Arduino Compatible Yun Atmega32u4 Microcontroller Development Board<br>Description:<br>The Arduino Compatible Yun is a microcontroller board based on the ATmega32u4 and the Atheros AR9331. The Atheros processor supports a Linux distribution based on OpenWrt named OpenWrt-Yun. Which make people can use Linux System on the board， as a strong net computer with light and convenience.<br>Feature:<br>The Arduino Compatible YunBuilt-in EthernetWiFi supportA USB-A portMicro-SD card slot20 digital input\/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs)A 16 MHz crystal oscillatorA micro USB connectionAn ICSP headerA 3 reset buttons<br>Specification:<br>AVR Microcontroller:<br>Microcontroller: ATmega32u4Operating Voltage: 5VInput Voltage: 5VDigital I\/O Pins: 20PWM Channels: 7Analog Input Channels: 12DC Current per I\/O Pin: 40mADC Current for 3.3V Pin: 50mAFlash Memory: 32KB (of which 4KB used by bootloader)SRAM: 2.5KBEEPROM: 1KBClock Speed: 16MHz<br>Linux Microprocessor:<br>Processor: Atheros AR9331Architecture: MIPS @400MHzOperating Voltage: 3.3VEthernet: IEEE 802.3 10\/100Mbit\/sWiFi: IEEE 802.11b\/g\/nUSB Type-A: 2.0 HostCard Reader: Micro-SD onlyRAM: 64MB DDR2Flash Memory: 16MB<br>Package included:<br>1 x Arduino Compatible Yun