SunFounder 3in1 Kit
1.2 ESP8266 Module
The ESP8266 is a low-cost Wi-Fi microchip, with built-in TCP/IP networking software, and microcontroller capability,
produced by Espressif Systems in Shanghai, China.
The chip first came to the attention of Western makers in August 2014 with the ESP-01 module, made by a third-
party manufacturer Ai-Thinker. This small module allows microcontrollers to connect to a Wi-Fi network and make
simple TCP/IP connections using Hayes-style commands. However, at first, there was almost no English-language
documentation on the chip and the commands it accepted. The very low price and the fact that there were very few
external components on the module, which suggested that it could eventually be very inexpensive in volume, attracted
many hackers to explore the module, the chip, and the software on it, as well as to translate the Chinese documentation.
Pins of ESP8266 and their functions:
1.2. ESP8266 Module 7