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[GH-ISSUE #1614] Erase Configuration, setShowStaticFields and dynamic/ static Ip setting #1376

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opened 2026-02-28 01:29:49 +03:00 by kerem · 4 comments

kerem commented

2026-02-28 01:29:49 +03:00

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Originally created by @kutty1999 on GitHub (May 24, 2023).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1614

WiFimanager Branch/Release: 2.0.16-rc.2

Esp8266/Esp32: Esp8266

Hardware: ESP-12e

Core Version: 3.1.2

Description

I have no idea from get dns from the field tab in webpage and store in json in code i declared default dns as 8.8.8.8
then I need same as above for secondary dns.

I have faced three problems.
The first one, on demand, I tried to erase the older configuration but it didn't work.
The second one is static,dns, and custom parameter fields disappear after the initial configuration I declared the true value in the function. it will reappear after erase the configuration from the webpage.
The third one is not switching between dynamic and static IP iam trying to switch the IP mode but it does not make it.

Settings in IDE

Module: NodeMcu

Additional libraries: PubSubClient, ESP8266WiFi

Sketch

#include <FS.h>                   //this needs to be first, or it all crashes and burns...
#include <ESP8266WiFi.h>
#include <WiFiManager.h>          //https://github.com/tzapu/WiFiManager
#include <PubSubClient.h>       // PubSub Library used for MQTT protocol must needed very important.
#include <ESP8266WebServer.h>
#include <DNSServer.h>
#include <ArduinoJson.h>          //https://github.com/bblanchon/ArduinoJson
#include <ESPping.h>
#ifdef ESP32
  #include <SPIFFS.h>
#endif

#define buttonPin 12    // Reset button pin
#define LONG_PRESS_TIME 5000   // long press of reset button time in milliseconds 5000
const char* remote_host = "www.google.com"; //Host name to ping for internet connectivity.
char mqtt_server[40] = "xxxx";
char user[20] = "xxxx";             // Username of MQTT Broker
char pass[30] = "xxxxx";           // Password of MQTT Broker
int wifiStatus;                   // TO check the WiFi status.
WiFiClient espClient;                    
PubSubClient client(espClient);

WiFiManager wifiManager;

//default custom static IP
char static_ip[16]="10.0.1.56";
char static_gw[16]="10.0.1.1";
char static_sn[16]="255.255.255.0";
char dns[16]="8.8.8.8";
//flag for saving data
bool shouldSaveConfig = false;

//callback notifying us of the need to save config
void saveConfigCallback () {
  Serial.println("Should save config");
  shouldSaveConfig = true;
}
 
void reconnect() {
  // Loop until we're reconnected
 if (!client.connected()) { 
    Serial.print("Attempting MQTT connection...");
    digitalWrite(BUILTIN_LED, LOW);
    // Create a random client ID
    String clientId = "ESP8266Client-";   
    clientId += String(random(0xffff), HEX);   /*************************** Client Id generated ramdomly *************************/
    // Attempt to connect
    if (client.connect(clientId.c_str(),user,pass)) { /*********************** Connection init to MQTT server *********/
       client.subscribe(sub_topic);  /********************************** Subscribe starts here *****************************/
       wifiStatus = WiFi.status();  
       if(wifiStatus == WL_CONNECTED){
         Serial.println("");
         Serial.println("Your Module is connected!");  
         Serial.print("Connected to ");
         Serial.println(WiFi.SSID());
         Serial.print("Local IP: ");
         Serial.println(WiFi.localIP());
         Serial.print("Gateway IP: ");
         Serial.println(WiFi.gatewayIP());
         Serial.print("Subnet Mask: ");
         Serial.println(WiFi.subnetMask());
         Serial.print("DNS: ");
         Serial.println(WiFi.dnsIP());
         Serial.print("Module MAC address is: ");
         Serial.println(sub_topic);        
        }
       else{
        Serial.println("");
        Serial.println("WiFi not connected");
     }
     if (Ping.ping(remote_host) > 0){ /***************************** Ping the remote host to check the internet status *******/
     Serial.printf("Response time : %d/%.2f/%d ms\n", Ping.minTime(), Ping.averageTime(), Ping.maxTime());
     Serial.println("Ping Success!! ");
     } else {
     Serial.println("Ping Error !");
     }
    }
    else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 1 second");  
      digitalWrite(BUILTIN_LED, HIGH);    
      delay(500);
    }
  }
} 

void setup() {
  Serial.begin(115200);
  Serial.println();
  pinMode(buttonPin, INPUT_PULLUP);
  digitalWrite(buttonPin, LOW); /******************* During start up the PIN is LOW state after pressing it this becomes HIGH *********/
  client.setServer(mqtt_server, 1883);        /******************** MQTT server connects in 1883 port *****************************/

  //read configuration from FS json
  Serial.println("mounting FS...");

  if (SPIFFS.begin()) {
    Serial.println("mounted file system");
    if (SPIFFS.exists("/config.json")) {
      //file exists, reading and loading
      Serial.println("reading config file");
      File configFile = SPIFFS.open("/config.json", "r");
      if (configFile) {
        Serial.println("opened config file");
        size_t size = configFile.size();
        // Allocate a buffer to store contents of the file.
        std::unique_ptr<char[]> buf(new char[size]);

        configFile.readBytes(buf.get(), size);
   #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6
        DynamicJsonDocument json(1024);
        auto deserializeError = deserializeJson(json, buf.get());
        serializeJson(json, Serial);
        if ( ! deserializeError ) {
   #else
        DynamicJsonBuffer jsonBuffer;
        JsonObject& json = jsonBuffer.parseObject(buf.get());
        json.printTo(Serial);
        if (json.success()) {
   #endif
          Serial.println("\nparsed json");
          
          strcpy(mqtt_server, json["mqtt_server"]);

          if (json["ip"]) {
            Serial.println("setting custom ip from config");
            strcpy(static_ip, json["ip"]);
            strcpy(static_gw, json["gateway"]);
            strcpy(static_sn, json["subnet"]);
            Serial.println(static_ip);
          } else {
            Serial.println("no custom ip in config");
          }
        } else {
          Serial.println("failed to load json config");
        }
      }
    }
  } else {
    Serial.println("failed to mount FS");
  }
  //end read
  Serial.println(static_ip);
  WiFiManagerParameter custom_mqtt_server("server", "mqtt server", mqtt_server, 40);
 
  //WiFiManager
  //Local intialization. Once its business is done, there is no need to keep it around
  WiFiManager wifiManager;
  
  wifiManager.setShowStaticFields(true);  // show Static IP  user Field 
  wifiManager.setShowDnsFields(true); // show DNS  user Field 
  //set config save notify callback
  wifiManager.setSaveConfigCallback(saveConfigCallback);
    
  //set static ip
  IPAddress _ip, _gw, _sn, _dns;
  _ip.fromString(static_ip);
  _gw.fromString(static_gw);
  _sn.fromString(static_sn);
  _dns.fromString(dns);
  wifiManager.setSTAStaticIPConfig(_ip, _gw, _sn, _dns);
  
  //add all your parameters here
  wifiManager.addParameter(&custom_mqtt_server);

