{"id":45260,"date":"2026-03-20T08:10:36","date_gmt":"2026-03-20T08:10:36","guid":{"rendered":"https:\/\/rjydisplay.com\/?p=45260"},"modified":"2026-07-09T05:48:41","modified_gmt":"2026-07-09T05:48:41","slug":"spi-displays-pros-cons-guide","status":"publish","type":"post","link":"https:\/\/rjydisplay.com\/ja\/spi-displays-pros-cons-guide\/","title":{"rendered":"\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u304a\u3051\u308bSPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e7\u3064\u306e\u91cd\u8981\u306a\u9577\u6240\u3068\u77ed\u6240"},"content":{"rendered":"

\u7d44\u307f\u8fbc\u307f\u30b7\u30b9\u30c6\u30e0\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u4e16\u754c\u306b\u304a\u3044\u3066 \u30ed\u30b8\u30c3\u30af\u3068\u30e6\u30fc\u30b6\u30fc\u9593\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u5168\u3066\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u30b0\u30e9\u30d5\u30a3\u30ab\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c\u5358\u7d14\u306a\u30ad\u30e3\u30e9\u30af\u30bfLCD\u304b\u3089\u9ad8\u89e3\u50cf\u5ea6TFT\u3078\u79fb\u884c\u3059\u308b\u4e2d\u3067\u3001\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u9078\u629e\u306f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u6210\u529f\u306e\u8981\u3068\u306a\u308a\u307e\u3059\u3002\u69d8\u3005\u306a\u9078\u629e\u80a2\u306e\u4e2d\u3067\u3001<\/strong>, SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4, \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u5de5\u696d\u7528HMI\u306b\u53d6\u308a\u7d44\u3080\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u958b\u767a\u8005\u3067\u3042\u308c\u3001.<\/p>\n\n\n\n

\u30ec\u30c8\u30ed\u30b2\u30fc\u30df\u30f3\u30b0\u30cf\u30f3\u30c9\u30d8\u30eb\u30c9\u3092\u5b8c\u6210\u3055\u305b\u3088\u3046\u3068\u3059\u308b\u30db\u30d3\u30a4\u30b9\u30c8\u3067\u3042\u308c\u3001 \u3053\u306e\u5305\u62ec\u7684\u30ac\u30a4\u30c9\u3067\u306f\u3001SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u3042\u3089\u3086\u308b\u6280\u8853\u7684\u5074\u9762\u3092\u63a2\u6c42\u3057\u307e\u3059\u3002<\/strong> 1. SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u6280\u8853\u7684\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u4fa1\u5024\u3092\u7406\u89e3\u3059\u308b\u306b\u306f\u3001\u307e\u305a\u300c\u30b7\u30ea\u30a2\u30eb\u30fb\u30da\u30ea\u30d5\u30a7\u30e9\u30eb\u30fb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u300d\u30d7\u30ed\u30c8\u30b3\u30eb\u305d\u306e\u3082\u306e\u3092\u7406\u89e3\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002SPI\u306f\u540c\u671f\u5f0f\u3001\u5168\u4e8c\u91cd\u30014\u7dda\u5f0f\u306e\u30b7\u30ea\u30a2\u30eb\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u3067\u3059\u3002\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u6587\u8108\u3067\u306f\u3001\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\uff08\u30de\u30b9\u30bf\u30fc\uff09\u304c\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u6c7a\u5b9a\u3057\u3001\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\uff08\u30b9\u30ec\u30fc\u30d6\uff09\u304c\u30d4\u30af\u30bb\u30eb\u30c7\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/strong>, SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u8ad6\u7406\u30d4\u30f3 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong>.<\/p>\n\n\n\n

\n\n\n\n
\"\"
<\/figcaption><\/figure>\n\n\n\n

\u6a19\u6e96\u7684\u306aSPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u3001\u901a\u5e38\u4ee5\u4e0b\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\uff1a<\/h2>\n\n\n\n

SCK\uff08\u30b7\u30ea\u30a2\u30eb\u30af\u30ed\u30c3\u30af\uff09\uff1a \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong>, MCU\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u307e\u3059\u3002\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u9ad8\u901fSPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u5834\u5408\u3001ESP32-S3\u306e\u3088\u3046\u306a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u306f\u6700\u592780MHz\u306b\u9054\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n

MOSI\uff08\u30de\u30b9\u30bf\u30fc\u51fa\u529b\u30fb\u30b9\u30ec\u30fc\u30d6\u5165\u529b\uff09\uff1a<\/h3>\n\n\n\n

\u5b9f\u969b\u306e\u753b\u50cf\u30c7\u30fc\u30bf\u3092\u4f1d\u9001\u3059\u308b\u30e9\u30a4\u30f3\u3067\u3059\u3002 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> MISO\uff08\u30de\u30b9\u30bf\u30fc\u5165\u529b\u30fb\u30b9\u30ec\u30fc\u30d6\u51fa\u529b\uff09\uff1a<\/p>\n\n\n\n

