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激安コンピュータがアツい!あるいは最近作っているものの話
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Ryota Suzuki
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2014/02/23に開催されたMCC交流会2014のLTスライド
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ChatGPT and the Future of Work - Clark Boyd
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Getting into the tech field. what next
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Google's Just Not That Into You: Understanding Core Updates & Search Intent
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How to have difficult conversations
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激安コンピュータがアツい!あるいは最近作っているものの話
1.
激安コンピュータがアツい! あるいは最近作っている物の話 JA1TYE (http://t-techlab.net)
2.
激安コンピュータいいよね シングルボードコンピュータ(SBC)がブーム Raspberry Pi,BeagleBone/Boardシリーズ,Galileo… 安くなったのがブームの一因? 初代BeagleBoard(2008年)は1万円以上! Raspberry PiのModel
Aは3000円程度
3.
ちょっと違うんだなあ もっと安い コンピュータ!
4.
ちょっと違うんだなあ 誰がOSが動くと言った…?
5.
と,いうわけで 今日推したいのは激安マイコン LPC800シリーズ(NXP) トランジスタ技術2014年2月号の付録になりました マイコン(LPC810)と実験用基板が付録 ちなみに3月号も付録付きです
6.
そのマイコンの何がいいのさ? 速い! 32bitARMマイコン この領域は8bitマイコンの領域だった 最大30MHz動作 20MHz程度が最高のマイコンが多かった
7.
そのマイコンの何がいいのさ? 安い! 1個80円→75円! 8bitマイコンと同じくらいの値段か安い程度 開発環境も安い
メーカ提供の開発環境(サイズ制限付きで無料) 書き込み装置もお手軽
8.
だがしかし! マズい! 色々と足りない… A/Dコンバータがない(ソフトで出来るとはいえ…) メモリが足りない!!(特にプログラムメモリ:4KB) 複雑すぎ…
詰め込み過ぎて何が何だか…
9.
なんに使おうか ぶっちゃけ使い道ないんだよね 買っちゃったんだよね
10.
しょうがないので 安さと速さが取り柄 (マイコンにとっては) 重い処理でもさせてみるか 安いしたくさん載っけてみるか!
時代はマルチコア(?) 高校時代に作ったFM音源の新Ver. リアルタイム音声処理は結構たいへん 数百クロックの闘い(30MHz/32kHz)
11.
正直すまんかった 進捗ダメです! 外部インタフェースとの通信部分が間に合わず… 結局8個載せることにしました メモリは4080byte/4196byte使いました
12.
でも… 結構楽しい✌(‘ω’✌ )三✌(‘ω’)✌三( ✌‘ω’)✌ ARMマイコンが最近はお手軽です ライタ・開発環境不要のマイコンボードも(mbed) 割と安いし電池で動く小物が作れます というわけで皆さんマイコンもぜひ!
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