{"id":4449,"date":"2025-05-27T15:23:22","date_gmt":"2025-05-27T07:23:22","guid":{"rendered":"https:\/\/meskernel.net\/?p=4449"},"modified":"2026-02-28T15:48:03","modified_gmt":"2026-02-28T07:48:03","slug":"usart-vs-uart","status":"publish","type":"post","link":"https:\/\/meskernel.net\/fr\/usart-vs-uart\/","title":{"rendered":"USART vs UART Communication \u2014 What Engineers Need to Know"},"content":{"rendered":"<p>Lors de l'int\u00e9gration d'un laser <a href=\"https:\/\/meskernel.net\/fr\/products\/\">capteur de distance<\/a> into an embedded system, one of the most important considerations is the type of serial interface it supports\u2014USART vs UART. This comparison isn\u2019t just technical jargon; understanding the key differences between USART vs UART can directly impact the reliability and efficiency of your sensor communication setup. While these two protocols are often confused or used interchangeably, they operate differently at the hardware level. Knowing which one your <a href=\"https:\/\/meskernel.net\/fr\/laser-rangefinder\/\">t\u00e9l\u00e9m\u00e8tre laser<\/a> est essentielle pour une int\u00e9gration transparente, en particulier dans les applications de haute pr\u00e9cision o\u00f9 la synchronisation et l'int\u00e9grit\u00e9 des donn\u00e9es sont critiques.<\/p>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list\">\n<div id=\"faq-question-1748328586643\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">\ud83e\udde0 Qu'est-ce que l'UART ?<\/h3>\n<div class=\"rank-math-answer\">\n\n<p>UART (Universal Asynchronous Receiver\/Transmitter) is a simple, widely-used <a href=\"https:\/\/meskernel.net\/fr\/serial-communication\/\">communication en s\u00e9rie<\/a> protocol that operates without a shared clock. It sends data asynchronously using start\/stop bits and a pre-defined baud rate.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n<p><strong>Les principaux avantages de l'UART sont les suivants<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Installation facile avec <a href=\"https:\/\/meskernel.net\/fr\/microcontrollers-and-laser-sensors\/\">microcontr\u00f4leurs<\/a> comme <a href=\"https:\/\/meskernel.net\/fr\/arduino-laser-distance-modules\/\">Arduino<\/a> ou <a href=\"https:\/\/meskernel.net\/fr\/esp32-laser-distance-sensor\/\">ESP32<\/a><\/li>\n\n\n\n<li>Pas besoin d'une ligne d'horloge externe<\/li>\n\n\n\n<li>Largement pris en charge par les produits \u00e9lectroniques grand public et de bricolage<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list\">\n<div id=\"faq-question-1748328624509\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">\ud83d\udd04 Qu'est-ce que l'USART ?<\/h3>\n<div class=\"rank-math-answer\">\n\n<p>L'USART (Universal Synchronous\/Asynchronous Receiver\/Transmitter) s'appuie sur l'UART en prenant en charge les communications asynchrones et synchrones. Cette flexibilit\u00e9 suppl\u00e9mentaire le rend particuli\u00e8rement utile dans les syst\u00e8mes embarqu\u00e9s plus complexes ou de qualit\u00e9 industrielle.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n<p><strong>Avantages de l'USART :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fonctionne en mode UART et en mode synchrone<\/li>\n\n\n\n<li>Prise en charge des communications \u00e0 grande vitesse ou sensibles \u00e0 l'horloge<\/li>\n\n\n\n<li>Souvent pr\u00e9sents dans les MCU STM32, AVR et ARM<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udce1 L'importance des capteurs de distance \u00e0 laser<\/h2>\n\n\n\n<p>Un grand nombre des produits haute performance d'aujourd'hui <a href=\"https:\/\/meskernel.net\/fr\/laser-distance-tech\/\">distance laser<\/a> sensors, including those from <a href=\"https:\/\/meskernel.net\/fr\/\">Meskernel<\/a>Les capteurs de la s\u00e9rie TS1224 sont dot\u00e9s d'interfaces de communication USART (TTL-level UART). Cela signifie qu'un capteur comme le TS1224 offre non seulement :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mesure \u00e0 longue port\u00e9e de haute pr\u00e9cision (bas\u00e9e sur la technologie laser 905nm)<\/li>\n\n\n\n<li>Facteur de forme compact et l\u00e9ger<\/li>\n\n\n\n<li>Sortie de mesure en temps r\u00e9el<\/li>\n<\/ul>\n\n\n\n<p>...mais offre \u00e9galement une communication s\u00e9rie polyvalente compatible avec la plupart des microcontr\u00f4leurs et des syst\u00e8mes industriels.