{"id":2236,"date":"2022-05-11T18:44:30","date_gmt":"2022-05-11T18:44:30","guid":{"rendered":"https:\/\/picockpit.com\/raspberry-pi\/?p=2236"},"modified":"2023-09-18T13:53:06","modified_gmt":"2023-09-18T13:53:06","slug":"i2c-the-inter-integrated-circuit-bus","status":"publish","type":"post","link":"https:\/\/picockpit.com\/raspberry-pi\/ja\/i2c%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%82%a4%e3%83%b3%e3%83%86%e3%82%b0%e3%83%ac%e3%83%bc%e3%83%86%e3%83%83%e3%83%89%e3%82%b5%e3%83%bc%e3%82%ad%e3%83%83%e3%83%88%e3%83%90%e3%82%b9\/","title":{"rendered":"I2C - \u56de\u8def\u9593\u30d0\u30b9"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/i2c-title-image-1024x576.png\" alt=\"I2C\u306e\u3059\u3079\u3066 \u30bf\u30a4\u30c8\u30eb\u753b\u50cf\" class=\"wp-image-5346\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/i2c-title-image-1024x576.png 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/i2c-title-image-300x169.png 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/i2c-title-image-768x432.png 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/i2c-title-image-18x10.png 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/i2c-title-image.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>I2C\u30d0\u30b9\u306f\u3001\u7d44\u307f\u8fbc\u307f\u306e\u9818\u57df\u3067\u975e\u5e38\u306b\u3088\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u4ed5\u7d44\u307f\u3068Raspberry Pi\u3067\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3092\u4f8b\u3092\u6319\u3052\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">I2C\u7279\u6027<\/h2>\n\n\n\n<p>Inter-Integrated Circuit Bus\u306f\u3001\u540c\u671f\u5f0f\u30b7\u30ea\u30a2\u30eb\u901a\u4fe1\u30d0\u30b9\u3067\u3042\u308b\u30021982\u5e74\u306b\u30d5\u30a3\u30ea\u30c3\u30d7\u30b9\u30bb\u30df\u30b3\u30f3\u30c0\u30af\u30bf\u30fc\u30ba\u304c\u767a\u660e\u3092\u62c5\u5f53\u3057\u305f\u304c\u3001\u3053\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u3059\u3050\u306b\u4eba\u6c17\u3092\u535a\u3057\u305f\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Characteristics-1024x275.jpg\" alt=\"I2C\u7279\u6027\" class=\"wp-image-2247\" style=\"width:662px;height:177px\" width=\"662\" height=\"177\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Characteristics-1024x275.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Characteristics-300x81.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Characteristics-768x207.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Characteristics-1536x413.jpg 1536w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Characteristics-2048x551.jpg 2048w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Characteristics-18x5.jpg 18w\" sizes=\"auto, (max-width: 662px) 100vw, 662px\" \/><figcaption class=\"wp-element-caption\">I2C\u7279\u6027<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u3088\u304f\u4f7f\u308f\u308c\u308b\u540c\u7fa9\u8a9e\u306fI<sup>2<\/sup>C\u3001I2C\u307e\u305f\u306fIIC\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u306e\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u306f\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9-\u30bf\u30fc\u30b2\u30c3\u30c8\u30fb\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u5229\u7528\u3057\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u308f\u305a\u304b2\u672c\u306e\u30ef\u30a4\u30e4\u3067\u6700\u5927112\u53f0\u306e\u30c7\u30d0\u30a4\u30b9\u3068\u901a\u4fe1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u3001\u7279\u5