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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工具鏈
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61
之前還有先驅 Tessel 1（第一代），能夠原生執行 JavaScript 程式的早期
裝置之一，雖然起初認為這種做法很不錯，但因為缺乏與 Node.js 程式庫
生態系統的相容性，被視為一大缺陷。若想深入檢視這種做法的優缺點，
瞭解 Tessel 1 的軟體架構，請看這份文件（
https://github.com/tessel/t1-
contribution-guide
），內容相當詳細。
工具鏈
選擇微控制器時，其中一項重大考量便是工具鏈，佔有極為重要的一環，影響你開發專
案原型的速度。因為 Tessel 2 以 JavaScript 為基礎，其工具鏈提供了非常便利好用的開
發環境，讓我們能自由操縱嵌入式的網際網路功能。
讓我們先來看看為什麼 Tessel 的開發工作流程如此吸引人。第一，Tessel 擁有命令列介
面（Command-Line Interface, CLI），幫助開發人員管理裝置，能夠迅速地燒錄程式，也
能輕鬆設定網路組態、以及更新韌體。
若你建構的專案包含了好幾個硬體裝置，或是想要大量生產以 Tessel 為核心的產品，所
需花費立即變成重要考量項目。Tessel 計畫的最終願景是打造出一套工具，幫助使用者
在系統規模變大時，能夠把 JavaScript 換掉，換成 Rust 或 C。此外，也應該能夠在專案
原型變成最終產品之前，抽取出真正所需的硬體模組，降低費用。關於上述開發流程，
有份早期草稿文件值得一看（
https://github.com/technicalmachine/fractal-docs ...
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