{"id":1932,"date":"2018-07-04T13:18:24","date_gmt":"2018-07-04T04:18:24","guid":{"rendered":"http:\/\/research.itplants.com\/?p=1932"},"modified":"2018-08-15T12:49:03","modified_gmt":"2018-08-15T03:49:03","slug":"ccs811","status":"publish","type":"post","link":"https:\/\/research.itplants.com\/?p=1932","title":{"rendered":"CCS811"},"content":{"rendered":"<p>CCS811\u306f\u3001VOC(\u63ee\u767a\u6027\u6709\u6a5f\u7269\uff09\u304c\u6e2c\u5b9a\u3067\u304d\u308bI2C\u30bb\u30f3\u30b5\u3067\u3059\u3002\u30bb\u30f3\u30b5\u30fc\u306e\u5fdc\u7b54\u901f\u5ea6\u306f\u9045\u304f\u30011\u79d2\u306b1\u56de\u306e\u8aad\u307f\u51fa\u3057\u304c\u6700\u9ad8\u901f\u5ea6\u3067\u3059\u30021\u5206\u306b\uff11\u56de\u306e\u5272\u5408\u3067\u6e2c\u5b9a\u3059\u308b\u30e2\u30fc\u30c9\u3082\u3042\u308a\u307e\u3059\u3002\u65e9\u304f\u8aad\u307f\u51fa\u305d\u3046\u3068\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u304c\u6e96\u5099\u3067\u304d\u3066\u3044\u306a\u3044\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u8fd4\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/4fbb93339d21ddeed4fe742df3792215.jpg\" data-rel=\"lightbox-image-0\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-1933\" src=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/4fbb93339d21ddeed4fe742df3792215.jpg\" alt=\"\" width=\"327\" height=\"321\" srcset=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/4fbb93339d21ddeed4fe742df3792215.jpg 327w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/4fbb93339d21ddeed4fe742df3792215-300x294.jpg 300w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/4fbb93339d21ddeed4fe742df3792215-320x314.jpg 320w\" sizes=\"(max-width: 327px) 100vw, 327px\" \/><\/a>WAK\u306fGND\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002RST\u3068ADD\u306f\u3001\u4f55\u3082\u3064\u306a\u304c\u306a\u304f\u3066\u3082\u5927\u4e08\u592b\u3067\u3059\u3002VCC\u306b\u306f3.3V\u3092\u5165\u308c\u307e\u3059\u3002\u30a2\u30c9\u30ec\u30b9\u306f\u3001 0x5a\u3067\u8a8d\u8b58\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/38726f5fdb678a793516f87080cda435.jpg\" data-rel=\"lightbox-image-1\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-1935\" src=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/38726f5fdb678a793516f87080cda435.jpg\" alt=\"\" width=\"327\" height=\"143\" srcset=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/38726f5fdb678a793516f87080cda435.jpg 327w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/38726f5fdb678a793516f87080cda435-300x131.jpg 300w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/38726f5fdb678a793516f87080cda435-320x140.jpg 320w\" sizes=\"(max-width: 327px) 100vw, 327px\" \/><\/a><\/p>\n<p>Raspberry Pi\u306e\u30b3\u30fc\u30c9\u306f\u3001<a href=\"https:\/\/gist.github.com\/xxlukas42\/60ae08f75e68a0cfcdb7c9dd60145d34\">\u3053\u3053\u3092\u53c2\u8003\u306b\u3057\u307e\u3057\u305f<\/a>\u3002\u51fa\u529b\u306f\u3001\u3053\u3046\u306a\u308a\u307e\u3059\u3002I2C\u3078\u306e\u66f8\u8fbc\u307f\u3067\u30a8\u30e9\u30fc\u304c\u3088\u304f\u8d77\u304d\u305f\u306e\u3067\uff64try\u3092\u5165\u308c\u3066\u4f8b\u5916\u51e6\u7406\u3092\u5165\u308c\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u6e29\u5ea6\u3001\u6e7f\u5ea6\u306e\u8a08\u6e2c\u5024\u3067\u88dc\u6b63\u3059\u308b\u306e\u3067\u3001 BME280\u3067\u6e2c\u5b9a\u3057\u305f\u6e29\u5ea6\u3001\u6e7f\u5ea6\u3092\u4f7f\u3046\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><code>Time: 2018-07-04 13:06:57<br \/>\nTemp: 24.769929451 deg<br \/>\nHum: 62.1566918512 \nPress: 989.435114813 pascal<br \/>\nSetting compensation to 24.77 C and 62.16 \neCO2: 4327 ppm<br \/>\nTVOC: 598 ppb<\/code><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/DSC_0362.jpg\" data-rel=\"lightbox-image-2\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-1936\" src=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/DSC_0362.jpg\" alt=\"\" width=\"800\" height=\"530\" srcset=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/DSC_0362.jpg 800w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/DSC_0362-300x199.jpg 300w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/DSC_0362-768x509.jpg 