  /*fetches ssid and pass and tries to connect
  if it does not connect it starts an access point with the specified name
  here  "AP Mode"
  and goes into a blocking loop awaiting configuration */

  if (!wifiManager.autoConnect("AP Mode")) {
    Serial.println("failed to connect and hit timeout");
    delay(1000);
    //reset and try again, or maybe put it to deep sleep
    ESP.restart();
    delay(5000);
  }
  
  //if you get here you have connected to the WiFi
  Serial.println("connected...yeey :)");
  
  //read updated parameters
  strcpy(mqtt_server, custom_mqtt_server.getValue());

  //save the custom parameters to FS
  if (shouldSaveConfig) {
    Serial.println("saving config");
 #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6
    DynamicJsonDocument json(1024);
 #else
    DynamicJsonBuffer jsonBuffer;
    JsonObject& json = jsonBuffer.createObject();
 #endif
    json["mqtt_server"] = mqtt_server;
    json["ip"] = WiFi.localIP().toString();
    json["gateway"] = WiFi.gatewayIP().toString();
    json["subnet"] = WiFi.subnetMask().toString();

    File configFile = SPIFFS.open("/config.json", "w");
    if (!configFile) {
      Serial.println("failed to open config file for writing");
    }

 #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6
    serializeJson(json, Serial);
    serializeJson(json, configFile);
 #else
    json.printTo(Serial);
    json.printTo(configFile);
 #endif
    configFile.close();
    //end save
  }
  Serial.println("\n");
  Serial.print("Connected to ");
  Serial.println(WiFi.SSID());
  Serial.print("Local IP: ");
  Serial.println(WiFi.localIP());
  Serial.print("Gateway IP: ");
  Serial.println(WiFi.gatewayIP());
  Serial.print("Subnet Mask: ");
  Serial.println(WiFi.subnetMask());
  Serial.print("DNS: ");
  Serial.println(WiFi.dnsIP());
 }

void loop() {
  static unsigned long buttonPressStartTime = 0;
  static bool buttonPressed = false;

  if (digitalRead(buttonPin) == HIGH) {
    if (!buttonPressed) {
      Serial.println("AP Button is Pressed");
      buttonPressed = true;
      buttonPressStartTime = millis();
    }
    if (millis() - buttonPressStartTime > LONG_PRESS_TIME) {
      WiFi.disconnect();
      WiFi.mode(WIFI_AP);
      WiFi.softAP("AP Mode");
      WiFiManager wifiManager;
      wifiManager.resetSettings();      //reset settings  
      wifiManager.startConfigPortal("AP Mode");
    }
      }
   else {
    buttonPressed = false;
  }
  if (!client.connected()) {     
    reconnect();
    client.publish(pub_topic, "{\"status\" : \"online\"}");
    Serial.println("online");
  }

  delay(1000);  
  client.loop(); 
}

Debug Messages

First configuration with Static IP setting
mounting FS...
mounted file system
10.0.1.56
*wm:AutoConnect 
*wm:STA IP set: 10.0.1.56
*wm:No wifi saved, skipping 
*wm:AutoConnect: FAILED for  103 ms
*wm:StartAP with SSID:  AP Mode
*wm:AP IP address: 192.168.4.1
*wm:Starting Web Portal 
*wm:9 networks found
*wm:STA IP set: 192.168.0.72
*wm:Connecting to NEW AP: xxxxx
*wm:connectTimeout not set, ESP waitForConnectResult... 
*wm:Connect to new AP [SUCCESS] 
*wm:Got IP Address: 
*wm:192.168.0.72 
Should save config
*wm:config portal exiting 
connected...yeey :)
saving config
{"mqtt_server":"xxxxxxxx","ip":"192.168.0.72","gateway":"192.168.0.1","subnet":"255.255.255.0"}
Connected to xxxxxx
Local IP: 192.168.0.72
Gateway IP: 192.168.0.1
Subnet Mask: 255.255.255.0
DNS: 8.8.8.8
Module MAC address is: xxxxx
Response time : 3/4.40/5 ms
Ping Success!! 
online
ping 5, timeout 0, total payload 160 bytes, 5052 ms

After Reset and able to set Dynamic IP
AP Button is Pressed
*wm:resetSettings 
*wm:SETTINGS ERASED 
*wm:StartAP with SSID:   AP Mode
*wm:AP IP address: 192.168.4.1
*wm:Starting Web Portal 

wm:<- HTTP Erase 
*wm:Erasing 
*wm:Erasing WiFi Config 
*wm:RESETTING ESP 
*wm:Restarting 
ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 3424, room 16 
tail 0
chksum 0x2e
load 0x3fff20b8, len 40, room 8 
tail 0
chksum 0x2b
csum 0x2b
v00061d50
~ld
mounting FS...
mounted file system
10.0.1.56
*wm:AutoConnect 
*wm:STA IP set: 10.0.1.56
*wm:No wifi saved, skipping 
*wm:AutoConnect: FAILED for  102 ms
*wm:StartAP with SSID:  AP Mode
*wm:AP IP address: 192.168.4.1
*wm:Starting Web Portal 
*wm:9 networks found
*wm:STA IP set: 10.0.1.56
*wm:Connecting to NEW AP: xxxxx
*wm:connectTimeout not set, ESP waitForConnectResult... 
*wm:Connect to new AP [SUCCESS] 
*wm:Got IP Address: 
*wm:10.0.1.56 
Should save config
*wm:config portal exiting 
connected...yeey :)
saving config
{"mqtt_server":"xxxxx","ip":"10.0.1.56","gateway":"10.0.1.1","subnet":"255.255.255.0"}
Connected to xxxx
Local IP: 10.0.1.56
Gateway IP: 10.0.1.1
Subnet Mask: 255.255.255.0
*wm:AP IP address: 192.168.4.1
*wm:Starting Web Portal 
*wm:9 networks found
*wm:STA IP set: 10.0.1.56
*wm:Connecting to NEW AP: xxx
*wm:connectTimeout not set, ESP waitForConnectResult... 
*wm:Connect to new AP [SUCCESS] 
*wm:Got IP Address: 
*wm:10.0.1.56 
Should save config
*wm:config portal exiting 
connected...yeey :)
saving config
{"mqtt_server":"milancloud.com","ip":"10.0.1.56","gateway":"10.0.1.1","subnet":"255.255.255.0"}

Connected to xxxxx
Local IP: 10.0.1.56
Gateway IP: 10.0.1.1
Subnet Mask: 255.255.255.0
Attempting MQTT connection...failed, rc=-2 try again in 1 second
Attempting MQTT connection...failed, rc=-2 try again in 1 second
Attempting MQTT connection...failed, rc=-2 try again in 1 second
Attempting MQTT connection...failed, rc=-2 try again in 1 second

