Wifimanager: Help with AutoConnectWithFSParameters example with simple modification.

[Shalabyer]

Esp8266/Esp32:

• [x] ESP8266
  **Hardware:
• [x] ESP12 E/F/S (nodemcu, wemos, feather)

Description

In the great example AutoConnectWithFSParameters it tries to save SSID, Password, localIP, gatewayIP and subnetMask of a WI-FI network for the ESP8266 by giving these data via web while the ESP acts as a hotspot.
Well that's all okay but what i need help with and i need to do is to give these data to the ESP to save via code and not via link,
here is an example of what i want to do :

#include <FS.h>          // this needs to be first, or it all crashes and burns...
#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
#include <ArduinoJson.h> // https://github.com/bblanchon/ArduinoJson

#ifdef ESP32
  #include <SPIFFS.h>
#endif

void(* resetFunc) (void) = 0; //declare reset function @ address 0
void setup()
{
String SSIDName="test";
String Password="test";
String localIPs="192.168.1.10";
String gatewayIPs="192.168.1.1";
String subnetMasks="255.255.255.0";

}
void loop()
{
if(true)
{
   WiFiManager wifiManager;    
    wifiManager.resetSettings();
    //HERE save new SSIDName, Password, localIPs, gatewayIPs and subnetMasks to the ESP8266
    //the above line is the code that i want please if you may help
  resetFunc();
}
}

[tablatronix]

Then just use the esp functions for this

[Shalabyer]

Thank for your help,
i searched throught all the public function on the library and found non to set SSID name and Password of the Wi-Fi
But i have made it to save a new IP address here is the new code

#include <FS.h>          // this needs to be first, or it all crashes and burns...
#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
#include <ArduinoJson.h> // https://github.com/bblanchon/ArduinoJson

#ifdef ESP32
  #include <SPIFFS.h>
#endif

void(* resetFunc) (void) = 0; //declare reset function @ address 0
void setup()
{
String SSIDName="test";
String Password="test";
String localIPs="192.168.1.10";
String gatewayIPs="192.168.1.1";
String subnetMasks="255.255.255.0";

}
void loop()
{
if(true)
{

         WiFiManager wifiManager;    
    wifiManager.resetSettings();

     #ifdef ARDUINOJSON_VERSION_MAJOR >= 6
    DynamicJsonDocument json(1024);
  #else
    DynamicJsonBuffer jsonBuffer;
    JsonObject& json = jsonBuffer.createObject();
  #endif


    json["ip"] ="192.168.43.99";
    json["gateway"] = "192.168.43.1";
    json["subnet"] = "255.255.255.0";

    File configFile = SPIFFS.open("/config.json", "w");
    if (!configFile) {
      Serial.println("failed to open config file for writing");
    }
  #ifdef ARDUINOJSON_VERSION_MAJOR >= 6
    serializeJson(json, Serial);
    serializeJson(json, configFile);
  #else
    json.printTo(Serial);
    json.printTo(configFile);
  #endif
    configFile.close();
//    wifiManager.wifiConnectNew("testSSID","testPassword");  
//this is a private function that i found but i can't use it as It's Private
  resetFunc();
}
}

What i want here is to save new SSID name and Password to the ESP8266 file manually without the need to enter the data through ESP Access Point.
If you could please help me with function names that i can use to save these two paramters.

[tablatronix]

WiFi.begin()
WiFi.setConfig()

These are not wm functions

[Shalabyer]

For WiFi.setConfig() function, i didn't found any info, hope you mean WiFi.config() which only do config the IP address.
now for the WiFi.begin() function,
i added it to my code like the following:

```
configFile.close();
WiFi.begin("testSSID","testPass");
Serial.print("Connecting");
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println();

Serial.print("Connected, IP address: ");
Serial.println(WiFi.localIP());
resetFunc();
```
It prints that it connected successfully which is good but the bad thing here that it doesn't save these two parameters as when it resets it enters AP mode as it didn't save the SSID and PASS but it saved All the new IP Addresses .
This is what i get when it resets to make it more clear:

reading config file
opened config file
{"ip":"192.168.43.99","gateway":"192.168.43.1","subnet":"255.255.255.0"}
parsed json
setting custom ip from config
192.168.43.99
*WM: [1] AutoConnect
*WM: [1] No Credentials are Saved, skipping connect
*WM: [2] Starting Config Portal
*WM: [2] AccessPoint set password is VALID
*WM: [1] password
*WM: [3] WIFI station disconnect
*WM: [3] WiFi station enable
*WM: [2] Disabling STA
*WM: [2] Enabling AP

NOTE: "192.168.43.99" is the new IP address

What i need is a way to save the SSID and Password to the ESP like we saved the IP addresses, i.e: with code.

[tablatronix]

Sorry I meant WiFi.config it takes all addresses

[Shalabyer]

Iam sorry man but what about saving wifi data like ssid and password, Wifi.begin doesn't save these data it just starts the connection for one time.

