How to connect Wi-Fi shield ESP-12E-ESP8266-UART-WIFI-Wireless-Shield with Arduino I have bought this shield from ebay and now I don't know how to use it, ESP 12E ESP8266 UART WIFI Wireless Shield for Arduino UNO R3 Bouclier Sans filfr:



There are no instructions in the box or anywhere on internet for this board. The only description I found everywhere is this:


  Description: 
  
  
  Standard pin interface to achieve full compatibility with the pitch Arduino Uno, Mega and so on. (Unless the standard size Arduino, such
  as Nano, Mini) 
  3.3V power supply using advanced chip (with the official expansion board power chip CC3000 same), so 3.3V Arduino board provided more
  accurate, so ESP8266 as official CC3000 chip work as normal, there is
  no gap. 
  It leads to a WiFi module power supply / service interface to facilitate developers to extend the power supply and maintenance. 
  Onboard ESP8266-12 stable industrial grade serial WiFi module, using an enhanced PCB antenna, signal better. 
  You can quickly switch DIP switch ESP8266-12 industrial grade WiFi stable operation mode (such as operating mode and upgrade mode)
  module, integrated serial chip, quickly flashing the firmware. 
  Built-in 5V to 3.3V TTL level converter to prevent high-pressure Arduino TTL level of the WiFi module damage. 
  Onboard ESP8266-12 stable industrial grade WiFi module with a metal shield, immunity to interference. 
  Onboard ESP8266-12 standard pitch leads to a stable industrial grade WiFi module all interfaces, enabling developers to easily
  develop deep. 
  Use stackable design, it can continue to accumulate above the other modules, easy to use. 
  Onboard four LED displays the status of ESP8266, namely PWR, DFU, AP, STA
  


What should be the board settings for this?

I am new to electronics please help me how can I connect this with Arduino.
There are some fake Modules on eBay! Only after changing the wiring can you use them. The fake modules have the wrong text printed on it.


  Moer info $ tech 


instead of


  More info &amp; tech




But when you change the wiring you can use the shield!

The two transistors which are connected to Arduino board pin 0 and 1 have to disconnected. Also the connection to the switches 1 and 2 have to change. Then you can stack ESP-12 shield on the Arduino. You can now flash the Arduino Uno when you switch off (switch 1 and 2) With the old wiring you can't use it because the transistors are wrong connected. 

The voltage divider is need for 3,3 V ESP-12 RX pin