Arduino Yún Manual

Guide to the Arduino Yún
The Arduino Yún is an Arduino board unlike any other. While programming it is very similar to
the Arduino Leonardo and uses the same processor, the Atmel ATmega32U4, it also has an
additional processor, an Atheros AR9331, running Linux and the OpenWrt wireless stack.
Programming the 32U4 via USB is identical to the
the Yún to connect to your WiFi network, you can program the 32U4 via WiFi as well.
To connect the Arduino Yún to your computer, you'll need a Micro-B USB cable. This USB
cable provides power and data to the board. When programming the Yún, you must choose
Arduino Yún from the Tools > Board menu in the Arduino IDE. The Yún is only supported
by Arduino IDE 1.5.4 and later.

Differences from the Arduino Leonardo
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Linino
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Python

External storage on the Yún
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Web services
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Resetting the processors (AR9331, WiFi, and 32U4)
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Serial re-enumeration on reset.
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No reset when you open the serial port.
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Installing Drivers for the Yún
OSX
o
Windows
o
Linux
o

Configuring the onboard WiFi

Programming the 32U4 over WiFi

Using the onboard Ethernet
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Communicating with Linino via Bridge

The Console

Process

Using Bridge to pass information between processors

Connecting to internet services with Temboo

Spacebrew

Install additional software on Linux

Next Steps
Differences from the Arduino Leonardo
Arduino Leonardo. Once you've configured