[GH-ISSUE #1074] Custom parameters are not stored when using startConfigPortal() (works first time on autoconnect())

kerem commented

2026-02-28 01:27:39 +03:00

Owner

Originally created by @pnodseth on GitHub (Jun 7, 2020).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1074

Basic Infos

Version: 2.0.2 Alpha

Hardware

WiFimanager Branch/Release:

Master
[X ] Development

Esp8266/Esp32:

ESP8266
ESP32

Hardware: ESP-12e, esp01, esp25

ESP01
ESP12 E/F/S (nodemcu, wemos, feather)
Other

ESP Core Version: 2.4.0, staging

2.3.0
2.4.0
staging (master/dev)

Description

First of all, thanks for all the great work you are doing with this library! So useful! :D
Custom parameters are not stored when using startConfigPortal() and connecting to same wifi as previously connected to. The values that was stored on first connection with th

Problem description
I am running into a problem when using startConfigPortal().
When I connect to a new wifi using autoconnect during setup, the custom parameters I have are stored just like they should.

But after that, if I trigger startConfigPortal() and connect to the same wifi but insert other custom parameters, they are not stored. The initially saved parameters are still there.

Settings in IDE

Module: NodeMcu

Additional libraries:

Sketch


#include <FS.h> //this needs to be first, or it all crashes and burns...

#include <ESP8266WiFi.h> //https://github.com/esp8266/Arduino

//needed for library
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h> //https://github.com/tzapu/WiFiManager
#include <ArduinoJson.h> //https://github.com/bblanchon/ArduinoJson

char deviceName[40];
char userSecret[40];

#define WIFI_TRIGGER_PIN 0

WiFiManagerParameter custom_deviceName("deviceName", "Device Name", deviceName, 40);
WiFiManagerParameter custom_userSecret("userSecret", "User Secret", userSecret, 40);
WiFiManager wifiManager;
//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;
}

/* Wifimanager end */

void setup()
{
  Serial.println("Starting setup...");

  wifiManagersetup();

}

void loop()
{

  /* IF we want device to go to wifi setup portal, press onboard reset button */
  if (digitalRead(WIFI_TRIGGER_PIN) == LOW)
  {
    Serial.println("starting config portal...");
    delay(2000);
    wifiManager.resetSettings();
    delay(2000);
    wifiManager.startConfigPortal("nodeMCUWifi");
  }
  else
  {
    //...stuff here
  }
}

void wifiManagersetup()
{

  //read configuration from FS json
  Serial.println("mounting FS...");
  SPIFFS.begin();
  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);
        StaticJsonDocument<256> json;
        DeserializationError jsonError = deserializeJson(json, buf.get());
        serializeJsonPretty(json, Serial);
        if (!jsonError)
        {
          Serial.println("\nparsed json");

          strcpy(deviceName, json["deviceName"]);
          strcpy(userSecret, json["userSecret"]);

          Serial.print("nu kjøm han");
          Serial.println(deviceName);
        }
        else
        {
          Serial.println("failed to load json config");
        }
        configFile.close();
      }
    }
  }
  else
  {
    Serial.println("failed to mount FS");
  }
  //end read

  //set config save notify callback
  wifiManager.setSaveConfigCallback(saveConfigCallback);
  wifiManager.setSaveParamsCallback(saveConfigCallback);

  //add all your parameters here
  wifiManager.addParameter(&custom_deviceName);
  wifiManager.addParameter(&custom_userSecret);

  if (!wifiManager.autoConnect("nodeMCUWifi"))
  {
    Serial.println("failed to connect and hit timeout");
    delay(3000);
    //reset and try again, or maybe put it to deep sleep
    ESP.reset();
    delay(5000);
  }

  //if you get here you have connected to the WiFi
  Serial.println("connected...yeey :)");

  //save the custom parameters to FS
  if (shouldSaveConfig)
  {
    //read updated parameters
    strcpy(deviceName, custom_deviceName.getValue());
    strcpy(userSecret, custom_userSecret.getValue());
    Serial.println("saving config");
    StaticJsonDocument<256> json;
    json["userSecret"] = userSecret;
    json["deviceName"] = deviceName;

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

    serializeJsonPretty(json, Serial);
    serializeJson(json, configFile);
    configFile.close();
    //end save
  }
}

