IOT Development Board with inbuilt ATmega328 and ESP8266 is inbuilt esp8266 wifi with Atmega328. It is compatible with Arduino IDE & ATmel AVR Studio.
The ESP8266 is a low-cost Wi-Fi microchip with full TCP/IP stack and microcontroller capability produced by Shanghai-based Chinese manufacturer, Espressif Systems. The ESP8285 is an ESP8266 with 1 MiB of built-in flash, allowing for single-chip devices capable of connecting to Wi-Fi.
Soon, we are updating the datasheet of this board.