ESP8266 ESP-01 Serial WiFi Wireless Transceiver Module
The ESP 01 ESP8266 Serial WIFI Wireless Transceiver Module may be a self-contained SOC with integrated TCP/IP protocol stack which will give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor.
Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that’s just out of the box)! The ESP8266 module is a particularly cost-effective board with an enormous , and ever-growing, community.
