need help with wifi

hello all i have set up a programm to controll ws2812b led via wifi with an esp witch logs in in my wifi network now i wanted to controll the same lights in my car and i dont know ho to setup an network to log in my phone and then controll the led's

Thanks for your help

(compleet skeetch is Attached)

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>

const char* ssid = "+++++";
const char* password = "+++++";

ESP8266WebServer server(80);

#include <Adafruit_NeoPixel.h>

#define PIN D4

Adafruit_NeoPixel strip = Adafruit_NeoPixel(394, PIN, NEO_GRB + NEO_KHZ800);

const int led = 394;

void handleRoot() {
  server.send(200, "text/plain", "usage:\n/rainbow  \n/randomColorFill \n/red \n/blue \n/orange \n/aqua \n/gruen \n/crimson \n/purpel \n/dunkel \n/hell \n/aus");

}

void handleNotFound(){
  digitalWrite(led, 1);
  String message = "File Not Found\n\n";
  message += "URI: ";
  message += server.uri();
  message += "\nMethod: ";
  message += (server.method() == HTTP_GET)?"GET":"POST";
  message += "\nArguments: ";
  message += server.args();
  message += "\n";
  for (uint8_t i=0; i<server.args(); i++){
    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
  }
  server.send(404, "text/plain", message);
  digitalWrite(led, 0);

Led.ino (10.8 KB)