Originally created by @kutty1999 on GitHub (May 24, 2023). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1614 WiFimanager Branch/Release: 2.0.16-rc.2 Esp8266/Esp32: Esp8266 Hardware: ESP-12e Core Version: 3.1.2 ### Description I have no idea from get dns from the field tab in webpage and store in json in code i declared default dns as 8.8.8.8 then I need same as above for secondary dns. I have faced three problems. The first one, on demand, I tried to erase the older configuration but it didn't work. The second one is static,dns, and custom parameter fields disappear after the initial configuration I declared the true value in the function. it will reappear after erase the configuration from the webpage. The third one is not switching between dynamic and static IP iam trying to switch the IP mode but it does not make it. ### Settings in IDE Module: NodeMcu Additional libraries: PubSubClient, ESP8266WiFi ### Sketch ```cpp #include <FS.h> //this needs to be first, or it all crashes and burns... #include <ESP8266WiFi.h> #include <WiFiManager.h> //https://github.com/tzapu/WiFiManager #include <PubSubClient.h> // PubSub Library used for MQTT protocol must needed very important. #include <ESP8266WebServer.h> #include <DNSServer.h> #include <ArduinoJson.h> //https://github.com/bblanchon/ArduinoJson #include <ESPping.h> #ifdef ESP32 #include <SPIFFS.h> #endif #define buttonPin 12 // Reset button pin #define LONG_PRESS_TIME 5000 // long press of reset button time in milliseconds 5000 const char* remote_host = "www.google.com"; //Host name to ping for internet connectivity. char mqtt_server[40] = "xxxx"; char user[20] = "xxxx"; // Username of MQTT Broker char pass[30] = "xxxxx"; // Password of MQTT Broker int wifiStatus; // TO check the WiFi status. WiFiClient espClient; PubSubClient client(espClient); WiFiManager wifiManager; //default custom static IP char static_ip[16]="10.0.1.56"; char static_gw[16]="10.0.1.1"; char static_sn[16]="255.255.255.0"; char dns[16]="8.8.8.8"; //flag for saving data bool shouldSaveConfig = false; //callback notifying us of the need to save config void saveConfigCallback () { Serial.println("Should save config"); shouldSaveConfig = true; } void reconnect() { // Loop until we're reconnected if (!client.connected()) { Serial.print("Attempting MQTT connection..."); digitalWrite(BUILTIN_LED, LOW); // Create a random client ID String clientId = "ESP8266Client-"; clientId += String(random(0xffff), HEX); /*************************** Client Id generated ramdomly *************************/ // Attempt to connect if (client.connect(clientId.c_str(),user,pass)) { /*********************** Connection init to MQTT server *********/ client.subscribe(sub_topic); /********************************** Subscribe starts here *****************************/ wifiStatus = WiFi.status(); if(wifiStatus == WL_CONNECTED){ Serial.println(""); Serial.println("Your Module is connected!"); Serial.print("Connected to "); Serial.println(WiFi.SSID()); Serial.print("Local IP: "); Serial.println(WiFi.localIP()); Serial.print("Gateway IP: "); Serial.println(WiFi.gatewayIP()); Serial.print("Subnet Mask: "); Serial.println(WiFi.subnetMask()); Serial.print("DNS: "); Serial.println(WiFi.dnsIP()); Serial.print("Module MAC address is: "); Serial.println(sub_topic); } else{ Serial.println(""); Serial.println("WiFi not connected"); } if (Ping.ping(remote_host) > 0){ /***************************** Ping the remote host to check the internet status *******/ Serial.printf("Response time : %d/%.2f/%d ms\n", Ping.minTime(), Ping.averageTime(), Ping.maxTime()); Serial.println("Ping Success!! "); } else { Serial.println("Ping Error !"); } } else { Serial.print("failed, rc="); Serial.print(client.state()); Serial.println(" try again in 1 second"); digitalWrite(BUILTIN_LED, HIGH); delay(500); } } } void setup() { Serial.begin(115200); Serial.println(); pinMode(buttonPin, INPUT_PULLUP); digitalWrite(buttonPin, LOW); /******************* During start up the PIN is LOW state after pressing it this becomes HIGH *********/ client.setServer(mqtt_server, 1883); /******************** MQTT server connects in 1883 port *****************************/ //read configuration from FS json Serial.println("mounting FS..."); if (SPIFFS.begin()) { Serial.println("mounted file system"); if (SPIFFS.exists("/config.json")) { //file exists, reading and loading Serial.println("reading config file"); File configFile = SPIFFS.open("/config.json", "r"); if (configFile) { Serial.println("opened config file"); size_t size = configFile.size(); // Allocate a buffer to store contents of the file. std::unique_ptr<char[]> buf(new char[size]); configFile.readBytes(buf.get(), size); #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6 DynamicJsonDocument json(1024); auto deserializeError = deserializeJson(json, buf.get()); serializeJson(json, Serial); if ( ! deserializeError ) { #else DynamicJsonBuffer jsonBuffer; JsonObject& json = jsonBuffer.parseObject(buf.get()); json.printTo(Serial); if (json.success()) { #endif Serial.println("\nparsed json"); strcpy(mqtt_server, json["mqtt_server"]); if (json["ip"]) { Serial.println("setting custom ip from config"); strcpy(static_ip, json["ip"]); strcpy(static_gw, json["gateway"]); strcpy(static_sn, json["subnet"]); Serial.println(static_ip); } else { Serial.println("no custom ip in config"); } } else { Serial.println("failed to load json config"); } } } } else { Serial.println("failed to mount FS"); } //end read Serial.println(static_ip); WiFiManagerParameter custom_mqtt_server("server", "mqtt server", mqtt_server, 40); //WiFiManager //Local intialization. Once its business is done, there is no need to keep it around WiFiManager wifiManager; wifiManager.setShowStaticFields(true); // show Static IP user Field wifiManager.setShowDnsFields(true); // show DNS user Field //set config save notify callback wifiManager.setSaveConfigCallback(saveConfigCallback); //set static ip IPAddress _ip, _gw, _sn, _dns; _ip.fromString(static_ip); _gw.fromString(static_gw); _sn.fromString(static_sn); _dns.fromString(dns); wifiManager.setSTAStaticIPConfig(_ip, _gw, _sn, _dns); //add all your parameters here wifiManager.addParameter(&custom_mqtt_server); /*fetches ssid and pass and tries to connect if it does not connect it starts an access point with the specified name here "AP Mode" and goes into a blocking loop awaiting configuration */ if (!wifiManager.autoConnect("AP Mode")) { Serial.println("failed to connect and hit timeout"); delay(1000); //reset and try again, or maybe put it to deep sleep ESP.restart(); delay(5000); } //if you get here you have connected to the WiFi Serial.println("connected...yeey :)"); //read updated parameters strcpy(mqtt_server, custom_mqtt_server.getValue()); //save the custom parameters to FS if (shouldSaveConfig) { Serial.println("saving config"); #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6 DynamicJsonDocument json(1024); #else DynamicJsonBuffer jsonBuffer; JsonObject& json = jsonBuffer.createObject(); #endif json["mqtt_server"] = mqtt_server; json["ip"] = WiFi.localIP().toString(); json["gateway"] = WiFi.gatewayIP().toString(); json["subnet"] = WiFi.subnetMask().toString(); File configFile = SPIFFS.open("/config.json", "w"); if (!configFile) { Serial.println("failed to open config file for writing"); } #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6 serializeJson(json, Serial); serializeJson(json, configFile); #else json.printTo(Serial); json.printTo(configFile); #endif configFile.close(); //end save } Serial.println("\n"); Serial.print("Connected to "); Serial.println(WiFi.SSID()); Serial.print("Local IP: "); Serial.println(WiFi.localIP()); Serial.print("Gateway IP: "); Serial.println(WiFi.gatewayIP()); Serial.print("Subnet Mask: "); Serial.println(WiFi.subnetMask()); Serial.print("DNS: "); Serial.println(WiFi.dnsIP()); } void loop() { static unsigned long buttonPressStartTime = 0; static bool buttonPressed = false; if (digitalRead(buttonPin) == HIGH) { if (!buttonPressed) { Serial.println("AP Button is Pressed"); buttonPressed = true; buttonPressStartTime = millis(); } if (millis() - buttonPressStartTime > LONG_PRESS_TIME) { WiFi.disconnect(); WiFi.mode(WIFI_AP); WiFi.softAP("AP Mode"); WiFiManager wifiManager; wifiManager.resetSettings(); //reset settings wifiManager.startConfigPortal("AP Mode"); } } else { buttonPressed = false; } if (!client.connected()) { reconnect(); client.publish(pub_topic, "{\"status\" : \"online\"}"); Serial.println("online"); } delay(1000); client.loop(); } ``` ### Debug Messages ``` First configuration with Static IP setting mounting FS... mounted file system 10.0.1.56 *wm:AutoConnect *wm:STA IP set: 10.0.1.56 *wm:No wifi saved, skipping *wm:AutoConnect: FAILED for 103 ms *wm:StartAP with SSID: AP Mode *wm:AP IP address: 192.168.4.1 *wm:Starting Web Portal *wm:9 networks found *wm:STA IP set: 192.168.0.72 *wm:Connecting to NEW AP: xxxxx *wm:connectTimeout not set, ESP waitForConnectResult... *wm:Connect to new AP [SUCCESS] *wm:Got IP Address: *wm:192.168.0.72 Should save config *wm:config portal exiting connected...yeey :) saving config {"mqtt_server":"xxxxxxxx","ip":"192.168.0.72","gateway":"192.168.0.1","subnet":"255.255.255.0"} Connected to xxxxxx Local IP: 192.168.0.72 Gateway IP: 192.168.0.1 Subnet Mask: 255.255.255.0 DNS: 8.8.8.8 Module MAC address is: xxxxx Response time : 3/4.40/5 ms Ping Success!! online ping 5, timeout 0, total payload 160 bytes, 5052 ms After Reset and able to set Dynamic IP AP Button is Pressed *wm:resetSettings *wm:SETTINGS ERASED *wm:StartAP with SSID: AP Mode *wm:AP IP address: 192.168.4.1 *wm:Starting Web Portal wm:<- HTTP Erase *wm:Erasing *wm:Erasing WiFi Config *wm:RESETTING ESP *wm:Restarting ets Jan 8 2013,rst cause:2, boot mode:(3,6) load 0x4010f000, len 3424, room 16 tail 0 chksum 0x2e load 0x3fff20b8, len 40, room 8 tail 0 chksum 0x2b csum 0x2b v00061d50 ~ld mounting FS... mounted file system 10.0.1.56 *wm:AutoConnect *wm:STA IP set: 10.0.1.56 *wm:No wifi saved, skipping *wm:AutoConnect: FAILED for 102 ms *wm:StartAP with SSID: AP Mode *wm:AP IP address: 192.168.4.1 *wm:Starting Web Portal *wm:9 networks found *wm:STA IP set: 10.0.1.56 *wm:Connecting to NEW AP: xxxxx *wm:connectTimeout not set, ESP waitForConnectResult... *wm:Connect to new AP [SUCCESS] *wm:Got IP Address: *wm:10.0.1.56 Should save config *wm:config portal exiting connected...yeey :) saving config {"mqtt_server":"xxxxx","ip":"10.0.1.56","gateway":"10.0.1.1","subnet":"255.255.255.0"} Connected to xxxx Local IP: 10.0.1.56 Gateway IP: 10.0.1.1 Subnet Mask: 255.255.255.0 *wm:AP IP address: 192.168.4.1 *wm:Starting Web Portal *wm:9 networks found *wm:STA IP set: 10.0.1.56 *wm:Connecting to NEW AP: xxx *wm:connectTimeout not set, ESP waitForConnectResult... *wm:Connect to new AP [SUCCESS] *wm:Got IP Address: *wm:10.0.1.56 Should save config *wm:config portal exiting connected...yeey :) saving config {"mqtt_server":"milancloud.com","ip":"10.0.1.56","gateway":"10.0.1.1","subnet":"255.255.255.0"} Connected to xxxxx Local IP: 10.0.1.56 Gateway IP: 10.0.1.1 Subnet Mask: 255.255.255.0 Attempting MQTT connection...failed, rc=-2 try again in 1 second Attempting MQTT connection...failed, rc=-2 try again in 1 second Attempting MQTT connection...failed, rc=-2 try again in 1 second Attempting MQTT connection...failed, rc=-2 try again in 1 second ```