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udee0\ufe0f Applications typiques :<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Automatisation industrielle<\/strong> pour le niveau et <a href=\"https:\/\/meskernel.net\/fr\/distance-measurement-sensor\/\">mesure de la distance<\/a><\/li>\n\n\n\n<li><strong>Drones intelligents (<a href=\"https:\/\/meskernel.net\/fr\/laser-distance-sensors-in-uav\/\">UAV<\/a>)<\/strong> pour un contr\u00f4le pr\u00e9cis de l'altitude<\/li>\n\n\n\n<li><strong>Robotique <a href=\"https:\/\/meskernel.net\/fr\/navigation-distance-sensor\/\">navigation<\/a><\/strong> et SLAM (localisation et cartographie simultan\u00e9es)<\/li>\n\n\n\n<li><strong>Entrep\u00f4t <a href=\"https:\/\/meskernel.net\/fr\/autonomous-logistics\/\">la logistique<\/a><\/strong> pour l'objet <a href=\"https:\/\/meskernel.net\/fr\/animal-detection\/\">d\u00e9tection<\/a><\/li>\n\n\n\n<li><strong>Machines agricoles<\/strong> pour les terrains suivants<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2705 <em>Toutes ces applications b\u00e9n\u00e9ficient d'une communication s\u00e9rie robuste et \u00e0 faible latence, rendue possible par les interfaces USART.<\/em><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udde9 USART vs UART : Comparaison technique rapide<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Fonctionnalit\u00e9<\/th><th>UART<\/th><th>USART<\/th><\/tr><\/thead><tbody><tr><td>Signal d'horloge<\/td><td>Pas n\u00e9cessaire<\/td><td>Requis (pour le mode synchrone)<\/td><\/tr><tr><td>Type de communication<\/td><td>Asynchrone uniquement<\/td><td>Asynchrone + Synchrone<\/td><\/tr><tr><td>Vitesse et pr\u00e9cision<\/td><td>Standard<\/td><td>Plus rapide, plus pr\u00e9cis<\/td><\/tr><tr><td>Trouv\u00e9 dans<\/td><td>Arduino, ESP8266, Raspberry Pi<\/td><td>STM32, AVR, MCU industriels<\/td><\/tr><tr><td>Utilis\u00e9 en <a href=\"https:\/\/meskernel.net\/fr\/about\/\">Meskernel<\/a> Capteurs<\/td><td>\u2705 (via USART de niveau TTL)<\/td><td>\u2705<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd17 D\u00e9couvrez notre gamme de d\u00e9tecteurs de distance laser<\/h2>\n\n\n\n<p>Meskernel offre une gamme de<a href=\"https:\/\/meskernel.net\/fr\/detecteurs-de-distance-laser-industriels\/\"> <strong>D\u00e9tecteurs de distance laser de qualit\u00e9 industrielle<\/strong><\/a> avec interfaces UART\/USART, id\u00e9al pour les d\u00e9veloppeurs, les ing\u00e9nieurs et les int\u00e9grateurs de syst\u00e8mes :<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd0d Featured Product : <a href=\"https:\/\/meskernel.net\/fr\/product\/laser-distance-module\/\">Module de distance laser TS1224<\/a><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Type de laser :<\/strong> Laser \u00e0 semi-conducteur 905 nm<\/li>\n\n\n\n<li><strong>Interface :<\/strong> UART (TTL) via USART<\/li>\n\n\n\n<li><strong>Gamme :<\/strong> Jusqu'\u00e0 1500 m\u00e8tres<\/li>\n\n\n\n<li><strong>Pr\u00e9cision :<\/strong> \u00b11 m<\/li>\n\n\n\n<li><strong>Id\u00e9al pour :<\/strong> Robotique, drones, automatisation, logistique, etc.<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udc49 <a href=\"https:\/\/meskernel.net\/fr\/produits\/\">Voir tous les capteurs<\/a><\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"d0d3d0\" data-has-transparency=\"false\" style=\"--dominant-color: #d0d3d0;\" fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"718\" data-id=\"4444\" src=\"https:\/\/meskernel.net\/wp-content\/uploads\/2025\/04\/distance-sensor-module.webp\" alt=\"module de d\u00e9tection de distance\" class=\"wp-image-4444 not-transparent\" srcset=\"https:\/\/meskernel.net\/wp-content\/uploads\/2025\/04\/distance-sensor-module.webp 800w, https:\/\/meskernel.net\/wp-content\/uploads\/2025\/04\/distance-sensor-module-300x269.webp 300w, https:\/\/meskernel.net\/wp-content\/uploads\/2025\/04\/distance-sensor-module-768x689.webp 768w, https:\/\/meskernel.net\/wp-content\/uploads\/2025\/04\/distance-sensor-module-400x359.webp 