August 2017
Intermediate to advanced
272 pages
5h 32m
Chinese
Content preview from Node.js物聯網裝置開發
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第十二章 使用 Node.js 建構機器人
距離感測器
若要驅動機器人移動，其中一件重要的任務是偵測障礙物。由社群貢獻的模組
SEN10737p（
https://tessel.io/modules#tessel-sen10737p
）與HCSR04（
https://tessel.io/
modules#proximity-hcsr04
），都是能夠測量距離的解決方案，即插即用，相當不錯。
可變電阻
若想模擬從感測器而來的類比數值，此時可變電阻（電位器）便派得上用場。目前
並沒有內含可變電阻與 ADC 的 Tessel 模組，但我們可自行打造，並不困難。
傳統機器人需要移動或根據環境做出反應時，便需要運用上述模組，但讀者可發揮想像
力，突破界限：如果機器人能夠因應某件事情而進行移動，那會怎麼樣呢？或許可以根
據聲音或溫暖程度來反應，如同動物的行為。或者根據從網路而來的資訊做出反應呢？
例如 Twitter 推文。或者是台簡單的資料收集機器人，提供輸入給線上的程式，如動作
偵測機器，當發現有東西移動時便發郵件通知你。任何機器人專案，若加上網路連線能
力，都可獲得強大的輸入來源與輸出去處。
底下舉幾個例子：
• 水滾通知（
https://www.hackster.io/ifoundthemeaningoflife/hot-enough-text-93575e
）： 當
你爐子上燒的開水滾了，就透過 Twilio 發送文字通知訊息給你。
• 畏首畏尾機器人（
https://www.hackster.io/ifoundthemeaningoflife/flinching-r ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.