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ConfigOnDRD_FS_MQTT_Ptr.ino
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/****************************************************************************************************************************
ConfigOnDRD_FS_MQTT_Ptr.ino
For ESP8266 / ESP32 boards
ESP_WiFiManager is a library for the ESP8266/ESP32 platform (https://github.com/esp8266/Arduino) to enable easy
configuration and reconfiguration of WiFi credentials using a Captive Portal. Inspired by:
http://www.esp8266.com/viewtopic.php?f=29&t=2520
https://github.com/chriscook8/esp-arduino-apboot
https://github.com/esp8266/Arduino/blob/master/libraries/DNSServer/examples/CaptivePortalAdvanced/
Modified from Tzapu https://github.com/tzapu/WiFiManager
and from Ken Taylor https://github.com/kentaylor
Built by Khoi Hoang https://github.com/khoih-prog/ESP_WiFiManager
Licensed under MIT license
*****************************************************************************************************************************/
/****************************************************************************************************************************
This example will open a Config Portal when there is no stored WiFi Credentials or when a DRD is detected.
You can reconfigure to use another pin, such as the convenience FLASH / BOOT button @ PIN_D0;.
A password is required to connect to the Config Portal so that only who know the password can access the Config Portal.
The Credentials, being input via Config Portal, will then be saved into LittleFS / SPIFFS file, and be used to connect to
Adafruit MQTT Server at "io.adafruit.com" and publish a Temperature Topic
Based on original sketch posted by "Marko"(https://github.com/wackoo-arduino) on https://forum.arduino.cc/index.php?topic=692108
*****************************************************************************************************************************/
#if !( defined(ESP8266) || defined(ESP32) )
#error This code is intended to run on the ESP8266 or ESP32 platform! Please check your Tools->Board setting.
#endif
#define ESP_WIFIMANAGER_VERSION_MIN_TARGET "ESP_WiFiManager v1.12.0"
#define ESP_WIFIMANAGER_VERSION_MIN 1012000
// Use from 0 to 4. Higher number, more debugging messages and memory usage.
#define _WIFIMGR_LOGLEVEL_ 1
// To not display stored SSIDs and PWDs on Config Portal, select false. Default is true
// Even the stored Credentials are not display, just leave them all blank to reconnect and reuse the stored Credentials
//#define DISPLAY_STORED_CREDENTIALS_IN_CP false
#include <Arduino.h> // for button
#include <OneButton.h> // for button
#include <FS.h>
// Now support ArduinoJson 6.0.0+ ( tested with v6.15.2 to v6.16.1 )
#include <ArduinoJson.h> // get it from https://arduinojson.org/ or install via Arduino library manager
//For ESP32, To use ESP32 Dev Module, QIO, Flash 4MB/80MHz, Upload 921600
//Ported to ESP32
#ifdef ESP32
#include <esp_wifi.h>
#include <WiFi.h>
#include <WiFiClient.h>
// From v1.1.0
#include <WiFiMulti.h>
WiFiMulti wifiMulti;
// LittleFS has higher priority than SPIFFS
#if ( defined(ESP_ARDUINO_VERSION_MAJOR) && (ESP_ARDUINO_VERSION_MAJOR >= 2) )
#define USE_LITTLEFS true
#define USE_SPIFFS false
#elif defined(ARDUINO_ESP32C3_DEV)
// For core v1.0.6-, ESP32-C3 only supporting SPIFFS and EEPROM. To use v2.0.0+ for LittleFS
#define USE_LITTLEFS false
#define USE_SPIFFS true
#endif
#if USE_LITTLEFS
// Use LittleFS
#include "FS.h"
// Check cores/esp32/esp_arduino_version.h and cores/esp32/core_version.h
//#if ( ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(2, 0, 0) ) //(ESP_ARDUINO_VERSION_MAJOR >= 2)
#if ( defined(ESP_ARDUINO_VERSION_MAJOR) && (ESP_ARDUINO_VERSION_MAJOR >= 2) )
#if (_WIFIMGR_LOGLEVEL_ > 3)
#warning Using ESP32 Core 1.0.6 or 2.0.0+
#endif
// The library has been merged into esp32 core from release 1.0.6
#include <LittleFS.h> // https://github.com/espressif/arduino-esp32/tree/master/libraries/LittleFS