Debug Messages

messages here

Originally created by @pnodseth on GitHub (Jun 7, 2020). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1074 ### Basic Infos Version: 2.0.2 Alpha #### Hardware **WiFimanager Branch/Release:** - [ ] Master - [X ] Development **Esp8266/Esp32:** - [X] ESP8266 - [ ] ESP32 **Hardware: ESP-12e, esp01, esp25** - [ ] ESP01 - [X] ESP12 E/F/S (nodemcu, wemos, feather) - [ ] Other **ESP Core Version: 2.4.0, staging** - [ ] 2.3.0 - [ ] 2.4.0 - [ ] staging (master/dev) ### Description First of all, thanks for all the great work you are doing with this library! So useful! :D Custom parameters are not stored when using startConfigPortal() and connecting to same wifi as previously connected to. The values that was stored on first connection with th Problem description I am running into a problem when using startConfigPortal(). When I connect to a new wifi using autoconnect during setup, the custom parameters I have are stored just like they should. But after that, if I trigger startConfigPortal() and connect to the same wifi but insert other custom parameters, they are not stored. The initially saved parameters are still there. ### Settings in IDE Module: NodeMcu Additional libraries: ### Sketch ```cpp #include <FS.h> //this needs to be first, or it all crashes and burns... #include <ESP8266WiFi.h> //https://github.com/esp8266/Arduino //needed for library #include <DNSServer.h> #include <ESP8266WebServer.h> #include <WiFiManager.h> //https://github.com/tzapu/WiFiManager #include <ArduinoJson.h> //https://github.com/bblanchon/ArduinoJson char deviceName[40]; char userSecret[40]; #define WIFI_TRIGGER_PIN 0 WiFiManagerParameter custom_deviceName("deviceName", "Device Name", deviceName, 40); WiFiManagerParameter custom_userSecret("userSecret", "User Secret", userSecret, 40); WiFiManager wifiManager; //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; } /* Wifimanager end */ void setup() { Serial.println("Starting setup..."); wifiManagersetup(); } void loop() { /* IF we want device to go to wifi setup portal, press onboard reset button */ if (digitalRead(WIFI_TRIGGER_PIN) == LOW) { Serial.println("starting config portal..."); delay(2000); wifiManager.resetSettings(); delay(2000); wifiManager.startConfigPortal("nodeMCUWifi"); } else { //...stuff here } } void wifiManagersetup() { //read configuration from FS json Serial.println("mounting FS..."); SPIFFS.begin(); 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); StaticJsonDocument<256> json; DeserializationError jsonError = deserializeJson(json, buf.get()); serializeJsonPretty(json, Serial); if (!jsonError) { Serial.println("\nparsed json"); strcpy(deviceName, json["deviceName"]); strcpy(userSecret, json["userSecret"]); Serial.print("nu kjøm han"); Serial.println(deviceName); } else { Serial.println("failed to load json config"); } configFile.close(); } } } else { Serial.println("failed to mount FS"); } //end read //set config save notify callback wifiManager.setSaveConfigCallback(saveConfigCallback); wifiManager.setSaveParamsCallback(saveConfigCallback); //add all your parameters here wifiManager.addParameter(&custom_deviceName); wifiManager.addParameter(&custom_userSecret); if (!wifiManager.autoConnect("nodeMCUWifi")) { Serial.println("failed to connect and hit timeout"); delay(3000); //reset and try again, or maybe put it to deep sleep ESP.reset(); delay(5000); } //if you get here you have connected to the WiFi Serial.println("connected...yeey :)"); //save the custom parameters to FS if (shouldSaveConfig) { //read updated parameters strcpy(deviceName, custom_deviceName.getValue()); strcpy(userSecret, custom_userSecret.getValue()); Serial.println("saving config"); StaticJsonDocument<256> json; json["userSecret"] = userSecret; json["deviceName"] = deviceName; File configFile = SPIFFS.open("/config.json", "w"); if (!configFile) { Serial.println("failed to open config file for writing"); } serializeJsonPretty(json, Serial); serializeJson(json, configFile); configFile.close(); //end save } } ``` ### Debug Messages ``` messages here ```

kerem closed this issue

2026-02-28 01:27:39 +03:00

kerem commented

2026-02-28 01:27:40 +03:00

Author

Owner

@tablatronix commented on GitHub (Jun 7, 2020):

