{"id":3325,"date":"2022-10-15T16:33:28","date_gmt":"2022-10-15T14:33:28","guid":{"rendered":"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/"},"modified":"2022-10-15T17:05:08","modified_gmt":"2022-10-15T15:05:08","slug":"lectures-analogiques","status":"publish","type":"page","link":"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/","title":{"rendered":"Lectures analogiques"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">G\u00e9n\u00e9ralit\u00e9s<\/h3>\n\n\n\n<p>Seules les pattes <strong>GP26 (ADC(0)), GP27 (ADC(1)) et GP28 (ADC(2))<\/strong> acceptent les lectures analogiques.<\/p>\n\n\n\n<p>Par contre, ADC(4) est utilis\u00e9 pour mesurer la temp\u00e9rature \u00e0 prtir du capteur embarqu\u00e9 sur la carte Pico.<\/p>\n\n\n\n<p>La tension lue est convertie en une valeur num\u00e9rique (ADC : analogic to digital conversion).<\/p>\n\n\n\n<p>La tension \u00e0 la patte varie entre <strong>0 et 3.3V<\/strong> et la valeur lue varie entre <strong>0 et 65535<\/strong>.<\/p>\n\n\n\n<p>Pour la lecture, on utilise la fonction <strong>read_u16()<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Exemple<\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">from machine import ADC\n\nadc = ADC(4) #port de lecture de la temp\u00e9rature\n\nreading= adc.read_u16()  # lecture entre 0 et 65535\nvolts = reading*3.3\/65535 # tension entre 0 et 3.3V\ntemp = 27 - (volts - 0.706)\/0.001721 # temp\u00e9rature en C\nprint(f\"Temp\u00e9rature : {temp:.1f}\u00baC\")\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>G\u00e9n\u00e9ralit\u00e9s Seules les pattes GP26 (ADC(0)), GP27 (ADC(1)) et GP28 (ADC(2)) acceptent les lectures analogiques. Par contre, ADC(4) est utilis\u00e9 pour mesurer la temp\u00e9rature \u00e0 prtir du capteur embarqu\u00e9 sur&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3260,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3325","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>Lectures analogiques - 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\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lectures analogiques - Maths &amp; Num\u00e9rique\" \/>\n<meta property=\"og:description\" content=\"G\u00e9n\u00e9ralit\u00e9s Seules les pattes GP26 (ADC(0)), GP27 (ADC(1)) et GP28 (ADC(2)) acceptent les lectures analogiques. Par contre, ADC(4) est utilis\u00e9 pour mesurer la temp\u00e9rature \u00e0 prtir du capteur embarqu\u00e9 sur&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/\" \/>\n<meta property=\"og:site_name\" content=\"Maths &amp; Num\u00e9rique\" \/>\n<meta property=\"article:modified_time\" content=\"2022-10-15T15:05:08+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/\",\"url\":\"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/\",\"name\":\"Lectures analogiques - Maths &amp; Num\u00e9rique\",\"isPartOf\":{\"@id\":\"https:\/\/wordpress.callac.online\/#website\"},\"datePublished\":\"2022-10-15T14:33:28+00:00\",\"dateModified\":\"2022-10-15T15:05:08+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/wordpress.callac.online\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Python\",\"item\":\"https:\/\/wordpress.callac.online\/index.php\/python\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Raspberry Pi Pico et MicroPython\",\"item\":\"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Lectures analogiques\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/wordpress.callac.online\/#website\",\"url\":\"https:\/\/wordpress.callac.online\/\",\"name\":\"Maths & Num\u00e9rique\",\"description\":\"Des outils pour les enseignants de math\u00e9matiques et de num\u00e9rique\",\"publisher\":{\"@id\":\"https:\/\/wordpress.callac.online\/#\/schema\/person\/04061f1ca2c2c42039142a704be95940\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/wordpress.callac.online\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\/\/wordpress.callac.online\/#\/schema\/person\/04061f1ca2c2c42039142a704be95940\",\"name\":\"dlefur\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/wordpress.callac.online\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/4a9e17be136808c6597f28aa2b6c13126dab066fdc2198ff60090972c9b7fafc?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/4a9e17be136808c6597f28aa2b6c13126dab066fdc2198ff60090972c9b7fafc?s=96&d=mm&r=g\",\"caption\":\"dlefur\"},\"logo\":{\"@id\":\"https:\/\/wordpress.callac.online\/#\/schema\/person\/image\/\"},\"description\":\"Enseignant de math\u00e9matiques Lyc\u00e9e Pasteur S\u00e3o Paulo\",\"sameAs\":[\"http:\/\/wordpress.callac.online\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Lectures analogiques - Maths &amp; Num\u00e9rique","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/wordpress.callac.online\/index.php\/python\/raspberry-pi-pico-et-micropython\/lectures-analogiques\/","og_locale":"fr_FR","og_type":"article","og_title":"Lectures analogiques - Maths &amp; Num\u00e9rique","og_description":"G\u00e9n\u00e9ralit\u00e9s Seules les pattes GP26 (ADC(0)), GP27 (ADC(1)) et GP28 (ADC(2)) acceptent les lectures analogiques. 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