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Arduino Yun Microcontroller

by Arduino

RRP: £55.76
Price: £50.76
You Save: £5.00 (9%)
Only 13 left in stock.
Dispatched from and sold by The Pi Hut.
8 new from £50.76
  • Power of Arduino and Linux in one board
  • Has onboard WiFi, Ethernet and USB Host
  • Simple connection to the Internet through Bridge
  • Access thousands of APIs through Tempboo
  • Fully Shield compatible with the Arduino Uno R3
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Frequently Bought Together

Arduino Yun Microcontroller + Arduino YUN Case Enclosure Transparent Clear Computer Box by SB Components + 65 Pcs Assorted Length Multicolored Flexible Solderless Breadboard Jumper Wires
Price For All Three: £58.20

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Product Information

Technical Details
BrandArduino
Item Weight41 g
Product Dimensions10.2 x 7.6 x 1.3 cm
Item model numberA000008
Processor Brandnone
Processor Speed400 MHz
RAM Size64 MB
Computer Memory TypeDDR2 SDRAM
Graphics Card Descriptionn/a
Graphics RAM TypeEEPROM
Operating SystemLinux
  
Additional Information
ASINB00F6YJK3S
Best Sellers Rank 11,158 in Computers & Accessories (See top 100)
Shipping Weight41 g
Date First Available1 Oct 2013
  
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Product Description

Product Description

The Arduino Yun is a microcontroller board based on the ATmega32u4 (datasheet) 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 16 MHz crystal oscillator, a micro USB connection, an ICSP header, and a 3 reset buttons.The Yun 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, you can write your own shell and python scripts for robust interactions. The Yun is similar to the Leonardo in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Yun to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.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 USB host, network interfaces and SD card are not connected to the 32U4, but the AR9331, and the Bridge library also enables the Arduino to interface with those peripherals.

Product Description

The Arduino Yún is a microcontroller board based on the ATmega32u4 (datasheet), the Atheros AR9331 and built in WiFi and Ethernet. 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 16 MHz 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, you can write your own shell and python scripts for robust interactions. The Yún is similar to the Leonardo in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Yún to appear to a connected computer as a mou

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7 of 7 people found the following review helpful By Mr. P. HAIGH TOP 1000 REVIEWERVINE VOICE on 26 Feb 2014
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If you've a any more than a passing interest in building Internet of Things devices then this is the Arduino for you. In this ridiculously small package you have two distinct modules: there is a SoC running a version of Linux - it drives the on-board Wifi, wired networking as well as a USB hub; there is also an Arduino with the standard shield outputs. And there is a bridge component which joins the two halves together to make it greater than the whole.

In short you can program the Linux half of the Yun in any language it supports. So far I've stuck to shell scripts because that's all I've needed. But you can run python amongst other things. You can separately program the Arduino in the normal way, over USB. However you can also re-program it via your network - using either the WiFi or wired network connection.

The killer feature though is the bridge library. Use this in your Arduino code and you can read and write the Linux file system as well as control the hardware you choose to connect. This makes it easy to build a device that uses information or state from anywhere on the web to drive the electronics you connect to the Arduino. It is also possible to expose REST services over the network so that external servers can hit the Yun's Arduino data pins directly.

Make no mistake, this is a phenomenal combination of hardware and software at an insanely low price.
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By peter sloan on 17 May 2014
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The arduino yun is a fantastic piece of kit if you spend a bit of time learning the code and getting connected i am still learning
but so far its been a blast.
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By Anthony on 12 May 2014
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This arrived within days. Its pretty neat too as it has a linux computer on board. It runs Python 2.7 which currently has more libraries than Python 3. So all round, this was a good purchase!
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Most Helpful Customer Reviews on Amazon.com (beta)

Amazon.com: 28 reviews
25 of 25 people found the following review helpful
Great but the board design makes shields useless... 24 Sep 2013
By xMishka - Published on Amazon.com
This board is a great for web connected or networked projects but it has a serious design flaw. 99% of current shields cannot be used because of how high the RJ45 connector and host USB ports sit. They should have used a low profile RJ45 jack and mounted the USB port flat or at least raised the I/O pin headers. Very annoying. Hopefully this will be fixed in future versions. I am planning on modifying my Yun so that the headers sit higher allowing existing shields to fit. The Ardunio IDE 1.5.4 (Beta) works well and supports compiling and updating the board over the network. It also has some great API's and new features that allow it to communicate easily with web application or anything you can access on the internet/local network.
11 of 11 people found the following review helpful
Great piece of hardware 16 Nov 2013
By Amazon Customer - Published on Amazon.com
Verified Purchase
I should note that I don't use shields so the change in configuration from an Uno doesn't impact me.

