dogrocker/ESP8266 Web Server to storing ap config to EEPROM.md

## ESP8266 Web Server to storing ap config to EEPROM.md

      
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              ESP8266 Web Server to storing ap config to EEPROM.md
            
          
    ESP8266 Web Server to storing ap config to EEPROM.

Original by chriscook8 from esp8266.com I just modified to use ESP8266WebServer library for easy to handle the http request.

This is sample code not yet complete.
Todo


 when Wifi connected need to close the softAP.


 maybe some dns with ESP8266mDNS.


Use


authen to softAP test with password test
go to 192.168.4.1 and enter your ssid
restart esp!

Modified by

Kanin Peanviriyakulkit @DogRocker
If you can take todo, all help are welcome :)

  
## ESP8266_eep.ino
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <EEPROM.h>

ESP8266WebServer server(80);

const char* ssid = "test";
const char* passphrase = "test";
String st;
String content;
int statusCode;

void setup() {
  Serial.begin(115200);
  EEPROM.begin(512);
  delay(10);
  Serial.println();
  Serial.println();
  Serial.println("Startup");
  // read eeprom for ssid and pass
  Serial.println("Reading EEPROM ssid");
  String esid;
  for (int i = 0; i < 32; ++i)
    {
      esid += char(EEPROM.read(i));
    }
  Serial.print("SSID: ");
  Serial.println(esid);
  Serial.println("Reading EEPROM pass");
  String epass = "";
  for (int i = 32; i < 96; ++i)
    {
      epass += char(EEPROM.read(i));
    }
  Serial.print("PASS: ");
  Serial.println(epass);
  if ( esid.length() > 1 ) {
      WiFi.begin(esid.c_str(), epass.c_str());
      if (testWifi()) {
        launchWeb(0);
        return;
      }
  }
  setupAP();
}

bool testWifi(void) {
  int c = 0;
  Serial.println("Waiting for Wifi to connect");
  while ( c < 20 ) {
    if (WiFi.status() == WL_CONNECTED) { return true; }
    delay(500);
    Serial.print(WiFi.status());
    c++;
  }
  Serial.println("");
  Serial.println("Connect timed out, opening AP");
  return false;
}

void launchWeb(int webtype) {
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("Local IP: ");
  Serial.println(WiFi.localIP());
  Serial.print("SoftAP IP: ");
  Serial.println(WiFi.softAPIP());
  createWebServer(webtype);
  // Start the server
  server.begin();
  Serial.println("Server started");
}

void setupAP(void) {
  WiFi.mode(WIFI_STA);
  WiFi.disconnect();
  delay(100);
  int n = WiFi.scanNetworks();
  Serial.println("scan done");
  if (n == 0)
    Serial.println("no networks found");
  else
  {
    Serial.print(n);
    Serial.println(" networks found");
    for (int i = 0; i < n; ++i)
     {
      // Print SSID and RSSI for each network found
      Serial.print(i + 1);
      Serial.print(": ");
      Serial.print(WiFi.SSID(i));
      Serial.print(" (");
      Serial.print(WiFi.RSSI(i));
      Serial.print(")");
      Serial.println((WiFi.encryptionType(i) == ENC_TYPE_NONE)?" ":"*");
      delay(10);
     }
  }
  Serial.println("");
  st = "<ol>";
  for (int i = 0; i < n; ++i)
    {
      // Print SSID and RSSI for each network found
      st += "<li>";
      st += WiFi.SSID(i);
      st += " (";
      st += WiFi.RSSI(i);
      st += ")";
      st += (WiFi.encryptionType(i) == ENC_TYPE_NONE)?" ":"*";
      st += "</li>";
    }
  st += "</ol>";
  delay(100);
  WiFi.softAP(ssid, passphrase, 6);
  Serial.println("softap");
  launchWeb(1);
  Serial.println("over");
}