FS* filesystem = &LittleFS;
#define FileFS LittleFS
#define FS_Name "LittleFS"
#else
#if (_WIFIMGR_LOGLEVEL_ > 3)
#warning Using ESP32 Core 1.0.5-. You must install LITTLEFS library
#endif
// The library has been merged into esp32 core from release 1.0.6
#include <LITTLEFS.h> // https://github.com/lorol/LITTLEFS
FS* filesystem = &LITTLEFS;
#define FileFS LITTLEFS
#define FS_Name "LittleFS"
#endif
#elif USE_SPIFFS
#include <SPIFFS.h>
FS* filesystem = &SPIFFS;
#define FileFS SPIFFS
#define FS_Name "SPIFFS"
#else
// Use FFat
#include <FFat.h>
FS* filesystem = &FFat;
#define FileFS FFat
#define FS_Name "FFat"
#endif
//////
#define LED_BUILTIN 2
#define LED_ON HIGH
#define LED_OFF LOW
#else
#include <ESP8266WiFi.h> //https://github.com/esp8266/Arduino
//needed for library
#include <DNSServer.h>
#include <ESP8266WebServer.h>
// From v1.1.0
#include <ESP8266WiFiMulti.h>
ESP8266WiFiMulti wifiMulti;
#define USE_LITTLEFS true
#if USE_LITTLEFS
#include <LittleFS.h>
FS* filesystem = &LittleFS;
#define FileFS LittleFS
#define FS_Name "LittleFS"
#else
FS* filesystem = &SPIFFS;
#define FileFS SPIFFS
#define FS_Name "SPIFFS"
#endif
//////
#define ESP_getChipId() (ESP.getChipId())
#define LED_ON LOW
#define LED_OFF HIGH
#endif
// These defines must be put before #include <ESP_DoubleResetDetector.h>
// to select where to store DoubleResetDetector's variable.
// For ESP32, You must select one to be true (EEPROM or SPIFFS)
// For ESP8266, You must select one to be true (RTC, EEPROM, SPIFFS or LITTLEFS)
// Otherwise, library will use default EEPROM storage
#ifdef ESP32
// These defines must be put before #include <ESP_DoubleResetDetector.h>
// to select where to store DoubleResetDetector's variable.
// For ESP32, You must select one to be true (EEPROM or SPIFFS)
// Otherwise, library will use default EEPROM storage
#if USE_LITTLEFS
#define ESP_DRD_USE_LITTLEFS true
#define ESP_DRD_USE_SPIFFS false
#define ESP_DRD_USE_EEPROM false
#elif USE_SPIFFS
#define ESP_DRD_USE_LITTLEFS false
#define ESP_DRD_USE_SPIFFS true
#define ESP_DRD_USE_EEPROM false
#else
#define ESP_DRD_USE_LITTLEFS false
#define ESP_DRD_USE_SPIFFS false
#define ESP_DRD_USE_EEPROM true
#endif
#else //ESP8266
// For DRD
// These defines must be put before #include <ESP_DoubleResetDetector.h>
// to select where to store DoubleResetDetector's variable.
// For ESP8266, You must select one to be true (RTC, EEPROM, SPIFFS or LITTLEFS)
// Otherwise, library will use default EEPROM storage
#if USE_LITTLEFS
#define ESP_DRD_USE_LITTLEFS true
#define ESP_DRD_USE_SPIFFS false
#else
#define ESP_DRD_USE_LITTLEFS false
#define ESP_DRD_USE_SPIFFS true
#endif
#define ESP_DRD_USE_EEPROM false
#define ESP8266_DRD_USE_RTC false
#endif
#define DOUBLERESETDETECTOR_DEBUG true //false
#include <ESP_DoubleResetDetector.h> //https://github.com/khoih-prog/ESP_DoubleResetDetector
// Number of seconds after reset during which a
// subseqent reset will be considered a double reset.
#define DRD_TIMEOUT 10
// RTC Memory Address for the DoubleResetDetector to use
#define DRD_ADDRESS 0
DoubleResetDetector* drd = NULL;
#include "Adafruit_MQTT.h" //https://github.com/adafruit/Adafruit_MQTT_Library
#include "Adafruit_MQTT_Client.h" //https://github.com/adafruit/Adafruit_MQTT_Library
const char* CONFIG_FILE = "/ConfigMQTT.json";
// Default configuration values for Adafruit IO MQTT
// This actually works
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT "1883" //1883, or 8883 for SSL
#define AIO_USERNAME "private" //Adafruit IO
#define AIO_KEY "private"
// Labels for custom parameters in WiFi manager
#define AIO_SERVER_Label "AIO_SERVER_Label"
#define AIO_SERVERPORT_Label "AIO_SERVERPORT_Label"
#define AIO_USERNAME_Label "AIO_USERNAME_Label"
#define AIO_KEY_Label "AIO_KEY_Label"
// Just dummy topics. To be updated later when got valid data from FS or Config Portal
String MQTT_Pub_Topic = "private/feeds/Temperature";
// Variables to save custom parameters to...
