February 2015
Intermediate to advanced
200 pages
4h 48m
Japanese
Content preview from Bluetooth Low Energyをはじめよう
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098
Bluetooth Low Energyをはじめよう
Bluez
の
hcitool
と
gatttool
Linuxワ ーク ス テ ーションを 使 っ て い る 場 合 に は、
hcitool
と
gatttool
という、
Bluezの Bluetooth Stackに 含まれる2つ の 便 利なユーティリティを利 用して、コマンド
ライン から BLEデバイスとのインタラクションが可能だ。
専用の Linux ワークステーションが利用できない場合でも、Bluez は Raspberry
PiやBeagleBone Blackなどの 安 価 な Linuxデバイスで問題なく動作するため、
これらを非 常に便 利でポータブルな BLE デ バッグツー ルとして 使うことができる。
hcitool
は 、サ ポ ート さ れ て い る BLE 4.0 USBドングルを使って到達範囲内にある
BLEデ バイスをスキャンしたり、コネクションを 確 立したり、あるいは BLEデ バ イスをシミュレ ー
トするために使える。到達範囲内にあるBLEデ バ イ ス を ス キ ャ ン す る に は 、以 下 の コ マ ン
ド を 実 行 す れ ば よ い（ USBドングルが
hci0
として認識されていると仮定）。
sudo hcitool -i hci0 lescan
デバイスのアドレスがわかっていれば（それ以 前のスキャンコマンドで取 得できていれば）、
以 下 のコマンドを使ってその ペリフェラル
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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.
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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.