{"id":2739,"date":"2023-02-14T02:45:26","date_gmt":"2023-02-13T17:45:26","guid":{"rendered":"https:\/\/mirror.boy.jp\/?p=2739"},"modified":"2023-02-14T02:45:28","modified_gmt":"2023-02-13T17:45:28","slug":"m5stickcplus-%e3%81%aespiffs%e9%a0%98%e5%9f%9f%ef%bc%88%e5%86%85%e9%83%a8%e3%83%95%e3%83%a9%e3%83%83%e3%82%b7%e3%83%a5%ef%bc%89%e3%82%92%e6%89%b1%e3%81%86%e3%82%b7%e3%83%b3%e3%83%97%e3%83%ab%e3%81%aa","status":"publish","type":"post","link":"https:\/\/mirror.boy.jp\/?p=2739","title":{"rendered":"#M5StickCPlus \u306eSPIFFS\u9818\u57df\uff08\u5185\u90e8\u30d5\u30e9\u30c3\u30b7\u30e5\uff09\u3092\u6271\u3046\u30b7\u30f3\u30d7\u30eb\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9 #Arduino"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">M5StickCPlus\u306b\u306f\u6a19\u6e96\u3067SD\u30ab\u30fc\u30c9\u306a\u3057<\/h1>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"797\" height=\"540\" src=\"https:\/\/mirror.boy.jp\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-14-at-2.31.33.jpg\" alt=\"\" class=\"wp-image-2740\" srcset=\"https:\/\/mirror.boy.jp\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-14-at-2.31.33.jpg 797w, https:\/\/mirror.boy.jp\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-14-at-2.31.33-400x271.jpg 400w, https:\/\/mirror.boy.jp\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-14-at-2.31.33-768x520.jpg 768w\" sizes=\"(max-width: 797px) 100vw, 797px\" \/><\/figure>\n\n\n\n<p>\u30bb\u30f3\u30b7\u30f3\u30b0\u3057\u305f\u30c7\u30fc\u30bf\u306a\u3069\u3092\u96fb\u6e90\u304c\u5207\u308c\u3066\u3082\u4fdd\u5b58\u3057\u3066\u304a\u304f\u305f\u3081\u306e\u30c7\u30fc\u30bf\u4fdd\u5b58\u306b\u3064\u3044\u3066\u3002M5Stack\u306b\u306fSD\u30ab\u30fc\u30c9\u304c\u4f7f\u3048\u308b\u3088\u3046\u3067\u3059\u304c\u3001M5StickCPlus\u306b\u306f\u6b8b\u5ff5\u306a\u304c\u3089\u6a19\u6e96\u3067\u306f\u4ed8\u3044\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"ja\" dir=\"ltr\">M5StickCPlus SD\u30ab\u30fc\u30c9\u6a19\u6e96\u5bfe\u5fdc\u3057\u3066\u306a\u3044\u3051\u3069\u30c7\u30fc\u30bf\u4fdd\u5b58\u3067\u304d\u308b\u9818\u57df\u3042\u308b\u306e\u304b <a onclick=\"javascript:pageTracker._trackPageview('\/outgoing\/t.co\/erJy963u4U');\"  href=\"https:\/\/t.co\/erJy963u4U\">https:\/\/t.co\/erJy963u4U<\/a><\/p>&mdash; mirrorboy (@mirrorboy) <a onclick=\"javascript:pageTracker._trackPageview('\/outgoing\/twitter.com\/mirrorboy\/status\/1623755935494848513?ref_src=twsrc%5Etfw');\"  href=\"https:\/\/twitter.com\/mirrorboy\/status\/1623755935494848513?ref_src=twsrc%5Etfw\">February 9, 2023<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p>\u8abf\u3079\u308b\u3068SPIFFS\u3068\u3044\u3046\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306e\u4e00\u90e8\u3092\u4f7f\u3048\u308b\u4e8b\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002\u4e0a\u8a18\u306e\u30b5\u30a4\u30c8\u306a\u3069\u3092\u53c2\u8003\u306b\u3055\u305b\u3066\u9802\u304d\u3064\u3064\u3001\u5206\u304b\u308a\u306b\u304f\u304b\u3063\u305f\u3068\u3053\u308d\u306b\u30b3\u30e1\u30f3\u30c8\u3084Serial.print\u5165\u308c\u307e\u304f\u3063\u3066\u81ea\u5206\u306a\u308a\u306b\u6574\u7406\u3057\u305f\u3082\u306e\u3092\u7f6e\u3044\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9 SPIFFS_Sample.ino<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;M5StickCPlus.h>\n#include \"FS.h\"\n#include \"SPIFFS.h\"\n\nconst char *FILE_PATH = \"\/log.txt\"; \/\/\u30c6\u30ad\u30b9\u30c8\u4fdd\u5b58\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u540d\nconst char *INIT_STR = \"\"; \/\/\u521d\u671f\u5316\u3059\u308b\u30c6\u30ad\u30b9\u30c8;\n\nvoid readFile() {\n\n  File file = SPIFFS.open(FILE_PATH, \"r\");\n  if (!file || file.isDirectory()) {\n    Serial.printf(\"Failed to open file for reading: %s\\r\\n\", FILE_PATH);\n    return;\n  } else {\n    Serial.printf(\"Success to open file for reading: %s\\r\\n\", FILE_PATH);\n  }\n\n  Serial.println(\"\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/READ START\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\");\n\n  while (file.available()) {\n    Serial.write(file.read());\n  }\n\n  Serial.println(\"\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/READ END\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\");\n\n  file.close();\n}\n\nvoid removeFile() {\n\n  \/\/\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3059\u308c\u3070\u30ea\u30e0\u30fc\u30d6\u3067\u304d\u308b\n  if (SPIFFS.remove(FILE_PATH)) {\n\n    \/\/Serial.println(\"Remove success.\");\n    Serial.printf(\"Remove success: %s\\r\\n\", FILE_PATH);\n  } else {\n\n    Serial.printf(\"Remove failed. Not available.: %s\\r\\n\", FILE_PATH);\n  };\n}\n\nvoid writeFile(const char *str) {\n  File file = SPIFFS.open(FILE_PATH, FILE_APPEND);\n\n  if (!file) {\n    Serial.printf(\"Failed to open file for appending.: %s\\r\\n\", FILE_PATH);\n    return;\n  } else {\n\n    Serial.printf(\"Success to open file for appending.: %s\\r\\n\", FILE_PATH);    \n\n    if (file.print(str)) {\n\n      Serial.printf(\"File writen: %s\\r\\n\", str);\n\n    } else {\n\n      Serial.printf(\"File write failed: %s\\r\\n\", str);\n    }\n  }\n\n  Serial.print(\"File size:\");\n  Serial.println(file.size());\n\n  file.close();\n}\n\n\nvoid resetFile() {\n\n  removeFile();\n  writeFile(INIT_STR);\n}\n\n\nvoid setup() {\n\n  M5.begin();\n\n  if (!SPIFFS.begin(true)) {\n    Serial.println(\"SPIFFS Mount Failed\");\n    return;\n  } else {\n    Serial.println(\"SPIFFS Mount Success\");\n  }\n\n  resetFile();\n  writeFile(\"Test\\r\\n\");\n  writeFile(\"Test2\\r\\n\");\n  writeFile(\"139.85289,135.7654\\r\\n\");\n  readFile();\n  readFile();\n}\n\nvoid loop() {\n \n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>M5StickCPlus\u306b\u306f\u6a19\u6e96\u3067SD\u30ab\u30fc\u30c9\u306a\u3057 \u30bb\u30f3\u30b7\u30f3\u30b0\u3057\u305f\u30c7\u30fc\u30bf\u306a\u3069\u3092\u96fb\u6e90\u304c\u5207\u308c\u3066\u3082\u4fdd\u5b58\u3057\u3066\u304a\u304f\u305f\u3081\u306e\u30c7\u30fc\u30bf\u4fdd\u5b58\u306b\u3064\u3044\u3066\u3002M5Stack\u306b\u306fSD\u30ab\u30fc\u30c9\u304c\u4f7f\u3048\u308b\u3088\u3046\u3067\u3059\u304c\u3001M5StickCPlus\u306b\u306f\u6b8b\u5ff5\u306a\u304c\u3089\u6a19\u6e96\u3067 &hellip; <a href=\"https:\/\/mirror.boy.jp\/?p=2739\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">#M5StickCPlus \u306eSPIFFS\u9818\u57df\uff08\u5185\u90e8\u30d5\u30e9\u30c3\u30b7\u30e5\uff09\u3092\u6271\u3046\u30b7\u30f3\u30d7\u30eb\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9 #Arduino<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49,8,131],"tags":[],"_links":{"self":[{"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/posts\/2739"}],"collection":[{"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2739"}],"version-history":[{"count":3,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/posts\/2739\/revisions"}],"predecessor-version":[{"id":2743,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/posts\/2739\/revisions\/2743"}],"wp:attachment":[{"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2739"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}