b9a\u306e\u30bf\u30fc\u30b2\u30c3\u30c8\u306e\u30cb\u30fc\u30ba\u306b\u5408\u308f\u305b\u3066\u30d3\u30c3\u30c8\u30ec\u30fc\u30c8\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5f93\u3063\u3066\u3001I2C\u306f\u30bb\u30f3\u30b5\u30fc\u3001EEPROM\u30c7\u30d0\u30a4\u30b9\u3001\u30af\u30ed\u30c3\u30af\u3001\u30e2\u30fc\u30bf\u30fc\u30c9\u30e9\u30a4\u30d0\u306a\u3069\u3001\u591a\u304f\u306e\u30c7\u30d0\u30a4\u30b9\u3068\u4e92\u63db\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u914d\u7dda<\/h2>\n\n\n\n<p>I2C\u30d0\u30b9\u306e\u914d\u7dda\u306f2\u672c\u3067\u6e08\u3080\u306e\u3067\u3001\u3053\u308c\u4ee5\u4e0a\u306a\u3044\u304f\u3089\u3044\u7c21\u5358\u3067\u3059\u3002\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u30b7\u30ea\u30a2\u30eb\u30af\u30ed\u30c3\u30af\uff08SCL\uff09\u30d4\u30f3\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306e\u30b7\u30ea\u30a2\u30eb\u30af\u30ed\u30c3\u30af\u30d4\u30f3\u306b\u63a5\u7d9a\u3057\u3001\u540c\u69d8\u306b\u30bf\u30fc\u30b2\u30c3\u30c8\u306e\u30b7\u30ea\u30a2\u30eb\u30c7\u30fc\u30bf\uff08SDA\uff09\u30d4\u30f3\u3092\u63a5\u7d9a\u3057\u307e\u3059\u3002\u3042\u3068\u306f\u3001I2C\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304c\u3084\u3063\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Wiring-1024x414.jpg\" alt=\"I2C\u914d\u7dda\" class=\"wp-image-2249\" style=\"width:524px;height:211px\" width=\"524\" height=\"211\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Wiring-1024x414.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Wiring-300x121.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Wiring-768x311.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Wiring-1536x622.jpg 1536w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Wiring-2048x829.jpg 2048w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Wiring-18x7.jpg 18w\" sizes=\"auto, (max-width: 524px) 100vw, 524px\" \/><figcaption class=\"wp-element-caption\">\u914d\u7dda<\/figcaption><\/figure>\n<\/div>\n\n\n<p>I2C\u30c7\u30d0\u30a4\u30b9\u306b\u96fb\u6e90\u3092\u4f9b\u7d66\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001Raspberry Pi\u306e3V3\u30015V\u3001GROUND\u30d4\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u306e\u3088\u3046\u306a\u30c7\u30d0\u30a4\u30b9\u3082\u3042\u308a\u307e\u3059\u3002 <a href=\"https:\/\/buyzero.de\/en\/products\/luftqualitatssensor-bosch-bme688-breakout-board?_pos=6&amp;_sid=0066ef795&amp;_ss=r\">BME688\u30d6\u30ec\u30a4\u30af\u30a2\u30a6\u30c8\u30dc\u30fc\u30c9<\/a> \u306fI2C\u30d8\u30c3\u30c0\u30fc\u3092\u5099\u3048\u3066\u3044\u308b\u306e\u3067\u3001\u63a5\u7d9a\u306e\u305f\u3081\u306e\u914d\u7dda\u306f\u4e0d\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">I2C\u901a\u4fe1<\/h2>\n\n\n\n<p>\u96c6\u7a4d\u56de\u8def\u30d0\u30b9\u306f\u3001\u308f\u305a\u304b2\u672c\u306e\u914d\u7dda\u3067128\u53f0\u306e\u6a5f\u5668\u3092\u63a5\u7d9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3092\u53ef\u80fd\u306b\u3057\u305f\u306e\u306f\u3001\u901a\u4fe1\u539f\u7406\u306e\u5de5\u592b\u3067\u3059\u3002<\/p>\n\n\n\n<p>SDA \u3068 SCL \u306f\u6c7a\u3057\u3066\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u30cf\u30a4\u306b\u99c6\u52d5\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30c7\u30d0\u30a4\u30b9\u304c\u30ed\u30b8\u30c3\u30af 1 \u3092\u9001\u4fe1\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30ef\u30a4\u30e4\u30fc\u3092\u30d5\u30ed\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u307e\u307e\u306b\u3057\u307e\u3059\u3002\u30ed\u30b8\u30c3\u30af\u30bc\u30ed\u3092\u9001\u4fe1\u3059\u308b\u5834\u5408\u306f\u3001\u30ef\u30a4\u30e4\u30fc\u3092\u30b0\u30e9\u30f3\u30c9\u306b\u5f15\u304d\u51fa\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u901a\u4fe1\u3092\u958b\u59cb\u3059\u308b\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u3069\u306e\u6a5f\u5668\u3082\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3068\u30bf\u30fc\u30b2\u30c3\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e0b\u306e\u56f3\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u30d3\u30c3\u30c8\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Communication-1024x447.jpg\" alt=\"I2C\u901a\u4fe1\" class=\"wp-image-2252\" style=\"width:549px;height:239px\" width=\"549\" height=\"239\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Communication-1024x447.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Communication-300x131.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Communication-768x336.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Communication-1536x671.jpg 1536w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Communication-2048x895.jpg 2048w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Communication-18x8.jpg 18w\" sizes=\"auto, (max-width: 549px) 100vw, 549px\" \/><figcaption class=\"wp-element-caption\">I2C\u901a\u4fe1<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u901a\u4fe1\u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u306b\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306fStart\u30d3\u30c3\u30c8\u306b\u7d9a\u3044\u3066\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306eI2C\u30a2\u30c9\u30ec\u30b9\u3068\u5e0c\u671b\u3059\u308b\u52d5\u4f5c\u30e2\u30fc\u30c9\uff08R - Read\u307e\u305f\u306fW - Write\uff09\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>I2C\u901a\u4fe1\u3067\u306f\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306f8\u30d3\u30c3\u30c8\u6bce\uff081\u30d0\u30a4\u30c8\u6bce\uff09\u306bACK\u30d3\u30c3\u30c8\u3092\u8fd4\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u306f\u901a\u5e387\u30d3\u30c3\u30c8\u306a\u306e\u3067\u3001128\uff080\u301c127\uff09\u500b\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u3046\u306116\u500b\u306f\u4e88\u7d04\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u3046\u306116\u500b\u306f\u4e88\u7d04\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001112\u500b\u304c\u30c7\u30d0\u30a4\u30b9\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30bf\u30fc\u30b2\u30c3\u30c8\u30a2\u30c9\u30ec\u30b9\u3068\u52d5\u4f5c\u30e2\u30fc\u30c9\u306f1\u30d0\u30a4\u30c8\u306a\u306e\u3067\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306fACK\u30d3\u30c3\u30c8\u3092\u8fd4\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u6b21\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\uff088\u30d3\u30c3\u30c8\u306e\uff09\u30ec\u30b8\u30b9\u30bf\u30a2\u30c9\u30ec\u30b9\u3092\u9001\u308a\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306f\u305d\u308c\u3092\u518d\u5ea6\u78ba\u8a8d\u3059\u308b\u3002\u3053\u308c\u4ee5\u964d\u3001\u30ea\u30fc\u30c9\u3068\u30e9\u30a4\u30c8\u306e\u901a\u4fe1\u304c\u7570\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u66f8\u304d\u8fbc\u307f\u306e\u5834\u5408\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u30c7\u30fc\u30bf\u30928\u30d3\u30c3\u30c8\u30d6\u30ed\u30c3\u30af\u5358\u4f4d\u3067\u9001\u4fe1\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u30bf\u30fc\u30b2\u30c3\