la vera e prima fonera fa anche da modem e la mettevi AL POSTO del tuo attuale modem, quelle nuove sono delle pataccate
IntroductionThe Arduino Yún has the same footprint as an Arduino Uno but combines an ATmega32U4 microcontroller (the same as the Leonardo) and a Linux system based on the Atheros AR9331 chipset.
Linux OS specificationsThe Yún runs a version of the OpenWRT Linux distribution called Linino. The on-board 16MB flash memory that contains the Linux image has a full python installation and package manager you can use to install additional software.The AR9331 has 64 MB of DDR2 RAM available, providing the resources to perform complex tasks like running a web server or streaming video from a webcam.You can expand the storage memory by adding a micro-SD card or a USB pen drive. By including a directory named "arduino" at the root level of the storage device, it will be automatically recognized by the Yún.
Connection between the two processorsThe Yún's Bridge library enables communication between the two processors, connecting the hardware serial port of the AR9331 to Serial1 on the 32U4 (digital pins 0 & 1). Another post will describe the library in greater depth. The serial port of the AR9331 exposes the Linux console (aka, the command line interface, or CLI) for communication with the 32U4. The console is a means for the Linux kernel and other processes to output messages to the user and receive input from the user. File and system management tools are installed by default. It's also possible to install and run your own applications using Bridge.The ATmega32U4 can be programmed from the AR9331 by uploading a sketch through the Yún's WiFi interface. When connected to the same WiFi network as your computer, the board will appear under the "Port" menu of the Arduino IDE. The sketch will be transferred to the AR9331, and the Linux distribution will program the ATmega32U4 through the SPI bus, emulating an AVR ISP programmer.
The next post about the Yún will focus on the Bridge library, describing how it facilitates communication between the two processors. Stay tuned!
Power considerationThe Yún can be powered through the micro-USB connector, the Vin pin, or the optional Power Over Ethernet (POE) module. When powering the board though the Vin pin, you must supply a regulated 5VDC. There is no on-board voltage regulator for higher voltages.
Attenzione!QuotePower considerationThe Yún can be powered through the micro-USB connector, the Vin pin, or the optional Power Over Ethernet (POE) module. When powering the board though the Vin pin, you must supply a regulated 5VDC. There is no on-board voltage regulator for higher voltages.Non è possibile fornire alla YUN tensioni superiori a 5VDC. Non c'è il regolatore a bordo come sulla UNO, MEGA, DUE, Leonardo, ecc ecc.
Non potevno sprecarsi a mettere un regolatore? E io che ci volevo mettere un motorsield.