// I would like to use these instead of #defines
#define custom_AIO_SERVER_LEN 20
#define custom_AIO_PORT_LEN 5
#define custom_AIO_USERNAME_LEN 20
#define custom_AIO_KEY_LEN 40
char custom_AIO_SERVER[custom_AIO_SERVER_LEN];
char custom_AIO_SERVERPORT[custom_AIO_PORT_LEN];
char custom_AIO_USERNAME[custom_AIO_USERNAME_LEN];
char custom_AIO_KEY[custom_AIO_KEY_LEN];
// Function Prototypes
void MQTT_connect();
bool readConfigFile();
bool writeConfigFile();
// From v1.1.1
// You only need to format the filesystem once
//#define FORMAT_FILESYSTEM true
#define FORMAT_FILESYSTEM false
#define MIN_AP_PASSWORD_SIZE 8
#define SSID_MAX_LEN 32
//From v1.0.10, WPA2 passwords can be up to 63 characters long.
#define PASS_MAX_LEN 64
typedef struct
{
char wifi_ssid[SSID_MAX_LEN];
char wifi_pw [PASS_MAX_LEN];
} WiFi_Credentials;
typedef struct
{
String wifi_ssid;
String wifi_pw;
} WiFi_Credentials_String;
#define NUM_WIFI_CREDENTIALS 2
// Assuming max 491 chars
#define TZNAME_MAX_LEN 50
#define TIMEZONE_MAX_LEN 50
typedef struct
{
WiFi_Credentials WiFi_Creds [NUM_WIFI_CREDENTIALS];
char TZ_Name[TZNAME_MAX_LEN]; // "America/Toronto"
char TZ[TIMEZONE_MAX_LEN]; // "EST5EDT,M3.2.0,M11.1.0"
uint16_t checksum;
} WM_Config;
WM_Config WM_config;
#define CONFIG_FILENAME F("/wifi_cred.dat")
//////
// Indicates whether ESP has WiFi credentials saved from previous session, or double reset detected
bool initialConfig = false;
// Use false if you don't like to display Available Pages in Information Page of Config Portal
// Comment out or use true to display Available Pages in Information Page of Config Portal
// Must be placed before #include <ESPAsync_WiFiManager.h>
#define USE_AVAILABLE_PAGES false
// From v1.0.10 to permit disable/enable StaticIP configuration in Config Portal from sketch. Valid only if DHCP is used.
// You'll loose the feature of dynamically changing from DHCP to static IP, or vice versa
// You have to explicitly specify false to disable the feature.
//#define USE_STATIC_IP_CONFIG_IN_CP false
// Use false to disable NTP config. Advisable when using Cellphone, Tablet to access Config Portal.