u30c8\u306f\u5404\u30d6\u30ed\u30c3\u30af\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u3001\u66f8\u304d\u8fbc\u307f\u3092\u7d42\u4e86\u3059\u308b\u3068\u3001\u30b9\u30c8\u30c3\u30d7\u30d3\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u8aad\u307f\u51fa\u3057\u306e\u5834\u5408\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306fStart\u30d3\u30c3\u30c8\u3092\u518d\u5ea6\u9001\u4fe1\u3057\u3001\u305d\u306e\u5f8c\u306b\u30bf\u30fc\u30b2\u30c3\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u30bf\u30fc\u30b2\u30c3\u30c8\u304c\u78ba\u8a8d\u3057\u30018\u30d3\u30c3\u30c8\u30d6\u30ed\u30c3\u30af\u3067\u306e\u30c7\u30fc\u30bf\u9001\u4fe1\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u5404\u30d0\u30a4\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8aad\u307f\u51fa\u3057\u3092\u505c\u6b62\u3059\u308b\u306b\u306f\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306fNACK\u30d3\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u3001\u6700\u5f8c\u306bStop\u30d3\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e1\u30ea\u30c3\u30c8<\/h3>\n\n\n\n<p>I2C Bus\u306e\u5229\u70b9\u306f\u306f\u3063\u304d\u308a\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3063\u305f2\u672c\u306e\u30ef\u30a4\u30e4\u30fc\u30682\u672c\u306e\u30d4\u30f3\u3060\u3051\u3067128\u500b\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u63a5\u7d9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u3002\u3053\u308c\u306f\u5b9f\u306b\u5f37\u529b\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u30b9\u30d4\u30fc\u30c9\u3082\u81ea\u5728\u3067\u3059\u3002\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3082\u975e\u5e38\u306b\u7c21\u5358\u3067\u3059\u3002SPI\u3068\u306f\u7570\u306a\u308a\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u30bf\u30fc\u30b2\u30c3\u30c8\u304c\u30c7\u30fc\u30bf\u3092\u6b63\u3057\u304f\u53d7\u4fe1\u3057\u305f\u304b\u3069\u3046\u304b\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Advantages-1024x443.jpg\" alt=\"\u30e1\u30ea\u30c3\u30c8\" class=\"wp-image-2251\" style=\"width:340px;height:147px\" width=\"340\" height=\"147\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Advantages-1024x443.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Advantages-300x130.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Advantages-768x333.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Advantages-18x8.jpg 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Advantages.jpg 1104w\" sizes=\"auto, (max-width: 340px) 100vw, 340px\" \/><figcaption class=\"wp-element-caption\">\u30e1\u30ea\u30c3\u30c8<\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30e1\u30ea\u30c3\u30c8<\/h3>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30a4\u30f3\u30c6\u30b0\u30ec\u30fc\u30c8\u56de\u8def\u30d0\u30b9\u306f\u3001\u30d7\u30eb\u30a2\u30c3\u30d7\u62b5\u6297\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u30b9\u30da\u30fc\u30b9\u3068\u96fb\u529b\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002SPI\u306b\u6bd4\u3079\u3001\u901f\u5ea6\u304c\u9045\u3044\u30022\u3064\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u540c\u3058I2C\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u30c8\u30e9\u30d6\u30eb\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u30c7\u30d0\u30a4\u30b9\u306b\u76f4\u63a5\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u306b\u3088\u3063\u3066\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u7279\u5b9a\u306e\u5834\u6240\u306b\u30b8\u30e3\u30f3\u30d1\u3092\u306f\u3093\u3060\u4ed8\u3051\u3059\u308b\u3053\u3068\u3067\u30012\u3064\u306e\u53ef\u80fd\u306a\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Disadvantages-1024x444.jpg\" alt=\"\u30c7\u30e1\u30ea\u30c3\u30c8\" class=\"wp-image-2250\" style=\"width:372px;height:161px\" width=\"372\" height=\"161\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Disadvantages-1024x444.