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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腳位抽象化
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63
即便 Tessel 以電池供電，你也能重新燒錄新的程式，只要已經過認證（使用指令
t2
provision
）並且連接到區域網路。
以底下指令，便可登入到 Tessel 2 的 Linux 系統：
$ t2 root
INFO Looking for your Tessel...
INFO Connected to hellotessel.
INFO Starting SSH Session on Tessel. Type "exit" at the prompt to end.
BusyBox v1.23.2 (2016-04-07 13:52:07 EDT) built-in shell (ash)
Tessel 2 / Built on OpenWrt
root@hellotessel:~#
然後，就能自由地探索 OpenWRT，還有，若需要檢查設置是否正常，取得 Tessel 2 的
系統管理權限，將會非常有幫助。關於其他可用的指令，請見
https://gist.github.com/
flaki/a1efdb438292dd8c56c3
。
另一道非常好用的指令，可把 Tessel 2 轉成 WiFi 存取點（access point）：
$ t2 ap -n SSID -p PASS
這麼一來，就可以使用一塊 Tessel 2 開發板，管理多個終端裝置。
腳位抽象化
Tessel 2 開發板以 Atmel SAMD21 提供輸出入腳位，這顆微控制器晶片擁有計時器、類
比轉數位轉換器、以及其他零零 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.