AntiGuide: KitRelayN1

led1 = 3	
led2 = 4
gpio.mode(led1, gpio.OUTPUT)
gpio.mode(led2, gpio.OUTPUT)
gpio.write(led1, gpio.HIGH)
gpio.write(led2, gpio.HIGH)

print("Ready to start soft ap")

local str=wifi.ap.getmac();
local ssidTemp=string.format("%s%s%s",string.sub(str,10,11),string.sub(str,13,14),string.sub(str,16,17));

cfg={}
cfg.ssid="ESP8266_"..ssidTemp;
cfg.pwd="12345678"
wifi.ap.config(cfg)

cfg={}
cfg.ip="192.168.1.1";
cfg.netmask="255.255.255.0";
cfg.gateway="192.168.1.1";
wifi.ap.setip(cfg);
wifi.setmode(wifi.SOFTAP)

str=nil;
ssidTemp=nil;
collectgarbage();

print("Soft AP started")
print("Heep:(bytes)"..node.heap());
print("MAC:"..wifi.ap.getmac().."\r\nIP:"..wifi.ap.getip());


srv=net.createServer(net.TCP)
srv:listen(80,function(conn)
    conn:on("receive", function(client,request)
        local buf = "";
        buf = buf.."HTTP/1.1 200 OK\n\n"
        local _, _, method, path, vars = string.find(request, "([A-Z]+) (.+)?(.+) HTTP");
        if(method == nil)then
            _, _, method, path = string.find(request, "([A-Z]+) (.+) HTTP");
        end
        local _GET = {}
        if (vars ~= nil)then
            for k, v in string.gmatch(vars, "(%w+)=(%w+)&*") do
                _GET[k] = v
            end
        end
        
        if(_GET.pin == "ON1")then
              gpio.write(led1, gpio.LOW);
			  print("led1 on")
        elseif(_GET.pin == "OFF1")then
              gpio.write(led1, gpio.HIGH);
			print("led1 off")
        elseif(_GET.pin == "ON2")then
              gpio.write(led2, gpio.LOW);
			print("led2 on")
        elseif(_GET.pin == "OFF2")then
              gpio.write(led2, gpio.HIGH);
			print("led2 off")
        end
        client:send(buf);
        client:close();
        collectgarbage();
    end)
end)

////////////////////////////////////
//Relay Web Page by Elac 1/1/18
//Adapt by Andrologiciels (05/03/18) 
////////////////////////////////////////
// ESP-01S Relay Module vRef
////////////////////////
// http://192.168.0.67/?sCmd=FUNCTION1ON
// http://192.168.0.67/?sCmd=OFF
////////////////////////////////////
// WEB SERVER VERSION
/*-----------------------------------------------------------------------------------------------------
  Access Point                        Web Server  e.g.
  http://192.168.4.1                  http://192.168.0.67 (depends on your network)


  Works with generic ESP01

  Usage:  ACCESS Point:
         After upload search with your device (Phone, Tablet, etc.) for
         new WiFi. Select ESP_FastLED_Access_Point.
         Open in your webbrowser the URL 192.168.4.1
         Optional print a QR-Code with the URL on your lamp http://goqr.me/

         WEB SERVER:
         After upload open the Serial Monitor in Arduino and see what
         IP address is returned. In my case it is 192.168.1.252
         Open this IP address in a browser (PC or phone)

  From Gyro Gearloose J. Bruegl, Feb 2016

  /*------------------------------------------------------------------------------------------------------
  HTTP 1.1 Webserver for ESP8266 adapted to Arduino IDE

  From Stefan Thesen 04/2015
  https://blog.thesen.eu/http-1-1-webserver-fuer-esp8266-als-accesspoint/
  https://blog.thesen.eu/stabiler-http-1-1-wlan-webserver-mit-dem-esp8266-microcontroller
  -----------------------------------------------------------------------------------------------------*/
#include <ESP8266WiFi.h>
#include <WiFiClient.h>

const int RelayPin =  0;


byte crm; // Holds if command was recieved to change relay mode
byte  relayMode; // Holds current relay state

