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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範例專案：移動車輛
|
201
// 手掌伺服馬達在腳位 10
var hand = new Hand(10);
// 加入目標
var goal = new Goal(arm, hand);
this.repl.inject({
hand: hand,
arm: arm,
goal: goal
});
});
試著動一動吧：
>> goal.prepare()
>> goal.grabObject()
>> goal.moveObject()
>> goal.releaseObject()
>> goal.grabObject()
>> goal.prepare()
這支機器爪子提供兩個軸的活動自由度，若擁有三個軸的自由度，那麼就需要更深入的
運動學，提供基礎，根據預先定義好的座標軸，計算出運動的軌跡與位置。若讀者想進
一步學習機器人學，請參看 tharp 套件（
https://www.npmjs.com/package/tharp
）。
範例專案：移動車輛
除了致動器，讓你的機器人能夠擷取感測器資料，也很重要。
以兩個可連續轉動的伺服馬達所打造的車形機器人，可運用現有的 Node/Tessel 程式庫
加以操控：一般用途可選擇 servo-car（
https://www.npmjs.com/package/servo-car
），若想
經由 WebSocket 操控，則可選用 RC-Sumobot（
https://github.com/Frijol/RC-Sumobot
）。
伺服馬達
var tessel = ...
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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.