{"id":17036,"date":"2025-02-25T11:26:44","date_gmt":"2025-02-25T11:26:44","guid":{"rendered":"https:\/\/edukeytech.com\/?post_type=product&#038;p=17036"},"modified":"2025-03-02T01:05:53","modified_gmt":"2025-03-02T01:05:53","slug":"dht22-capteur-de-temperature-et-humidite","status":"publish","type":"product","link":"https:\/\/edukeytech.com\/en\/product\/dht22-capteur-de-temperature-et-humidite\/","title":{"rendered":"DHT22 Capteur de Temp\u00e9rature et Humidit\u00e9"},"content":{"rendered":"<p><strong>Capteur de Temp\u00e9rature et Humidit\u00e9 DHT22<\/strong><\/p>\n<p>La DHT22 est un capteur \u00e0 bas cout permettant d\u2019acqu\u00e9rir une temp\u00e9rature et une humidit\u00e9 ambiante d\u2019une mani\u00e8re num\u00e9rique. Il utilise un capteur d\u2019humidit\u00e9 capacitif et une thermistance pour mesurer la temp\u00e9rature et l\u2019humidit\u00e9 de l\u2019ai et la transmet d\u2019une mani\u00e8re num\u00e9rique sur un bus s\u00e9rie. Les donn\u00e9es sont actualis\u00e9es toutes les 2 secondes.<\/p>\n<p>Caract\u00e9ristiques<\/p>\n<ul>\n<li>Alimentation : 3 to 5V alimentation et data<\/li>\n<li>Consommation : 2.5mA max pendant la conversion<\/li>\n<li>mesure humidit\u00e9 : de 0% \u00e0 100% avec une pr\u00e9cision \u00e0 \u00a02-5%<\/li>\n<li>mesure temp\u00e9rature : de -40\u00b0C \u00e0 80\u00b0C avec une pr\u00e9cision \u00b10.5\u00b0C<\/li>\n<\/ul>\n<ul>\n<li>Echantilonage \u00e0 0.5 Hz (toute les \u00a02 seconds)<\/li>\n<\/ul>\n<ul>\n<li>Sortie de donn\u00e9es\u00a0: Signal num\u00e9rique via protocole \u00e0 un fil<\/li>\n<li>Dimension : 27mm x 59mm x 13.5mm (1.05\u2033 x 2.32\u2033 x 0.53\u2033)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Fonctionnement<\/strong><\/p>\n<p>Le DHT22 fonctionne en envoyant des lectures num\u00e9riques de la temp\u00e9rature et de l\u2019humidit\u00e9 via un protocole de communication \u00e0 un fil. Il utilise un microcontr\u00f4leur int\u00e9gr\u00e9 pour convertir les lectures analogiques en un signal num\u00e9rique que les microcontr\u00f4leurs comme Arduino peuvent lire facilement.<\/p>\n<p><strong>Branchement <\/strong><\/p>\n<p>Le capteur DHT22 est disponible en deux formats : capteur et module. Les broches diff\u00e8rent l\u00e9g\u00e8rement entre les deux versions :<\/p>\n<p><strong>Capteur DHT22 (4 broches)<\/strong>\u00a0:<\/p>\n<ol>\n<li><strong>Vcc<\/strong>: Alimentation (3.5V \u00e0 5.5V)<\/li>\n<li><strong>Data<\/strong>: Sortie de donn\u00e9es num\u00e9riques<\/li>\n<li><strong>NC<\/strong>: Non connect\u00e9<\/li>\n<li><strong>GND<\/strong>: Masse<\/li>\n<\/ol>\n<p><strong>Module DHT22 (3 broches)<\/strong>\u00a0:<\/p>\n<ol>\n<li><strong>Vcc<\/strong>: Alimentation (3.5V \u00e0 5.5V)<\/li>\n<li><strong>Data<\/strong>: Sortie de donn\u00e9es num\u00e9riques<\/li>\n<li><strong>GND<\/strong>: Masse<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<h5>La DHT22 est un capteur \u00e0 bas cout permettant d\u2019acqu\u00e9rir une temp\u00e9rature et une humidit\u00e9 ambiante d\u2019une mani\u00e8re num\u00e9rique.<\/h5>","protected":false},"featured_media":17424,"comment_status":"open","ping_status":"closed","template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[161],"product_tag":[],"class_list":{"0":"post-17036","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-capteurs","8":"first","9":"instock","10":"shipping-taxable","11":"purchasable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/product\/17036","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/comments?post=17036"}],"version-history":[{"count":1,"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/product\/17036\/revisions"}],"predecessor-version":[{"id":17039,"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/product\/17036\/revisions\/17039"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/media\/17424"}],"wp:attachment":[{"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/media?parent=17036"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/product_brand?post=17036"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/product_cat?post=17036"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/edukeytech.com\/en\/wp-json\/wp\/v2\/product_tag?post=17036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}