// Select EITHER ACCESS-Point  OR  WEB SERVER setup

/*
  // ACCESS-Point setup ------------------------------------------------------------------------------------------------------
  const char* ssid = "ESP Relay";
  const char* password = "";  // set to "" for open access point w/o password; or any other pw (min length = 8 characters)

  unsigned long ulReqcount;
  // Create an instance of the server on Port 80
  WiFiServer server(80);
  //IPAddress apIP(192, 168, 10, 1);   // if you want to configure another IP address
  void setup()
  {
  // Start Serial
  Serial.begin(9600);
  delay(500);
  // setup globals
  relayMode = 0;
  crm = 0;
  ulReqcount = 0;
  // prepare GPIO2
  // pinMode(2, OUTPUT);
  ///14 digitalWrite(2, 0);
  // AP mode
  WiFi.mode(WIFI_AP);
  //  WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0)); // if you want to configure another IP address
  WiFi.softAP(ssid, password);
  server.begin();
  }
*/
// End ACCESS-Point setup ---------------------------------------------------------------------------------------------------

// WEB SERVER setup ---------------------------------------------------------------------------------------------------------

const char* ssid = "xxxx"; // Enter router SSID
const char* password = "xxxx"; // Enter router password
unsigned long ulReqcount;
unsigned long ulReconncount;

WiFiServer server(80);  // Create an instance of the server on Port 80
void setup()
{
  // Start Serial
  //Serial.begin(9600); //or 115200
  pinMode(RelayPin, OUTPUT);
  pinMode(LED_BUILTIN, OUTPUT);     // Initialize the LED_BUILTIN pin as an output
  ///////////
  //Serial.print("Connecting to ");
  //Serial.println(ssid);
  //////////
  relayMode = 0;
  crm = 0;
  ulReqcount = 0;       // Setup globals for Webserver
  ulReconncount = 0;
  // Set static IP or comment out // next 4 lines for router to assign
  /*
    IPAddress ip(192, 168, 1, 99); // Put the static IP addres you want to assign here
    IPAddress gateway(192, 168, 0, 254); // Put your router gateway here
    IPAddress subnet(255, 255, 255, 0);
    WiFi.config(ip, gateway, subnet);
    WiFi.mode(WIFI_STA);
  */
  WiFi.mode(WIFI_STA);
  WiFiStart();
  ///////////////
  //Serial.println("");
  //Serial.println("WiFi connected");
  //Serial.println("IP address: ");
  //Serial.println(WiFi.localIP());
  //////////

}
// End WEB SERVER setup -----------------------------------------------------------------------------------------------------
void WiFiStart()
{
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    //Serial.println(".");
  }
  server.begin();
}
/////////////////////////////////////////////////////////////
void loop() {
  Webserver();
  CheckForChange();
};
///////////////////////////////////////////////////////////
void CheckForChange() {
  if (crm == 1)
  {
    switch (relayMode) {
      case 0: {
          Off();
        }
        break;
      case 1: {
          On();
        }
        break;
    }
    crm = 0;
  }
};
///////////////////////////////////////////////////////////////////////////
void Webserver() {   /// complete web server (same for access point) ////////////////////////////////////////////////////////
  // Check if a client has connected
  WiFiClient client = server.available();
  if (!client)
  {
    return;
  }
  // Wait until the client sends some data
  unsigned long ultimeout = millis() + 250;
  while (!client.available() && (millis() < ultimeout) )
  {
    delay(1);
  }
  if (millis() > ultimeout)
  {
    return;
  }
  // Read the first line of the request
  String sRequest = client.readStringUntil('\r');
  client.flush();
  // stop client, if request is empty
  if (sRequest == "")
  {
    client.stop();
    return;
  }
  // get path; end of path is either space or ?
  // Syntax is e.g. GET /?pin=MOTOR1STOP HTTP/1.1
  String sPath = "", sParam = "", sCmd = "";
  String sGetstart = "GET ";
  int iStart, iEndSpace, iEndQuest;
  iStart = sRequest.indexOf(sGetstart);
  if (iStart >= 0)
  {
    iStart += +sGetstart.length();
    iEndSpace = sRequest.indexOf(" ", iStart);
    iEndQuest = sRequest.indexOf("?", iStart);
    if (iEndSpace > 0)
    {
      if (iEndQuest > 0)
      {
        // there are parameters
        sPath  = sRequest.substring(iStart, iEndQuest);
        sParam = sRequest.substring(iEndQuest, iEndSpace);
      }
      else
      {
        // NO parameters
        sPath  = sRequest.substring(iStart, iEndSpace);
      }
    }
  }
  if (sParam.length() > 0)
  {
    int iEqu = sParam.indexOf("=");
    if (iEqu >= 0)
    {
      sCmd = sParam.substring(iEqu + 1, sParam.length());
      char carray[4];                                // values 0..255 = 3 digits; array = digits + 1
      sCmd.toCharArray(carray, sizeof(carray));      // convert char to the array
    }
  }