    \n
  1. \u30c7\u30fc\u30bf\u3092\u8aad\u307f\u623b\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\uff08\u4f8b\uff1a\u30c9\u30e9\u30a4\u30d0\u30c1\u30c3\u30d7\u306e\u8b58\u5225\u3084\u30bf\u30c3\u30c1\u5ea7\u6a19\u306e\u8aad\u307f\u53d6\u308a\uff09\u3002<\/strong> CS\uff08\u30c1\u30c3\u30d7\u30bb\u30ec\u30af\u30c8\uff09\uff1a \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong>, \u300c\u6709\u52b9\u5316\u300d\u30b9\u30a4\u30c3\u30c1\u3067\u3059\u3002\u8907\u6570\u306eSPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3084\u30bb\u30f3\u30b5\u30fc\u304c\u540c\u3058\u30d0\u30b9\u3092\u5171\u6709\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002 DC\/RS\uff08\u30c7\u30fc\u30bf\/\u30b3\u30de\u30f3\u30c9\uff09\uff1a<\/strong>.<\/li>\n\n\n\n
  2. \u53d7\u4fe1\u30d0\u30a4\u30c8\u304c\u8a2d\u5b9a\u30b3\u30de\u30f3\u30c9\u304b\u751f\u306e\u30d4\u30af\u30bb\u30eb\u30c7\u30fc\u30bf\u304b\u3092\u5207\u308a\u66ff\u3048\u308b\u3001\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306b\u3068\u3063\u3066\u6975\u3081\u3066\u91cd\u8981\u306a\u30d4\u30f3\u3067\u3059\u3002<\/strong> RST\uff08\u30ea\u30bb\u30c3\u30c8\uff09\uff1a.<\/li>\n\n\n\n
  3. \u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30ea\u30bb\u30c3\u30c8\u7528\u3067\u3059\u3002<\/strong> SPI\u30e2\u30fc\u30c9\u3068\u6975\u6027.<\/li>\n\n\n\n
  4. \u5168\u3066\u306eSPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u304c\u540c\u3058\u3088\u3046\u306b\u4f5c\u3089\u308c\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30af\u30ed\u30c3\u30af\u6975\u6027\uff08CPOL\uff09\u3068\u4f4d\u76f8\uff08CPHA\uff09\u306b\u5fdc\u3058\u3066\u3001\u7570\u306a\u308b\u300c\u30e2\u30fc\u30c9\u300d\uff08\u30e2\u30fc\u30c90\u304b\u3089\u30e2\u30fc\u30c93\uff09\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002ILI9341\u306e\u3088\u3046\u306a\u307b\u3068\u3093\u3069\u306e\u6700\u65b0\u30c9\u30e9\u30a4\u30d0\u306f\u3001\u30c7\u30fc\u30bf\u304c\u30af\u30ed\u30c3\u30af\u306e\u7acb\u3061\u4e0a\u304c\u308a\u30a8\u30c3\u30b8\u3067\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3055\u308c\u308b\u30e2\u30fc\u30c90\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/strong> 2. SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3092\u4f7f\u7528\u3059\u308b\u6bd4\u985e\u306a\u304d\u5229\u70b9 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u5229\u70b91\uff1a\u7206\u767a\u7684\u306a\u30c7\u30fc\u30bf\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8.<\/li>\n\n\n\n
  5. SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u6700\u5927\u306e\u300c\u5229\u70b9\u300d\u306f\u901f\u5ea6\u3067\u3059\u3002I2C\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u7d04400kbps\u306b\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u306e\u306b\u5bfe\u3057\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2SPI\u30d0\u30b9\u306f\u5bb9\u6613\u306b20Mbps\u304b\u308940Mbps\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002<\/strong> \u6a19\u6e96\u7684\u306a320\u00d7240 TFT\u306e\u8a08\u7b97\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\uff1a.<\/li>\n\n\n\n
  6. \u7dcf\u30d4\u30af\u30bb\u30eb\u6570\uff1a 320 \u00d7 240 = 76,800<\/strong> \u30d4\u30af\u30bb\u30eb\u3042\u305f\u308a\u306e\u30d3\u30c3\u30c8\u6570\uff08RGB565\uff09\uff1a 16 \u30d3\u30c3\u30c8.<\/li>\n<\/ol>\n\n\n\n

    \u30d5\u30ec\u30fc\u30e0\u3042\u305f\u308a\u306e\u7dcf\u30d3\u30c3\u30c8\u6570\uff1a 1,228,800<\/h3>\n\n\n\n

    400kHz\u306eI2C\u30d0\u30b9\u3067\u306f\u30011\u30d5\u30ec\u30fc\u30e0\u3092\u63cf\u753b\u3059\u308b\u306e\u306b3.07\u79d2\u304b\u304b\u308a\u307e\u3059\u300220MHz\u306eSPI\u30d0\u30b9\u3067\u306f\u3001\u308f\u305a\u304b0.06\u79d2\u3067\u6e08\u307f\u3001\u6ed1\u3089\u304b\u306a16 FPS\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002DMA\uff08\u30c0\u30a4\u30ec\u30af\u30c8\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\uff09\u3092\u4f7f\u7528\u3059\u308c\u3070\u3001\u3053\u308c\u306f\u3055\u3089\u306b\u5411\u4e0a\u3057\u307e\u3059\u3002 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u5229\u70b92\uff1a\u30e6\u30cb\u30d0\u30fc\u30b5\u30eb\u306a\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u4e92\u63db\u6027 ILI9341<\/strong> \u4f4e\u6d88\u8cbb\u96fb\u529b\u306eMSP430\u304b\u3089\u9ad8\u6027\u80fd\u306aSTM32\u30b7\u30ea\u30fc\u30ba\u307e\u3067\u3001\u307b\u307c\u5168\u3066\u306eMCU\u306f\u5c02\u7528\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2SPI\u30da\u30ea\u30d5\u30a7\u30e9\u30eb\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u304c\u7570\u306a\u308b\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u9593\u3067\u975e\u5e38\u306b\u9ad8\u3044\u79fb\u690d\u6027\u3092\u6301\u3064\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n