// See Issue 23: On Android phone ConfigPortal is unresponsive (https://github.com/khoih-prog/ESP_WiFiManager/issues/23)
#define USE_ESP_WIFIMANAGER_NTP true
// Just use enough to save memory. On ESP8266, can cause blank ConfigPortal screen
// if using too much memory
#define USING_AFRICA false
#define USING_AMERICA true
#define USING_ANTARCTICA false
#define USING_ASIA false
#define USING_ATLANTIC false
#define USING_AUSTRALIA false
#define USING_EUROPE false
#define USING_INDIAN false
#define USING_PACIFIC false
#define USING_ETC_GMT false
// Use true to enable CloudFlare NTP service. System can hang if you don't have Internet access while accessing CloudFlare
// See Issue #21: CloudFlare link in the default portal (https://github.com/khoih-prog/ESP_WiFiManager/issues/21)
#define USE_CLOUDFLARE_NTP false
// New in v1.0.11
#define USING_CORS_FEATURE true
////////////////////////////////////////////
// Use USE_DHCP_IP == true for dynamic DHCP IP, false to use static IP which you have to change accordingly to your network
#if (defined(USE_STATIC_IP_CONFIG_IN_CP) && !USE_STATIC_IP_CONFIG_IN_CP)
// Force DHCP to be true
#if defined(USE_DHCP_IP)
#undef USE_DHCP_IP
#endif
#define USE_DHCP_IP true
#else
// You can select DHCP or Static IP here
#define USE_DHCP_IP true
//#define USE_DHCP_IP false
#endif
#if ( USE_DHCP_IP )
// Use DHCP
#if (_WIFIMGR_LOGLEVEL_ > 3)
#warning Using DHCP IP
#endif
IPAddress stationIP = IPAddress(0, 0, 0, 0);
IPAddress gatewayIP = IPAddress(192, 168, 2, 1);
IPAddress netMask = IPAddress(255, 255, 255, 0);
#else
// Use static IP
#if (_WIFIMGR_LOGLEVEL_ > 3)
#warning Using static IP
#endif
#ifdef ESP32
IPAddress stationIP = IPAddress(192, 168, 2, 232);
#else
IPAddress stationIP = IPAddress(192, 168, 2, 186);
#endif
IPAddress gatewayIP = IPAddress(192, 168, 2, 1);
IPAddress netMask = IPAddress(255, 255, 255, 0);
#endif
////////////////////////////////////////////
#define USE_CONFIGURABLE_DNS true
IPAddress dns1IP = gatewayIP;
IPAddress dns2IP = IPAddress(8, 8, 8, 8);
#define USE_CUSTOM_AP_IP false
// New in v1.4.0
IPAddress APStaticIP = IPAddress(192, 168, 100, 1);
IPAddress APStaticGW = IPAddress(192, 168, 100, 1);
IPAddress APStaticSN = IPAddress(255, 255, 255, 0);
// Must be placed before #include <ESP_WiFiManager.h>, or default port 80 will be used
//#define HTTP_PORT 8080
#include <ESP_WiFiManager.h> //https://github.com/khoih-prog/ESP_WiFiManager
// Redundant, for v1.8.0 only
//#include <ESP_WiFiManager-Impl.h> //https://github.com/khoih-prog/ESP_WiFiManager
// For Config Portal
// SSID and PW for Config Portal
String ssid = "ESP_" + String(ESP_getChipId(), HEX);
String password;
// SSID and PW for your Router
String Router_SSID;
String Router_Pass;
/////////////////////////////////////////////////////
#define HTTP_PORT 80
// Create an ESP32 WiFiClient class to connect to the MQTT server
WiFiClient *client = NULL;
Adafruit_MQTT_Client *mqtt = NULL;
Adafruit_MQTT_Publish *Temperature = NULL;
///////////////////////////////////////////
// New in v1.4.0
/******************************************
* // Defined in ESPAsync_WiFiManager.h
typedef struct
{
IPAddress _ap_static_ip;
IPAddress _ap_static_gw;
IPAddress _ap_static_sn;
} WiFi_AP_IPConfig;
typedef struct
{
IPAddress _sta_static_ip;
IPAddress _sta_static_gw;
IPAddress _sta_static_sn;
#if USE_CONFIGURABLE_DNS
IPAddress _sta_static_dns1;
IPAddress _sta_static_dns2;
#endif
} WiFi_STA_IPConfig;
******************************************/
WiFi_AP_IPConfig WM_AP_IPconfig;
WiFi_STA_IPConfig WM_STA_IPconfig;
void initAPIPConfigStruct(WiFi_AP_IPConfig &in_WM_AP_IPconfig)
{
in_WM_AP_IPconfig._ap_static_ip = APStaticIP;
in_WM_AP_IPconfig._ap_static_gw = APStaticGW;
in_WM_AP_IPconfig._ap_static_sn = APStaticSN;
}
void initSTAIPConfigStruct(WiFi_STA_IPConfig &in_WM_STA_IPconfig)
{
in_WM_STA_IPconfig._sta_static_ip = stationIP;
in_WM_STA_IPconfig._sta_static_gw = gatewayIP;
in_WM_STA_IPconfig._sta_static_sn = netMask;
#if USE_CONFIGURABLE_DNS
in_WM_STA_IPconfig._sta_static_dns1 = dns1IP;
in_WM_STA_IPconfig._sta_static_dns2 = dns2IP;
#endif
}
void displayIPConfigStruct(WiFi_STA_IPConfig in_WM_STA_IPconfig)
{
LOGERROR3(F("stationIP ="), in_WM_STA_IPconfig._sta_static_ip, ", gatewayIP =", in_WM_STA_IPconfig._sta_static_gw);
LOGERROR1(F("netMask ="), in_WM_STA_IPconfig._sta_static_sn);
#if USE_CONFIGURABLE_DNS
LOGERROR3(F("dns1IP ="), in_WM_STA_IPconfig._sta_static_dns1, ", dns2IP =", in_WM_STA_IPconfig._sta_static_dns2);
#endif
}
void configWiFi(WiFi_STA_IPConfig in_WM_STA_IPconfig)
{
#if USE_CONFIGURABLE_DNS
// Set static IP, Gateway, Subnetmask, DNS1 and DNS2. New in v1.0.5
WiFi.config(in_WM_STA_IPconfig._sta_static_ip, in_WM_STA_IPconfig._sta_static_gw, in_WM_STA_IPconfig._sta_static_sn, in_WM_STA_IPconfig._sta_static_dns1, in_WM_STA_IPconfig._sta_static_dns2);
#else
// Set static IP, Gateway, Subnetmask, Use auto DNS1 and DNS2.
