ESP_wifiManager.setMinimumSignalQuality(-1);
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// From v1.0.10 only
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// Set config portal channel, default = 1. Use 0 => random channel from 1-13
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ESP_wifiManager.setConfigPortalChannel(0);
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//////
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#if !USE_DHCP_IP
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#if USE_CONFIGURABLE_DNS
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// Set static IP, Gateway, Subnetmask, DNS1 and DNS2. New in v1.0.5
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ESP_wifiManager.setSTAStaticIPConfig(stationIP, gatewayIP, netMask, dns1IP, dns2IP);
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#else
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// Set static IP, Gateway, Subnetmask, Use auto DNS1 and DNS2.
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ESP_wifiManager.setSTAStaticIPConfig(stationIP, gatewayIP, netMask);
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#endif
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#endif
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// New from v1.1.1
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#if USING_CORS_FEATURE
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ESP_wifiManager.setCORSHeader("Your Access-Control-Allow-Origin");
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#endif
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// We can't use WiFi.SSID() in ESP32 as it's only valid after connected.
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// SSID and Password stored in ESP32 wifi_ap_record_t and wifi_config_t are also cleared in reboot
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// Have to create a new function to store in EEPROM/SPIFFS for this purpose
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Router_SSID = ESP_wifiManager.WiFi_SSID();
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Router_Pass = ESP_wifiManager.WiFi_Pass();
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//Remove this line if you do not want to see WiFi password printed
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Serial.println("Stored: SSID = " + Router_SSID + ", Pass = " + Router_Pass);
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// SSID to uppercase
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ssid.toUpperCase();
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// From v1.1.0, Don't permit NULL password
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if ( (Router_SSID != "") && (Router_Pass != "") )
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{
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LOGERROR3(F("* Add SSID = "), Router_SSID, F(", PW = "), Router_Pass);
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wifiMulti.addAP(Router_SSID.c_str(), Router_Pass.c_str());
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ESP_wifiManager.setConfigPortalTimeout(120); //If no access point name has been previously entered disable timeout.
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Serial.println("Got stored Credentials. Timeout 120s for Config Portal");
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}
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else
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{
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Serial.println("Open Config Portal without Timeout: No stored Credentials.");
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initialConfig = true;
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}
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if (drd->detectDoubleReset())
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{
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// DRD, disable timeout.
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ESP_wifiManager.setConfigPortalTimeout(0);
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Serial.println("Open Config Portal without Timeout: Double Reset Detected");
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initialConfig = true;
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}
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if (initialConfig)
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{
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Serial.println("Starting configuration portal.");
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digitalWrite(PIN_LED, LED_ON); // turn the LED on by making the voltage LOW to tell us we are in configuration mode.
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//sets timeout in seconds until configuration portal gets turned off.
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//If not specified device will remain in configuration mode until
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//switched off via webserver or device is restarted.
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//ESP_wifiManager.setConfigPortalTimeout(600);
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// Starts an access point
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if (!ESP_wifiManager.startConfigPortal((const char *) ssid.c_str(), password))
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Serial.println("Not connected to WiFi but continuing anyway.");
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else
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{
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Serial.println("WiFi connected...yeey :)");
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}
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// Stored for later usage, from v1.1.0, but clear first
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memset(&WM_config, 0, sizeof(WM_config));
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for (uint8_t i = 0; i < NUM_WIFI_CREDENTIALS; i++)
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{
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String tempSSID = ESP_wifiManager.getSSID(i);
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String tempPW = ESP_wifiManager.getPW(i);
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if (strlen(tempSSID.c_str()) < sizeof(WM_config.WiFi_Creds[i].wifi_ssid) - 1)
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strcpy(WM_config.WiFi_Creds[i].wifi_ssid, tempSSID.c_str());
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else
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strncpy(WM_config.WiFi_Creds[i].wifi_ssid, tempSSID.c_str(), sizeof(WM_config.WiFi_Creds[i].wifi_ssid) - 1);
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if (strlen(tempPW.c_str()) < sizeof(WM_config.WiFi_Creds[i].wifi_pw) - 1)
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strcpy(WM_config.WiFi_Creds[i].wifi_pw, tempPW.c_str());
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else
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strncpy(WM_config.WiFi_Creds[i].wifi_pw, tempPW.c_str(), sizeof(WM_config.WiFi_Creds[i].wifi_pw) - 1);
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// Don't permit NULL SSID and password len < MIN_AP_PASSWORD_SIZE (8)
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if ( (String(WM_config.WiFi_Creds[i].wifi_ssid) != "") && (strlen(WM_config.WiFi_Creds[i].wifi_pw) >= MIN_AP_PASSWORD_SIZE) )
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{
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LOGERROR3(F("* Add SSID = "), WM_config.WiFi_Creds[i].wifi_ssid, F(", PW = "), WM_config.WiFi_Creds[i].wifi_pw );
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wifiMulti.addAP(WM_config.WiFi_Creds[i].wifi_ssid, WM_config.WiFi_Creds[i].wifi_pw);
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}
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}
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saveConfigData();
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}
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digitalWrite(PIN_LED, LED_OFF); // Turn led off as we are not in configuration mode.
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startedAt = millis();
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if (!initialConfig)
|
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{
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// Load stored data, the addAP ready for MultiWiFi reconnection
|
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loadConfigData();
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|
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for (uint8_t i = 0; i < NUM_WIFI_CREDENTIALS; i++)
|
|
{
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// Don't permit NULL SSID and password len < MIN_AP_PASSWORD_SIZE (8)
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if ( (String(WM_config.WiFi_Creds[i].wifi_ssid) != "") && (strlen(WM_config.WiFi_Creds[i].wifi_pw) >= MIN_AP_PASSWORD_SIZE) )
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{
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LOGERROR3(F("* Add SSID = "), WM_config.WiFi_Creds[i].wifi_ssid, F(", PW = "), WM_config.WiFi_Creds[i].wifi_pw );
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wifiMulti.addAP(WM_config.WiFi_Creds[i].wifi_ssid, WM_config.WiFi_Creds[i].wifi_pw);
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}
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}
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if ( WiFi.status() != WL_CONNECTED )
|
|
{
|
|
Serial.println("ConnectMultiWiFi in setup");
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connectMultiWiFi();
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}
|
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}
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|
|
Serial.print("After waiting ");
|
|
Serial.print((float) (millis() - startedAt) / 1000L);
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|
Serial.print(" secs more in setup(), connection result is ");
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if (WiFi.status() == WL_CONNECTED)
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{
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Serial.print("connected. Local IP: ");
|
|
Serial.println(WiFi.localIP());
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}
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else
|
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Serial.println(ESP_wifiManager.getStatus(WiFi.status()));
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}
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void loop()
|
|
{
|
|
// Call the double reset detector loop method every so often,
|
|
// so that it can recognise when the timeout expires.
|
|
// You can also call drd.stop() when you wish to no longer
|
|
// consider the next reset as a double reset.
|
|
drd->loop();
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|
|
// put your main code here, to run repeatedly
|
|
check_status();
|
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}
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