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Home » NEWEST Products » New by Manufacturer » Arduino » Yún Microcontroller Board - Arduino
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Arduino Yún Microcontroller Board

Arduino Yún Microcontroller Board

Arduino Yún Microcontroller Board is the first stand-alone Arduino featuring built-in Ethernet and WiFi support, removing the need for a board as well as a WiFi shield. It is based on the Atmel ATmega32u4 and the Atheros AR9331. The Atheros processor supports a Linux distribution based on OpenWRT named Linino. The board has built-in Ethernet and WiFi support, a USB-A port, micro-SD card slot, 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16MHz crystal oscillator, a micro USB connection, an ICSP header, and a 3 reset buttons. The Yún distinguishes itself from other Arduino boards in that it can communicate with the Linux distribution onboard, offering a powerful networked computer with the ease of Arduino. In addition to Linux commands like cURL, users can write their own shell and python scripts for robust interactions. The Yún has built-in USB communication, eliminating the need for a secondary processor. This allows the Yún to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.

AVR Arduino MCU Features
  • Microcontroller: ATmega32u4
  • Operating Voltage: 5V
  • Input Voltage: 5V
  • Digital I/O Pins: 20
  • PWM Channels: 7
  • Analog Input Channels: 12
  • DC Current per I/O Pin: 40mA
  • DC Current for 3.3V Pin: 50mA
  • Flash Memory: 32KB (of which 4KB used by bootloader)
  • SRAM: 2.5 KB
  • EEPROM: 1KB
  • Clock Speed: 16MHz
Linux Microprocessor Features
  • Processor: Atheros AR9331
  • Architecture: MIPS @400MHz
  • Operating Voltage: 3.3V
  • Ethernet: IEEE 802.3 10/100Mbit/s
  • WiFi: IEEE 802.11b/g/n
  • USB Type-A: 2.0 Host/Device
  • Card Reader: Micro-SD only
  • RAM: 64MB DDR2
  • Flash Memory: 16MB
  • PoE compatible 802.3af card support


Application Example

Application Example

Board Call-Outs

Board Call-Outs
  • Arduino