Arduino系統(tǒng)網(wǎng)絡(luò)選項(xiàng)

　　加入有線或無線網(wǎng)絡(luò)功能的Arduino開源硬件/軟件平臺(tái)是簡單的，廉價(jià)的，并打開了另一個(gè)世界的商業(yè)和DIY開發(fā)者的應(yīng)用（圖1）。本文介紹網(wǎng)絡(luò)Arduino系統(tǒng)，我們將探討如何添加一個(gè)以太網(wǎng)，Wi-Fi，或802.15接口的基于Arduino的設(shè)計(jì)。（注：讀者熟悉Arduino可以參照高新區(qū)第“Arduino開源平臺(tái)釋放了創(chuàng)造力。”）

　　Figure 1： The Arduino module controlling the RobotShop Rover receives programming and commands from a host PC using its integrated USB connection. An XBee 2.4 GHz 802.15 transceiver shield can be added for wireless remote control and sensing.

　　Born to network

　　In truth， virtually every Arduino device has some sort of communication capability. At its most basic level， a board must provide some means for its PC-based development system to upload application software and to exchange debug/trace commands. Many Arduino boards （such as the Uno and the Mega2560 have an integrated USB port that serves as both a host communication link and as a low-power power supply. Some specialized boards forego the luxury of a USB connection and fall back on the Atmel ATmega AVR processor’s serial communication capabilities to provide an RS-232 （or equivalent） link that can be read by nearly any device with a serial port.