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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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.
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する可能性も高いことだ。FCC や CEの認定には製品当たり1万ド ル も の 費 用 が 掛 か るこ
とも珍しくないため、比較的低ボリュームで製造される製品にはモジュールが魅力的なオプショ
ンとなる。
モ ジ ュ ー ル を 使 うもう 1つの利点は、RF 設 計 が 終 わ っ て い る こ と だ 。カ ス タ ム な RFハ ード ウ ェ
ア設計には、専門的な知識とツール、そしてテストが必要とされる。アンテナやRFフ ロ ント
エンドを製品に合わせて適切に設計することは簡単な仕事ではなく、また設計がまずいと
製品の到達範囲や効率性に影響する。モジュールメーカーは通常、適切に設計され、チュー
ニングされた RFフロントエンドとアンテナや共通コネクタを提供することによって、この問
題を解決している。製品にコネクタがあれば、外部アンテナを簡単に追加できるし、伝送
線路（無線機から、または無線機へエネルギーを伝送する金属パターン）のインピーダンスマッ
チングについて思い悩む必要もない。
もう 1つの利点として、一部のモジュール（たとえば、このセクションで後ほど説明す
るBluegigaモジュール や Lairdモジュール）には高レベル開発スクリプト言語が付
属しているため、開発期間が大幅に短縮でき、Nordic の nRF51822-EK 用のKeil
s uVision（083ペ ー ジ の「 nRF51822-EK（Nordic Semiconductors）」） や Te x a s
Instrumentsの CC2541MINI-DK 用の IAR（087ペ ー ジ の「 CC2541DK-MINI (Texas
Instruments)」）など、低レベルのプログラ
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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.