400w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">phase <a href=\"https:\/\/meskernel.net\/fr\/laser-sensors-for-railway\/\">capteurs laser<\/a><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"636\" height=\"586\" data-id=\"3322\" src=\"https:\/\/meskernel.net\/wp-content\/uploads\/2024\/12\/Types-of-Distance-Sensors.jpg\" alt=\"Types de capteurs de distance\" class=\"wp-image-3322\" srcset=\"https:\/\/meskernel.net\/wp-content\/uploads\/2024\/12\/Types-of-Distance-Sensors.jpg 636w, https:\/\/meskernel.net\/wp-content\/uploads\/2024\/12\/Types-of-Distance-Sensors-300x276.jpg 300w, https:\/\/meskernel.net\/wp-content\/uploads\/2024\/12\/Types-of-Distance-Sensors-400x369.jpg 400w\" sizes=\"(max-width: 636px) 100vw, 636px\" \/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/meskernel.net\/fr\/types-of-distance-sensors\/\">Types de capteurs de distance<\/a><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"641\" height=\"438\" data-id=\"3480\" src=\"https:\/\/meskernel.net\/wp-content\/uploads\/2025\/01\/range-finder.jpg\" alt=\"t\u00e9l\u00e9m\u00e8tre\" class=\"wp-image-3480\" srcset=\"https:\/\/meskernel.net\/wp-content\/uploads\/2025\/01\/range-finder.jpg 641w, https:\/\/meskernel.net\/wp-content\/uploads\/2025\/01\/range-finder-300x205.jpg 300w, https:\/\/meskernel.net\/wp-content\/uploads\/2025\/01\/range-finder-400x273.jpg 400w\" sizes=\"(max-width: 641px) 100vw, 641px\" \/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/meskernel.net\/fr\/range-finder\/\">t\u00e9l\u00e9m\u00e8tre<\/a><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" data-id=\"3533\" src=\"https:\/\/meskernel.net\/wp-content\/uploads\/2024\/10\/LiDAR-Technology-1024x683.jpg\" alt=\"Technologie LiDAR\" class=\"wp-image-3533\" srcset=\"https:\/\/meskernel.net\/wp-content\/uploads\/2024\/10\/LiDAR-Technology-1024x683.jpg 1024w, https:\/\/meskernel.net\/wp-content\/uploads\/2024\/10\/LiDAR-Technology-300x200.jpg 300w, https:\/\/meskernel.net\/wp-content\/uploads\/2024\/10\/LiDAR-Technology-768x512.jpg 768w, https:\/\/meskernel.net\/wp-content\/uploads\/2024\/10\/LiDAR-Technology-400x267.jpg 400w, https:\/\/meskernel.net\/wp-content\/uploads\/2024\/10\/LiDAR-Technology.jpg 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/meskernel.net\/fr\/lidar\/\">LiDAR<\/a> Technologie<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"500\" data-id=\"3042\" src=\"https:\/\/meskernel.net\/wp-content\/uploads\/2024\/12\/Distance-Measurement-System.jpg\" alt=\"Syst\u00e8me de mesure de la distance\" class=\"wp-image-3042\" srcset=\"https:\/\/meskernel.net\/wp-content\/uploads\/2024\/12\/Distance-Measurement-System.jpg 750w, https:\/\/meskernel.net\/wp-content\/uploads\/2024\/12\/Distance-Measurement-System-300x200.jpg 300w, https:\/\/meskernel.net\/wp-content\/uploads\/2024\/12\/Distance-Measurement-System-400x267.jpg 400w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/meskernel.net\/fr\/distance-measurement-system\/\">Syst\u00e8me de mesure de la distance<\/a><\/figcaption><\/figure>\n<\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcc8 Accro\u00eetre les performances des conceptions embarqu\u00e9es avec des capteurs compatibles USART<\/h2>\n\n\n\n<p>Choix d'un appareil compatible USART <a href=\"https:\/\/meskernel.net\/fr\/advantages-of-laser-distance-sensor\/\">capteur de distance laser<\/a> not only streamlines development but also ensures future scalability across applications. Whether you&#8217;re building a robot, a drone, or a factory <a href=\"https:\/\/meskernel.net\/fr\/high-precision-laser-sensors\/\">syst\u00e8me d'automatisation<\/a>, the right communication protocol is essential for real-time reliability and precision.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\ude4b Questions fr\u00e9quemment pos\u00e9es (FAQ)<\/h3>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list\">\n<div id=\"faq-question-1748325284855\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\">\u2753 <strong>Quelle est la diff\u00e9rence entre TTL UART et USART ? (USART vs UART expliqu\u00e9)<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p><strong>USART vs UART<\/strong> est une comparaison courante dans le domaine de la communication embarqu\u00e9e. La principale diff\u00e9rence r\u00e9side dans le fait que l'USART<strong> <\/strong>(R\u00e9cepteur\/\u00e9metteur synchrone\/asynchrone universel)<strong> <\/strong>prend en charge les communications synchrones et asynchrones, tandis que UART (Universal Asynchronous Receiver\/Transmitter) ne prend en charge que le mode asynchrone.