WiFi.config(in_WM_STA_IPconfig._sta_static_ip, in_WM_STA_IPconfig._sta_static_gw, in_WM_STA_IPconfig._sta_static_sn);
#endif
}
///////////////////////////////////////////
uint8_t connectMultiWiFi()
{
#if ESP32
// For ESP32, this better be 0 to shorten the connect time.
// For ESP32-S2/C3, must be > 500
#if ( USING_ESP32_S2 || USING_ESP32_C3 )
#define WIFI_MULTI_1ST_CONNECT_WAITING_MS 500L
#else
// For ESP32 core v1.0.6, must be >= 500
#define WIFI_MULTI_1ST_CONNECT_WAITING_MS 800L
#endif
#else
// For ESP8266, this better be 2200 to enable connect the 1st time
#define WIFI_MULTI_1ST_CONNECT_WAITING_MS 2200L
#endif
#define WIFI_MULTI_CONNECT_WAITING_MS 500L
uint8_t status;
//WiFi.mode(WIFI_STA);
LOGERROR(F("ConnectMultiWiFi with :"));
if ( (Router_SSID != "") && (Router_Pass != "") )
{
LOGERROR3(F("* Flash-stored Router_SSID = "), Router_SSID, F(", Router_Pass = "), Router_Pass );
LOGERROR3(F("* Add SSID = "), Router_SSID, F(", PW = "), Router_Pass );
wifiMulti.addAP(Router_SSID.c_str(), Router_Pass.c_str());
}
for (uint8_t i = 0; i < NUM_WIFI_CREDENTIALS; i++)
{
// Don't permit NULL SSID and password len < MIN_AP_PASSWORD_SIZE (8)
if ( (String(WM_config.WiFi_Creds[i].wifi_ssid) != "") && (strlen(WM_config.WiFi_Creds[i].wifi_pw) >= MIN_AP_PASSWORD_SIZE) )
{
LOGERROR3(F("* Additional SSID = "), WM_config.WiFi_Creds[i].wifi_ssid, F(", PW = "), WM_config.WiFi_Creds[i].wifi_pw );
}
}
LOGERROR(F("Connecting MultiWifi..."));
//WiFi.mode(WIFI_STA);
#if !USE_DHCP_IP
// New in v1.4.0
configWiFi(WM_STA_IPconfig);
//////
#endif
int i = 0;
status = wifiMulti.run();
delay(WIFI_MULTI_1ST_CONNECT_WAITING_MS);
while ( ( i++ < 20 ) && ( status != WL_CONNECTED ) )
{
status = WiFi.status();
if ( status == WL_CONNECTED )
break;
else
delay(WIFI_MULTI_CONNECT_WAITING_MS);
}
if ( status == WL_CONNECTED )
{
LOGERROR1(F("WiFi connected after time: "), i);
LOGERROR3(F("SSID:"), WiFi.SSID(), F(",RSSI="), WiFi.RSSI());
LOGERROR3(F("Channel:"), WiFi.channel(), F(",IP address:"), WiFi.localIP() );
}
else
{
LOGERROR(F("WiFi not connected"));
// To avoid unnecessary DRD
drd->loop();
#if ESP8266
ESP.reset();
#else
ESP.restart();
#endif
}
return status;
}
void toggleLED()
{
//toggle state
digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
}
#if USE_ESP_WIFIMANAGER_NTP
void printLocalTime()
{
#if ESP8266
static time_t now;
now = time(nullptr);
if ( now > 1451602800 )
{
Serial.print("Local Date/Time: ");
Serial.print(ctime(&now));
}
#else
struct tm timeinfo;
getLocalTime( &timeinfo );
// Valid only if year > 2000.
