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2023-04-02 09:02:12 +00:00
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2023-04-02 08:31:07 +00:00
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< h1 class = "text-3xl text-center font-bold leading-normal text-gray-900 mt-0 mb-3" > 海外からいろいろ届いたよ< / h1 >
< div class = "text-center" > < i class = "fa-regular fa-clock" > < / i > 2022年7月26日< / div >
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< a href = "/tags/RP2040" class = "inline-block bg-gray-200 rounded-full px-3 py-1 text-sm font-medium text-gray-700 m-0.5" > #RP2040< / a >
< a href = "/tags/Pico" class = "inline-block bg-gray-200 rounded-full px-3 py-1 text-sm font-medium text-gray-700 m-0.5" > #Pico< / a >
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< p > ミミィ< / p >
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ちょっとRP2040マイクロコントローラユニット (MCU) を色々買ってみたワ！< br >
RP2040 はラズベリーパイ財団が開発したマイクロコントローラで、Raspberry Pi Pico に搭載されているものヨ！
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< p > マイクロコントローラとは、CPU(Central Processing Unit： １ < a href = "https://www.epson.jp/prod/semicon/products/micro_controller/about_mcu1.htm" target = "_new" title = "EPSON" > マイクロコントローラ（ ） ？ < span style = "color: gray; font-size: smaller;" > < i class = "fa-solid fa-arrow-up-right-from-square" > < / i > < / span > < / a > < / p >
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< th > No< / th >
< th > MCU< / th >
< th > フラッシュ< / th >
< th > ピン数< / th >
< th > 外寸< sup > 1< / sup > < / th >
< th > USB< / th >
< th > 価格< / th >
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< td > 1< / td >
< td > < a href = "https://www.raspberrypi.com/documentation/microcontrollers/raspberry-pi-pico.html" target = "_new" title = "Raspberry Pi Foundation" > Raspberry Pi Pico < span style = "color: gray; font-size: smaller;" > < i class = "fa-solid fa-arrow-up-right-from-square" > < / i > < / span > < / a > < / td >
< td > 2MB< / td >
< td > 20x2+3< / td >
< td > 51× < / td >
< td > micro< / td >
< td > 527円< sup > 2< / sup > < / td >
< / tr >
< tr >
< td > 2< / td >
< td > Raspberry Pi Pico W< / td >
< td > 2MB< / td >
< td > 20x2+3< / td >
< td > 51× < / td >
< td > micro< / td >
< td > 810円< sup > 2< / sup > < / td >
< / tr >
< tr >
< td > 3< / td >
< td > < a href = "https://www.waveshare.com/rp2040-zero.htm" target = "_new" title = "WAVESHSRE" > Waveshare RP2040-Zero < span style = "color: gray; font-size: smaller;" > < i class = "fa-solid fa-arrow-up-right-from-square" > < / i > < / span > < / a > < / td >
< td > 2MB< / td >
< td > 9x2+5< / td >
< td > 23.5x18mm< / td >
< td > Type-C< / td >
< td > 517円< sup > 3< / sup > < / td >
< / tr >
< tr >
< td > 4< / td >
< td > < a href = "https://shop.pimoroni.com/products/tiny-2040?variant=39560012234835" target = "_new" title = "海賊ロボ忍者さる" > PIMORONI Tiny 2040 < span style = "color: gray; font-size: smaller;" > < i class = "fa-solid fa-arrow-up-right-from-square" > < / i > < / span > < / a > < / td >
< td > 8MB< sup > 4< / sup > < / td >
< td > 8x2+3< / td >
< td > 21x18mm< / td >
< td > Type-C< / td >
< td > 1,134円< sup > 2< / sup > < / td >
< / tr >
< tr >
< td > 5< / td >
< td > RP2040 Black Board New Type< / td >
< td > 4MB< sup > 5< / sup > < / td >
< td > 20x2+4< / td >
< td > 53x23mm< / td >
< td > Type-C< / td >
< td > 405円< sup > 3< / sup > < / td >
< / tr >
< / tbody >
< / table >
< p > < small id = "1" > 1. 基板部のみの大きさ< / small > < br >
< small id = "2" > 2. PIMORONIの日本円表示価格 (送料別 - 小物なので800円くらい)< / small > < br >
< small id = "3" > 3. AliExpressの価格 (送料込・当方購入時の最低価格)< / small > < br >
< small id = "4" > 4. 2MB版もある< / small > < br >
< small id = "5" > 5. 16MB版もある (700円くらい) < / small > < / p >
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< p > タマちー< / p >
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1,2 はオリジナル、4 はイギリスの有名ベンダーの製品、3,5 は中華製なの・・・
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中華製品は基盤の仕上げとか動作のクセとか、些細なところで大きなストレスを与えてくるのよネ！
本質と違うところで苦労したくなければ中華は避けるべきヨ！
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ヘンなモジュールで安く遊びたい変態さんには中華製超オススメ・・・
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アンタ・・・
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< div class = "box_stripe" > < p >
ただ、オリジナルの Pico に全く問題がないのかというとそうでもなく、例えばリセットボタンがない、基盤の上面にピン番号が印刷されていない、USB 端子形状が micro USB であるなど、使い勝手の悪い部分があります。まあこの辺りは Raspberry Pi コンピュータも同様なので、そういう思想なのでしょう。< br >
そういうわけで、現在当方では小さいサイズに Tiny 2040 、普通サイズに RP2040 Black Board New Type を使用中。どちらも、リセットボタン、ピン番号のシルク印刷、USB Type-C、大容量のフラッシュメモリ、フルカラーLED搭載。加えて後者は送込み400円のお陰で、やらかしてしまっても怖くないのがイイ。
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2023-04-02 09:02:12 +00:00
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