{"id":9420,"date":"2014-10-27T21:12:26","date_gmt":"2014-10-28T01:12:26","guid":{"rendered":"http:\/\/embedded-lab.com\/blog\/?p=9420"},"modified":"2014-11-10T10:01:40","modified_gmt":"2014-11-10T15:01:40","slug":"chronodevfd-a-wearable-wrist-watch-with-vacuum-fluorescent-display","status":"publish","type":"post","link":"https:\/\/embedded-lab.com\/blog\/chronodevfd-a-wearable-wrist-watch-with-vacuum-fluorescent-display\/","title":{"rendered":"ChronodeVFD: A wearable wrist watch with vacuum fluorescent display"},"content":{"rendered":"<p>Vacuum Fluorescent Displays (VFD) are usually considered bulky, and are, therefore, mostly found in non-portable consumer-electronics gadgets such as DVD players, automobile audio system, and electric ranges. <a href=\"http:\/\/www.johngineer.com\/blog\/?p=1595\" target=\"_blank\"><strong>Johngineer&#8217;s ChronodeVFD<\/strong><\/a> is an exception to that. He used them to construct a wearable wrist watch. The ChronodeVFD uses\u00a0the IVL2-7\/5 VFD display tube controlled by the\u00a0Maxim MAX6920 chip, which is a\u00a012-bit output, 76V, vacuum fluorescent display (VFD) tube driver.<\/p>\n<p>The core of the project is the ATMega88 microcontroller and\u00a0the DS3231 RTC chip. His design also includes an analog light sensor,\u00a0a BMP180 barometric\/temperature sensor and a MMA8653 accelerometer. The finished watch is powered by one AA alkaline battery, which lasts for 6-10 hours.<\/p>\n<div id=\"attachment_9421\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/embedded-lab.com\/blog\/?attachment_id=9421\" rel=\"attachment wp-att-9421\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-9421\" class=\"size-full wp-image-9421\" alt=\"as\" src=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2014\/10\/watch.jpg\" width=\"580\" height=\"450\" srcset=\"https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2014\/10\/watch.jpg 580w, https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2014\/10\/watch-550x426.jpg 550w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/a><p id=\"caption-attachment-9421\" class=\"wp-caption-text\">ChronodeVFD wrist watch<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Vacuum Fluorescent Displays (VFD) are usually considered bulky, and are, therefore, mostly found in non-portable consumer-electronics gadgets such as DVD players, automobile audio system, and electric ranges. Johngineer&#8217;s ChronodeVFD is an exception to that. He used them to construct a wearable wrist watch. The ChronodeVFD uses\u00a0the IVL2-7\/5 VFD display tube controlled by the\u00a0Maxim MAX6920 chip, which is a\u00a012-bit output, 76V, vacuum fluorescent display (VFD) tube driver. The core of the project is the ATMega88 microcontroller and\u00a0the DS3231 RTC chip. His design also includes an analog light sensor,\u00a0a BMP180 barometric\/temperature sensor and a MMA8653 accelerometer. The finished watch is powered by<\/p>\n","protected":false},"author":1,"featured_media":9421,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[975,973,974,766],"class_list":["post-9420","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-avr-projects","tag-atmega88","tag-electronic-watch","tag-vfd-display","tag-wrist-watch"],"_links":{"self":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/9420","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=9420"}],"version-history":[{"count":2,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/9420\/revisions"}],"predecessor-version":[{"id":9423,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/9420\/revisions\/9423"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media\/9421"}],"wp:attachment":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media?parent=9420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/categories?post=9420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/tags?post=9420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}