Arduino YÚN is the perfect board to use when designing connected devices and, more in general, Internet of Things projects. It combines the power of Linux with the ease of use of Arduino
The Arduino Yún is a microcontroller board based on the ATmega32u4 and the Atheros AR9331. The Atheros processor supports a Linux distribution based on OpenWrt named Linino OS. The board has built-in Ethernet and WiFi support, a USB-A port, micro-SD card slot, 20 digital input/output pins (7 of them can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, an ICSP header, and 3 reset buttons.
NB : In some countries, it is prohibited to sell WiFi enabled devices without government approval. While waiting for proper certification, some local distributors are disabling WiFi functionality. Check with your dealer before purchasing a Yún if you believe you may live in such a country.
The Yún distinguishes itself from other Arduino boards by its ability to communicate with the Linux distribution onboard, offering a powerful networked computer with the ease of an Arduino. In addition to Linux commands like the cURL, you can write your own shell and python scripts for robust interactions. The Yún is similar to the Leonardo with the ATmega32u4, except that it has Linux on board. (has built-in USB communication, eliminating the need for a secondary processor).
NB: Yun Release 5 The new Arduino Yun R5 differs substantially from the previous release in these features:
- The power supply system provides 5V on AREF;
- The layout has been modified, adding two holes for USB signals and two holes for GP6 and GPIO13(LED2).
You can find here your board warranty informations.
In the Getting Started section, you can find all the information you need to configure your board. Ready to get started? If you bought your Arduino Yún before Oct 2014, please check the Yún Open WRT OS Getting Started Page, if you bought it after 2015 check Arduino Yún Linino OS Getting Started page.
- On the Software on the Arduino Forum
- On Projects on the Arduino Forum
- On the Product itself through our Customer Support
Warning: Arduino YÚN is not compatible with 12V PoE module.
AVR Arduino microcontroller
Microcontroller ATmega32U4 Operating Voltage 5V Input Voltage 5 V Digital I/O Pins 20 PWM Output 7 Analog I/O Pins 12 DC Current per I/O Pin 40 mA on I/O Pins; 50 mA on 3,3 Pin Flash Memory 32 KB (of which 4 KB used by bootloader) SRAM 2.5 KB EEPROM 1 KB Clock Speed 16 MHz
Processor Atheros AR9331 Architecture MIPS Operating Voltage 3.3V Ethernet 802.3 10/100Mbit/s WiFi 802.11b/g/n 2.4 GHz USB Type 2.0 Host Card Reader Micro-SD RAM 64 MB DDR2 Flash Memory 16 MB SRAM 2.5 KB EEPROM 1 KB Clock Speed 400 MHz