kerem commented

2026-02-28 01:29:50 +03:00

Author

Owner

@kutty1999 commented on GitHub (May 26, 2023):

WiFimanager Branch/Release: 2.0.16-rc.2

Esp8266/Esp32: Esp8266

Hardware: ESP-12e

Core Version: 3.1.2

Description

I have no idea from get dns from the field tab in webpage and store in json in code i declared default dns as 8.8.8.8 then I need same as above for secondary dns.

I have faced three problems. The first one, on demand, I tried to erase the older configuration but it didn't work. The second one is static,dns, and custom parameter fields disappear after the initial configuration I declared the true value in the function. it will reappear after erase the configuration from the webpage. The third one is not switching between dynamic and static IP iam trying to switch the IP mode but it does not make it.

Settings in IDE

Module: NodeMcu

Additional libraries: PubSubClient, ESP8266WiFi

Sketch

#include <FS.h>                   //this needs to be first, or it all crashes and burns...
#include <ESP8266WiFi.h>
#include <WiFiManager.h>          //https://github.com/tzapu/WiFiManager
#include <PubSubClient.h>       // PubSub Library used for MQTT protocol must needed very important.
#include <ESP8266WebServer.h>
#include <DNSServer.h>
#include <ArduinoJson.h>          //https://github.com/bblanchon/ArduinoJson
#include <ESPping.h>
#ifdef ESP32
  #include <SPIFFS.h>
#endif

#define buttonPin 12    // Reset button pin
#define LONG_PRESS_TIME 5000   // long press of reset button time in milliseconds 5000
const char* remote_host = "www.google.com"; //Host name to ping for internet connectivity.
char mqtt_server[40] = "xxxx";
char user[20] = "xxxx";             // Username of MQTT Broker
char pass[30] = "xxxxx";           // Password of MQTT Broker
int wifiStatus;                   // TO check the WiFi status.
WiFiClient espClient;                    
PubSubClient client(espClient);

WiFiManager wifiManager;

//default custom static IP
char static_ip[16]="10.0.1.56";
char static_gw[16]="10.0.1.1";
char static_sn[16]="255.255.255.0";
char dns[16]="8.8.8.8";
//flag for saving data
bool shouldSaveConfig = false;