    \n\n\n\n

    \u5229\u70b93\uff1a\u7c21\u7d20\u5316\u3055\u308c\u305fPCB\u914d\u7dda<\/h2>\n\n\n\n

    \u30d1\u30e9\u30ec\u30eb\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u6bd4\u8f03\u3057\u3066<\/h3>\n\n\n\n

    The single biggest \u201cPro\u201d for \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> is speed. While the I2C communication protocol<\/strong> is limited to roughly 400kbps, a hardware SPI bus can easily sustain 20Mbps to 40Mbps.<\/p>\n\n\n\n

    Let\u2019s look at the math for a standard 320\u00d7240 TFT:<\/p>\n\n\n\n

    Total Pixels: $320 \\times 240 = 76,800$<\/p>\n\n\n\n

    Bits per Pixel (RGB565): $16$ bits<\/p>\n\n\n\n

    Total bits per frame: $1,228,800$<\/p>\n\n\n\n

    On a 400kHz I2C bus, it would take 3.07 seconds<\/strong> to draw one frame. On a 20MHz SPI bus, it takes only 0.06 seconds<\/strong>, enabling a smooth 16 FPS<\/strong>. With DMA (Direct Memory Access)<\/strong>, this jumps even higher.<\/p>\n\n\n\n

    Pro #2: Universal Microcontroller Compatibility<\/h3>\n\n\n\n

    From the low-power MSP430<\/strong> to the high-performance STM32 series<\/strong>, almost every MCU has a dedicated hardware SPI peripheral. This means \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> are incredibly portable across different hardware ecosystems.<\/p>\n\n\n\n

    Pro #3: Simplified PCB Routing<\/h3>\n\n\n\n

    Compared to parallel display interfaces<\/strong> \uff088\u672c\u300116\u672c\u3001\u307e\u305f\u306f24\u672c\u306e\u30c7\u30fc\u30bf\u30e9\u30a4\u30f3\u3092\u5fc5\u8981\u3068\u3059\u308b\u3082\u306e\u3068\u306f\u7570\u306a\u308a\uff09\u3001, \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u308f\u305a\u304b4\u301c6\u672c\u306e\u30e9\u30a4\u30f3\u306e\u307f\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001 \u591a\u5c64PCB\u8a2d\u8a08\u306e\u8907\u96d1\u3055\u304c\u5927\u5e45\u306b\u8efd\u6e1b\u3055\u308c\u3001<\/strong> \u30c8\u30ec\u30fc\u30b9\u9577\u306e\u4e0d\u4e00\u81f4\u3084\u4fe1\u53f7\u30b9\u30ad\u30e5\u30fc\uff08\u4f4d\u76f8\u305a\u308c\uff09\u306e\u30ea\u30b9\u30af\u304c\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n

    \n\n\n\n

    3. \u91cd\u5927\u306a\u6b20\u70b9\uff1aSPI\u306e\u9650\u754c<\/h2>\n\n\n\n

    \u6b20\u70b91\uff1a\u30d4\u30f3\u6570\u306e\u30da\u30ca\u30eb\u30c6\u30a3<\/h3>\n\n\n\n

    \u30d1\u30e9\u30ec\u30eb\u65b9\u5f0f\u3088\u308a\u306f\u5358\u7d14\u3067\u3059\u304c\u3001, \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> I2C\u3068\u6bd4\u8f03\u3057\u3066\u300c\u30d4\u30f3\u3092\u8caa\u308b\u300d\u65b9\u5f0f\u3067\u3059\u3002\u5178\u578b\u7684\u306a\u69cb\u6210\uff08CS\u3001DC\u3001RST\u3001SCK\u3001MOSI\u3001BL\uff09\u3067\u306f6\u672c\u306eGPIO\u30d4\u30f3\u3092\u6d88\u8cbb\u3057\u307e\u3059\u3002 ATtiny\u306e\u3088\u3046\u306a<\/strong> \u5c0f\u578b\u30d5\u30a9\u30fc\u30e0\u30d5\u30a1\u30af\u30bf\u306eMCU\u3067\u306f\u3001\u3053\u308c\u306f\u5229\u7528\u53ef\u80fd\u306aI\/O\u306e75%\u3092\u5360\u3081\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n

    \u6b20\u70b92\uff1a\u8ddd\u96e2\u3068\u4fe1\u53f7\u5b8c\u5168\u6027<\/h3>\n\n\n\n

    SPI\u306f\uff08USB\u3084\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3068\u306f\u7570\u306a\u308a\uff09\u5dee\u52d5\u4fe1\u53f7\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30af\u30ed\u30c3\u30af\u901f\u5ea6\u304c\u4e0a\u304c\u308b\u306b\u3064\u308c\u3001\u4fe1\u53f7\u306f \u96fb\u78c1\u5e72\u6e09\uff08EMI\uff09<\/strong>. \u306b\u5bfe\u3057\u3066\u975e\u5e38\u306b\u654f\u611f\u306b\u306a\u308a\u307e\u3059\u3002 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u304cMCU\u304b\u308915cm\u4ee5\u4e0a\u96e2\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u554f\u984c\u306b\u906d\u9047\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n

