To działa.

#include <ESP8266WiFi.h>

int port = 12345;  //Port number
WiFiServer server(port);

#ifndef APSSID
#define APSSID "Robot"
#define APPSK  "haslomaslo"
#endif

/* Set these to your desired credentials. */
const char *ssid = APSSID;
const char *password = APPSK;

int count=0;
int IN1=12;
int IN2=14;
int IN3=4;
int IN4=5;
int ENA=0;
int ENB=13;
int led=2;
//=======================================================================
//                    Power on setup
//=======================================================================
void setup()
{
  pinMode(IN1,OUTPUT);
  pinMode(IN2,OUTPUT);
  pinMode(IN3,OUTPUT);
  pinMode(IN4,OUTPUT);
  pinMode(ENA,OUTPUT);
  pinMode(ENB,OUTPUT);
  pinMode(led,OUTPUT);
  WiFi.mode(WIFI_STA);
  WiFi.disconnect();
  delay(100);

  delay(2000);
  Serial.begin(115200);
  Serial.println();
  Serial.print("Configuring access point...");
  /* You can remove the password parameter if you want the AP to be open. */

  IPAddress ip(192,168,1,200);
  IPAddress gateway(192,168,1,254);
  IPAddress subnet(255,255,255,0);
  WiFi.softAPConfig(ip, gateway, subnet);
  WiFi.softAP(ssid);
  delay(1000);
  Serial.print("AP IP address: ");
  Serial.println(WiFi.localIP());  //Serial.println(myIP);

  server.begin();
  Serial.print("Open Telnet and connect to IP:");
  Serial.println(WiFi.localIP());  //Serial.print(myIP);
  Serial.print(" on port ");
  Serial.println(port);
  digitalWrite(IN1,LOW);
  digitalWrite(IN2,LOW);
  digitalWrite(IN3,LOW);
  digitalWrite(IN4,LOW);
  digitalWrite(led,LOW);
  delay(500);
  digitalWrite(led,HIGH);
  delay(500);
  digitalWrite(led,LOW);
}
//=======================================================================
//                    Loop
//=======================================================================

void loop()
{
  WiFiClient client = server.available();

  if (client) {
    if(client.connected())
    {
      Serial.println("Client Connected");
      digitalWrite(led,LOW);
      delay(500);
      digitalWrite(led,HIGH);
      delay(500);
      digitalWrite(led,LOW);
      delay(500);
      digitalWrite(led,HIGH);
      delay(500);
      digitalWrite(led,LOW);
    }

    while(client.connected()){
      while(client.available()>0){
        // read data from the connected client
        //Serial.write(client.read());
        int readed = client.read();
        if(readed=='u')
        {
          digitalWrite(IN1,HIGH);
          digitalWrite(IN2,LOW);
          digitalWrite(IN3,HIGH);
          digitalWrite(IN4,LOW);
  analogWrite(ENA, 600);
  analogWrite(ENB, 600);
          Serial.println("u");
          delay(250);
        }
        else if (readed=='d')
        {
          digitalWrite(IN1,LOW);
          digitalWrite(IN2,HIGH);
          digitalWrite(IN3,LOW);
          digitalWrite(IN4,HIGH);
  analogWrite(ENA, 600);
  analogWrite(ENB, 600);
          Serial.println("d");
          delay(250);
        }
        else if (readed=='r')
        {
          digitalWrite(IN1,LOW);
          digitalWrite(IN2,HIGH);
          digitalWrite(IN3,HIGH);
          digitalWrite(IN4,LOW);
  analogWrite(ENA, 600);
  analogWrite(ENB, 600);
          Serial.println("r");
          delay(100);
        }
        else if (readed=='l')
        {
          digitalWrite(IN1,HIGH);
          digitalWrite(IN2,LOW);
          digitalWrite(IN3,LOW);
          digitalWrite(IN4,HIGH);
  analogWrite(ENA, 600);
  analogWrite(ENB, 600);
          Serial.println("l");
          delay(100);
        }
        else if (readed=='s')
        {
          digitalWrite(IN1,LOW);
          digitalWrite(IN2,LOW);
          digitalWrite(IN3,LOW);
          digitalWrite(IN4,LOW);
  analogWrite(ENA, 600);
  analogWrite(ENB, 600);
          Serial.println("s");
          delay(250);
        }
        else if (readed==13)
        {
        }
        else
        {
          delay(250);
          Serial.write("ERROR");
        }
         digitalWrite(IN1,LOW);
         digitalWrite(IN2,LOW);
         digitalWrite(IN3,LOW);
         digitalWrite(IN4,LOW);
  delay(500);
      }


      //Send Data to connected client
      while(Serial.available()>0)
      {
        client.write(Serial.read());
      }
    }
    client.stop();
    Serial.println("Client disconnected");
  }
}