ESP8266 WIFI wireless module details

 ESP8266 is an impressive, low cost WiFi module suitable for adding WiFi functionality to an existing microcontroller project via a UART serial connection. The module can be reprogrammed to act as a standalone WiFi connected device– just need add power! 

• 802.11 b/g/n protocol Wi-Fi Direct (P2P), 

• soft-AP Integrated TCP/IP protocol stack

• UART serial connection