      \n
    • \u8272\u53cd\u8ee2\uff1a<\/strong> \u30d3\u30c3\u30c8\u306e\u8aad\u307f\u9593\u9055\u3044\u306b\u3088\u308b\u300c\u30b4\u30fc\u30b9\u30c8\u300d\u30ab\u30e9\u30fc\u3002.<\/li>\n\n\n\n
    • \u753b\u9762\u30c6\u30a3\u30a2\u30ea\u30f3\u30b0\uff1a<\/strong> \u30af\u30ed\u30c3\u30af\u30d1\u30eb\u30b9\u306e\u6b20\u843d\u306b\u3088\u308b\u90e8\u5206\u7684\u306a\u66f4\u65b0\u3002.<\/li>\n\n\n\n
    • \u5b8c\u5168\u306a\u30ed\u30c3\u30af\u30a2\u30c3\u30d7\uff1a<\/strong> \u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u30b3\u30de\u30f3\u30c9\u306b\u5fdc\u7b54\u3057\u306a\u304f\u306a\u308b\u3002.<\/li>\n<\/ul>\n\n\n\n

      \u6b20\u70b93\uff1a\u7d44\u307f\u8fbc\u307f\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u306e\u6b20\u5982<\/h3>\n\n\n\n

      \u3067 I2C\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u3067\u306f\u3001<\/strong>, \u5404\u30c7\u30d0\u30a4\u30b9\u306f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30c9\u30ec\u30b9\u3092\u6301\u3061\u307e\u3059\u3002SPI\u3067\u306f\u3001\u5404\u30c7\u30d0\u30a4\u30b9\u3054\u3068\u306b\u7269\u7406\u7684\u306a \u30c1\u30c3\u30d7\u30bb\u30ec\u30af\u30c8\uff08CS\uff09<\/strong> \u30d4\u30f3\u304c\u5fc5\u8981\u3067\u3059\u3002\u8907\u6570\u306e\u30bb\u30f3\u30b5\u30fc\u30682\u3064\u306e\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3092\u5099\u3048\u305f \u8907\u96d1\u306aIoT\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/strong> \u3092\u69cb\u7bc9\u3059\u308b\u5834\u5408\u3001 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong>, \u30d4\u30f3\u7ba1\u7406\u306f\u904b\u7528\u4e0a\u306e\u60aa\u5922\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n

      \n\n\n\n

      4. \u7af6\u5408\u88fd\u54c1\u8a73\u7d30\u6bd4\u8f03\uff1aILI9341 vs. ST7789 vs. SSD1306<\/h2>\n\n\n\n

      \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u9069\u5207\u306a\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u9078\u3076\u3053\u3068\u306f\u3001 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u30d7\u30ed\u30c8\u30b3\u30eb\u81ea\u4f53\u3068\u540c\u3058\u304f\u3089\u3044\u91cd\u8981\u3067\u3059\u3002\u696d\u754c\u306e\u300c\u30d3\u30c3\u30b0\u30b9\u30ea\u30fc\u300d\u306e\u8a73\u7d30\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n

      \u30c9\u30e9\u30a4\u30d0\u30fc\u30c1\u30c3\u30d7<\/strong><\/td>\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u30bf\u30a4\u30d7<\/strong><\/td>\u6700\u5927\u89e3\u50cf\u5ea6<\/strong><\/td>\u6700\u9069\u306a\u4f7f\u7528\u4f8b<\/strong><\/td><\/tr><\/thead>
      ILI9341<\/strong><\/td>TFT LCD<\/td>320\u00d7240<\/td>\u6700\u3082\u4e00\u822c\u7684\u3067\u3001\u81a8\u5927\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u30b5\u30dd\u30fc\u30c8\u3042\u308a\u3002.<\/td><\/tr>
      ST7789<\/strong><\/td>IPS LCD<\/td>240\u00d7240<\/td>\u512a\u308c\u305f\u8272\u5f69\u3001\u9ad8\u901fSPI\uff0850MHz\u4ee5\u4e0a\uff09\u3002.<\/td><\/tr>
      SSD1306<\/strong><\/td>\u6709\u6a5fEL<\/td>128\u00d764<\/td>\u4f4e\u6d88\u8cbb\u96fb\u529b\u3001\u9ad8\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3001 \u30a6\u30a7\u30a2\u30e9\u30d6\u30eb<\/strong>.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      \u5358\u8272\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306b\u6700\u9069\u3002<\/h3>\n\n\n\n

      \u306b\u3064\u3044\u3066 ILI9341<\/strong> ILI9341\u304c\u300c\u30c7\u30d5\u30a9\u30eb\u30c8\u300d\u9078\u629e\u80a2\u3067\u3042\u308b\u7406\u7531 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong>. \u3053\u306e\u30c1\u30c3\u30d7\u306fTFT\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u738b\u8005\u3067\u3059\u3002 \u4e16\u754c\u3067\u6700\u3082\u6587\u66f8\u5316\u3055\u308c\u305f\u30c1\u30c3\u30d7\u3067\u3042\u308a\u3001\u30d0\u30b0\u306b\u906d\u9047\u3057\u305f\u5834\u5408\u300199%\u306e\u78ba\u7387\u3067<\/strong>. Arduino\u30d5\u30a9\u30fc\u30e9\u30e0.<\/p>\n\n\n\n

