{"id":9146,"date":"2014-09-17T22:06:46","date_gmt":"2014-09-18T02:06:46","guid":{"rendered":"http:\/\/embedded-lab.com\/blog\/?p=9146"},"modified":"2014-09-17T22:06:46","modified_gmt":"2014-09-18T02:06:46","slug":"diy-tachometer-using-optical-sensing","status":"publish","type":"post","link":"https:\/\/embedded-lab.com\/blog\/diy-tachometer-using-optical-sensing\/","title":{"rendered":"DIY tachometer using optical sensing"},"content":{"rendered":"<p>This <a href=\"http:\/\/www.instructables.com\/id\/Measure-RPM-DIY-Portable-Digital-Tachometer\/\" target=\"_blank\"><strong>DIY tachometer<\/strong><\/a> uses optical sensing to compute the rotational speed of a rotating object and displays the speed on an LCD display. It is Arduino-based project and can measure RPM over 20K.<\/p>\n<div id=\"attachment_9147\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/embedded-lab.com\/blog\/?attachment_id=9147\" rel=\"attachment wp-att-9147\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-9147\" class=\"size-full wp-image-9147\" alt=\"Digital tachometer\" src=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2014\/09\/tachometer.jpg\" width=\"580\" height=\"437\" srcset=\"https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2014\/09\/tachometer.jpg 580w, https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2014\/09\/tachometer-550x414.jpg 550w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/a><p id=\"caption-attachment-9147\" class=\"wp-caption-text\">Digital tachometer<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>This DIY tachometer uses optical sensing to compute the rotational speed of a rotating object and displays the speed on an LCD display. It is Arduino-based project and can measure RPM over 20K.<\/p>\n","protected":false},"author":1,"featured_media":9147,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[150],"tags":[885,55],"class_list":["post-9146","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino-2","tag-ir-sensor","tag-tachometer"],"_links":{"self":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/9146","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=9146"}],"version-history":[{"count":1,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/9146\/revisions"}],"predecessor-version":[{"id":9148,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/9146\/revisions\/9148"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media\/9147"}],"wp:attachment":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media?parent=9146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/categories?post=9146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/tags?post=9146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}