{"id":255,"date":"2013-09-26T17:19:59","date_gmt":"2013-09-26T15:19:59","guid":{"rendered":"http:\/\/wordpress.callac.online\/index.php\/utilisation-des-led\/"},"modified":"2022-01-05T22:41:57","modified_gmt":"2022-01-05T21:41:57","slug":"utilisation-des-led","status":"publish","type":"page","link":"https:\/\/wordpress.callac.online\/index.php\/numerique\/arduino\/quelques-reperes\/utilisation-des-led\/","title":{"rendered":"Utilisation des LED"},"content":{"rendered":"<p>Juste quelques rappels sur l&rsquo;utilisation des LED.<\/p>\n<p>&#8211; On branche la patte la plus longue (anode) du c\u00f4t\u00e9 positif.<br \/>&#8211; On limite le courant en la branchant en s\u00e9rie avec une r\u00e9sistance de quelques centaines d&rsquo;ohms.<\/p>\n<h2>Simulation<\/h2>\n<p>Comment choisir la r\u00e9sistance ?<\/p>\n<p>On lance la simulation puis on clique sur la r\u00e9sistance. On peut alors changer sa valeur. Si la valeur est trop petite, on voit que la led \u00ab\u00a0grille\u00a0\u00bb. Sinon, la tension aux bornes de la led varie peu. En conclusion, quelques centaines d&rsquo;ohms suffisent.<\/p>\n<p>\u00a0<\/p>\n\n\n<figure><iframe loading=\"lazy\" width=\"725\" height=\"453\" src=\"https:\/\/www.tinkercad.com\/embed\/0VzEjRZXNFU?editbtn=1\"><\/iframe><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Juste quelques rappels sur l&rsquo;utilisation des LED. &#8211; On branche la patte la plus longue (anode) du c\u00f4t\u00e9 positif.&#8211; On limite le courant en la branchant en s\u00e9rie avec une&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2542,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-255","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Utilisation des LED - Maths &amp; Num\u00e9rique<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/wordpress.callac.online\/index.php\/numerique\/arduino\/quelques-reperes\/utilisation-des-led\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Utilisation des LED - Maths &amp; 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