      \n\n\n\n

      \u306b\u89e3\u6c7a\u7b56\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u5e45\u5e83\u3044\u753b\u9762\u65b9\u5411\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3001\u7d44\u307f\u8fbc\u307f\u306e\u30ac\u30f3\u30de\u88dc\u6b63\u6a5f\u80fd\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002<\/h2>\n\n\n\n

      5. \u9ad8\u5ea6\u306a\u6700\u9069\u5316\uff1aDMA\u3068\u30d5\u30ec\u30fc\u30e0\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u306e\u6d3b\u7528 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3092\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306e\u3088\u3046\u306b\u5fdc\u7b54\u6027\u306e\u9ad8\u3044\u3082\u306e\u306b\u3057\u305f\u3044\u306e\u3067\u3042\u308c\u3070\u3001\u6a19\u6e96\u7684\u306a\u300c\u30d3\u30c3\u30c8\u30d0\u30f3\u30ae\u30f3\u30b0\u300d\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u983c\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002 \u30c0\u30a4\u30ec\u30af\u30c8\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\uff08DMA\uff09<\/strong>.<\/p>\n\n\n\n

      \u3092\u6d3b\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/h3>\n\n\n\n

      SPI\u306b\u304a\u3051\u308bDMA\u3068\u306f\uff1f \u901a\u5e38\u3001CPU\u306f\u30d4\u30af\u30bb\u30eb\u30c7\u30fc\u30bf\u306e\u3059\u3079\u3066\u306e\u30d0\u30a4\u30c8\u3092SPI\u30d0\u30c3\u30d5\u30a1\u306b\u300c\u624b\u6e21\u3057\u300d\u3067\u904b\u3076\u5fc5\u8981\u304c\u3042\u308a\u3001\u3053\u308c\u306b\u3088\u308aCPU\u306e\u6ce8\u610f\u529b\u306e100%\u304c\u6d88\u8cbb\u3055\u308c\u307e\u3059\u3002<\/strong>, DMA\u6700\u9069\u5316\u3092\u65bd\u3059\u3068\u3001 \u201cCPU\u306fDMA\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u6307\u793a\u3059\u308b\u3060\u3051\u3067\u3059\uff1a\u201d<\/em><\/p>\n\n\n\n

      \u300c\u3053\u308c\u304c\u79c1\u306e\u753b\u50cf\u306e\u30e1\u30e2\u30ea\u30a2\u30c9\u30ec\u30b9\u3060\u3002\u79c1\u304c\u4ed6\u306e\u4f5c\u696d\u3092\u3057\u3066\u3044\u308b\u9593\u306b\u3001\u3053\u308c\u3092SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306b\u9001\u4fe1\u3057\u3066\u304f\u308c\u3002\u300d<\/h3>\n\n\n\n

      \u30c0\u30d6\u30eb\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u306e\u5b9f\u88c5 \uff08ESP32-S3 with PSRAM\u306e\u3088\u3046\u306a\u3082\u306e\u3092\u4f7f\u7528\u3057\u305f\uff09<\/strong> \u30cf\u30a4\u30a8\u30f3\u30c9\u306e\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001 DC\/RS\uff08\u30c7\u30fc\u30bf\/\u30b3\u30de\u30f3\u30c9\uff09\uff1a<\/strong> \u30c0\u30d6\u30eb\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0 \u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/strong>.<\/p>\n\n\n\n

        \n
      1. \u30d0\u30c3\u30d5\u30a1A\uff1a<\/strong> \u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u304c\u73fe\u5728\u8aad\u307f\u53d6\u308a\u8868\u793a\u3057\u3066\u3044\u308b\u3082\u306e\u3002.<\/li>\n\n\n\n
      2. \u30d0\u30c3\u30d5\u30a1B\uff1a<\/strong> CPU\u306f\u3053\u3053\u3067 \u9769\u65b0\u7684<\/em> \u30d5\u30ec\u30fc\u30e0\u3092\u63cf\u753b\u3057\u3066\u3044\u307e\u3059\u3002.<\/li>\n\n\n\n
      3. \u30b9\u30a4\u30c3\u30c1:<\/strong> \u63cf\u753b\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001\u30dd\u30a4\u30f3\u30bf\u304c\u4ea4\u63db\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u6280\u8853\u306b\u3088\u308a\u3001\u4f4e\u4fa1\u683c\u306a\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3067\u3088\u304f\u898b\u3089\u308c\u308b\u300c\u5782\u76f4\u7dda\u300d\u306e\u3061\u3089\u3064\u304d\u304c\u89e3\u6d88\u3055\u308c\u307e\u3059\u3002 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong>.<\/li>\n<\/ol>\n\n\n\n
        \n\n\n\n

        6. \u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0: \u30ec\u30d9\u30eb\u30b7\u30d5\u30c8\u3068\u96fb\u6e90\u7ba1\u7406<\/h2>\n\n\n\n

        \u73fe\u5834\u3067\u306e\u6545\u969c\u3067\u6700\u3082\u4e00\u822c\u7684\u306a\u539f\u56e0\u306e\u4e00\u3064\u306f\u3001 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u4e0d\u9069\u5207\u306a\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u7d71\u5408\u3067\u3059\u3002.<\/p>\n\n\n\n

