{"id":54,"date":"2012-06-30T14:56:25","date_gmt":"2012-06-30T14:56:25","guid":{"rendered":"http:\/\/www.burningimage.net\/clock\/?p=54"},"modified":"2023-07-22T06:53:11","modified_gmt":"2023-07-22T06:53:11","slug":"does-it-still-work","status":"publish","type":"post","link":"https:\/\/www.burningimage.net\/clock\/does-it-still-work\/","title":{"rendered":"Does it still work&#8230;?"},"content":{"rendered":"<p>Spurred on by the fact that there&#8217;s a <a href=\"http:\/\/en.wikipedia.org\/wiki\/Leap_second\" target=\"_blank\" rel=\"noopener\">leap second<\/a>&nbsp;tonight, I thought I&#8217;d get the clock out and see if it still worked.<\/p>\n<p>Initially it wasn&#8217;t looking great &#8211; the parity checks were failing&#8230;<\/p>\n<p><a href=\"https:\/\/www.burningimage.net\/clock\/wp-content\/IMAG0086.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-55\" title=\"Parity Fail\" alt=\"\" src=\"https:\/\/www.burningimage.net\/clock\/wp-content\/IMAG0086-225x300.jpg\" width=\"225\" height=\"300\" srcset=\"https:\/\/www.burningimage.net\/clock\/wp-content\/IMAG0086-225x300.jpg 225w, https:\/\/www.burningimage.net\/clock\/wp-content\/IMAG0086-768x1024.jpg 768w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a><\/p>\n<p>&#8230;.but after a bit of tweaking on the pots&#8230;..<\/p>\n<p><a href=\"https:\/\/www.burningimage.net\/clock\/wp-content\/IMAG0088.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-57\" title=\"Clock Working\" alt=\"\" src=\"https:\/\/www.burningimage.net\/clock\/wp-content\/IMAG0088-225x300.jpg\" width=\"225\" height=\"300\" srcset=\"https:\/\/www.burningimage.net\/clock\/wp-content\/IMAG0088-225x300.jpg 225w, https:\/\/www.burningimage.net\/clock\/wp-content\/IMAG0088-768x1024.jpg 768w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a><\/p>\n<p>Hurrah! Of course it still works!<\/p>\n<p>I may be tempted to make a much improved version. &nbsp;Perhaps on a PCB, using a 60 kHz crystal filter in order to get rid of the noise, and utilising the PIC comparator, rather than a couple of external op-amps&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Spurred on by the fact that there&#8217;s a leap second&nbsp;tonight, I thought I&#8217;d get the clock out and see if it still worked. Initially it wasn&#8217;t looking great &#8211; the parity checks were failing&#8230; &#8230;.but after a bit of tweaking on the pots&#8230;.. Hurrah! Of course it still works! I may be tempted to make [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-54","post","type-post","status-publish","format-standard","hentry","category-update"],"_links":{"self":[{"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/posts\/54","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/comments?post=54"}],"version-history":[{"count":5,"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/posts\/54\/revisions"}],"predecessor-version":[{"id":92,"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/posts\/54\/revisions\/92"}],"wp:attachment":[{"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/media?parent=54"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/categories?post=54"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.burningimage.net\/clock\/wp-json\/wp\/v2\/tags?post=54"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}