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Disadvantages-300x130.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Disadvantages-768x333.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Disadvantages-18x8.jpg 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/05\/I2C-Disadvantages.jpg 1103w\" sizes=\"auto, (max-width: 372px) 100vw, 372px\" \/><figcaption class=\"wp-element-caption\">\u30c7\u30e1\u30ea\u30c3\u30c8<\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n<p>\u3092\u691c\u7d22\u3059\u308b\u3068 <a href=\"https:\/\/buyzero.de\/en\/search?type=product&amp;options%5Bprefix%5D=last&amp;options%5Bunavailable_products%5D=last&amp;q=sensor\">\u30bb\u30f3\u30b5\u30fc<\/a> \u5f53\u5e97\u3067\u306f\u3001\u30a2\u30ca\u30ed\u30b0\u4ee5\u5916\u306e\u30bb\u30f3\u30b5\u30fc\u306f\u307b\u3068\u3093\u3069I2C\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f7f\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u304a\u6c17\u3065\u304d\u3067\u3057\u3087\u3046\u3002\u7d44\u307f\u8fbc\u307f\u5206\u91ce\u3067\u306f\u975e\u5e38\u306b\u4e00\u822c\u7684\u3067\u3059\u3002I2C\u30e1\u30e2\u30ea\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u901a\u4fe1\u306b\u3053\u306e\u30d0\u30b9\u3092\u4f7f\u3046\u3053\u3068\u3082\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u4ee5\u5916\u306b\u3082\u3001\u591a\u304f\u306eDAC(<strong>D<\/strong>\u30a4\u30b0\u30b8\u30c3\u30c8 <strong>A<\/strong>\u30ca\u30ed\u30b0 <strong>C<\/strong>\u30aa\u30f3\u30d0\u30fc\u30bf\u30fc)\u3001ADC(<strong>A<\/strong>\u30ca\u30ed\u30b0 <strong>D<\/strong>\u30a4\u30b0\u30b8\u30c3\u30c8 <strong>C<\/strong>\u30aa\u30f3\u30d0\u30fc\u30bf\u30fc)\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Raspberry Pi\u306eI2C<\/h2>\n\n\n\n<p>\u79c1\u305f\u3061\u306e <a href=\"https:\/\/youtu.be\/GSmq8ZH01Sg\">\u30d3\u30c7\u30aa<\/a> \u306f\u3001Raspberry Pi\u306b\u96c6\u7a4d\u56de\u8def\u30d0\u30b9\u3092\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" hcb-fetch-image-from=\"https:\/\/www.youtube.com\/watch?v=GSmq8ZH01Sg\" title=\"Raspberry Pi\u3067I2C\u3092\u4f7f\u3046 - Python\u3067I2C\u3092\u4f7f\u3046\u65b9\u6cd5\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/GSmq8ZH01Sg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n<div class=\"shariff shariff-align-center shariff-widget-align-left shariff-buttonstretch\"><ul class=\"shariff-buttons theme-white orientation-horizontal buttonsize-medium\"><li class=\"shariff-button twitter shariff-nocustomcolor\" style=\"background-color:#595959\"><a href=\"https:\/\/twitter.com\/share?url=https%3A%2F%2Fpicockpit.com%2Fraspberry-pi%2Fja%2Fi2c%25e3%2582%25a4%25e3%2583%25b3%25e3%2582%25bf%25e3%2583%25bc%25e3%2582%25a4%25e3%2583%25b3%25e3%2583%2586%25e3%2582%25b0%25e3%2583%25ac%25e3%2583%25bc%25e3%2583%2586%25e3%2583%2583%25e3%2583%2589%25e3%2582%25b5%25e3%2583%25bc%25e3%2582%25ad%25e3%2583%2583%25e3%2583%2588%25e3%2583%2590%25e3%2582%25b9%2F&text=I2C%20%E2%80%93%20The%20Inter-Integrated%20Circuit%20Bus\" title=\"X\u3067\u5171\u6709\u3059\u308b\" 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