        3.3V\u5bfe5V\u30ed\u30b8\u30c3\u30af\u306e\u843d\u3068\u3057\u7a74<\/h3>\n\n\n\n

        \u6700\u3082 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \uff08\u7279\u306bTFT\uff09\u306f3.3V\u30c7\u30d0\u30a4\u30b9\u3067\u3059\u3002\u3053\u308c\u3089\u30925V\u306e Arduino Uno<\/strong>, \u306b\u76f4\u63a5\u63a5\u7d9a\u3059\u308b\u3068\u3001\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u8ad6\u7406\u30b2\u30fc\u30c8\u3092\u713c\u640d\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002.<\/p>\n\n\n\n

        \n

        \u89e3\u6c7a\u7b56:<\/strong> SCK\u304a\u3088\u3073MOSI\u30e9\u30a4\u30f3\u306b\u306f\u3001\u5fc5\u305a \u30ed\u30b8\u30c3\u30af\u30ec\u30d9\u30eb\u30b7\u30d5\u30bf<\/strong> \uff0874LVC245\u306a\u3069\uff09\u307e\u305f\u306f\u5c02\u7528\u306e\u96fb\u5727\u5206\u5727\u5668\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<\/blockquote>\n\n\n\n

        \u30d0\u30c3\u30af\u30e9\u30a4\u30c8\u306e\u96fb\u6d41\u6d88\u8cbb<\/h3>\n\n\n\n

        3.5\u30a4\u30f3\u30c1 SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4<\/strong> \u306e\u30d0\u30c3\u30af\u30e9\u30a4\u30c8\u306f\u3001\u6700\u5927150mA\u3092\u6d88\u8cbb\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u591a\u304f\u306e\u5834\u5408\u3001MCU\u306e LDO\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf<\/strong> \u304c\u904e\u71b1\u305b\u305a\u306b\u51e6\u7406\u3067\u304d\u308b\u5bb9\u91cf\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n

          \n
        • \u30d7\u30ed\u306e\u30d2\u30f3\u30c8:<\/strong> \u30d0\u30c3\u30af\u30e9\u30a4\u30c8\u306e\u99c6\u52d5\u306b\u306f MOSFET<\/strong> \u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001 PWM\uff08\u30d1\u30eb\u30b9\u5e45\u5909\u8abf\uff09<\/strong> \u3092\u4f7f\u7528\u3057\u3066\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u8f1d\u5ea6\u3092\u5236\u5fa1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001 \u30d0\u30c3\u30c6\u30ea\u30fc\u99c6\u52d5\u30c7\u30d0\u30a4\u30b9\u306e\u8a2d\u8a08<\/strong>.<\/li>\n<\/ul>\n\n\n\n
          \n\n\n\n

          \u306b\u304a\u3044\u3066\u5fc5\u9808\u3068\u306a\u308a\u307e\u3059\u3002<\/h2>\n\n\n\n

          7. SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0: \u5b9f\u5730\u30ac\u30a4\u30c9<\/p>\n\n\n\n

            \n
          1. \u753b\u9762\u304c\u767d\u3044\u307e\u307e\u3001\u307e\u305f\u306f\u300c\u30ce\u30a4\u30ba\u300d\u3092\u8868\u793a\u3059\u308b\u5834\u5408\u306f\u3001\u6b21\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044:<\/strong> \u30af\u30ed\u30c3\u30af\u901f\u5ea6\u3092\u78ba\u8a8d: \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u591a\u304f\u306e\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306f40MHz\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3068\u8b33\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u30d6\u30ec\u30c3\u30c9\u30dc\u30fc\u30c9\u4e0a\u3067\u306f20MHz\u3092\u8d85\u3048\u308b\u3068\u52d5\u4f5c\u3057\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30c6\u30b9\u30c8\u6642\u306b\u306f SPI_CLOCK<\/code> \u30924MHz\u306b\u4e0b\u3052\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n\n\n\n
          2. \u30ea\u30bb\u30c3\u30c8\u30d4\u30f3\u3092\u78ba\u8a8d:<\/strong> \u591a\u304f\u306e\u30c9\u30e9\u30a4\u30d0\u306f\u3001SPI\u30b3\u30de\u30f3\u30c9\u3092\u53d7\u3051\u4ed8\u3051\u308b\u524d\u306b\u3001\u975e\u5e38\u306b\u7279\u5b9a\u306e\u30ea\u30bb\u30c3\u30c8\u30b7\u30fc\u30b1\u30f3\u30b9\uff0810ms\u9593Low\u2192100ms\u9593High\uff09\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002.<\/li>\n\n\n\n
          3. \u5171\u6709\u30d0\u30b9\u306e\u7af6\u5408:<\/strong> \u540c\u3058\u30d0\u30b9\u4e0a\u3067 SD\u30ab\u30fc\u30c9\u30e2\u30b8\u30e5\u30fc\u30eb<\/strong> \u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3092\u521d\u671f\u5316\u3059\u308b\u524d\u306b\u3001SD\u30ab\u30fc\u30c9\u306eCS\u304cHIGH\uff08\u7121\u52b9\uff09\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n\n\n\n
          4. \u30c7\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u30b3\u30f3\u30c7\u30f3\u30b5:<\/strong> \u9ad8\u5468\u6ce2\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30ce\u30a4\u30ba\u3092\u9664\u53bb\u3059\u308b\u305f\u3081\u300110uF\u30680.1uF\u306e\u30b3\u30f3\u30c7\u30f3\u30b5\u3092\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306eVCC\/GND\u306b\u3067\u304d\u308b\u3060\u3051\u8fd1\u63a5\u3057\u3066\u914d\u7f6e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n<\/ol>\n\n\n\n
            \n\n\n\n