void createWebServer(int webtype)
{
  if ( webtype == 1 ) {
    server.on("/", []() {
        IPAddress ip = WiFi.softAPIP();
        String ipStr = String(ip[0]) + '.' + String(ip[1]) + '.' + String(ip[2]) + '.' + String(ip[3]);
        content = "<!DOCTYPE HTML>\r\n<html>Hello from ESP8266 at ";
        content += ipStr;
        content += "<p>";
        content += st;
        content += "</p><form method='get' action='setting'><label>SSID: </label><input name='ssid' length=32><input name='pass' length=64><input type='submit'></form>";
        content += "</html>";
        server.send(200, "text/html", content);
    });
    server.on("/setting", []() {
        String qsid = server.arg("ssid");
        String qpass = server.arg("pass");
        if (qsid.length() > 0 && qpass.length() > 0) {
          Serial.println("clearing eeprom");
          for (int i = 0; i < 96; ++i) { EEPROM.write(i, 0); }
          Serial.println(qsid);
          Serial.println("");
          Serial.println(qpass);
          Serial.println("");

          Serial.println("writing eeprom ssid:");
          for (int i = 0; i < qsid.length(); ++i)
            {
              EEPROM.write(i, qsid[i]);
              Serial.print("Wrote: ");
              Serial.println(qsid[i]);
            }
          Serial.println("writing eeprom pass:");
          for (int i = 0; i < qpass.length(); ++i)
            {
              EEPROM.write(32+i, qpass[i]);
              Serial.print("Wrote: ");
              Serial.println(qpass[i]);
            }
          EEPROM.commit();
          content = "{\"Success\":\"saved to eeprom... reset to boot into new wifi\"}";
          statusCode = 200;
        } else {
          content = "{\"Error\":\"404 not found\"}";
          statusCode = 404;
          Serial.println("Sending 404");
        }
        server.send(statusCode, "application/json", content);
    });
  } else if (webtype == 0) {
    server.on("/", []() {
      IPAddress ip = WiFi.localIP();
      String ipStr = String(ip[0]) + '.' + String(ip[1]) + '.' + String(ip[2]) + '.' + String(ip[3]);
      server.send(200, "application/json", "{\"IP\":\"" + ipStr + "\"}");
    });
    server.on("/cleareeprom", []() {
      content = "<!DOCTYPE HTML>\r\n<html>";
      content += "<p>Clearing the EEPROM</p></html>";
      server.send(200, "text/html", content);
      Serial.println("clearing eeprom");
      for (int i = 0; i < 96; ++i) { EEPROM.write(i, 0); }
      EEPROM.commit();
    });
  }
}

void loop() {
  server.handleClient();
}
	#include <ESP8266WiFi.h>
	#include <ESP8266WebServer.h>
	#include <EEPROM.h>

	ESP8266WebServer server(80);

	const char* ssid = "test";
	const char* passphrase = "test";
	String st;
	String content;
	int statusCode;

	void setup() {
	Serial.begin(115200);
	EEPROM.begin(512);
	delay(10);
	Serial.println();
	Serial.println();
	Serial.println("Startup");
	// read eeprom for ssid and pass
	Serial.println("Reading EEPROM ssid");
	String esid;
	for (int i = 0; i < 32; ++i)
	{
	esid += char(EEPROM.read(i));
	}
	Serial.print("SSID: ");
	Serial.println(esid);
	Serial.println("Reading EEPROM pass");
	String epass = "";
	for (int i = 32; i < 96; ++i)
	{
	epass += char(EEPROM.read(i));
	}
	Serial.print("PASS: ");
	Serial.println(epass);
	if ( esid.length() > 1 ) {
	WiFi.begin(esid.c_str(), epass.c_str());
	if (testWifi()) {
	launchWeb(0);
	return;
	}
	}
	setupAP();
	}

	bool testWifi(void) {
	int c = 0;
	Serial.println("Waiting for Wifi to connect");
	while ( c < 20 ) {
	if (WiFi.status() == WL_CONNECTED) { return true; }
	delay(500);
	Serial.print(WiFi.status());
	c++;
	}
	Serial.println("");
	Serial.println("Connect timed out, opening AP");
	return false;
	}

	void launchWeb(int webtype) {
	Serial.println("");
	Serial.println("WiFi connected");
	Serial.print("Local IP: ");
	Serial.println(WiFi.localIP());
	Serial.print("SoftAP IP: ");
	Serial.println(WiFi.softAPIP());
	createWebServer(webtype);
	// Start the server
	server.begin();
	Serial.println("Server started");
	}