//callback notifying us of the need to save config
void saveConfigCallback () {
  Serial.println("Should save config");
  shouldSaveConfig = true;
}
 
void reconnect() {
  // Loop until we're reconnected
 if (!client.connected()) { 
    Serial.print("Attempting MQTT connection...");
    digitalWrite(BUILTIN_LED, LOW);
    // Create a random client ID
    String clientId = "ESP8266Client-";   
    clientId += String(random(0xffff), HEX);   /*************************** Client Id generated ramdomly *************************/
    // Attempt to connect
    if (client.connect(clientId.c_str(),user,pass)) { /*********************** Connection init to MQTT server *********/
       client.subscribe(sub_topic);  /********************************** Subscribe starts here *****************************/
       wifiStatus = WiFi.status();  
       if(wifiStatus == WL_CONNECTED){
         Serial.println("");
         Serial.println("Your Module is connected!");  
         Serial.print("Connected to ");
         Serial.println(WiFi.SSID());
         Serial.print("Local IP: ");
         Serial.println(WiFi.localIP());
         Serial.print("Gateway IP: ");
         Serial.println(WiFi.gatewayIP());
         Serial.print("Subnet Mask: ");
         Serial.println(WiFi.subnetMask());
         Serial.print("DNS: ");
         Serial.println(WiFi.dnsIP());
         Serial.print("Module MAC address is: ");
         Serial.println(sub_topic);        
        }
       else{
        Serial.println("");
        Serial.println("WiFi not connected");
     }
     if (Ping.ping(remote_host) > 0){ /***************************** Ping the remote host to check the internet status *******/
     Serial.printf("Response time : %d/%.2f/%d ms\n", Ping.minTime(), Ping.averageTime(), Ping.maxTime());
     Serial.println("Ping Success!! ");
     } else {
     Serial.println("Ping Error !");
     }
    }
    else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 1 second");  
      digitalWrite(BUILTIN_LED, HIGH);    
      delay(500);
    }
  }
} 

void setup() {
  Serial.begin(115200);
  Serial.println();
  pinMode(buttonPin, INPUT_PULLUP);
  digitalWrite(buttonPin, LOW); /******************* During start up the PIN is LOW state after pressing it this becomes HIGH *********/
  client.setServer(mqtt_server, 1883);        /******************** MQTT server connects in 1883 port *****************************/

  //read configuration from FS json
  Serial.println("mounting FS...");

  if (SPIFFS.begin()) {
    Serial.println("mounted file system");
    if (SPIFFS.exists("/config.json")) {
      //file exists, reading and loading
      Serial.println("reading config file");
      File configFile = SPIFFS.open("/config.json", "r");
      if (configFile) {
        Serial.println("opened config file");
        size_t size = configFile.size();
        // Allocate a buffer to store contents of the file.
        std::unique_ptr<char[]> buf(new char[size]);

        configFile.readBytes(buf.get(), size);
   #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6
        DynamicJsonDocument json(1024);
        auto deserializeError = deserializeJson(json, buf.get());
        serializeJson(json, Serial);
        if ( ! deserializeError ) {
   #else
        DynamicJsonBuffer jsonBuffer;
        JsonObject& json = jsonBuffer.parseObject(buf.get());
        json.printTo(Serial);
        if (json.success()) {
   #endif
          Serial.println("\nparsed json");
          
          strcpy(mqtt_server, json["mqtt_server"]);

          if (json["ip"]) {
            Serial.println("setting custom ip from config");
            strcpy(static_ip, json["ip"]);
            strcpy(static_gw, json["gateway"]);
            strcpy(static_sn, json["subnet"]);
            Serial.println(static_ip);
          } else {
            Serial.println("no custom ip in config");
          }
        } else {
          Serial.println("failed to load json config");
        }
      }
    }
  } else {
    Serial.println("failed to mount FS");
  }
  //end read
  Serial.println(static_ip);
  WiFiManagerParameter custom_mqtt_server("server", "mqtt server", mqtt_server, 40);
 
  //WiFiManager
  //Local intialization. Once its business is done, there is no need to keep it around
  WiFiManager wifiManager;
  
  wifiManager.setShowStaticFields(true);  // show Static IP  user Field 
  wifiManager.setShowDnsFields(true); // show DNS  user Field 
  //set config save notify callback
  wifiManager.setSaveConfigCallback(saveConfigCallback);
    
  //set static ip
  IPAddress _ip, _gw, _sn, _dns;
  _ip.fromString(static_ip);
  _gw.fromString(static_gw);
  _sn.fromString(static_sn);
  _dns.fromString(dns);
  wifiManager.setSTAStaticIPConfig(_ip, _gw, _sn, _dns);
  
  //add all your parameters here
  wifiManager.addParameter(&custom_mqtt_server);

  /*fetches ssid and pass and tries to connect
  if it does not connect it starts an access point with the specified name
  here  "AP Mode"
  and goes into a blocking loop awaiting configuration */

  if (!wifiManager.autoConnect("AP Mode")) {
    Serial.println("failed to connect and hit timeout");
    delay(1000);
    //reset and try again, or maybe put it to deep sleep
    ESP.restart();
    delay(5000);
  }
  
  //if you get here you have connected to the WiFi
  Serial.println("connected...yeey :)");
  
  //read updated parameters
  strcpy(mqtt_server, custom_mqtt_server.getValue());

  //save the custom parameters to FS
  if (shouldSaveConfig) {
    Serial.println("saving config");
 #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6
    DynamicJsonDocument json(1024);
 #else
    DynamicJsonBuffer jsonBuffer;
    JsonObject& json = jsonBuffer.createObject();
 #endif
    json["mqtt_server"] = mqtt_server;
    json["ip"] = WiFi.localIP().toString();
    json["gateway"] = WiFi.gatewayIP().toString();
    json["subnet"] = WiFi.subnetMask().toString();

    File configFile = SPIFFS.open("/config.json", "w");
    if (!configFile) {
      Serial.println("failed to open config file for writing");
    }

 #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6
    serializeJson(json, Serial);
    serializeJson(json, configFile);
 #else
    json.printTo(Serial);
    json.printTo(configFile);
 #endif
    configFile.close();
    //end save
  }
  Serial.println("\n");
  Serial.print("Connected to ");
  Serial.println(WiFi.SSID());
  Serial.print("Local IP: ");
  Serial.println(WiFi.localIP());
  Serial.print("Gateway IP: ");
  Serial.println(WiFi.gatewayIP());
  Serial.print("Subnet Mask: ");
  Serial.println(WiFi.subnetMask());
  Serial.print("DNS: ");
  Serial.println(WiFi.dnsIP());
 }

void loop() {
  static unsigned long buttonPressStartTime = 0;
  static bool buttonPressed = false;

  if (digitalRead(buttonPin) == HIGH) {
    if (!buttonPressed) {
      Serial.println("AP Button is Pressed");
      buttonPressed = true;
      buttonPressStartTime = millis();
    }
    if (millis() - buttonPressStartTime > LONG_PRESS_TIME) {
      WiFi.disconnect();
      WiFi.mode(WIFI_AP);
      WiFi.softAP("AP Mode");
      WiFiManager wifiManager;
      wifiManager.resetSettings();      //reset settings  
      wifiManager.startConfigPortal("AP Mode");
    }
      }
   else {
    buttonPressed = false;
  }
  if (!client.connected()) {     
    reconnect();
    client.publish(pub_topic, "{\"status\" : \"online\"}");
    Serial.println("online");
  }

  delay(1000);  
  client.loop(); 
}

Debug Messages

First configuration with Static IP setting
mounting FS...
mounted file system
10.0.1.56
*wm:AutoConnect 
*wm:STA IP set: 10.0.1.56
*wm:No wifi saved, skipping 
*wm:AutoConnect: FAILED for  103 ms
*wm:StartAP with SSID:  AP Mode
*wm:AP IP address: 192.168.4.1
*wm:Starting Web Portal 
*wm:9 networks found
*wm:STA IP set: 192.168.0.72
*wm:Connecting to NEW AP: xxxxx
*wm:connectTimeout not set, ESP waitForConnectResult... 
*wm:Connect to new AP [SUCCESS] 
*wm:Got IP Address: 
*wm:192.168.0.72 
Should save config
*wm:config portal exiting 
connected...yeey :)
saving config
{"mqtt_server":"xxxxxxxx","ip":"192.168.0.72","gateway":"192.168.0.1","subnet":"255.255.255.0"}
Connected to xxxxxx
Local IP: 192.168.0.72
Gateway IP: 192.168.0.1
Subnet Mask: 255.255.255.0
DNS: 8.8.8.8
Module MAC address is: xxxxx
Response time : 3/4.40/5 ms
Ping Success!! 
online
ping 5, timeout 0, total payload 160 bytes, 5052 ms