            8. SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u5b9f\u4e16\u754c\u3067\u306e\u4f7f\u7528\u4f8b<\/h2>\n\n\n\n

            \u4e8b\u4f8b\u7814\u7a76A: \u30ec\u30c8\u30ed\u643a\u5e2f\u30b2\u30fc\u30e0\u6a5f<\/h3>\n\n\n\n

            In projects like the GameBoy Nano<\/strong>, \u306e\u3088\u3046\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001 \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u4f7f\u7528\u304c\u5fc5\u9808\u3067\u3059\u3002\u9ad8\u3044FPS\u306b\u3088\u308a60Hz\u3067\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u304c\u53ef\u80fd\u3068\u306a\u308a\u3001\u5c11\u306a\u3044\u30d4\u30f3\u6570\u306b\u3088\u308aD\u30d1\u30c3\u30c9\u3084\u30dc\u30bf\u30f3\u7528\u306b\u5341\u5206\u306aGPIO\u3092\u6b8b\u305b\u307e\u3059\u3002.<\/p>\n\n\n\n

            \u4e8b\u4f8b\u7814\u7a76B: \u7523\u696d\u7528\u30bb\u30f3\u30b5\u30fc\u30e2\u30cb\u30bf\u30fc<\/h3>\n\n\n\n

            # SPI\u3092\u6709\u52b9\u5316 \u7523\u696d\u7528IoT\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9<\/strong>, \u3067\u306f\u3001\u4fe1\u983c\u6027\u304c\u9375\u3068\u306a\u308a\u307e\u3059\u3002. SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4<\/strong> \u306f\u3001\u30e2\u30fc\u30bf\u30fc\u30ce\u30a4\u30ba\u306e\u591a\u3044\u74b0\u5883\u3067\u306fI2C\u3088\u308a\u3082\u5805\u7262\u306a\u63a5\u7d9a\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u7279\u306b\u30b7\u30fc\u30eb\u30c9\u30b1\u30fc\u30d6\u30eb\u3068\u7d44\u307f\u5408\u308f\u305b\u305f\u5834\u5408\u306b\u6709\u52b9\u3067\u3059\u3002.<\/p>\n\n\n\n

            \n\n\n\n

            FAQ: SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306b\u95a2\u3059\u308b\u3059\u3079\u3066<\/h2>\n\n\n\n

            Q: SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3092\u9577\u8ddd\u96e2\u3067\u52d5\u4f5c\u3055\u305b\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304b\uff1f<\/strong><\/p>\n\n\n\n

            A: \u5bb9\u6613\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6a19\u6e96SPI\u306f\u300cPCB\u4e0a\u300d\u307e\u305f\u306f\u300c\u77ed\u3044\u30b1\u30fc\u30d6\u30eb\u300d\u901a\u4fe1\u3092\u60f3\u5b9a\u3057\u3066\u3044\u307e\u3059\u30021\u30e1\u30fc\u30c8\u30eb\u3092\u8d85\u3048\u308b\u8ddd\u96e2\u306e\u5834\u5408\u306f\u3001 RS485<\/strong> \u306e\u4f7f\u7528\u3084\u3001\u5c02\u7528\u30c9\u30e9\u30a4\u30d0\u30c1\u30c3\u30d7\u3092\u7528\u3044\u3066SPI\u4fe1\u53f7\u3092\u5dee\u52d5\u30da\u30a2\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3059\u3079\u304d\u3067\u3059\u3002.<\/p>\n\n\n\n

            Q: SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u304cArduino Uno\u3067\u306fESP32\u3088\u308a\u3082\u975e\u5e38\u306b\u9045\u3044\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/strong><\/p>\n\n\n\n

            A: Arduino Uno\u306f16MHz\u3067\u52d5\u4f5c\u3059\u308b8\u30d3\u30c3\u30c8\u30d7\u30ed\u30bb\u30c3\u30b5\u3067\u3001\u6700\u5927SPI\u30af\u30ed\u30c3\u30af\u306f8MHz\u3067\u3059\u3002ESP32\u306f240MHz\u3067\u52d5\u4f5c\u3059\u308b32\u30d3\u30c3\u30c8\u30d7\u30ed\u30bb\u30c3\u30b5\u3067\u3001SPI\u30af\u30ed\u30c3\u30af\u306f80MHz\u3067\u3059\u3002\u751f\u306e\u51e6\u7406\u80fd\u529b\u304c\u3001 \u7d44\u307f\u8fbc\u307fGUI\u30e9\u30a4\u30d6\u30e9\u30ea<\/strong> \u304c\u30d4\u30af\u30bb\u30eb\u30c7\u30fc\u30bf\u3092\u8a08\u7b97\u3059\u308b\u901f\u5ea6\u306b\u5927\u304d\u306a\u9055\u3044\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n

            Q: SPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306f\u30bf\u30c3\u30c1\u30b9\u30af\u30ea\u30fc\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u304b\uff1f<\/strong><\/p>\n\n\n\n