// You can get from timeinfo : tm_year, tm_mon, tm_mday, tm_hour, tm_min, tm_sec
if (timeinfo.tm_year > 100 )
{
Serial.print("Local Date/Time: ");
Serial.print( asctime( &timeinfo ) );
}
#endif
}
#endif
void heartBeatPrint()
{
#if USE_ESP_WIFIMANAGER_NTP
printLocalTime();
#else
static int num = 1;
if (WiFi.status() == WL_CONNECTED)
Serial.print(F("W")); // W means connected to WiFi
else
Serial.print(F("N")); // N means not connected to WiFi
if (num == 40)
{
Serial.println();
num = 1;
}
else if (num++ % 5 == 0)
{
Serial.print(F(" "));
}
#endif
}
void publishMQTT()
{
float some_number = 25.0 + (float) ( millis() % 100 ) / 100;
// For debug only
//Serial.print(F("Published Temp = "));
//Serial.println(some_number);
MQTT_connect();
if (Temperature->publish(some_number))
{
Serial.print(F("T")); // T means publishing OK
}
else
{
Serial.print(F("F")); // F means publishing failure
}
}
void check_WiFi()
{
if ( (WiFi.status() != WL_CONNECTED) )
{
Serial.println(F("\nWiFi lost. Call connectMultiWiFi in loop"));
connectMultiWiFi();
}
}
void check_status()
{
static ulong checkstatus_timeout = 0;
static ulong LEDstatus_timeout = 0;
static ulong checkwifi_timeout = 0;
static ulong mqtt_publish_timeout = 0;
ulong current_millis = millis();
#define LED_INTERVAL 2000L
#define PUBLISH_INTERVAL 90000L
#define WIFICHECK_INTERVAL 1000L
#if USE_ESP_WIFIMANAGER_NTP
#define HEARTBEAT_INTERVAL 60000L
#else
#define HEARTBEAT_INTERVAL 10000L
#endif
// Check WiFi every WIFICHECK_INTERVAL (1) seconds.
if ((current_millis > checkwifi_timeout) || (checkwifi_timeout == 0))
{
check_WiFi();
checkwifi_timeout = current_millis + WIFICHECK_INTERVAL;
}
if ((current_millis > LEDstatus_timeout) || (LEDstatus_timeout == 0))
{
// Toggle LED at LED_INTERVAL = 2s
toggleLED();
LEDstatus_timeout = current_millis + LED_INTERVAL;
}
// Print hearbeat every HEARTBEAT_INTERVAL (10) seconds.
if ((current_millis > checkstatus_timeout) || (checkstatus_timeout == 0))
{
heartBeatPrint();
checkstatus_timeout = current_millis + HEARTBEAT_INTERVAL;
}
// Check every PUBLISH_INTERVAL (60) seconds.