768w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/DSC_0362-320x212.jpg 320w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a>\u30ed\u30fc\u30ba\u30de\u30ea\u30fc\u3092\u5207\u3063\u3066\u304d\u3066\u3001\u30d3\u30fc\u30ab\u30fc\u306b\u633f\u3057\u3066\u3001\u8449\u3063\u3071\u3092\u624b\u3067\u306a\u3067\u305f\u3068\u3053\u308d\u3001VOC\u5024\u304c\u8df3\u306d\u4e0a\u304c\u308a\u307e\u3057\u305f\u3002<\/p>\n<p><a href=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0c30ab61c0dda389847a8990f5f82f2a.jpg\" data-rel=\"lightbox-image-3\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-1937\" src=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0c30ab61c0dda389847a8990f5f82f2a.jpg\" alt=\"\" width=\"894\" height=\"717\" srcset=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0c30ab61c0dda389847a8990f5f82f2a.jpg 894w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0c30ab61c0dda389847a8990f5f82f2a-300x241.jpg 300w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0c30ab61c0dda389847a8990f5f82f2a-768x616.jpg 768w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0c30ab61c0dda389847a8990f5f82f2a-320x257.jpg 320w\" sizes=\"(max-width: 894px) 100vw, 894px\" \/><\/a><\/p>\n<p>\u4e0d\u601d\u8b70\u3067\u3059\u304c\u3001raw data\u3068base line\u306e\u5024\u304c\u3001VOC\u5024\u3068\u4f3c\u3066\u3044\u307e\u305b\u3093\u3002\u307e\u305f\u3001eCO2\u304cTVOC\u3068\u76f8\u4f3c\u3067\u3059\u3002\u6050\u3089\u304f\u3001TVOC\u5024\u304b\u3089\u3001eCO2\u5024\u3092\u7b97\u51fa\u3057\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u3002eCO2\u5024\u306f\u3001\u3042\u307e\u308a\u5f53\u3066\u306b\u306f\u3067\u304d\u305d\u3046\u306b\u3042\u308a\u307e\u305b\u3093\u3002TVOC\u5024\u304c\u3059\u3050\u306b\u4f4e\u4e0b\u3057\u3066\u304f\u308b\u306e\u3067\u3001\u30ed\u30fc\u30ba\u30de\u30ea\u30fc\u3092\u30dd\u30ea\u888b\u306b\u5165\u308c\u3066\u3001\u30bb\u30f3\u30b5\u30fc\u3082\u4e00\u7dd2\u306b\u5165\u308c\u3066\u3001\u30c6\u30fc\u30d7\u3067\u5bc6\u5c01\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><a href=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0517693170c3380649f7d8b1bfeae872.jpg\" data-rel=\"lightbox-image-4\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-1938\" src=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0517693170c3380649f7d8b1bfeae872.jpg\" alt=\"\" width=\"702\" height=\"541\" srcset=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0517693170c3380649f7d8b1bfeae872.jpg 702w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0517693170c3380649f7d8b1bfeae872-300x231.jpg 300w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/0517693170c3380649f7d8b1bfeae872-320x247.jpg 320w\" sizes=\"(max-width: 702px) 100vw, 702px\" \/><\/a><\/p>\n<p>TVOC\u5024\u304c\u9ad8\u3044\u307e\u307e\u3060\u308d\u3046\u3068\u601d\u3063\u305f\u306e\u3067\u3059\u304c\u3001\u5bc6\u5c01\u72b6\u614b\u3067\u3082TVOC\u5024\u306f\u4f4e\u4e0b\u3057\u3066\u304f\u308b\u3088\u3046\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u4f4e\u4e0b\u306e\u5ea6\u5408\u3044\u306f\u5c0f\u3055\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3067\u3001\u6b63\u3057\u304f\u6e2c\u308c\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u30dd\u30ea\u888b\u3092\u63fa\u3059\u3063\u3066\u307f\u307e\u3057\u305f\u3002\u5c11\u3057\u3060\u3051TVOC\u5024\u304c\u4e0a\u6607\u3057\u307e\u3057\u305f\u3002\u3055\u3089\u306b\u3001\u30dd\u30ea\u888b\u306e\u4e2d\u306ehappawomonndemimasita.TVOC\u5024\u306f\u6025\u6fc0\u306b\u4e0a\u6607\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><a href=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/e5ab1bb9e0313e7c8c5e574dda7365bb.jpg\" data-rel=\"lightbox-image-5\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-1942\" src=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/e5ab1bb9e0313e7c8c5e574dda7365bb.jpg\" alt=\"\" width=\"958\" height=\"666\" srcset=\"https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/e5ab1bb9e0313e7c8c5e574dda7365bb.jpg 958w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/e5ab1bb9e0313e7c8c5e574dda7365bb-300x209.jpg 300w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/e5ab1bb9e0313e7c8c5e574dda7365bb-768x534.jpg 