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Arduino Yun Wireless Development Board

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About this product


  • Start your electronics and coding projects with the user friendly, open source Arduino Yún
  • Use with Arduino shields to enhance your project
  • 20 Digital I/O Pins easily control many components from RGB LEDs to Servos, screens and more

Product overview

• Start your electronics and coding projects with the user friendly, open source Arduino Yún
• Use with Arduino shields to enhance your project
• 20 Digital I/O Pins easily control many components from RGB LEDs to Servos, screens and more
• Allows Arduino and Linux to cross-communicate
• Built in Wireless and Ethernet
• Atheros AR9331 Linux Processor
• Using Arduino has never been easier, with thousands of tops, tricks and guides readily available online

Reasons to pick the Arduino Yún
The Arduino Yún, based on one of the most commonly used Open-Source Arduino boards. Start any electronics or coding projects readily available online in the huge Maker community, or design a project yourself.

Pre-installed is a version of Linux called OpenWrt-Yun, command line, packages and other major features can be used, it is best to save files/code for the Linux onto a Micro SD card. The Bridge library facilitates communication between the two processors, giving Arduino sketches the ability to run shell scripts, communicate with network interfaces, and receive information from the AR9331 processor.

The Arduino Yún gives you a large amount of I/O to work with, a quick reset button, and machine screw holes to mount the board however you please. Utilising the ATmega32u4 Microcontroller, the Arduino Yún has enough power and memory to store and run a lot of complex code.
The as well as being able to use shields, it already has Wi-Fi and Ethernet already built into the main board, preparing you immediately for all your networking requirements in any projects to come.

Connections and Expansion
The Arduino Yún has a Micro SD socket, which is great for storing crash logs if you’re away and something goes wrong, it will let you know when you’re ready. You can use the Micro SD card to host your own micro server and to upload relevant files and code to interact with the Linux .

This board has 20 Digital I/O pins allowing you to individually control a large amount of components. Each digital I/O pin can control a limb for a walking talking robot, control hundreds of RGB LEDs, or build your own keypad controlled electronic door lock, and so much more. It will be difficult to push this board to its limits. The Arduino Yún also has 12 Analogue inputs, meaning a large amount of sensors can be added to this board, you can also use Shields to enhance your builds.

Arduino shields come in many shapes and sizes, from providing solder-able break-out boards, a 1.8" TFT screen with micro SD slot and joystick, to a servo and motor control board. A great range of accessories are called Breakouts, tiny shields that link together just as easy, usually providing more specific uses. Shields and Breakouts allow you to more easily manage a lot of components in any project, you can view our range of shields and breakouts by clicking here.

What will you make?
With the ever expanding range of tutorial guides available, you can start by telling a single LED to flash, or control a stepper motor’s speed and direction. Using coding languages called C/C++, these skills easily translate to most general software languages, and so with this you’ll be learning a lot more than electronics.

You can, for instance, have a moisture sensor in your favourite plants pot, pairing this with the built in WiFi/Ethernet module, send yourself an email letting you know your plant requires watering.

Ease of Use
Arduino is fantastic for all ages, whether you have previous experience or not, from fun to functional. There are many tutorials will tell you exactly what you will need, even what pins to connect your components into, giving you a step by step, start to finish.

Using the Arduino IDE Software, it will allow you to very easily update your Arduino board with the code you’ve prepared, making the transfer seamless, it will even let you know whether your code makes sense and will work before you even upload it.

Start by;
making an LED Blink,
then going onto applying sensors and viewing the readings online,
or even use your phone to control your Arduino.

Arduino IDE software is needed to program an Arduino, it’s not in the box. Download from here: http://www.arduino.cc/en/Main/Software
Works on Mac, Windows and Linux based computers including Raspberry Pi's Rasbian software

Arduino's site.


Micro Controller ATmega32u4
CPU Clock Speed 16 MHz
Operating Voltage 3.3 V
Input Voltage 5 V
Digital IO/PWM 20/7
Analogue In 12
ICSP 1x6
Programming interface USB
USB Serial Controller USB-Micro
Flash Memory 32 KB-(4 KB Occupied)
Board Version (if applicable) N/A
Special Features Linux OpenWrt Linino OS
Linux Atheros AR9331 Microprocessor
Microcontroller Reset Button
Linux Reset Button
Wi-Fi Reset Button
PoE compatible 802.3af
Connectivity USB-A Host
Ethernet IEEE 802.3 10/100Mbit/s
Wi-Fi IEEE 802.11b/g/n
Micro SD Socket
Dimensions 73 mm x 53 mm