49 Euros Arduino Yún Rev.2 Unveiled with a Lower Profile, USB and Power Improvements

Orange Pi Development Boards

Arduino Yún board launched in 2013 was the first official Arduino combining Arduino  and Linux thanks to respectively an  Atmel ATMega32u4 microcontroller, and Atheros AR9331 MIPS WiFi SoC running Linino, a fork of OpenWrt maintained by Arduino.

The company has now launched an upgraded version – simply called Arduino Yún Rev.2 – in order to to improve security, support, and open-sourceness of the board.

Arduino Yun Rev.2 key specifications have actually not changed:

  • MCU – Microchip ATMega32U4 @ 16 MHz (as used in Leonardo board) with 2.5KB SRAM, 32KB flash, 1KB EEPROM
  • SoC – Atheros AR9331 MIPS-based Wi-Fi SoC coupled with 64MB external DDR2 and 16MB SPI NOR flash
  • Storage – microSD card slot
  • USB – micro USB connector + full USB 2.0 host port
  • Connectivity – Ethernet + Wi-Fi
  • I/Os
    • 20 digital input/output pins (including 7x PWM outputs)
    • 12x analog inputs

But the hardware design – this time development with Seeed Studio – brings  a better and, more robust power circuitry, a low profile Ethernet RJ45 jack to avoid potentially short circuits with shields, the USB port has been moved to horizontal position to save space, and the USB hub have been improved.

The software stack  has been updated to the latest OpenWrt version,  and SSL support has been implemented on the bridge Arduino / Linux bridge.

Arduino Yún Rev.2 is expected to start shipping on April 23 for 49 Euros plus shipping.

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AR9331 module looks like Domino Core:
https://store.gl-inet.com/products/domino-core-board