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Arduino YUN

The Arduino YUN has built in ethernet and Wifi Support with the familiar UNO form factor.

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Availability: IN STOCK

Tinkersphere

TS-539

$74.99

The Arduino Yun is what you're looking for if you want an Arduino board that has built in wifi and ethernet capabilities. Based on the ATmega32u4 and the Atheros AR9331 which supports OpenWrt-Yun, a Linux distribution based on OpenWrt. The YUN compared to the more popular UNO R3 has built-in Ethernet and WiFi support, micro-SD card slot, 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs) in addition to a USB port, a 16 MHz crystal oscillator, a micro USB connection, an ICSP header, and a 3 reset buttons.

Specifications:

MicrocontrollerATmega32u4
Operating Voltage5V
Input Voltage5V
Digital I/O Pins20
PWM Channels7
Analog Input Channels12
DC Current per I/O Pin40 mA
DC Current for 3.3V Pin50 mA
Flash Memory32 KB (of which 4 KB used by bootloader)
SRAM2.5 KB
EEPROM1 KB
Clock Speed16 MHz
Linux microprocessor
ProcessorAtheros AR9331
ArchitectureMIPS @400MHz
Operating Voltage3.3V
EthernetIEEE 802.3 10/100Mbit/s
WiFiIEEE 802.11b/g/n
USB Type-A2.0 Host
Card ReaderMicro-SD only
RAM64 MB DDR2
Flash Memory16 MB
PoE compatible 802.3af card support (see the note below) 
Length73 mm
Width53 mm
Weight32 g