768w, https:\/\/research.itplants.com\/wp\/wp-content\/uploads\/2018\/07\/e5ab1bb9e0313e7c8c5e574dda7365bb-320x222.jpg 320w\" sizes=\"(max-width: 958px) 100vw, 958px\" \/><\/a><\/p>\n<p>\u3084\u3063\u3071\u308a\u3001\u8449\u3063\u3071\u540c\u58eb\u304c\u7269\u7406\u7684\u306b\u63a5\u89e6\u3057\u306a\u3044\u3068TVOC\u5024\u306f\u4e0a\u6607\u3057\u306a\u3044\u3088\u3046\u3067\u3059\u306d\u3002\u690d\u7269\u3092\u690d\u3048\u3066\u3044\u305f\u5834\u5408\u306b\u306f\u3001\u690d\u7269\u306b\u9001\u98a8\u3057\u3066\u98a8\u3092\u5f53\u3066\u3066\u3001\u8449\u3063\u3071\u3092\u63fa\u3089\u305b\u3066\u3001\u4e92\u3044\u306b\u3076\u3064\u304b\u308a\u5408\u3046\u3088\u3046\u306b\u3057\u3066\u3084\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3055\u3082\u306a\u3051\u308c\u3070\u3001TVOC\u5024\u4e0a\u6607\u306f\u3001\u690d\u7269\u306e\u6210\u9577\u306b\u3088\u308b\u8449\u3063\u3071\u540c\u58eb\u306e\u63a5\u89e6\u6642\u306b\u3057\u304b\u8d77\u3053\u3089\u306a\u3044\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u672c\u6765\u306a\u3089\u3070\u3001\u5916\u6575\u3067\u3042\u308b\u6606\u866b\u306a\u3069\u304c\u3001\u8449\u3063\u3071\u306b\u53d6\u308a\u4ed8\u3044\u305f\u6642\u306bTVOC\u5024\u304c\u4e0a\u6607\u3059\u308b\u306f\u305a\u3067\u3059\u3002\u6606\u866b\u304c\u3044\u306a\u3051\u308c\u3070\u3001\u98a8\u304c\u5439\u3044\u305f\u3068\u304b\u3001\u830e\u3084\u8449\u3063\u3071\u304c\u4f38\u3073\u305f\u3068\u304b\u306e\u7406\u7531\u3067\u3001\u7269\u7406\u63a5\u89e6\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306bTVOC\u304c\u4e0a\u6607\u3059\u308b\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001Adafruit\u306b\u3088\u308b\u3068\u3001<\/p>\n<p>This sensor is not well supported on Raspberry Pi. This is because it uses I2C clock stretching which the Pi cannot do without drastically slowing down the I2C speed. CircuitPython and Arduino are supported.<\/p>\n<p>\u3068\u3044\u3046\u8a33\u3067\u3001Raspberry Pi\u306b\u306f\u5411\u3044\u3066\u3044\u306a\u3044\u3088\u3046\u3067\u3059\u3002Arudino\u3084ESP32\u3068\u304b\u3067\u4f7f\u3046\u306e\u304c\u3044\u3044\u307f\u305f\u3044\u3067\u3059\u3002<a href=\"https:\/\/raspberrypi.stackexchange.com\/questions\/74418\/pi-cannot-communicate-with-i2c-sensor\">\u3053\u3053\u306e\u60c5\u5831<\/a>\u304c\u53c2\u8003\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CCS811\u306f\u3001VOC(\u63ee\u767a\u6027\u6709\u6a5f\u7269\uff09\u304c\u6e2c\u5b9a\u3067\u304d\u308bI2C\u30bb\u30f3\u30b5\u3067\u3059\u3002\u30bb\u30f3\u30b5\u30fc\u306e\u5fdc\u7b54\u901f\u5ea6\u306f\u9045\u304f\u30011\u79d2\u306b1\u56de\u306e\u8aad\u307f\u51fa\u3057\u304c\u6700\u9ad8\u901f\u5ea6\u3067\u3059\u30021\u5206\u306b\uff11\u56de\u306e\u5272\u5408\u3067\u6e2c\u5b9a\u3059\u308b\u30e2\u30fc\u30c9\u3082\u3042\u308a\u307e\u3059\u3002\u65e9\u304f\u8aad\u307f\u51fa\u305d\u3046\u3068\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u304c\u6e96\u5099\u3067\u304d\u3066\u3044\u306a&#8230;<\/p>\n<p><a class=\"more\" href=\"https:\/\/research.itplants.com\/?p=1932\"> Read more &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":1933,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/research.itplants.com\/index.php?rest_route=\/wp\/v2\/posts\/1932"}],"collection":[{"href":"https:\/\/research.itplants.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/research.itplants.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/research.itplants.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/research.itplants.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1932"}],"version-history":[{"count":7,"href":"https:\/\/research.itplants.com\/index.php?rest_route=\/wp\/v2\/posts\/1932\/revisions"}],"predecessor-version":[{"id":2090,"href":"https:\/\/research.itplants.com\/index.php?rest_route=\/wp\/v2\/posts\/1932\/revisions\/2090"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/research.itplants.com\/index.php?rest_route=\/wp\/v2\/media\/1933"}],"wp:attachment":[{"href":"https:\/\/research.itplants.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/research.itplants.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/research.itplants.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}