Modifications

{{ARDImage|Arduino-Yun-Pres10.jpg}}<small> Traduction: MCHobby.be</small>

{{ARDImage|Arduino-Yun-Pres10.jpg|480px}}<small> Traduction: MCHobby.be</small>

* '''Analog Inputs: A0 - A5, A6 - A11 (on digital pins 4, 6, 8, 9, 10, and 12)'''. The Yún has 12 analog inputs, labeled A0 through A11, all of which can also be used as digital i/o. Pins A0-A5 appear in the same locations as on the Uno; inputs A6-A11 are on digital i/o pins 4, 6, 8, 9, 10, and 12 respectively. Each analog input provide 10 bits of resolution (i.e. 1024 different values). By default the analog inputs measure from ground to 5 volts, though is it possible to change the upper end of their range using the AREF pin and the [http://arduino.cc/en/Reference/AnalogReference analogReference()] function.

* '''Analog Inputs: A0 - A5, A6 - A11 (on digital pins 4, 6, 8, 9, 10, and 12)'''. The Yún has 12 analog inputs, labeled A0 through A11, all of which can also be used as digital i/o. Pins A0-A5 appear in the same locations as on the Uno; inputs A6-A11 are on digital i/o pins 4, 6, 8, 9, 10, and 12 respectively. Each analog input provide 10 bits of resolution (i.e. 1024 different values). By default the analog inputs measure from ground to 5 volts, though is it possible to change the upper end of their range using the AREF pin and the [http://arduino.cc/en/Reference/AnalogReference analogReference()] function.

There are 3 reset buttons with different functions on the board:  

There are 3 reset buttons with different functions on the board:  

{{ARDImage|Arduino-Yun-Pres11.jpg}}<small> Traduction: MCHobby.be</small>

{{ARDImage|Arduino-Yun-Pres11.jpg|480px}}<small> Traduction: MCHobby.be</small>

* '''Yún RST''': Bring this line LOW to reset the AR9331 microprocessor. Resetting the AR9331 will cause the reboot of the linux system. All the data stored in RAM will be lost and all the programs that are running will be terminated.

* '''Yún RST''': Bring this line LOW to reset the AR9331 microprocessor. Resetting the AR9331 will cause the reboot of the linux system. All the data stored in RAM will be lost and all the programs that are running will be terminated.

* '''WLAN RST''': This button has a double feature. Primarly serves to restore the WiFi to the factory configuration. The factory configuration consist to put the WiFi of the Yún in access point mode (AP) and assign to it the default IP address that is 192.168.240.1, in this condition you can connect with your computer to the a WiFi network that appear with the SSID name "Arduino Yun-XXXXXXXXXXXX", where the twelve 'X' are the MAC address of your Yún. Once connected you can reach the web panel of the Yún with a browser at the 192.168.240.1 or "[http://arduino.local/ http://arduino.local]" address. Note that restoring the WiFi configuration will cause the reboot of the linux environment. To restore your WiFi configuration you have to press and hold the WLAN RST button for 5 seconds. When you press the button the WLAN blue LED will start to blink and will keep still blinking when you release the button after 5 seconds indicating that the WiFi restore procedure has been recorded. The second function of the WLAN RST button is to restore the linux image to the default factory image. To restore the linux environment you must press the button for 30 seconds. Note that restoring the factory image make you lose all the files saved and softwares installed on the on-board flash memory connected to the AR9331.  

* '''WLAN RST''': This button has a double feature. Primarly serves to restore the WiFi to the factory configuration. The factory configuration consist to put the WiFi of the Yún in access point mode (AP) and assign to it the default IP address that is 192.168.240.1, in this condition you can connect with your computer to the a WiFi network that appear with the SSID name "Arduino Yun-XXXXXXXXXXXX", where the twelve 'X' are the MAC address of your Yún. Once connected you can reach the web panel of the Yún with a browser at the 192.168.240.1 or "[http://arduino.local/ http://arduino.local]" address. Note that restoring the WiFi configuration will cause the reboot of the linux environment. To restore your WiFi configuration you have to press and hold the WLAN RST button for 5 seconds. When you press the button the WLAN blue LED will start to blink and will keep still blinking when you release the button after 5 seconds indicating that the WiFi restore procedure has been recorded. The second function of the WLAN RST button is to restore the linux image to the default factory image. To restore the linux environment you must press the button for 30 seconds. Note that restoring the factory image make you lose all the files saved and softwares installed on the on-board flash memory connected to the AR9331.  

See also the [http://arduino.cc/en/Hacking/PinMapping32u4 mapping between Arduino pins and ATmega32u4 ports].  

See also the [http://arduino.cc/en/Hacking/PinMapping32u4 mapping between Arduino pins and ATmega32u4 ports].

== Communication ==

== Communication ==