After Reset and able to set Dynamic IP
AP Button is Pressed
*wm:resetSettings 
*wm:SETTINGS ERASED 
*wm:StartAP with SSID:   AP Mode
*wm:AP IP address: 192.168.4.1
*wm:Starting Web Portal 

wm:<- HTTP Erase 
*wm:Erasing 
*wm:Erasing WiFi Config 
*wm:RESETTING ESP 
*wm:Restarting 
ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 3424, room 16 
tail 0
chksum 0x2e
load 0x3fff20b8, len 40, room 8 
tail 0
chksum 0x2b
csum 0x2b
v00061d50
~ld
mounting FS...
mounted file system
10.0.1.56
*wm:AutoConnect 
*wm:STA IP set: 10.0.1.56
*wm:No wifi saved, skipping 
*wm:AutoConnect: FAILED for  102 ms
*wm:StartAP with SSID:  AP Mode
*wm:AP IP address: 192.168.4.1
*wm:Starting Web Portal 
*wm:9 networks found
*wm:STA IP set: 10.0.1.56
*wm:Connecting to NEW AP: xxxxx
*wm:connectTimeout not set, ESP waitForConnectResult... 
*wm:Connect to new AP [SUCCESS] 
*wm:Got IP Address: 
*wm:10.0.1.56 
Should save config
*wm:config portal exiting 
connected...yeey :)
saving config
{"mqtt_server":"xxxxx","ip":"10.0.1.56","gateway":"10.0.1.1","subnet":"255.255.255.0"}
Connected to xxxx
Local IP: 10.0.1.56
Gateway IP: 10.0.1.1
Subnet Mask: 255.255.255.0
*wm:AP IP address: 192.168.4.1
*wm:Starting Web Portal 
*wm:9 networks found
*wm:STA IP set: 10.0.1.56
*wm:Connecting to NEW AP: xxx
*wm:connectTimeout not set, ESP waitForConnectResult... 
*wm:Connect to new AP [SUCCESS] 
*wm:Got IP Address: 
*wm:10.0.1.56 
Should save config
*wm:config portal exiting 
connected...yeey :)
saving config
{"mqtt_server":"milancloud.com","ip":"10.0.1.56","gateway":"10.0.1.1","subnet":"255.255.255.0"}

Connected to xxxxx
Local IP: 10.0.1.56
Gateway IP: 10.0.1.1
Subnet Mask: 255.255.255.0
Attempting MQTT connection...failed, rc=-2 try again in 1 second
Attempting MQTT connection...failed, rc=-2 try again in 1 second
Attempting MQTT connection...failed, rc=-2 try again in 1 second
Attempting MQTT connection...failed, rc=-2 try again in 1 second

