建設(shè)一個(gè)Arduino無(wú)線網(wǎng)關(guān)

　　建設(shè)一個(gè)Arduino無(wú)線網(wǎng)關(guān)

　　Arduino是一個(gè)開(kāi)源電子原型平臺(tái)，專(zhuān)門(mén)優(yōu)化用于接收來(lái)自傳感器的輸入。這使得它成為開(kāi)發(fā)無(wú)線網(wǎng)關(guān)的極好平臺(tái)。通過(guò)以太網(wǎng)連接，網(wǎng)關(guān)可用于將傳感器和執(zhí)行器連接到因特網(wǎng)上，用于智能手機(jī)和平板電腦上?？梢詾檫@些平臺(tái)開(kāi)發(fā)應(yīng)用程序，然后利用來(lái)自網(wǎng)絡(luò)的數(shù)據(jù)，遠(yuǎn)程控制來(lái)自世界任何地方的執(zhí)行器。

　　廣泛的開(kāi)放源碼軟件提供了建設(shè)項(xiàng)目的寶貴資源。它是基于靈活的，易于使用的硬件和軟件為設(shè)計(jì)師，業(yè)余愛(ài)好者，和任何人在創(chuàng)造互動(dòng)的環(huán)境感興趣。

　　有一個(gè)廣泛的Arduino板可用，使用Arduino編程語(yǔ)言。這是基于布線，具有作為C++的語(yǔ)法和庫(kù)，簡(jiǎn)化和改進(jìn)。要使語(yǔ)言簡(jiǎn)單易用，有Arduino開(kāi)發(fā)環(huán)境，它是基于開(kāi)源的java IDE的基礎(chǔ)處理。發(fā)展可以在PC或Mac和Windows下，主機(jī)Mac OSX或Linux，或在董事會(huì)本身。網(wǎng)關(guān)軟件可以使用Arduino的編程語(yǔ)言和開(kāi)發(fā)工具的Linux。

　　The Arduino Nano board is a small， complete， and breadboard-friendly board based on the ATmega328 processor for the Arduino Nano 3.0 or the ATmega168 for the Arduino Nano 2.x family. It lacks only a DC power jack， and works with a Mini-B USB cable instead of a standard one. The Nano was designed and is currently being produced by Gravitech. The 16 MHz processor runs from a recommended input voltage of 7-12 V and has fourteen digital I/O pins with 40 mA of DC current per pin， which can be used to power a wireless module.

　　There is 16 KB of Flash in the ATmega168 version or 32 KB in the ATmega328 of which 2 KB used by the bootloader. Similarly， there is 1 KB of SRAM and 512 bytes of EEPROM with the ATmega168 or 2 KB of SRAM and 1 KB of EEPROM for the ATmega328.

　　The value of the Arduino boards lies in the range of open source software that has been developed by hobbyists， and also the flexibility of the hardware. Manufacturers provide the circuit layouts， and it is easy to build an add-on card， or shield， to the wireless functions. A wireless shield can be made or bought to add a wireless link to the design.