arduino-yun.md

5/17/2014 - 2:53 AM

book

usb: 通过串口工具可以直接通过USB数据线连接
网络: 连接到arduino的wifi热点, 进行配置, 默认的wifi没有加密, 所以手机连上后, 可以发现网关地址: 192.168.240.1, 所以, 得到设备管理ip, 可以同时连接有线网络, 有线与无线可以在不同网段.

Atmel ATmega32U4: 与Arduino Leonardo相同的处理器, 所以编程类似.
Atheros AR9331
SD, Ethernet, and USB-A connectors是物理连接在AR9331上面的.
The Yún's 32U4 functions in the same way as the Leonardo, except you cannot use Serial1. It is reserved for communication with the AR9331 processor.
The 32u4, WiFi, and AR9331 processors all have their own reset buttons.
没有专门的串口通信芯片.serial port is virtual -- it's a software routine,both on your operating system, and on the board itself.
Just as your computer creates an instance of the serial port driver when you plug in any Arduino, the 32u4 creates a serial instance whenever it runs its bootloader. The board is an instance of USB's Connected Device Class (CDC) driver.
This means that every time you reset the 32U4 processor, the USB serial connection will be broken and re-established.