            A: \u306f\u3044\u3002\u591a\u304f\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u306f XPT2046\u30bf\u30c3\u30c1\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9<\/strong> \u304c\u540c\u4e00\u57fa\u677f\u4e0a\u306b\u5b9f\u88c5\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u901a\u5e38\u3001\u72ec\u81ea\u306eSPI\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5099\u3048\u3066\u304a\u308a\u3001MOSI\/MISO\/SCK\u30e9\u30a4\u30f3\u306f\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3068\u5171\u6709\u3057\u307e\u3059\u304c\u3001\u5c02\u7528\u306eCS\u30d4\u30f3\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n

            Q: \u521d\u5fc3\u8005\u306b\u3068\u3063\u3066\u6700\u9069\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong><\/p>\n\n\n\n

            A: \u3082\u3057 Arduino\u4e92\u63db<\/strong> \u30dc\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001 Adafruit_GFX<\/strong>. \u304b\u3089\u59cb\u3081\u3066\u304f\u3060\u3055\u3044\u3002ESP32\u3084STM32\u3067\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306a\u901f\u5ea6\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001 TFT_eSPI<\/strong> \u307e\u305f\u306f LVGL<\/strong>.<\/p>\n\n\n\n

            \n\n\n\n

            \u306b\u79fb\u884c\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/h2>\n\n\n\n

            \u7d50\u8ad6\uff1aSPI\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306f\u3042\u306a\u305f\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u304b\uff1f \u306f\u300c\u3061\u3087\u3046\u3069\u826f\u3044\u300d\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u53f0\u982d\u3057\u3066\u3044\u307e\u3059\u2014\u2014\u901f\u5ea6\u3001\u8907\u96d1\u3055\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/strong> \u4f7f\u7528\u306e\u6c7a\u5b9a\u306f\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8981\u4ef6\u306e\u30d0\u30e9\u30f3\u30b9\u306b\u5e30\u7740\u3057\u307e\u3059\u3002\u9ad8\u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u3001\u9bae\u3084\u304b\u306a\u8272\u5f69\u3001\u305d\u3057\u3066\u9069\u5ea6\u306a\u6570\u306eGPIO\u30d4\u30f3\u304c\u5229\u7528\u53ef\u80fd\u306a\u5834\u5408\u3001 SPI\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong> \u306f\u4ed6\u306b\u985e\u3092\u898b\u306a\u3044\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u3002\u3088\u308a\u5358\u7d14\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u6bd4\u3079\u3066 \u4fe1\u53f7\u54c1\u8cea<\/strong> \u305d\u3057\u3066 \u30ed\u30b8\u30c3\u30af\u30ec\u30d9\u30eb\u30b7\u30d5\u30c8<\/strong> \u306b\u3088\u308a\u6ce8\u610f\u3092\u6255\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5f97\u3089\u308c\u308b\u6027\u80fd\u5411\u4e0a\u306f\u7591\u3044\u3088\u3046\u304c\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n

            \u3092\u7fd2\u5f97\u3057\u3001\u9069\u5207\u306a\u30c9\u30e9\u30a4\u30d0\uff08\u4f8b\uff1a \u901a\u5e38\u3001CPU\u306f\u30d4\u30af\u30bb\u30eb\u30c7\u30fc\u30bf\u306e\u3059\u3079\u3066\u306e\u30d0\u30a4\u30c8\u3092SPI\u30d0\u30c3\u30d5\u30a1\u306b\u300c\u624b\u6e21\u3057\u300d\u3067\u904b\u3076\u5fc5\u8981\u304c\u3042\u308a\u3001\u3053\u308c\u306b\u3088\u308aCPU\u306e\u6ce8\u610f\u529b\u306e100%\u304c\u6d88\u8cbb\u3055\u308c\u307e\u3059\u3002<\/strong> \uff09\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u5358\u7d14\u306a\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u9ad8\u7d1a\u306a\u30b0\u30e9\u30d5\u30a3\u30ab\u30eb\u4f53\u9a13\u3078\u3068\u5909\u9769\u3067\u304d\u307e\u3059\u3002 ST7789<\/strong>\u30bf\u30c3\u30c1\u30b9\u30af\u30ea\u30fc\u30f3\u4ed8\u304dTFT LCD\u30e2\u30b8\u30e5\u30fc\u30eb\uff1a\u78ba\u304b\u306a2026\u5e74\u8abf\u9054\u30ac\u30a4\u30c9 3.<\/p>","protected":false},"excerpt":{"rendered":"

            In the world of embedded systems engineering, the interface between your logic and your user is everything. As graphical interfaces move from simple character LCDs to high-resolution TFTs, the choice of communication protocol becomes a pivot point for project success. Among the options, spi displays have emerged as the “Goldilocks” solution\u2014balancing speed, complexity, and cost. Whether you are a professional developer working on an industrial HMI or a hobbyist perfecting a retro gaming handheld, this exhaustive guide explores every technical facet of spi displays. 1. The Technical Architecture of SPI Displays To understand the value of spi displays, one must first understand the “Serial Peripheral Interface” protocol itself. SPI is […]<\/p>\n","protected":false},"author":2,"featured_media":45263,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[438],"tags":[514],"class_list":["post-45260","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-display-modules"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/posts\/45260","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/comments?post=45260"}],"version-history":[{"count":1,"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/posts\/45260\/revisions"}],"predecessor-version":[{"id":45262,"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/posts\/45260\/revisions\/45262"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/media\/45263"}],"wp:attachment":[{"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/media?parent=45260"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/categories?post=45260"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rjydisplay.com\/ja\/wp-json\/wp\/v2\/tags?post=45260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}