What is ESP8266 ?

A. WIFI module वाईफ़ाई मॉड्यूल

B. Sensor सेंसर

C. Board बोर्ड

D. USB cable यूएसबी केबल

Correct Answer is :

A. WIFI module

Explanation

The ESP8266 is a low-cost Wi-Fi microchip, with built-in TCP/IP networking software, and microcontroller capability, produced by Espressif Systems