  //////////////////////////////
  // format the html response //
  //////////////////////////////
  String sResponse, sHeader;
  ///////////////////////////////
  // 404 for non-matching path //
  ///////////////////////////////
  if (sPath != "/")
  {
    sResponse = "<html><head><title>404 Not Found</title></head><body><h1>Not Found</h1><p>The requested URL was not found on this server.</p></body></html>";
    sHeader  = "HTTP/1.1 404 Not found\r\n";
    sHeader += "Content-Length: ";
    sHeader += sResponse.length();
    sHeader += "\r\n";
    sHeader += "Content-Type: text/html\r\n";
    sHeader += "Connection: close\r\n";
    sHeader += "\r\n";
  }
  //////////////////////////
  // format the html page //
  //////////////////////////
  else
  {
    ulReqcount++;
    sResponse  = "<html><head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"><title>ESP8266 Relay</title></head>";
    sResponse += "<body bgcolor=\"#1F1F1F\" >";
    sResponse += "<div style='text-align:center; height:96%; border:10px groove blue; border-radius: 5px;'>";
    sResponse += "<strong><h1><i><a style=color:#00CCCC>ESP Relay</a></i></h1></strong><br><br><br><br>";
    ///// Buttons
    sResponse += "<form action=\"?sCmd\">";
    sResponse += "<button name=\"sCmd\" value=\"FUNCTION1ON\" style=\"color:yellow; background-color:black; font-size:130%; width:80px; margin-right:20px;\" onclick=\'this.form.submit();'>ON</button>";
    sResponse += "<button name=\"sCmd\" value=\"OFF\" style=\"color:yellow; background-color:black; font-size:130%; width:80px; margin-left:20px;\" onclick=\'this.form.submit();'>OFF</button>";
    sResponse += "</select></form><br><br><br><br>";
    /////////////////////////////
    // react on parameters //
    /////////////////////////////
    if (sCmd.length() > 0)
    {
      // write received command to html page
      // change the effect
      if (sCmd.indexOf("FUNCTION1ON") >= 0)
      {
        relayMode = 1;
        crm = 1;
      }
      else if (sCmd.indexOf("OFF") >= 0)
      {
        relayMode = 0;
        crm = 1;
      }
    };
    sResponse += "<font size=+2><a style=color:#FFFDD2 >Relay State:</a><i>&nbsp;";
    switch (relayMode) {
      case 0:
        sResponse += "<a style=color:#FF0E0E >Off</a>";
        break;
      case 1:
        sResponse += "<a style=color:#00FF00 >On</a></i>";
        break;
    }

    sResponse += "</div></body></html>";
    sHeader  = "HTTP/1.1 200 OK\r\n";
    sHeader += "Content-Length: ";
    sHeader += sResponse.length();
    sHeader += "\r\n";
    sHeader += "Content-Type: text/html\r\n";
    sHeader += "Connection: close\r\n";
    sHeader += "\r\n";
  }
  // Send the response to the client
  client.print(sHeader);
  client.print(sResponse);
  // and stop the client
  client.stop();
};  // End of web server
///////////////////////////////////////////////////////////////////////////
/// END of complete web server /////////////////////////////////////
///Button functions
void Off() {
  digitalWrite(LED_BUILTIN, HIGH);
  digitalWrite(RelayPin, LOW);
};

void On() {
  digitalWrite(LED_BUILTIN, LOW);
  digitalWrite(RelayPin, HIGH);
};
///End of sketch/////////////////////////////////////////