<br \/><strong><a href=\"https:\/\/meskernel.net\/fr\/ttl-uart\/\">TTL UART<\/a><\/strong> fait r\u00e9f\u00e9rence \u00e0 un signal UART qui utilise des niveaux de tension TTL (Transistor-Transistor Logic) - typiquement 3,3V ou 5V - courants dans les syst\u00e8mes embarqu\u00e9s. Alors que l'UART TTL est une sp\u00e9cification d'interface physique, l'USART fait r\u00e9f\u00e9rence \u00e0 un module de communication plus flexible qui peut \u00e9galement \u00e9mettre des signaux de niveau TTL en fonction du mat\u00e9riel.<br \/>En r\u00e9sum\u00e9 :<br \/><strong>USART<\/strong> = prend en charge les modes synchrone et asynchrone<br \/><strong>UART<\/strong> = asynchrone uniquement<br \/><strong>TTL UART<\/strong> = Signal UART aux niveaux de tension TTL<br \/>La compr\u00e9hension de ces diff\u00e9rences aide les ing\u00e9nieurs \u00e0 choisir la bonne interface pour des appareils tels que <a href=\"https:\/\/meskernel.net\/fr\/laser-distance-sensors\/\">D\u00e9tecteurs de distance \u00e0 laser<\/a> in embedded applications.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1748325304360\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\">\u2753Les capteurs Meskernel sont-ils compatibles avec Arduino ?<\/h5>\n<div class=\"rank-math-answer\">\n\n<p>Oui, la plupart des capteurs Meskernel utilisent des UART compatibles TTL (via USART), ce qui les rend facilement int\u00e9grables avec Arduino, STM32, et d'autres plateformes communes.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1748325331512\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\">\u2753Capable d'utiliser les capteurs de distance laser Meskernel dans des environnements ext\u00e9rieurs ?<\/h5>\n<div class=\"rank-math-answer\">\n\n<p>Oui. Nombre de nos mod\u00e8les sont con\u00e7us pour une utilisation industrielle en ext\u00e9rieur, avec de solides conceptions anti-interf\u00e9rences et r\u00e9sistantes aux intemp\u00e9ries.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1748329098401\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\">\u2753 <strong>L'USART est-il meilleur que l'UART pour les d\u00e9tecteurs de distance \u00e0 laser ?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>Cela d\u00e9pend de votre application. Dans le d\u00e9bat USART vs UART, USART offre plus de flexibilit\u00e9 car il supporte \u00e0 la fois la communication synchrone et asynchrone. Cependant, la plupart des d\u00e9tecteurs de distance laser n'utilisent que la communication asynchrone, ce qui rend l'UART plus que suffisant dans de nombreux cas. Si votre microcontr\u00f4leur est \u00e9quip\u00e9 d'un USART, il peut g\u00e9n\u00e9ralement fonctionner en mode UART, ce qui vous offre une plus grande compatibilit\u00e9 avec les capteurs int\u00e9gr\u00e9s.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1748329142386\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\">\u2753 <strong>L'USART peut-il \u00eatre utilis\u00e9 comme UART dans les syst\u00e8mes embarqu\u00e9s ?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>Oui. Dans la plupart des microcontr\u00f4leurs, les modules USART peuvent fonctionner en mode UART en d\u00e9sactivant l'horloge synchrone. Cela rend l'USART tr\u00e8s polyvalent dans les conceptions int\u00e9gr\u00e9es. Dans le contexte USART vs UART, cette adaptabilit\u00e9 est l'une des raisons pour lesquelles les ing\u00e9nieurs choisissent souvent des MCU compatibles USART lorsqu'ils travaillent avec des dispositifs tels que les modules laser TTL UART.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1748329183734\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\">\u2753 <strong>Pourquoi l'USART ou l'UART est-il important dans le choix d'un module de d\u00e9tection ?