Arduino Yun - WiFi + Ethernet

Index: ARD-01859

Connection of Arduino and Linux allows to program and control the device wirelessly via WiFi network. Module based on ATmega32u4 chip, has 32 kB of flash memory, 2.5 kB of RAM, 20 digital inputs/outputs of which 7 can be used as PWM channels and 12 as analogue inputs and interfaces, including USB.

Arduino Yun - WiFi + Ethernet
€52.76 tax excl.
Discontinued product
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Manufacturer: Arduino


The sale of the product has been completed. Check otherdevices in this category.


Yun is a combination of Arduino Leonardo and AtherosAR9331controller with WiFisupport. The board contains an ATmega32u4 microcontroller equipped with 20 digital inputs/outputs, 7 of which can be used as PWM outputs (e.g. for controlling motors) and 12 as analogue inputs. The board is clocked with a 16 MHz clock signal, has 32 kB of Flash memory and 2.5 kB of SRAM memory.

Thanks to using AVR chip together with Bridge library available from Arduino IDE environment, Arduino Yun can easily, wirelessly, through WiFi network, program, configure or change and read output states. After connecting the power supply (5 V througha power supply unitwith micro USB connector), the module is visible on the PC as a WiFi network called Arduino Yun.

The original Arduino product is sold, Botland is anofficial distributor of this company.

Main features

Below we present some features that distinguish Arduino modules from other programmable tiles.

The nameDescription



Thanks to the installed bootloader, the appropriatemicroUSB cable andsoftware from the manufactureris sufficient to program the device.



Arduino Yun can be easily programmed, configured or changed and read output states wirelessly, via WiFi network.



This version has an Ethernet controller with RJ45 connector and a microSD memory card reader.



The layout of connectors enables installation of dedicatedArduino Shieldcovers.

Extracts .


20 digital inputs/outputs enable, among others, to control LEDs, relays and read button states.



The maximum current capacity of a single output is 40 mA.



7 PWM outputs allow e.g. for motor control and diode brightness adjustment.



The 12 inputs of the built-in 10-bit analogue-to-digital converter support, among others, sensors with analogue output.



The device supports popular communication interfaces, among others: UART, I2C and SPI and USB.
Special functions Some pins have special functions, a brief description of which is available in our guide.

The socket .


The board has a built-in USB controller, which is connected to a USB type A computer socket.



Atmega32u4 is clocked with 16 MHz signal, has 32 kB of Flash 1 kB EEPROM and 2.5 kB SRAM.

Power supply 5 V


You can usea5Vpower supply unitwith microUSB connector to power Arduino.

Power supply

USB port

You can power the board from your computer viathe microUSB cable,whilekeeping in mindthat the maximum current capacity of the USB port is 500 mA. Arduino has a system that protects the socket against short circuit and too high current flow.

The connector .


The module has ICSP outputs for connecting an externalAVR programmer.



The IOREF pin allows for direct access to the voltage with which the I/O outputs work.



The connected LED on pin 13 allows debugging of simple programs.


3,3 V

The built-in voltage regulator enables external devices to be supplied with 3.3 V with current consumption of up to 50 mA.


  • Power supply voltage: 5 V
  • AVR microcontroller: ATmega32u4
    • Maximum clock frequency: 16 MHz
    • SRAM: 2.5 kB
    • Flash memory: 32 kB (4 kB reserved for bootloader)
    • EEPROM memory: 1 kB
    • Ports I/O: 20
    • PWM outputs: 7
    • Number of analog inputs: 12 (A/C converter channels with 10 bits resolution)
    • Serial interfaces: UART, SPI, I2C
    • External interruptions
  • Linux processor: AtherosAR9331
    • Architecture: MIPS400 MHz
    • Power supply voltage: 3,3 V
    • Ethernet IEEE 802.3 10/100Mbit/s
    • IEEE 802.11b/g/n WiFi
    • RAM: 64 MB DDR2
    • Flash memory: 16 MB
  • USB socket Type-A 2.0
  • Micro-SD cardreader


Thanks to the ATmega32u4 middleware, programming of Arduino Yun is as easy as other modules in this family. Arduino IDEenvironmentcontains specially prepared Bridge library for Yun module called Arduino IDE.

Arduino Yun - wifi - moduł platforma

Block diagram of Arduino Yun module.

Arduino Yun - wifi - moduł platforma

We also offer ArduinoYun without PoE andArduinoYun Mini.

Arduino Tian vs Arduino Yun

In our offer there is also another board with WiFi and Ethernet controller - ArduinoTian.

FunctionArduino YunArduino Tian
Microcontroller 1 ATmega32u4 8-bit

SAMD21G18 32-bit

ARM Cortex-M0+

Microcontroller 2

Atheros AR9331


Atheros AR9342

MIPS 533 MHz

WiFi interface 802.11b/g/n 802.11 b/g/n 2.4 GHz dual-band
Ethernet interface

IEEE 802.3

10/100 Mbit/s

IEEE 802.3 1

10/100/1000 Mbit/s

Bluetooth interface None Bluetooth EDR / BLE 4.0
Card reader microSD None

UC - Microcontroller Atmega32U4
UC - Core 8-bit AVR
UC - Flash 32 kB
UC - RAM 2,5 kB
UC - Digital pins 20
UC - analog in 12
UC - freq 16 MHz
UC - Ethernet yes
UC - A/C 10-bit
UC - PWM 7
UC - WiFi yes
UC - USB microUSB
UC - microSD yes
Package width 0.001 cm
Package height 0.001 cm
Package depth 0.001 cm
Package weight 0.001 kg

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