if ((current_millis > mqtt_publish_timeout) || (mqtt_publish_timeout == 0))
{
if (WiFi.status() == WL_CONNECTED)
{
publishMQTT();
}
mqtt_publish_timeout = current_millis + PUBLISH_INTERVAL;
}
}
int calcChecksum(uint8_t* address, uint16_t sizeToCalc)
{
uint16_t checkSum = 0;
for (uint16_t index = 0; index < sizeToCalc; index++)
{
checkSum += * ( ( (byte*) address ) + index);
}
return checkSum;
}
bool loadConfigData()
{
File file = FileFS.open(CONFIG_FILENAME, "r");
LOGERROR(F("LoadWiFiCfgFile "));
memset((void *) &WM_config, 0, sizeof(WM_config));
// New in v1.4.0
memset((void *) &WM_STA_IPconfig, 0, sizeof(WM_STA_IPconfig));
//////
if (file)
{
file.readBytes((char *) &WM_config, sizeof(WM_config));
// New in v1.4.0
file.readBytes((char *) &WM_STA_IPconfig, sizeof(WM_STA_IPconfig));
//////
file.close();
LOGERROR(F("OK"));
if ( WM_config.checksum != calcChecksum( (uint8_t*) &WM_config, sizeof(WM_config) - sizeof(WM_config.checksum) ) )
{
LOGERROR(F("WM_config checksum wrong"));
return false;
}
// New in v1.4.0
displayIPConfigStruct(WM_STA_IPconfig);
//////
return true;
}
else
{
LOGERROR(F("failed"));
return false;
}
}
void saveConfigData()
{
File file = FileFS.open(CONFIG_FILENAME, "w");
LOGERROR(F("SaveWiFiCfgFile "));
if (file)
{
WM_config.checksum = calcChecksum( (uint8_t*) &WM_config, sizeof(WM_config) - sizeof(WM_config.checksum) );
file.write((uint8_t*) &WM_config, sizeof(WM_config));
displayIPConfigStruct(WM_STA_IPconfig);
// New in v1.4.0
file.write((uint8_t*) &WM_STA_IPconfig, sizeof(WM_STA_IPconfig));
//////
file.close();
LOGERROR(F("OK"));
}
else
{
LOGERROR(F("failed"));
}
}
void deleteOldInstances()
{
// Delete previous instances
if (mqtt)
{
delete mqtt;
mqtt = NULL;
Serial.println(F("Deleting old MQTT object"));
}
if (Temperature)
{
delete Temperature;
Temperature = NULL;
Serial.println(F("Deleting old Temperature object"));
}
}
void createNewInstances()
{
if (!client)
{
client = new WiFiClient;
Serial.print(F("\nCreating new WiFi client object : "));
Serial.println(client? F("OK") : F("failed"));
}
// Create new instances from new data
if (!mqtt)
{
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
mqtt = new Adafruit_MQTT_Client(client, custom_AIO_SERVER, atoi(custom_AIO_SERVERPORT), custom_AIO_USERNAME, custom_AIO_KEY);
Serial.print(F("Creating new MQTT object : "));
if (mqtt)
{
Serial.println(F("OK"));
Serial.println(String("AIO_SERVER = ") + custom_AIO_SERVER + ", AIO_SERVERPORT = " + custom_AIO_SERVERPORT);
Serial.println(String("AIO_USERNAME = ") + custom_AIO_USERNAME + ", AIO_KEY = " + custom_AIO_KEY);
}
else
Serial.println(F("Failed"));
}
if (!Temperature)
{
Serial.print(F("Creating new MQTT_Pub_Topic, Temperature = "));
Serial.println(MQTT_Pub_Topic);
Temperature = new Adafruit_MQTT_Publish(mqtt, MQTT_Pub_Topic.c_str());
Serial.print(F("Creating new Temperature object : "));
if (Temperature)
{
Serial.println(F("OK"));
Serial.println(String("Temperature MQTT_Pub_Topic = ") + MQTT_Pub_Topic);
}
else
Serial.println(F("Failed"));
}
}
void wifi_manager()
{
Serial.println(F("\nConfig Portal requested."));
digitalWrite(LED_BUILTIN, LED_ON); // turn the LED on by making the voltage LOW to tell us we are in configuration mode.
//Local intialization. Once its business is done, there is no need to keep it around
ESP_WiFiManager ESP_wifiManager("ConfigOnDRD_FS-MQTT");;
//Check if there is stored WiFi router/password credentials.
//If not found, device will remain in configuration mode until switched off via webserver.
Serial.print(F("Opening Configuration Portal. "));
Router_SSID = ESP_wifiManager.WiFi_SSID();
Router_Pass = ESP_wifiManager.WiFi_Pass();
// From v1.1.1, Don't permit NULL password
if ( !initialConfig && (Router_SSID != "") && (Router_Pass != "") )
{
//If valid AP credential and not DRD, set timeout 120s.
