{"id":257,"date":"2013-09-26T18:37:02","date_gmt":"2013-09-26T16:37:02","guid":{"rendered":"http:\/\/wordpress.callac.online\/index.php\/utilisation-dun-potentiometre\/"},"modified":"2022-01-05T22:41:57","modified_gmt":"2022-01-05T21:41:57","slug":"utilisation-dun-potentiometre","status":"publish","type":"page","link":"https:\/\/wordpress.callac.online\/index.php\/numerique\/arduino\/quelques-reperes\/utilisation-dun-potentiometre\/","title":{"rendered":"Utilisation d&rsquo;un potentiom\u00e8tre"},"content":{"rendered":"<p>Un potentiom\u00e8tre est une r\u00e9sistance variable.<\/p>\n<p>Elle poss\u00e8de trois pattes :<br \/>&#8211; les deux extr\u00eames permettent d&rsquo;avoir la r\u00e9sistance totale du potentiom\u00e8tre ;<br \/>&#8211; en prenant une des extr\u00eames et la patte du milieu, on obtient une r\u00e9sistance qui va varier entre 0 et la r\u00e9sistance totale du potentiom\u00e8tre.<\/p>\n<p>En pratique, on se servira du potentiom\u00e8tre pour obtenir une <strong>tension variable entre 0 et 5 volts<\/strong>. la valeur lue variera entre 0 et 1024.<\/p>\n<h2>Une simulation<\/h2>\n<p>On tourne le potentiom\u00e8tre et on voit la tension sur la patte centrale (diviseur de tensions).<\/p>\n<p>\u00a0<\/p>\n\n\n<figure><iframe loading=\"lazy\" width=\"725\" height=\"453\" src=\"https:\/\/www.tinkercad.com\/embed\/evPBuuZGT5Y?editbtn=1\"><\/iframe><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Un potentiom\u00e8tre est une r\u00e9sistance variable. Elle poss\u00e8de trois pattes :&#8211; les deux extr\u00eames permettent d&rsquo;avoir la r\u00e9sistance totale du potentiom\u00e8tre ;&#8211; en prenant une des extr\u00eames et la patte&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2542,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-257","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 d&#039;un potentiom\u00e8tre - 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-dun-potentiometre\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Utilisation d&#039;un potentiom\u00e8tre - Maths &amp; Num\u00e9rique\" \/>\n<meta property=\"og:description\" content=\"Un potentiom\u00e8tre est une r\u00e9sistance variable. 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