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                # **通用I/O** Android Things提供了外設I/O API,使用行業標準的協議和接口和傳感器和執行器通信; **通用輸入/輸出(General Purpose Input/Output):** 簡單的傳感器使用這個API。如運動探測器、距離探測器,和電平開關使用一個二進制值-高或者低來報告它們的狀態; **脈沖寬度調試(Pulse Width Modulation):** 伺服電機,直流電機,和需要成比例信號的燈使用這個API,來提供細粒度的輸出控制; **串行通信(I2C/SPI/UART):** 使用這個API,在連接在同一根總線上的兩個或者更多的設備之間傳輸大負載的數據。下面的表格列出了每個支持串口協議的基本屬性: | 協議 | 傳輸類型 | 電線 | 外圍設備 | 傳輸速度 | | --- | --- | --- | --- | --- | | I2C | 同步 | 2 | 高達127 | 低 | | SPI | 同步 | 4+ | 無限制 | 高 | | UART | 異步 | 2或者4 | 1 | 中 | * * * * *1.拋棄各種找元器件的煩惱,來“1024工場”旗艦店,一次性買到你所想要的:樹莓派套裝—專為Android Things打造。* ![樹莓派套裝](http://img.blog.csdn.net/20170731000628095?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcDEwNjc4Njg2MA==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast) *電腦用戶,點擊如下鏈接進入淘寶寶貝頁面:* <a href="https://item.taobao.com/item.htm?&id=549263158263">https://item.taobao.com/item.htm?&id=549263158263</a> *手機用戶,打開淘寶客戶端掃描二維碼:* ![寶貝二維碼](http://img.blog.csdn.net/20170731001203829?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcDEwNjc4Njg2MA==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast) *2.完整和持續更新的《使用Android打開物聯網開發大門——Andoid Thigns開發》文檔,歡迎大家閱讀!* [http://www.hmoore.net/workshop1024/android_things_develop/360773](http://www.hmoore.net/workshop1024/android_things_develop/360773) ![這里寫圖片描述](http://img.blog.csdn.net/20170729191051052?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcDEwNjc4Njg2MA==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast) *3.新技術,新未來!歡迎大家關注“1024工場”微信服務號,時刻關注我們的最新的技術訊息。(甭客氣!盡情的掃描或者長按!)* ![服務號](http://img.blog.csdn.net/20170411145712154?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcDEwNjc4Njg2MA==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast) *4.加入“Android Things開發”QQ討論群,一起學習一起Hi。(甭客氣!盡情的掃描或者長按!)* ![qq群](http://img.blog.csdn.net/20170411145816560?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcDEwNjc4Njg2MA==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast)
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