Notes

#include <ESP8266WiFi.h> //https://github.com/esp8266/Arduino
#include <EEPROM.h>
//needed for library
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h> //https://github.com/tzapu/WiFiManager
//http client libraries
#include <Arduino.h>

#include <ESP8266HTTPClient.h>
#define USE_SERIAL Serial
int id=0,pass=0,val=0,sts=0,othrs=0,vals=0,usid=0,a,stid=0,stc=0;
int p1=1,p2=1,p3=1,p4=1;
String payload,cname;
int test=0;
WiFiManager wifiManager;
void EEPROMWriteInt(int p_address, int p_value)
{
EEPROM.begin(50);
byte lowByte = ((p_value >> 0) & 0xFF);
byte highByte = ((p_value >> 8) & 0xFF);
EEPROM.write(p_address, lowByte);
EEPROM.write(p_address + 1, highByte);
EEPROM.commit();
}

//This function will read a 2 byte integer from the eeprom at the specified address and address + 1
unsigned int EEPROMReadInt(int p_address)
{
EEPROM.begin(50);
byte lowByte = EEPROM.read(p_address);
byte highByte = EEPROM.read(p_address + 1);
EEPROM.commit();
return ((lowByte << 0) & 0xFF) + ((highByte << 8) & 0xffFF);
}
void setup() {

pinMode(D0, OUTPUT);
pinMode(D1, OUTPUT);
pinMode(D2, OUTPUT);
pinMode(D3, OUTPUT);

// put your setup code here, to run once:

Serial.begin(115200);

Serial.println();
//WiFiManager
//Local intialization. Once its business is done, there is no need to keep it around

//reset saved settings

// wifiManager.resetSettings();
// EEPROMWriteInt(10, 0);
//EEPROMWriteInt(20, 0);
//EEPROMWriteInt(30, 0);

//set custom ip for portal
//wifiManager.setAPConfig(IPAddress(10,0,1,1), IPAddress(10,0,1,1), IPAddress(255,255,255,0));

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

pass = EEPROMReadInt(10);
Serial.println("pass:");
Serial.println(pass);
id = EEPROMReadInt(20);
Serial.println("id");
Serial.println(id);
usid = EEPROMReadInt(30);
Serial.println("usid");
Serial.println(usid);
if(id==usid&&id==pass&&pass==usid)
{id=0;usid=0;pass=0;}
if(id==usid)
{id=0;usid=0;}
if(pass==0)
{ wifiManager.resetSettings();
wifiManager.autoConnect();
a = wifiManager.getusid();
Serial.println("Wrote Usid:");
Serial.println(a);
EEPROMWriteInt(10, a);
Serial.println("EEPROM");
Serial.println(EEPROMReadInt(10));
pass=a;
}
else
{
wifiManager.setTimeout(200);
if(!wifiManager.autoConnect()&&pass==0) {
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 :)");

for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] WAIT %d...n", t);
USE_SERIAL.flush();
delay(1000);
}
cname = wifiManager.getcid();
}
void work()
{

if(p1==1)
{
digitalWrite(D0, HIGH);
}
else if(p1==0)
{
digitalWrite(D0, LOW);
}
if(p2==1)
{
digitalWrite(D1, HIGH);
}
else if(p2==0)
{
digitalWrite(D1, LOW);
}
if(p3==1)
{
digitalWrite(D2, HIGH);
}
else if(p3==0)
{
digitalWrite(D2, LOW);
}

if(p4==1)
{
digitalWrite(D3, HIGH);
}
else if(p4==0)
{
digitalWrite(D3, LOW);
}
}
void loop() {

HTTPClient http;
if(stc==0)
{

String kresource = String("http://iotsistem.000webhostapp.com/iot.php?id=") + id + String("&pass=") + pass + String("&val=") + val + String("&sts=") + sts + String("&othrs=") + othrs + String("&vals=") + vals + String("&usid=") + usid+ String("&name=") + cname+ String("&p1=") + p1+ String("&p2=") + p2+ String("&p3=") + p3+ String("&p4=") + p4;
Serial.println(kresource);
http.begin(kresource);
int httpCode = http.GET();
if(httpCode == HTTP_CODE_OK) {
payload = http.getString();
Serial.println(payload);
}
else {
USE_SERIAL.printf("[HTTP] GET... failed, error: %sn", http.errorToString(httpCode).c_str());
/* if(test>400)
if (!wifiManager.startConfigPortal()) {
test=0;
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);
}*/
}
http.end();
if(payload=="")
{work();}
if(pass!=0&&id!=0)
{stc=1;}
if(payload.charAt(0)=='!')
{
bool s=false;
int j=0;
int k=0;
int p=0,mn=0;
char buf[30];
while(payload.charAt(j)!='#')
{
j++;
if(payload.charAt(j)!='*')
{
buf[p]=payload.charAt(j);
p++;
Serial.println(buf);
Serial.println(payload.charAt(j));
}
else if(payload.charAt(j)=='*')
{
k++;
if(k==1)
{
if(buf[0]=='r')
{wifiManager.resetSettings();
wifiManager.autoConnect();
a = wifiManager.getusid();
Serial.println("Wrote Usid:");
Serial.println(a);
EEPROMWriteInt(10, a);
Serial.println("EEPROM");
Serial.println(EEPROMReadInt(10));
pass=a;
usid=0;
id=0;