@kutty1999 commented on GitHub (May 26, 2023): > WiFimanager Branch/Release: 2.0.16-rc.2 > > Esp8266/Esp32: Esp8266 > > Hardware: ESP-12e > > Core Version: 3.1.2 > > ### Description > I have no idea from get dns from the field tab in webpage and store in json in code i declared default dns as 8.8.8.8 then I need same as above for secondary dns. > > I have faced three problems. The first one, on demand, I tried to erase the older configuration but it didn't work. The second one is static,dns, and custom parameter fields disappear after the initial configuration I declared the true value in the function. it will reappear after erase the configuration from the webpage. The third one is not switching between dynamic and static IP iam trying to switch the IP mode but it does not make it. > > ### Settings in IDE > Module: NodeMcu > > Additional libraries: PubSubClient, ESP8266WiFi > > ### Sketch > ```c++ > #include <FS.h> //this needs to be first, or it all crashes and burns... > #include <ESP8266WiFi.h> > #include <WiFiManager.h> //https://github.com/tzapu/WiFiManager > #include <PubSubClient.h> // PubSub Library used for MQTT protocol must needed very important. > #include <ESP8266WebServer.h> > #include <DNSServer.h> > #include <ArduinoJson.h> //https://github.com/bblanchon/ArduinoJson > #include <ESPping.h> > #ifdef ESP32 > #include <SPIFFS.h> > #endif > > #define buttonPin 12 // Reset button pin > #define LONG_PRESS_TIME 5000 // long press of reset button time in milliseconds 5000 > const char* remote_host = "www.google.com"; //Host name to ping for internet connectivity. > char mqtt_server[40] = "xxxx"; > char user[20] = "xxxx"; // Username of MQTT Broker > char pass[30] = "xxxxx"; // Password of MQTT Broker > int wifiStatus; // TO check the WiFi status. > WiFiClient espClient; > PubSubClient client(espClient); > > WiFiManager wifiManager; > > //default custom static IP > char static_ip[16]="10.0.1.56"; > char static_gw[16]="10.0.1.1"; > char static_sn[16]="255.255.255.0"; > char dns[16]="8.8.8.8"; > //flag for saving data > bool shouldSaveConfig = false; > > //callback notifying us of the need to save config > void saveConfigCallback () { > Serial.println("Should save config"); > shouldSaveConfig = true; > } > > void reconnect() { > // Loop until we're reconnected > if (!client.connected()) { > Serial.print("Attempting MQTT connection..."); > digitalWrite(BUILTIN_LED, LOW); > // Create a random client ID > String clientId = "ESP8266Client-"; > clientId += String(random(0xffff), HEX); /*************************** Client Id generated ramdomly *************************/ > // Attempt to connect > if (client.connect(clientId.c_str(),user,pass)) { /*********************** Connection init to MQTT server *********/ > client.subscribe(sub_topic); /********************************** Subscribe starts here *****************************/ > wifiStatus = WiFi.status(); > if(wifiStatus == WL_CONNECTED){ > Serial.println(""); > Serial.println("Your Module is connected!"); > Serial.print("Connected to "); > Serial.println(WiFi.SSID()); > Serial.print("Local IP: "); > Serial.println(WiFi.localIP()); > Serial.print("Gateway IP: "); > Serial.println(WiFi.gatewayIP()); > Serial.print("Subnet Mask: "); > Serial.println(WiFi.subnetMask()); > Serial.print("DNS: "); > Serial.println(WiFi.dnsIP()); > Serial.print("Module MAC address is: "); > Serial.println(sub_topic); > } > else{ > Serial.println(""); > Serial.println("WiFi not connected"); > } > if (Ping.ping(remote_host) > 0){ /***************************** Ping the remote host to check the internet status *******/ > Serial.printf("Response time : %d/%.2f/%d ms\n", Ping.minTime(), Ping.averageTime(), Ping.maxTime()); > Serial.println("Ping Success!! "); > } else { > Serial.println("Ping Error !"); > } > } > else { > Serial.print("failed, rc="); > Serial.print(client.state()); > Serial.println(" try again in 1 second"); > digitalWrite(BUILTIN_LED, HIGH); > delay(500); > } > } > } > > void setup() { > Serial.begin(115200); > Serial.println(); > pinMode(buttonPin, INPUT_PULLUP); > digitalWrite(buttonPin, LOW); /******************* During start up the PIN is LOW state after pressing it this becomes HIGH *********/ > client.setServer(mqtt_server, 1883); /******************** MQTT server connects in 1883 port *****************************/ > > //read configuration from FS json > Serial.println("mounting FS..."); > > if (SPIFFS.begin()) { > Serial.println("mounted file system"); > if (SPIFFS.exists("/config.json")) { > //file exists, reading and loading > Serial.println("reading config file"); > File configFile = SPIFFS.open("/config.json", "r"); > if (configFile) { > Serial.println("opened config file"); > size_t size = configFile.size(); > // Allocate a buffer to store contents of the file. > std::unique_ptr<char[]> buf(new char[size]); > > configFile.readBytes(buf.get(), size); > #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6 > DynamicJsonDocument json(1024); > auto deserializeError = deserializeJson(json, buf.get()); > serializeJson(json, Serial); > if ( ! deserializeError ) { > #else > DynamicJsonBuffer jsonBuffer; > JsonObject& json = jsonBuffer.parseObject(buf.get()); > json.printTo(Serial); > if (json.success()) { > #endif > Serial.println("\nparsed json"); > > strcpy(mqtt_server, json["mqtt_server"]); > > if (json["ip"]) { > Serial.println("setting custom ip from config"); > strcpy(static_ip, json["ip"]); > strcpy(static_gw, json["gateway"]); > strcpy(static_sn, json["subnet"]); > Serial.println(static_ip); > } else { > Serial.println("no custom ip in config"); > } > } else { > Serial.println("failed to load json config"); > } > } > } > } else { > Serial.println("failed to mount FS"); > } > //end read > Serial.println(static_ip); > WiFiManagerParameter custom_mqtt_server("server", "mqtt server", mqtt_server, 40); > > //WiFiManager > //Local intialization. Once its business is done, there is no need to keep it around > WiFiManager wifiManager; > > wifiManager.setShowStaticFields(true); // show Static IP user Field > wifiManager.setShowDnsFields(true); // show DNS user Field > //set config save notify callback > wifiManager.setSaveConfigCallback(saveConfigCallback); > > //set static ip > IPAddress _ip, _gw, _sn, _dns; > _ip.fromString(static_ip); > _gw.fromString(static_gw); > _sn.fromString(static_sn); > _dns.fromString(dns); > wifiManager.setSTAStaticIPConfig(_ip, _gw, _sn, _dns); > > //add all your parameters here > wifiManager.addParameter(&custom_mqtt_server); > > /*fetches ssid and pass and tries to connect > if it does not connect it starts an access point with the specified name > here "AP Mode" > and goes into a blocking loop awaiting configuration */ > > if (!wifiManager.autoConnect("AP Mode")) { > Serial.println("failed to connect and hit timeout"); > delay(1000); > //reset and try again, or maybe put it to deep sleep > ESP.restart(); > delay(5000); > } > > //if you get here you have connected to the WiFi > Serial.println("connected...yeey :)"); > > //read updated parameters > strcpy(mqtt_server, custom_mqtt_server.getValue()); > > //save the custom parameters to FS > if (shouldSaveConfig) { > Serial.println("saving config"); > #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6 > DynamicJsonDocument json(1024); > #else > DynamicJsonBuffer jsonBuffer; > JsonObject& json = jsonBuffer.createObject(); > #endif > json["mqtt_server"] = mqtt_server; > json["ip"] = WiFi.localIP().toString(); > json["gateway"] = WiFi.gatewayIP().toString(); > json["subnet"] = WiFi.subnetMask().toString(); > > File configFile = SPIFFS.open("/config.json", "w"); > if (!configFile) { > Serial.println("failed to open config file for writing"); > } > > #if defined(ARDUINOJSON_VERSION_MAJOR) && ARDUINOJSON_VERSION_MAJOR >= 6 > serializeJson(json, Serial); > serializeJson(json, configFile); > #else > json.printTo(Serial); > json.printTo(configFile); > #endif > configFile.close(); > //end save > } > Serial.println("\n"); > Serial.print("Connected to "); > Serial.println(WiFi.SSID()); > Serial.print("Local IP: "); > Serial.println(WiFi.localIP()); > Serial.print("Gateway IP: "); > Serial.println(WiFi.gatewayIP()); > Serial.print("Subnet Mask: "); > Serial.println(WiFi.subnetMask()); > Serial.print("DNS: "); > Serial.println(WiFi.dnsIP()); > } > > void loop() { > static unsigned long buttonPressStartTime = 0; > static bool buttonPressed = false; > > if (digitalRead(buttonPin) == HIGH) { > if (!buttonPressed) { > Serial.println("AP Button is Pressed"); > buttonPressed = true; > buttonPressStartTime = millis(); > } > if (millis() - buttonPressStartTime > LONG_PRESS_TIME) { > WiFi.disconnect(); > WiFi.mode(WIFI_AP); > WiFi.softAP("AP Mode"); > WiFiManager wifiManager; > wifiManager.resetSettings(); //reset settings > wifiManager.startConfigPortal("AP Mode"); > } > } > else { > buttonPressed = false; > } > if (!client.connected()) { > reconnect(); > client.publish(pub_topic, "{\"status\" : \"online\"}"); > Serial.println("online"); > } > > delay(1000); > client.loop(); > } > ``` > > ### Debug Messages > ``` > First configuration with Static IP setting > mounting FS... > mounted file system > 10.0.1.56 > *wm:AutoConnect > *wm:STA IP set: 10.0.1.56 > *wm:No wifi saved, skipping > *wm:AutoConnect: FAILED for 103 ms > *wm:StartAP with SSID: AP Mode > *wm:AP IP address: 192.168.4.1 > *wm:Starting Web Portal > *wm:9 networks found > *wm:STA IP set: 192.168.0.72 > *wm:Connecting to NEW AP: xxxxx > *wm:connectTimeout not set, ESP waitForConnectResult... > *wm:Connect to new AP [SUCCESS] > *wm:Got IP Address: > *wm:192.168.0.72 > Should save config > *wm:config portal exiting > connected...yeey :) > saving config > {"mqtt_server":"xxxxxxxx","ip":"192.168.0.72","gateway":"192.168.0.1","subnet":"255.255.255.0"} > Connected to xxxxxx > Local IP: 192.168.0.72 > Gateway IP: 192.168.0.1 > Subnet Mask: 255.255.255.0 > DNS: 8.8.8.8 > Module MAC address is: xxxxx > Response time : 3/4.40/5 ms > Ping Success!! > online > ping 5, timeout 0, total payload 160 bytes, 5052 ms > > After Reset and able to set Dynamic IP > AP Button is Pressed > *wm:resetSettings > *wm:SETTINGS ERASED > *wm:StartAP with SSID: AP Mode > *wm:AP IP address: 192.168.4.1 > *wm:Starting Web Portal > > wm:<- HTTP Erase > *wm:Erasing > *wm:Erasing WiFi Config > *wm:RESETTING ESP > *wm:Restarting > ets Jan 8 2013,rst cause:2, boot mode:(3,6) > > load 0x4010f000, len 3424, room 16 > tail 0 > chksum 0x2e > load 0x3fff20b8, len 40, room 8 > tail 0 > chksum 0x2b > csum 0x2b > v00061d50 > ~ld > mounting FS... > mounted file system > 10.0.1.56 > *wm:AutoConnect > *wm:STA IP set: 10.0.1.56 > *wm:No wifi saved, skipping > *wm:AutoConnect: FAILED for 102 ms > *wm:StartAP with SSID: AP Mode > *wm:AP IP address: 192.168.4.1 > *wm:Starting Web Portal > *wm:9 networks found > *wm:STA IP set: 10.0.1.56 > *wm:Connecting to NEW AP: xxxxx > *wm:connectTimeout not set, ESP waitForConnectResult... > *wm:Connect to new AP [SUCCESS] > *wm:Got IP Address: > *wm:10.0.1.56 > Should save config > *wm:config portal exiting > connected...yeey :) > saving config > {"mqtt_server":"xxxxx","ip":"10.0.1.56","gateway":"10.0.1.1","subnet":"255.255.255.0"} > Connected to xxxx > Local IP: 10.0.1.56 > Gateway IP: 10.0.1.1 > Subnet Mask: 255.255.255.0 > *wm:AP IP address: 192.168.4.1 > *wm:Starting Web Portal > *wm:9 networks found > *wm:STA IP set: 10.0.1.56 > *wm:Connecting to NEW AP: xxx > *wm:connectTimeout not set, ESP waitForConnectResult... > *wm:Connect to new AP [SUCCESS] > *wm:Got IP Address: > *wm:10.0.1.56 > Should save config > *wm:config portal exiting > connected...yeey :) > saving config > {"mqtt_server":"milancloud.com","ip":"10.0.1.56","gateway":"10.0.1.1","subnet":"255.255.255.0"} > > Connected to xxxxx > Local IP: 10.0.1.56 > Gateway IP: 10.0.1.1 > Subnet Mask: 255.255.255.0 > Attempting MQTT connection...failed, rc=-2 try again in 1 second > Attempting MQTT connection...failed, rc=-2 try again in 1 second > Attempting MQTT connection...failed, rc=-2 try again in 1 second > Attempting MQTT connection...failed, rc=-2 try again in 1 second > ```

