{"id":47802,"date":"2020-08-18T22:31:44","date_gmt":"2020-08-18T22:31:44","guid":{"rendered":"https:\/\/\/construire-des-reseaux-de-capteurs-i%c2%b2c-et-spi-connectes-a-distance\/"},"modified":"2020-08-18T22:31:44","modified_gmt":"2020-08-18T22:31:44","slug":"construire-des-reseaux-de-capteurs-i%c2%b2c-et-spi-connectes-a-distance","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/construire-des-reseaux-de-capteurs-i%c2%b2c-et-spi-connectes-a-distance\/","title":{"rendered":"Construire des r\u00e9seaux de capteurs I\u00b2C et SPI connect\u00e9s \u00e0 distance"},"content":{"rendered":"<p>De nos jours, la plupart des concepteurs utilisent des interfaces s\u00e9rie pour connecter des capteurs distants dans le cadre d&rsquo;applications industrielles ou de t\u00e9l\u00e9surveillance. Cependant, les protocoles les plus populaires sont co\u00fbteux et complexes \u00e0 mettre en \u0153uvre car ils peuvent n\u00e9cessiter jusqu&rsquo;\u00e0 cinq commutateurs d&rsquo;extension pour atteindre un dispositif distant de 100 m\u00e8tres. En outre, certaines interfaces couramment d\u00e9ploy\u00e9es aujourd&rsquo;hui n\u00e9cessitent 6 fils pour connecter plusieurs capteurs distants \u00e0 un microcontr\u00f4leur h\u00f4te. En s&rsquo;appuyant sur le protocole 1-Wire de Maxim Integrated pour s&rsquo;interfacer avec les capteurs compatibles I2C et SPI, le DS28E18 r\u00e9duit la complexit\u00e9 en connectant les dispositifs \u00e0 l&rsquo;aide de deux fils seulement, par opposition aux solutions concurrentes qui ont besoin de quatre fils pour I2C et de six fils pour SPI.<\/p>\n<p>Le DS28E18 permet d\u2019avoir l&rsquo;alimentation et les communications sur un seul fil, en utilisant le protocole 1-Wire de Maxim Integrated pour connecter des p\u00e9riph\u00e9riques I2C ou SPI sur plus de 100 m\u00e8tres \u00e0 l&rsquo;aide de deux fils seulement. Cette solution permet d&rsquo;\u00e9liminer jusqu&rsquo;\u00e0 cinq circuits int\u00e9gr\u00e9s d&rsquo;extension et de commutation, ce qui r\u00e9duit consid\u00e9rablement les co\u00fbts de connexion et la complexit\u00e9 des logiciels. En outre, un seul port E\/S programmable du microcontr\u00f4leur h\u00f4te permet de g\u00e9rer un r\u00e9seau de 10 \u00e0 20 n\u0153uds.<\/p>\n<p><a href=\"https:\/\/maxim.click\/DS28E18_Product_FR\">maxim.click\/DS28E18_Product_FR<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les concepteurs qui ont besoin d\u2019\u00e9tendre les connexions r\u00e9seau de capteurs \u00e0 distance peuvent d\u00e9sormais r\u00e9duire la complexit\u00e9 et profiter des co\u00fbts les plus bas du march\u00e9, gr\u00e2ce au pont 1-Wire-to-I2C\/SPI, DS28E18, de Maxim Integrated Products, Inc. <\/p>\n","protected":false},"author":9,"featured_media":47803,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-47802","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Construire des r\u00e9seaux de capteurs I\u00b2C et SPI connect\u00e9s \u00e0 d...<\/title>\n<meta name=\"description\" content=\"Les concepteurs qui ont besoin d\u2019\u00e9tendre les connexions r\u00e9seau de capteurs \u00e0 distance peuvent d\u00e9sormais r\u00e9duire la complexit\u00e9 et profiter des co\u00fbts...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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