}
if(pass!=0&&buf[0]=='1')
{
mn=1;
p=0;
memset(buf, 0, sizeof(buf));
}
if(pass!=0&&buf[0]=='2')
{
mn=2;
p=0;
memset(buf, 0, sizeof(buf));
}
}
if(k==1&&pass==0)
{
p=0;
Serial.println(buf);
id=atoi(buf);
Serial.println(id);
EEPROMWriteInt(20, id);
Serial.println("Wrote ID:");
Serial.println(id);
memset(buf, 0, sizeof(buf));

}
else if(k==2&&pass==0)
{
p=0;
Serial.println(buf);
pass=atoi(buf);
EEPROMWriteInt(10, pass);
Serial.println("Wrote pass:");
Serial.println(pass);
Serial.println(pass);
memset(buf, 0, sizeof(buf));
}
else if(k==2&&mn==1)
{
p=0;

id=atoi(buf);
Serial.println(id);
EEPROMWriteInt(20, id);
Serial.println("Wrote ID:");
Serial.println(id);
Serial.println(EEPROMReadInt(20));
memset(buf, 0, sizeof(buf));
}
else if(k==3&&mn==1)
{
p=0;
Serial.println(EEPROMReadInt(30) );

usid=atoi(buf);
EEPROMWriteInt(30, usid);
Serial.println("Wrote pass:");
Serial.println(usid);
Serial.println(usid);
memset(buf, 0, sizeof(buf));
}
else if(k==2&&mn==2)
{
p=0;
p1=atoi(buf);

if(p1==1)
{
digitalWrite(D0, HIGH);
}
else if(p1==0)
{
digitalWrite(D0, LOW);
}
memset(buf, 0, sizeof(buf));
}
else if(k==3&&mn==2)
{
p=0;
p2=atoi(buf);
if(p2==1)
{
digitalWrite(D1, HIGH);
}
else if(p2==0)
{
digitalWrite(D1, LOW);
}
memset(buf, 0, sizeof(buf));
}
else if(k==4&&mn==2)
{
p=0;
p3=atoi(buf);
if(p3==1)
{
digitalWrite(D2, HIGH);
}
else if(p3==0)
{
digitalWrite(D2, LOW);
}
memset(buf, 0, sizeof(buf));
}
else if(k==5&&mn==2)
{
p=0;
p4=atoi(buf);
if(p4==1)
{
digitalWrite(D3, HIGH);
}
else if(p4==0)
{
digitalWrite(D3, LOW);
}
memset(buf, 0, sizeof(buf));
}
else
{

}

}
else{}

}

Serial.println(id);
Serial.println(pass);

}
}
else{
String kresource = String("http://iotsistem.000webhostapp.com/devices/")+id+String(".txt");
Serial.println(kresource);
http.begin(kresource);
int httpCode = http.GET();
if(httpCode == HTTP_CODE_OK) {
payload = http.getString();
Serial.println(payload);
}
else {
USE_SERIAL.printf("[HTTP] GET... failed, error: %sn", http.errorToString(httpCode).c_str());
}

if(payload.charAt(0)=='!')
{
bool s=false;
int j=0;
int k=0;
int p=0,mn=0;
char buf[30];
while(payload.charAt(j)!='#')
{
j++;
if(payload.charAt(j)!='*')
{
buf[p]=payload.charAt(j);
p++;
Serial.println(buf);
Serial.println(payload.charAt(j));
}
else if(payload.charAt(j)=='*')
{
k++;
if(k==1)
{
if(stid!=atoi(buf))
{
stid=atoi(buf);
stc=0;
}
memset(buf, 0, sizeof(buf));

}
}
}
}
}
delay(500);
}