[tablatronix]

No it saves it

[Shalabyer]

Allrigth here is my full code if you please may help me with that if iam getting it wrong

#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 <SPI.h> //What is used to communicate witht he WiFi chip
#include <ArduinoJson.h>          //https://github.com/bblanchon/ArduinoJson

//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";
//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(* resetFunc) (void) = 0; //declare reset function @ address 0
int status = WL_IDLE_STATUS; //status of wifi
WiFiServer server(80); //declare server object and spedify port, 80 is port used for internet
void setup() {
    WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP  

  Serial.begin(115200);
  delay(10);
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);

        #ifdef ARDUINOJSON_VERSION_MAJOR >= 6
          DynamicJsonDocument json(1024);
          DeserializationError 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");
        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 {
   // SendState();

    Serial.println("failed to mount FS");
  }
  WiFiManager wifiManager;

  wifiManager.setSaveConfigCallback(saveConfigCallback);

  //set static ip
  IPAddress _ip, _gw, _sn;
  _ip.fromString(static_ip);
  _gw.fromString(static_gw);
  _sn.fromString(static_sn);

  wifiManager.setSTAStaticIPConfig(_ip, _gw, _sn);

  //set minimu quality of signal so it ignores AP's under that quality
  //defaults to 8%
  wifiManager.setMinimumSignalQuality();

    wifiManager.setBreakAfterConfig(true);

  if (!wifiManager.autoConnect("TTTT", "password")) {
    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) {
    Serial.println("saving config");

  #ifdef ARDUINOJSON_VERSION_MAJOR >= 6
    DynamicJsonDocument json(1024);
  #else
    DynamicJsonBuffer jsonBuffer;
    JsonObject& json = jsonBuffer.createObject();
  #endif


    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");
    }


  #ifdef ARDUINOJSON_VERSION_MAJOR >= 6
    serializeJson(json, Serial);
    serializeJson(json, configFile);

 // resetFunc();
  #else
    json.printTo(Serial);
    json.printTo(configFile);
  #endif
    configFile.close();
    //end save
  }

  server.begin();
  Serial.println("Server started");
  Serial.print("Use this URL to connect: ");
  Serial.print("http://");
  Serial.print(WiFi.localIP());
  Serial.println("/");
}


void loop()
{
  WiFiClient client = server.available();   // listen for incoming clients(Returns a Client object that has data available for reading if no Client has data available for reading this object will evaluate to false)
  //if client has data to be read then it will be true (WiFiClient client) Creates a client that can connect to a specified internet IP address and port
  if (client) {                             // if you get a client,
   // Serial.println("new client");          // print a message out the serial port
    String currentLine = "";   
    while (client.connected()) {       // loop while the client's connected
      if (client.available()) {             // if there's bytes to read from the client,Returns the number of bytes available for reading
        char c = client.read();             // read a byte, then (Read the next byte received from the server the client is connected to (after the last call to read()).or -1 if none is available.)
     if (c == '\n') {                    // if the byte is a newline character
        }
        else if (c != '\r') {    // if you got anything else but a carriage return character" Carriage Return ("CR") moves the cursor to the beginning of the line without advancing to the next line",
          currentLine += c;
         // add it to the end of the currentLine
        }
      if (currentLine.endsWith("GET /v")) {

         WiFiManager wifiManager;    
    wifiManager.resetSettings();

     #ifdef ARDUINOJSON_VERSION_MAJOR >= 6
    DynamicJsonDocument json(1024);
  #else
    DynamicJsonBuffer jsonBuffer;
    JsonObject& json = jsonBuffer.createObject();
  #endif
 wifiManager.setSaveConfigCallback(saveConfigCallback);
    wifiManager.setBreakAfterConfig(true);

  IPAddress _ip, _gw, _sn;
  _ip.fromString("192.168.43.99");
  _gw.fromString("192.168.43.1");
  _sn.fromString("255.255.255.0");

  wifiManager.setSTAStaticIPConfig(_ip, _gw, _sn);
 WiFi.begin("Xperia","88888888m");
    Serial.print("Connecting");
  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }
  Serial.println();

  Serial.print("Connected, IP address: ");
  Serial.println(WiFi.localIP());

    json["ip"] = "192.168.43.99";
    json["gateway"] = "192.168.43.1";
    json["subnet"] = "255.255.255.0";

    File configFile = SPIFFS.open("/config.json", "w");
    if (!configFile) {
      Serial.println("failed to open config file for writing");
    }
  #ifdef ARDUINOJSON_VERSION_MAJOR >= 6
    serializeJson(json, Serial);
    serializeJson(json, configFile);
  #else
    json.printTo(Serial);
    json.printTo(configFile);
  #endif
    configFile.close();

  resetFunc();
        }

         }
    }
    // close the connection:
    client.stop();
  }
}

Now let us consider that it has default data and connected with local ip "192.168.43.60" which i give it to the esp via the web link now here is the data that i get on Serial monitor with the following porecedures:
1.reset the esp
2.hitting "192.168.43.60/v" via my laptop.
What should i expect is that it will reset the esp configration then tries to change the local ip to 192.168.43.99 then reconnect to the Wi-Fi -and at this point i will change the wi-fi SSID and PASS to the new given one in the code but i didn't here in this example-.
Anyway here is what i get on the serial monitor :

