The module's core processor ESP8266 integrates an enhanced version of Tensilica's L106 Diamond series 32- bit processor withsmaller package size and 16 bit compact mode, main frequency support 80 MHz and 160 MHz, support RTOS, integrated Wi-Fi MAC / BB /RF / PA / LNA, on-board PCB antenna.
The module supports standard IEEE802.11 b / g / n protocol, a complete TCP / IP protocol stack.it can be used to hostthe application or to offload Wi-Fi networking functions from another application processor.