Personally I love this thing. I've been using it on a robot and being able to program the Arduino without connecting any cables is fantastic.

Having the Linux system so closely tied with the microcontroller exponentially increases what you can do with this board.

For instance, rather than having the microcontroller handle all of the logic for my bot, it now only collects info from its sensors and relays commands to the motors and servo. I have the intelligence and control managed by a Python script running on the Linux part of the board. In addition to reprograming it from my laptop I can interact directly with the application while it's running and I don't need a cable attached to it.

I also have the Linux system running a hacked together web app. It allows me to select a sketch from the Yun's SD card and have it loaded into the microcontroller. It's really handy when I want to change between different functions or sensor sets on the bot and since it's a web app I can use it from my phone, tablet, laptop or anything else with a web browser on the WLAN.

If you're looking for something closer to a general purpose computer the Raspberry Pi might be a better option for you than the Yun. The Pi is geared toward being a very low end computer that has some IO ports while the Yun is geared toward adding a basic OS and network/USB communication to a microcontroller.

The Pi is also 3.3v where the Yun is 5v. Most of my hardware is 5v and I like not having to worry about logic level conversion, etc. when using the Yun.
9 of 9 people found the following review helpful
The Same, But Better (Mostly) 15 Nov 2013
By Patrick - Published on Amazon.com
I'm very happy with this new Arduino. I have quite a bit of experience with the more traditional Arduinos and aside from a few minor things this works exactly the same.

Things that are better:
* Under the metal RF shield there is a full Linux PC, this is good because it can do all the heavy lifting for network stuff.
* Instead of a serial connection you can get "serial" over the network, so after your project is finished you can very easily look at the debug output, fix the issue, and re-flash the Arduino all without having to dismantle anything.

Things that are worse:
* The Ethernet and host USB are too tall which means that most shields will not fit directly on to the Yun. You'll need an additional set of headers to act as spacers: SparkFun Arduino Stackable Header Kit
5 of 5 people found the following review helpful
Awesome way to bridge Arduino and the Internet - But... 18 Feb 2014
By Bruce Jones - Published on Amazon.com
If you want to connect anything you control or monitor with an Arduino to the Internet, this is a really great piece of hardware to do just that. Setting up a web server on an Arduino used to be very painful and the result wasn't too useful. With the Yun you've got a real Linux system onboard with a great little http server. You can even have PHP, Python and a host of other Linux software - good stuff.

My biggest problem with the board is the lack of memory on the Arduino side. It only has 32K of which 4K is consumed by the bootloader. Why couldn't they have followed the example of the Mega and gone with 256K? It's not like memory is that expensive these days. And I think it's obvious that people will want to use this for complex tasks. That 32K is quickly eaten up by user sketches, especially if you're doing any work with strings. I ended up having to store the strings on the SD card - which is only accessible from the Linux side - and sending tokenized information out from the Arduino. All of that and I was still tight on memory.

Maybe they'll release a Yun Mega.
6 of 7 people found the following review helpful
Web connected = awesome, with some caveats. 16 Dec 2013
By Maine_Guy - Published on Amazon.com
My initiation into the YUN was a bit rocky. One thing that is not obvious, the output is slightly different from the UNO.

Specifically:

Digital pins 0 and 1 are used to connect to the LINUX chip, making these two output pin unusable. Not a biggie, but something to be aware of.

Also, Serial: 0 (RX) and 1 (TX) are not in the same place as the UNO. I fried my old RTC clock module thanks to this, not realizing these I/O differences between boards. Again, not too big a deal if you're aware of the difference. The YUN can grab time from the net, so no clock module is needed regardless.

So, after these teething issues in transitioning from UNO to YUN, the rest went relatively smoothly. I have it communicating to a router at 50' or so. Fun little toy.

My LCD module fits fine with a screw shield between.
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