SDK:2.2.2-dev(38a443e)/Core:2.7.2-7-g5d3af165=20702007/lwIP:STABLE-2_1_2_RELEASE/glue:1.2-30-g92add50/BearSSL:5c771be
mounted file system
reading config file
opened config file
{"ip":"192.168.43.60","gateway":"192.168.43.1","subnet":"255.255.255.0"}
parsed json
setting custom ip from config
192.168.43.60
*WM: [1] AutoConnect
*WM: [2] Connecting as wifi client...
*WM: [3] STA static IP: 192.168.43.60
*WM: [2] Custom static IP/GW/Subnet/DNS
*WM: [2] Custom STA IP/GW/Subnet
*WM: [1] STA IP set: 192.168.43.60
*WM: [1] Connecting to SAVED AP: Xperia
*WM: [3] Using Password: 88888888m
*WM: [3] WiFi station enable
*WM: [3] enableSTA PERSISTENT ON
scandone
*WM: [1] connectTimeout not set, ESP waitForConnectResult...
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 1
cnt

connected with Xperia, channel 13
ip:192.168.43.60,mask:255.255.255.0,gw:192.168.43.1
ip:192.168.43.60,mask:255.255.255.0,gw:192.168.43.1
*WM: [2] Connection result: WL_CONNECTED
*WM: [3] lastconxresult: WL_CONNECTED
*WM: [1] AutoConnect: SUCCESS
*WM: [1] STA IP Address: 192.168.43.60
connected...yeey :)
Server started
Use this URL to connect: http://192.168.43.60/
*WM: [3] unloading
pm open,type:2 0
*WM: [1] resetSettings //HERE WHEN I HIT "192.168.43.60/V" WITH MY LAPTOP
*WM: [3] WiFi station enable
*WM: [3] enableSTA PERSISTENT ON
state: 5 -> 0 (0)
rm 0
pm close 7
del if0
usl
mode : null
*WM: [1] SETTINGS ERASED
mode : sta(84:0d:8e:8d:ed:80)
ip:192.168.43.60,mask:255.255.255.0,gw:192.168.43.1
add if0
Connecting......scandone
state: 0 -> 2 (b0)
.state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 1
cnt

connected with Xperia, channel 13
ip:192.168.43.60,mask:255.255.255.0,gw:192.168.43.1
.
Connected, IP address: 192.168.43.60
{"ip":"192.168.43.99","gateway":"192.168.43.1","subnet":"255.255.255.0"}
ets Jan 8 2013,rst cause:4, boot mode:(3,6)

wdt reset
load 0x4010f000, len 3584, room 16
tail 0
chksum 0xb0
csum 0xb0
v5d3af165
~ld

SDK:2.2.2-dev(38a443e)/Core:2.7.2-7-g5d3af165=20702007/lwIP:STABLE-2_1_2_RELEASE/glue:1.2-30-g92add50/BearSSL:5c771be
mounted file system
reading config file
opened config file
{"ip":"192.168.43.99","gateway":"192.168.43.1","subnet":"255.255.255.0"}
parsed json
setting custom ip from config
192.168.43.99
*WM: [1] AutoConnect
*WM: [1] No Credentials are Saved, skipping connect
*WM: [2] Starting Config Portal
*WM: [2] AccessPoint set password is VALID
*WM: [1] password
*WM: [3] WIFI station disconnect
*WM: [3] WiFi station enable
del if0
usl
mode : null
*WM: [2] Disabling STA
*WM: [2] Enabling AP
*WM: [1] StartAP with SSID: TTTT
mode : softAP(86:0d:8e:8d:ed:80)
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
bcn 0
del if1
usl
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
*WM: [1] SoftAP Configuration
*WM: [1] --------------------
*WM: [1] ssid: TTTT
*WM: [1] password: password
*WM: [1] ssid_len: 4
*WM: [1] channel: 1
*WM: [1] authmode: 3
*WM: [1] ssid_hidden:
*WM: [1] max_connection: 4
*WM: [1] country: CN
*WM: [1] beacon_interval: 100(ms)
*WM: [1] --------------------
*WM: [1] AP IP address: 192.168.4.1
*WM: [3] setupConfigPortal
*WM: [1] Starting Web Portal
*WM: [3] dns server started with ip: 192.168.4.1
*WM: [2] HTTP server started
mode : sta(84:0d:8e:8d:ed:80) + softAP(86:0d:8e:8d:ed:80)
add if0
scandone
*WM: [2] WiFi Scan completed in 2187 ms

Also i tried to put this line:
WiFi.begin("Xperia","88888888m");
after the this line:
configFile.close();
and still the same response , No save for the SSID and PASS.
I would be pleased for help,Thanks anyway :)

[Shalabyer]

Any help :)

[tablatronix]

alot going on here, first off why are you parsing the web server, you can just add a route and a callback and then check if the arguments exist for querystrings. There are web server functions to do this.

It looks like you are still connected after resetsettings, that is odd, maybe it is ok after reboot.

Not sure when you say not saved, WiFi.begin("Xperia","88888888m"); is saved by the esp

Maybe your flash is corrupt

You will need to present this in smaller pieces, its hard to follow