{"id":4073,"date":"2012-09-03T08:21:34","date_gmt":"2012-09-03T15:21:34","guid":{"rendered":"http:\/\/rustybolt.info\/wordpress\/?p=4073"},"modified":"2012-09-09T23:40:20","modified_gmt":"2012-09-10T06:40:20","slug":"2012-09-03-2","status":"publish","type":"post","link":"https:\/\/rustybolt.info\/wordpress\/?p=4073","title":{"rendered":"2012-09-03 Alphanumeric LED Display"},"content":{"rendered":"<p>I pulled these Siemens DL 2416 from an old PBX.\u00a0 They are seated into an 18 pin right angle adapter that reduces the size down to the standard 0.3 inch wide pattern.\u00a0 I found the datasheet for these online.<a href=\"http:\/\/rustybolt.info\/wordpress\/?attachment_id=4092\" rel=\"attachment wp-att-4092\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-4092\" title=\"DSC_0170S2\" src=\"http:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2012\/09\/DSC_0170S2-300x222.jpg\" alt=\"\" width=\"300\" height=\"222\" srcset=\"https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2012\/09\/DSC_0170S2-300x222.jpg 300w, https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2012\/09\/DSC_0170S2.jpg 805w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 Each character of the four character display consists of small segments of red LEDs. There is a decoder on the display, so it&#8217;s just a matter of feeding the display characters.\u00a0 More on this in the datasheet (PDF)<a href=\"http:\/\/rustybolt.info\/wordpress\/?attachment_id=4093\" rel=\"attachment wp-att-4093\">DL2416T<\/a>.<\/p>\n<p>I did a Google search for it and I saw something about this display and Arduino, so check out the search hits to see what&#8217;s out there.\u00a0 Maybe there&#8217;s free software out there for it.<\/p>\n<p>Seems that nowadays no one wants to mess with LED displays because they are power hungry compared to the LCD displays.\u00a0 That&#8217;s true, but the LED displays can be used in line powered equipment without being detrimental.\u00a0 Obviously we can&#8217;t compare these to a full color LCD display like we find even in the cheapest cell phones.\u00a0 But they can display a good set of characters &#8211; see the datasheet.\u00a0 Two of these have a total of 8 characters, but the characters can be scrolled in software, so a whole line can be displayed slowly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I pulled these Siemens DL 2416 from an old PBX.\u00a0 They are seated into an 18 pin right angle adapter that reduces the size down to the standard 0.3 inch wide pattern.\u00a0 I found the datasheet for these online.\u00a0 Each character of the four character display consists of small segments of red LEDs. There is<a href=\"https:\/\/rustybolt.info\/wordpress\/?p=4073\"> <\/p>\n<p> (Read More&#8230;)<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[99],"tags":[],"class_list":["post-4073","post","type-post","status-publish","format-standard","hentry","category-optoelectronics"],"_links":{"self":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4073"}],"version-history":[{"count":11,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4073\/revisions"}],"predecessor-version":[{"id":4101,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4073\/revisions\/4101"}],"wp:attachment":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}