kerem commented

2026-02-28 01:29:50 +03:00

Author

Owner

@tablatronix commented on GitHub (May 31, 2023):

I have no idea what this is about?

@tablatronix commented on GitHub (May 31, 2023): I have no idea what this is about?

kerem commented

2026-02-28 01:29:50 +03:00

Author

Owner

@kutty1999 commented on GitHub (May 31, 2023):

I have no idea what this is about?

Thanks for reply @tablatronix
I try to create a AutoConnect With FSParameters and CustomIP with ondemand to Starting Web Portal for configuration but i couldn't achieve my idea

I tried to erase the older configuration before starting web portal but it didn't work.

void loop() {
  static unsigned long buttonPressStartTime = 0;
  static bool buttonPressed = false;

  if (digitalRead(buttonPin) == HIGH) {
    if (!buttonPressed) {
      Serial.println("AP Button is Pressed");
      buttonPressed = true;
      buttonPressStartTime = millis();
    }
    if (millis() - buttonPressStartTime > LONG_PRESS_TIME) {
      WiFi.disconnect();
      WiFi.mode(WIFI_AP);
      WiFi.softAP("AP Mode");
      WiFiManager wifiManager;
      wifiManager.resetSettings();      //reset settings  
      wifiManager.startConfigPortal("AP Mode");
    }
      }
   else {
    buttonPressed = false;
  }

static,dns, and custom parameter fields disappear after the first configuration. I declared the true boolean value in the function. it will reappear after erase the configuration using erase config button in the webpage.

  wifiManager.setShowStaticFields(true);  // show Static IP  user Field 
  wifiManager.setShowDnsFields(true); // show DNS  user Field

Not switching between dynamic and static IP iam trying to switch the IP mode but it does not make it.
I conform the dynamic not setting by the I unfill the static, and dns Fields it goes to custom ip configuration It take ip,gateway, subnet mask from the json file of older configuration, once set the static after unable to switch dynamic.

if (json["ip"]) {
            Serial.println("setting custom ip from config");
            strcpy(static_ip, json["ip"]);
            strcpy(static_gw, json["gateway"]);
            strcpy(static_sn, json["subnet"]);
            Serial.println(static_ip);
          } else {
            Serial.println("no custom ip in config");
          }
        } else {
          Serial.println("failed to load json config");

@kutty1999 commented on GitHub (May 31, 2023): > I have no idea what this is about? Thanks for reply @tablatronix I try to create a AutoConnect With FSParameters and CustomIP with ondemand to Starting Web Portal for configuration but i couldn't achieve my idea I tried to erase the older configuration before starting web portal but it didn't work. ```cpp void loop() { static unsigned long buttonPressStartTime = 0; static bool buttonPressed = false; if (digitalRead(buttonPin) == HIGH) { if (!buttonPressed) { Serial.println("AP Button is Pressed"); buttonPressed = true; buttonPressStartTime = millis(); } if (millis() - buttonPressStartTime > LONG_PRESS_TIME) { WiFi.disconnect(); WiFi.mode(WIFI_AP); WiFi.softAP("AP Mode"); WiFiManager wifiManager; wifiManager.resetSettings(); //reset settings wifiManager.startConfigPortal("AP Mode"); } } else { buttonPressed = false; } ``` static,dns, and custom parameter fields disappear after the first configuration. I declared the true boolean value in the function. it will reappear after erase the configuration using erase config button in the webpage. ```cpp wifiManager.setShowStaticFields(true); // show Static IP user Field wifiManager.setShowDnsFields(true); // show DNS user Field ``` Not switching between dynamic and static IP iam trying to switch the IP mode but it does not make it. I conform the dynamic not setting by the I unfill the static, and dns Fields it goes to custom ip configuration It take ip,gateway, subnet mask from the json file of older configuration, once set the static after unable to switch dynamic. ```cpp if (json["ip"]) { Serial.println("setting custom ip from config"); strcpy(static_ip, json["ip"]); strcpy(static_gw, json["gateway"]); strcpy(static_sn, json["subnet"]); Serial.println(static_ip); } else { Serial.println("no custom ip in config"); } } else { Serial.println("failed to load json config"); ```

kerem commented

2026-02-28 01:29:50 +03:00

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@tablatronix commented on GitHub (May 31, 2023):

Someone else did this, I think they added a checkbox.

Are you adding them to wm? wifiManager.setSTAStaticIPConfig(_ip, _gw, _sn);

did you check the examples?

@tablatronix commented on GitHub (May 31, 2023): Someone else did this, I think they added a checkbox. Are you adding them to wm? wifiManager.setSTAStaticIPConfig(_ip, _gw, _sn); did you check the examples?