ESP_wifiManager.setConfigPortalTimeout(120);
Serial.println(F("Got stored Credentials. Timeout 120s"));
}
else
{
ESP_wifiManager.setConfigPortalTimeout(0);
Serial.print(F("No timeout : "));
if (initialConfig)
{
Serial.println(F("DRD or No stored Credentials.."));
}
else
{
Serial.println(F("No stored Credentials."));
}
}
//Local intialization. Once its business is done, there is no need to keep it around
// Extra parameters to be configured
// After connecting, parameter.getValue() will get you the configured value
// Format: <ID> <Placeholder text> <default value> <length> <custom HTML> <label placement>
// (*** we are not using <custom HTML> and <label placement> ***)
// AIO_SERVER
ESP_WMParameter AIO_SERVER_FIELD(AIO_SERVER_Label, "AIO SERVER", custom_AIO_SERVER, custom_AIO_SERVER_LEN + 1);
// AIO_SERVERPORT
ESP_WMParameter AIO_SERVERPORT_FIELD(AIO_SERVERPORT_Label, "AIO SERVER PORT", custom_AIO_SERVERPORT, custom_AIO_PORT_LEN + 1);
// AIO_USERNAME
ESP_WMParameter AIO_USERNAME_FIELD(AIO_USERNAME_Label, "AIO USERNAME", custom_AIO_USERNAME, custom_AIO_USERNAME_LEN + 1);
// AIO_KEY
ESP_WMParameter AIO_KEY_FIELD(AIO_KEY_Label, "AIO KEY", custom_AIO_KEY, custom_AIO_KEY_LEN + 1);
// add all parameters here
// order of adding is not important
ESP_wifiManager.addParameter(&AIO_SERVER_FIELD);
ESP_wifiManager.addParameter(&AIO_SERVERPORT_FIELD);
ESP_wifiManager.addParameter(&AIO_USERNAME_FIELD);
ESP_wifiManager.addParameter(&AIO_KEY_FIELD);
// Sets timeout in seconds until configuration portal gets turned off.
// If not specified device will remain in configuration mode until
// switched off via webserver or device is restarted.
//ESP_wifiManager.setConfigPortalTimeout(120);
ESP_wifiManager.setMinimumSignalQuality(-1);
// From v1.0.10 only
// Set config portal channel, default = 1. Use 0 => random channel from 1-13
ESP_wifiManager.setConfigPortalChannel(0);
//////
#if USE_CUSTOM_AP_IP
//set custom ip for portal
// New in v1.4.0
ESP_wifiManager.setAPStaticIPConfig(WM_AP_IPconfig);
//////
#endif
#if !USE_DHCP_IP
// Set (static IP, Gateway, Subnetmask, DNS1 and DNS2) or (IP, Gateway, Subnetmask). New in v1.0.5
// New in v1.4.0
ESP_wifiManager.setSTAStaticIPConfig(WM_STA_IPconfig);
//////
#endif
// New from v1.1.1
#if USING_CORS_FEATURE
ESP_wifiManager.setCORSHeader("Your Access-Control-Allow-Origin");
#endif
// Start an access point
// and goes into a blocking loop awaiting configuration.
// Once the user leaves the portal with the exit button
// processing will continue
// SSID to uppercase
ssid.toUpperCase();
password = "My" + ssid;
Serial.print(F("Starting configuration portal @ "));
#if USE_CUSTOM_AP_IP
Serial.print(APStaticIP);
#else
Serial.print(F("192.168.4.1"));
#endif
#if defined(HTTP_PORT_TO_USE)
Serial.print(F(":")); Serial.print(HTTP_PORT_TO_USE);
#endif
Serial.print(F(", SSID = "));
Serial.print(ssid);
Serial.print(F(", PWD = "));
Serial.println(password);
#if DISPLAY_STORED_CREDENTIALS_IN_CP
// New. Update Credentials, got from loadConfigData(), to display on CP
ESP_wifiManager.setCredentials(WM_config.WiFi_Creds[0].wifi_ssid, WM_config.WiFi_Creds[0].wifi_pw,
WM_config.WiFi_Creds[1].wifi_ssid, WM_config.WiFi_Creds[1].wifi_pw);
#endif
if (!ESP_wifiManager.startConfigPortal((const char *) ssid.c_str(), password.c_str()))
{
Serial.println(F("Not connected to WiFi but continuing anyway."));
}
else
{
// If you get here you have connected to the WiFi
Serial.println(F("Connected...yeey :)"));
Serial.print(F("Local IP: "));
Serial.println(WiFi.localIP());
}
// Only clear then save data if CP entered and with new valid Credentials
// No CP => stored getSSID() = ""
if ( String(ESP_wifiManager.getSSID(0)) != "" && String(ESP_wifiManager.getSSID(1)) != "" )
{
// Stored for later usage, from v1.1.0, but clear first
memset(&WM_config, 0, sizeof(WM_config));
for (uint8_t i = 0; i < NUM_WIFI_CREDENTIALS; i++)