{"id":161,"date":"2021-08-07T18:37:00","date_gmt":"2021-08-07T18:37:00","guid":{"rendered":"https:\/\/www.jeskevic.info\/?p=161"},"modified":"2021-08-14T17:45:04","modified_gmt":"2021-08-14T17:45:04","slug":"flat-iron-for-pcb-soldering-wip","status":"publish","type":"post","link":"https:\/\/www.jeskevic.info\/?p=161","title":{"rendered":"Flat Iron for PCB soldering (WIP)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">My VFD demonstrator (on-table clock) is almost ready<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"766\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-2-1024x766.png\" alt=\"\" class=\"wp-image-164 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-2-1024x766.png 1024w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-2-300x224.png 300w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-2-768x575.png 768w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-2-1536x1149.png 1536w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-2-2048x1532.png 2048w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-2-1568x1173.png 1568w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/766;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">I plan to add BME280 for temperature\/RH\/pressure measurement&#8230;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But Flat-Iron soldering plate project takes my mind&#8230; I started from smaller things, like HD44780, and was surprised, how crapy some libraries are&#8230; <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I&#8217;ve checked first, older one, and this was horrible. A lot of peaks, long transmission (3.5ms!)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"670\" height=\"417\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-3.png\" alt=\"\" class=\"wp-image-165 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-3.png 670w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-3-300x187.png 300w\" data-sizes=\"(max-width: 670px) 100vw, 670px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 670px; --smush-placeholder-aspect-ratio: 670\/417;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">So I&#8217;ve found <a href=\"https:\/\/github.com\/4ilo\/HD44780-Stm32HAL\" data-type=\"URL\" data-id=\"https:\/\/github.com\/4ilo\/HD44780-Stm32HAL\">newer one<\/a> (with HAL (I think it is okay)), and it had also horrible timings (short delays are too long, and long delays are too short&#8230;)<\/p>\n\n\n\n<!--more-->\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"430\" height=\"204\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-1.png\" alt=\"\" class=\"wp-image-163 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-1.png 430w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-1-300x142.png 300w\" data-sizes=\"(max-width: 430px) 100vw, 430px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 430px; --smush-placeholder-aspect-ratio: 430\/204;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A bit more debugging, a bit more tuning, also datasheet info, and voila!<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"741\" height=\"419\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-4.png\" alt=\"\" class=\"wp-image-166 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-4.png 741w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-4-300x170.png 300w\" data-sizes=\"(max-width: 741px) 100vw, 741px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 741px; --smush-placeholder-aspect-ratio: 741\/419;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">It may be pushed a bit further, but I&#8217;m okay with this.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aaaaand, some tests with PWM&#8230; Result: not great, not terrible. A lot of tuning ahead!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"766\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-6-1024x766.png\" alt=\"\" class=\"wp-image-168 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-6-1024x766.png 1024w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-6-300x224.png 300w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-6-768x575.png 768w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-6-1536x1149.png 1536w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-6-2048x1532.png 2048w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-6-1568x1173.png 1568w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/766;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">And also walking in the city today<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"766\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-5-1024x766.png\" alt=\"\" class=\"wp-image-167 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-5-1024x766.png 1024w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-5-300x224.png 300w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-5-768x575.png 768w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-5-1536x1149.png 1536w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-5-2048x1532.png 2048w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/08\/image-5-1568x1173.png 1568w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/766;\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>My VFD demonstrator (on-table clock) is almost ready I plan to add BME280 for temperature\/RH\/pressure measurement&#8230; But Flat-Iron soldering plate project takes my mind&#8230; I started from smaller things, like HD44780, and was surprised, how crapy some libraries are&#8230; I&#8217;ve checked first, older one, and this was horrible. A lot of peaks, long transmission (3.5ms!) &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.jeskevic.info\/?p=161\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Flat Iron for PCB soldering (WIP)&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[39,6],"class_list":["post-161","post","type-post","status-publish","format-standard","hentry","category-electro","tag-flatiron","tag-vfd","entry"],"_links":{"self":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts\/161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=161"}],"version-history":[{"count":2,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts\/161\/revisions"}],"predecessor-version":[{"id":185,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts\/161\/revisions\/185"}],"wp:attachment":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}