February 2015
Intermediate to advanced
200 pages
4h 48m
Japanese
Content preview from Bluetooth Low Energyをはじめよう
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.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.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.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.
046
Bluetooth Low Energyをはじめよう
コネクションの 確 立
セントラルが ペリフェラルとコネクションを開 始 するに は 、ペリフェラル が コネクション 可
能（connectable）モードでなくてはならない。検索と同 様に、複 数のモードと手 順によっ
て組織化され標準化された形で接続する相手先デバイスの選択をコントロールすることが
できる 。
コ ネ ク シ ョン 確 立 モ ード
下記のコネクション確立モードの違いは、ペリフェラルの使用するアドバタイズパケット
の種類の違い（これについては022ページの「アドバタイズとスキャン」に詳 述した）を反
映している。
• コ ネ ク シ ョン 不 可 モ ード（Non-connectable mode）
このモードにいるデバイスは、まったくアドバタイズパケットを送信しないか、あるいは
ADV_NONCONN_IND
または
ADV_SCAN_IND
ア ド バ タ イ ズ パ ケ ッ ト を 送 信 す る（ 表 2-1を
参照のこと）。どちらの場合でも、モードの名前からわかるようにデバイスはコネクション
不 可 であるため 、セントラルはコネクションを確 立 できない 。
• 有 向 コ ネ ク ション 可 能 モ ード（Directed connectable mode）
こ の モ ード に い る デ バ イ ス は 、
ADV_DIRECT_IND
ア ド バ タ イ ズ パ ケ ッ ト を 送 信 す る（ 表
2-1を参
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.