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>Le choix entre USART et UART est important car il affecte la fa\u00e7on dont votre MCU s'interface avec des p\u00e9riph\u00e9riques tels que les d\u00e9tecteurs de distance laser. Certains modules n\u00e9cessitent explicitement un UART TTL \u00e0 des niveaux de tension sp\u00e9cifiques (par exemple, 3,3 V), tandis que d'autres fonctionnent mieux avec des flux de donn\u00e9es synchrones. Conna\u00eetre le type de communication de votre capteur permet d'\u00e9viter les probl\u00e8mes de compatibilit\u00e9 dans les syst\u00e8mes embarqu\u00e9s.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1748329223627\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\">\u2753 <strong>Tous les microcontr\u00f4leurs supportent-ils \u00e0 la fois USART et UART ?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>Non. Tous les microcontr\u00f4leurs ne disposent pas de p\u00e9riph\u00e9riques USART d\u00e9di\u00e9s. Certains n'offrent que l'UART, ce qui les limite \u00e0 la communication asynchrone. En termes d'USART par rapport \u00e0 l'UART, les microcontr\u00f4leurs dot\u00e9s d'un USART offrent une plus grande flexibilit\u00e9 pour assurer la p\u00e9rennit\u00e9 des conceptions de capteurs, en particulier si un transfert de donn\u00e9es synchrone peut \u00eatre n\u00e9cessaire.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1748329257658\" class=\"rank-math-list-item\">\n<h5 class=\"rank-math-question\">\u2753 <strong>Quels sont les niveaux de tension typiques d'un TTL UART utilis\u00e9 dans les capteurs laser ?<\/strong><\/h5>\n<div class=\"rank-math-answer\">\n\n<p>La plupart des interfaces UART TTL utilis\u00e9es dans les <a href=\"https:\/\/www.globalsources.com\/chengdu-meskernel\/showroom_6002100157315.htm\" target=\"_blank\" rel=\"noopener\">D\u00e9tecteurs de distance \u00e0 laser<\/a> fonctionnent \u00e0 3,3V ou 5V, selon la conception du capteur. Ces niveaux de tension sont importants lorsque l'on compare USART et UART, car la compatibilit\u00e9 de la couche physique est tout aussi importante que la compatibilit\u00e9 du protocole.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\ude80 Pr\u00eat \u00e0 commencer ?<\/h2>\n\n\n\n<p>D\u00e9couvrez nos<a href=\"https:\/\/meskernel.net\/fr\/telecharger\/\"> Catalogue de capteurs de distance laser<\/a> et commencez \u00e0 construire votre prochain syst\u00e8me embarqu\u00e9 de haute pr\u00e9cision avec le bon protocole de communication.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-meskernel wp-block-embed-meskernel\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"bNqj9y6Dt4\"><a href=\"https:\/\/meskernel.net\/fr\/analog-distance-sensors\/\">Capteurs de distance analogiques ou num\u00e9riques : Guide pratique pour les ing\u00e9nieurs et les int\u00e9grateurs<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u300a Analog Distance Sensors vs Digital: A Practical Guide for Engineers &amp; Integrators \u300b\u2014Meskernel\" src=\"https:\/\/meskernel.net\/analog-distance-sensors\/embed\/#?secret=vYpn8P1jWr#?secret=bNqj9y6Dt4\" data-secret=\"bNqj9y6Dt4\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>","protected":false},"excerpt":{"rendered":"<p>Compare USART vs UART communication interfaces in terms of speed, modes, and applications. Find out which serial interface fits your MCU or embedded design.<\/p>","protected":false},"author":1,"featured_media":4450,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[50],"tags":[],"class_list":["post-4449","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/posts\/4449","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/comments?post=4449"}],"version-history":[{"count":0,"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/posts\/4449\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/media\/4450"}],"wp:attachment":[{"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/media?parent=4449"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/categories?post=4449"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/meskernel.net\/fr\/wp-json\/wp\/v2\/tags?post=4449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}