NodeMCU ESP-12E Module,Based on ESP8266,CP2102 ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution Allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor. Wifi Wireless Transceiver Module Esp-01 Compatible with Arduino Breadboard Power Supply Module ;Fit for : MB-102 Breadboard 3.3V/5V For Arduino Board