	void setupAP(void) {
	WiFi.mode(WIFI_STA);
	WiFi.disconnect();
	delay(100);
	int n = WiFi.scanNetworks();
	Serial.println("scan done");
	if (n == 0)
	Serial.println("no networks found");
	else
	{
	Serial.print(n);
	Serial.println(" networks found");
	for (int i = 0; i < n; ++i)
	{
	// Print SSID and RSSI for each network found
	Serial.print(i + 1);
	Serial.print(": ");
	Serial.print(WiFi.SSID(i));
	Serial.print(" (");
	Serial.print(WiFi.RSSI(i));
	Serial.print(")");
	Serial.println((WiFi.encryptionType(i) == ENC_TYPE_NONE)?" ":"*");
	delay(10);
	}
	}
	Serial.println("");
	st = "<ol>";
	for (int i = 0; i < n; ++i)
	{
	// Print SSID and RSSI for each network found
	st += "<li>";
	st += WiFi.SSID(i);
	st += " (";
	st += WiFi.RSSI(i);
	st += ")";
	st += (WiFi.encryptionType(i) == ENC_TYPE_NONE)?" ":"*";
	st += "</li>";
	}
	st += "</ol>";
	delay(100);
	WiFi.softAP(ssid, passphrase, 6);
	Serial.println("softap");
	launchWeb(1);
	Serial.println("over");
	}

	void createWebServer(int webtype)
	{
	if ( webtype == 1 ) {
	server.on("/", []() {
	IPAddress ip = WiFi.softAPIP();
	String ipStr = String(ip[0]) + '.' + String(ip[1]) + '.' + String(ip[2]) + '.' + String(ip[3]);
	content = "<!DOCTYPE HTML>\r\n<html>Hello from ESP8266 at ";
	content += ipStr;
	content += "<p>";
	content += st;
	content += "</p><form method='get' action='setting'><label>SSID: </label><input name='ssid' length=32><input name='pass' length=64><input type='submit'></form>";
	content += "</html>";
	server.send(200, "text/html", content);
	});
	server.on("/setting", []() {
	String qsid = server.arg("ssid");
	String qpass = server.arg("pass");
	if (qsid.length() > 0 && qpass.length() > 0) {
	Serial.println("clearing eeprom");
	for (int i = 0; i < 96; ++i) { EEPROM.write(i, 0); }
	Serial.println(qsid);
	Serial.println("");
	Serial.println(qpass);
	Serial.println("");

	Serial.println("writing eeprom ssid:");
	for (int i = 0; i < qsid.length(); ++i)
	{
	EEPROM.write(i, qsid[i]);
	Serial.print("Wrote: ");
	Serial.println(qsid[i]);
	}
	Serial.println("writing eeprom pass:");
	for (int i = 0; i < qpass.length(); ++i)
	{
	EEPROM.write(32+i, qpass[i]);
	Serial.print("Wrote: ");
	Serial.println(qpass[i]);
	}
	EEPROM.commit();
	content = "{\"Success\":\"saved to eeprom... reset to boot into new wifi\"}";
	statusCode = 200;
	} else {
	content = "{\"Error\":\"404 not found\"}";
	statusCode = 404;
	Serial.println("Sending 404");
	}
	server.send(statusCode, "application/json", content);
	});
	} else if (webtype == 0) {
	server.on("/", []() {
	IPAddress ip = WiFi.localIP();
	String ipStr = String(ip[0]) + '.' + String(ip[1]) + '.' + String(ip[2]) + '.' + String(ip[3]);
	server.send(200, "application/json", "{\"IP\":\"" + ipStr + "\"}");
	});
	server.on("/cleareeprom", []() {
	content = "<!DOCTYPE HTML>\r\n<html>";
	content += "<p>Clearing the EEPROM</p></html>";
	server.send(200, "text/html", content);
	Serial.println("clearing eeprom");
	for (int i = 0; i < 96; ++i) { EEPROM.write(i, 0); }
	EEPROM.commit();
	});
	}
	}

	void loop() {
	server.handleClient();
	}