{"id":174,"date":"2010-01-16T00:38:55","date_gmt":"2010-01-15T23:38:55","guid":{"rendered":"http:\/\/www.k2site.pl\/?p=174"},"modified":"2010-01-16T00:44:56","modified_gmt":"2010-01-15T23:44:56","slug":"work-in-progress","status":"publish","type":"post","link":"http:\/\/www.k2site.pl\/?p=174","title":{"rendered":"Work in progress&#8230;"},"content":{"rendered":"<p>Cz\u0119sto na ro\u017cnych serwisach internetowych spotykam matryce LED&#8217;owe wy\u015bwietlaj\u0105ce animacje lub obrazki. Postanowi\u0142em sam zmierzy\u0107 si\u0119 z problemem obs\u0142ugi i wy\u015bwietlania obrazu na takiej matrycy. Efekty &#8222;na szybko&#8221; wida\u0107 na zdj\u0119ciu poni\u017cej.<br \/>\n<a href=\"http:\/\/www.k2site.pl\/?attachment_id=173\" rel=\"attachment wp-att-173\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.k2site.pl\/wp-content\/uploads\/2010\/01\/led_array.jpg\" alt=\"\" title=\"led_array\" width=\"550\" height=\"351\" class=\"alignnone size-full wp-image-173\" \/><\/a><br \/>\nJest to 64 diodowa dwu kolorowa (czerwony i zielony) matryca LED, sterowana za pomoc\u0105 mikrokontrolera PIC16F77. Katody di\u00f3d zwierane s\u0105 do masy za pomoc\u0105 uk\u0142adu ULN2803, a anody bezpo\u015brednio do jednego z port\u00f3w mikrokontrolera. Aby uzyska\u0107 obraz, kolejne kolumny zapalane s\u0105 co 2,5ms, po 20ms nast\u0119puje narysowanie ca\u0142ego obrazu. W ci\u0105gu sekundy obraz rysowany jest 50 razy (50hz), co powoduje \u017ce nie wida\u0107 migotania matrycy podczas prze\u0142\u0105czania kolumn. Poniewa\u017c diody zasilane s\u0105 impulsowo spada ich pob\u00f3r pr\u0105du. W zwi\u0105zki z tym warto\u015bci opornik\u00f3w ograniczaj\u0105cych pr\u0105d (330ohm) s\u0105 znacznie za du\u017ce przez co diody daj\u0105 bardzo blade \u015bwiat\u0142o.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cz\u0119sto na ro\u017cnych serwisach internetowych spotykam matryce LED&#8217;owe wy\u015bwietlaj\u0105ce animacje lub obrazki. Postanowi\u0142em sam zmierzy\u0107 si\u0119 z problemem obs\u0142ugi i wy\u015bwietlania obrazu na takiej matrycy. Efekty &#8222;na szybko&#8221; wida\u0107 na zdj\u0119ciu poni\u017cej. Jest to 64 diodowa dwu kolorowa (czerwony i zielony) matryca LED, sterowana za pomoc\u0105 mikrokontrolera PIC16F77. Katody di\u00f3d zwierane s\u0105 do masy za [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,7],"tags":[],"class_list":["post-174","post","type-post","status-publish","format-standard","hentry","category-elektronika","category-programowanie"],"_links":{"self":[{"href":"http:\/\/www.k2site.pl\/index.php?rest_route=\/wp\/v2\/posts\/174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.k2site.pl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.k2site.pl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.k2site.pl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.k2site.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=174"}],"version-history":[{"count":21,"href":"http:\/\/www.k2site.pl\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions"}],"predecessor-version":[{"id":195,"href":"http:\/\/www.k2site.pl\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions\/195"}],"wp:attachment":[{"href":"http:\/\/www.k2site.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.k2site.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=174"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.k2site.pl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}