Arduino Yún Rev 2

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Arduino Yún Rev 2

Manuf (OEM/ODM): SeeedStudio

(Est.) release date: August 2018
(Est.) initial retail price (in USD): $57
UPC: 7630049200029 (UPC DB, On eBay)
Country of manuf.: China

Amazon image

B07FRZ9QDB (Flag of the United States.svg, On Amazon, On CCC)
On Newegg

Type: wireless embedded board

Power: 5 VDC, 2 A
Connector type: USB 2.0 (Female Micro-B)

CPU1: Atheros AR9331 (400 MHz)
CPU2: Atmel ATmega32U4 (16 MHz)
FLA1: 16 MiB16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br /> (Winbond W25Q128JVSQ)
FLA2: 32 KiB 0.0313 MiB <br />32,768 B <br />256 Kib <br />0.25 Mib <br />3.051758e-5 GiB <br /> (Atmel ATmega32U4)
RAM1: 64 MiB67,108,864 B <br />524,288 Kib <br />65,536 KiB <br />512 Mib <br />0.0625 GiB <br /> (Winbond W9751G6KB-25)
RAM2: 2.5 KiB 0.00244 MiB <br />2,560 B <br />20 Kib <br />0.0195 Mib <br />2.384186e-6 GiB <br /> (Atmel ATmega32U4)

Expansion IFs: USB 2.0
USB ports: 1

WI1 chip1: Atheros AR9331
WI1 802dot11 protocols: bgn
WI1 MIMO config: 1x1:1
WI1 antenna connector: U.FL

ETH chip1: Atheros AR9331
LAN speed: 100M
LAN ports: 1


Additional chips
USB Hub Controller and Card Reader;Alcor Micro;AU6351;;1;
2-Bit Bidirectional Voltage-Level Translator;TI;TXS0102;;3;
500mA Fixed Current Switch;Microchip;MIC2005;;1;
1.5MHz 800mA Synchronous Step-Down Regulator Dropout;Techcode Semi;TD680;;1;

Stock bootloader: U-Boot

Stock FW OS: Linux 4.9.91 LEDEYun 17.11

Flags: MicroSD Card slot

Default SSID: Arduino Yún-XXXXXXXXXXXX
Default IP address:
the IP is used by 2 additional devices
of which 0 are Arduino devices
Default login user: blank
Default login password: arduino

802dot11 OUI: A8:40:41 (1 E, 1 W)
Ethernet OUI: A8:40:41 (1 E, 1 W)

For a list of all currently documented Atheros (QCA) chipsets with specifications, see Atheros.
For a list of all currently documented Atmel chipsets with specifications, see Atmel.

Wireless IoT Board

Product page


  • CPU: Atheros AR9331 @400MHz (MIPS 24K)
  • MCU: Atmel ATmega32U4 @16MHz
  • Memory: 64MB (DDR2) SDRAM @400MHz (Winbond W9751G6KB-25)
  • Onboard Storage: 16MB (SPI NOR) Flash, MicroSD card slot
  • Ports: 1x FE LAN, 1x USB 2.0 ports