Few devices have hit the hacker/maker word with quite as large a bang as the ESP8266. [Brian] first reported a new $5 WiFi module back ... board ATmega328 for Arduino Uno compatibility, and ...

Someone has invented a way to add Wi-Fi to a standard Arduino Uno, by proposing a module ... The proposed 28pin DIL module includes a surface-mount ATmega328, plus an Espressif ESP8285 for the Wi-Fi ...

A Single In-line Memory Module (SIMM ... just made a little library that allows you to interface these modules to the Atmega328p-based Arduino UNO in order to gain some memory space.