WiFi3 Click (MIKROE-1769) ESP8266 

WiFi3 is a complete self-contained WiFi solution carrying the ESP8266 module with a system on chip. The module has an integrated TCP/IP stack, supports Wi-Fi Direct (p2p) and boasts powerful processing and storage capabilities that offload all networking functions from the MCU. Alongside a standard mikroBUS socket, with WiFi3 click you’ll also have additional 6 GPIO pins at your disposal. WiFi3 communicates with the target board microcontroller through mikroBUS™ RX, TX, AN (PWD) and RST (G15) lines. The board uses a 3.3V power supply only.