ESP8266 Serial WiFi Transceiver Module (ESP-05) is a cheap and easy way to connect any small micro-controller platform, like Arduino, wirelessly to Internet. ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.
Serial UART Interface
WIFI Direct (P2P), SOFT-AP
The AT commands is perfect, efficient,concise
Support three modes: AP, STA and AP+STA coexistence mode
UFL Antenna Connector
Berg strip connectable