Is your callback being called ?, you didnt post any serial logs...

saveConfigCallback

@tablatronix commented on GitHub (Jun 7, 2020): Is your callback being called ?, you didnt post any serial logs... saveConfigCallback

kerem commented

2026-02-28 01:27:40 +03:00

Author

Owner

@pnodseth commented on GitHub (Jun 7, 2020):

Sorry about that!
Here is the log:

*WM: [2] <- HTTP WiFi save  
*WM: [3] Method: POST
*WM: [2] Parameters 
*WM: [2] -------------------- 
*WM: [2] deviceName: TestingDevice
*WM: [2] userSecret: TestingSecret
*WM: [2] -------------------- 
Should save config
*WM: [3] Sent wifi save page 
*WM: [2] processing save 
*WM: [2] Connecting as wifi client... 
*WM: [3] STA static IP:
*WM: [2] setSTAConfig static ip not set, skipping 
*WM: [1] CONNECTED:
*WM: [1] Connecting to NEW AP: <REMOVED>
*WM: [3] Using Password: <REMOVED>
*WM: [3] WiFi station enable 
*WM: [3] enableSTA PERSISTENT ON 
*WM: [1] connectTimeout not set, ESP waitForConnectResult... 
*WM: [2] Connection result: WL_CONNECTED
*WM: [3] lastconxresult: WL_CONNECTED
*WM: [1] Connect to new AP [SUCCESS] 
*WM: [1] Got IP Address: 
*WM: [1] 192.168.1.183 
Should save config
*WM: [2] disconnect configportal 
*WM: [2] restoring usermode STA
*WM: [2] wifi status: WL_CONNECTED
*WM: [2] wifi mode: STA
*WM: [1] config portal exiting

@pnodseth commented on GitHub (Jun 7, 2020): Sorry about that! Here is the log: ```PHP *WM: [2] <- HTTP WiFi save *WM: [3] Method: POST *WM: [2] Parameters *WM: [2] -------------------- *WM: [2] deviceName: TestingDevice *WM: [2] userSecret: TestingSecret *WM: [2] -------------------- Should save config *WM: [3] Sent wifi save page *WM: [2] processing save *WM: [2] Connecting as wifi client... *WM: [3] STA static IP: *WM: [2] setSTAConfig static ip not set, skipping *WM: [1] CONNECTED: *WM: [1] Connecting to NEW AP: <REMOVED> *WM: [3] Using Password: <REMOVED> *WM: [3] WiFi station enable *WM: [3] enableSTA PERSISTENT ON *WM: [1] connectTimeout not set, ESP waitForConnectResult... *WM: [2] Connection result: WL_CONNECTED *WM: [3] lastconxresult: WL_CONNECTED *WM: [1] Connect to new AP [SUCCESS] *WM: [1] Got IP Address: *WM: [1] 192.168.1.183 Should save config *WM: [2] disconnect configportal *WM: [2] restoring usermode STA *WM: [2] wifi status: WL_CONNECTED *WM: [2] wifi mode: STA *WM: [1] config portal exiting ```

kerem commented

2026-02-28 01:27:40 +03:00

Author

Owner

@tablatronix commented on GitHub (Jun 7, 2020):

Well you are not checking for shouldsave in your loop, only in setup, so thats probably why.. You are not doing anything with the flag

@tablatronix commented on GitHub (Jun 7, 2020): Well you are not checking for shouldsave in your loop, only in setup, so thats probably why.. You are not doing anything with the flag

kerem commented

2026-02-28 01:27:40 +03:00

Author

Owner

@pnodseth commented on GitHub (Jun 8, 2020):

Omg, you are correct! Thanks, and sorry :D
Again, really appreciate your effort with this library!!

@pnodseth commented on GitHub (Jun 8, 2020): Omg, you are correct! Thanks, and sorry :D Again, really appreciate your effort with this library!!

kerem referenced this issue

2026-02-28 02:12:40 +03:00

[PR #915] [CLOSED] Added a view password on mouse click or mobile tap. #1692

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[GH-ISSUE #1074] Custom parameters are not stored when using startConfigPortal() (works first time on autoconnect()) #915

Basic Infos

Hardware

Description

Settings in IDE

Sketch

Debug Messages