The Arduino Yun Mini is a microcontroller board that combines the ease of use of an Arduino with the power of Linux in a remarkably small package. It is based around an Atmel ATmega32u4 microcontroller and the Atheros AR9331, which supports a Linux distribution called Linino. The board features Wi-Fi support as well as a micro-USB port, microSD card slot, 20x digital I/O pins, a crystal oscillator, a micro USB connection, ICSP header, 5 x status LEDs, and 3x reset buttons. The Yun can communicate with the onboard Linux distro, giving a powerful networked computer with all the programming possibilities of an Arduino Leonardo in a package that is barely wider than the Atheros module.
Automatic software reset and bootloader initialisation
