{"id":13541,"date":"2017-05-26T20:08:52","date_gmt":"2017-05-27T00:08:52","guid":{"rendered":"http:\/\/embedded-lab.com\/blog\/?p=13541"},"modified":"2017-05-26T20:08:52","modified_gmt":"2017-05-27T00:08:52","slug":"esp8266-volumeter","status":"publish","type":"post","link":"https:\/\/embedded-lab.com\/blog\/esp8266-volumeter\/","title":{"rendered":"ESP8266 volumeter"},"content":{"rendered":"<p>This <strong><a href=\"https:\/\/github.com\/SEyU\/smart-volumeter\" target=\"_blank\">ESP8266-based IoT volumeter<\/a><\/strong> measures the volume of an open space inside an enclosure using ultrasonic sensors. Three HC-SR04 ultrasonic transceivers are placed orthogonally to measure distances (width, height and lenght) along the three directions to compute the volume. The measurements are\u00a0sent to the CloudMQTT server and displayed as graph.<\/p>\n<div id=\"attachment_13542\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2017\/05\/vol1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-13542\" class=\"size-full wp-image-13542\" src=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2017\/05\/vol1.jpg\" alt=\"ESP8266 smart volumeter\" width=\"800\" height=\"451\" srcset=\"https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2017\/05\/vol1.jpg 800w, https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2017\/05\/vol1-580x327.jpg 580w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><p id=\"caption-attachment-13542\" class=\"wp-caption-text\">ESP8266 smart volumeter<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>This ESP8266-based IoT volumeter measures the volume of an open space inside an enclosure using ultrasonic sensors. Three HC-SR04 ultrasonic transceivers are placed orthogonally to measure distances (width, height and lenght) along the three directions to compute the volume. The measurements are\u00a0sent to the CloudMQTT server and displayed as graph.<\/p>\n","protected":false},"author":1,"featured_media":13542,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1044],"tags":[1667,1668],"class_list":["post-13541","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-esp8266","tag-esp8266-volumeter","tag-ultrasonic-sensors"],"_links":{"self":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/13541","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/comments?post=13541"}],"version-history":[{"count":1,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/13541\/revisions"}],"predecessor-version":[{"id":13543,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/13541\/revisions\/13543"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media\/13542"}],"wp:attachment":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media?parent=13541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/categories?post=13541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/tags?post=13541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}