{"id":397,"date":"2015-09-06T15:59:38","date_gmt":"2015-09-06T13:59:38","guid":{"rendered":"http:\/\/www.raulet.net\/WP\/?p=397"},"modified":"2015-09-07T06:39:01","modified_gmt":"2015-09-07T04:39:01","slug":"esp8266-modele-esp-201","status":"publish","type":"post","link":"https:\/\/www.raulet.net\/WP\/esp8266-modele-esp-201\/","title":{"rendered":"ESP8266 (mod\u00e8le ESP-201)"},"content":{"rendered":"

Les modules ESP8266 sont d\u00e9clin\u00e9s en diff\u00e9rents mod\u00e8les, avec des brochages diff\u00e9rents. Il int\u00e8grent du Wifi et un processeur 32bits. leur prix est de quelques euros seulement.(\u00e0 partir de 3 ou 4 euro sur ebay.fr)
\n\"ESP8266-ESP-201-IMG_7898\"<\/a><\/p>\n

Avec les firmwares par d\u00e9faut, il est possible de les piloter avec des simples commandes \u00ab\u00a0AT\u00a0\u00bb, comme les modem, donc facile \u00e0 interfacer avec un arduino en RS232. Il est aussi possible de les flasher avec d’autres firmwares, afin d’en faire des modules autonomes.<\/p>\n

Ce mod\u00e8le, le ESP201, poss\u00e8de plus de broches (GPIO) et la possibilit\u00e9 de connecter une antenne externe.<\/p>\n

Important<\/strong> : ne pas alimenter le module en plus que 3.3V, et ne pas exposer les \u00ab\u00a0IO\u00a0\u00bb du module \u00e0 plus de 3.3V. Il faut \u00e9ventuellement utiliser un pont diviseur de tension si on le connecte \u00e0 d’autres modules en 5V (un arduino par exemple).<\/p>\n

Pour l’instant, mon module ESP8266 est connect\u00e9 \u00e0 un CP2102 (convertisseur USB \/ S\u00e9rie), et branch\u00e9 sur une Rapsberry Pi 2.
\nVoici le c\u00e2blage : \"wpid-wp-1441548113244.jpg\"<\/a><\/p>\n\n\n\n\n\n\n\n\n\n
CP2102<\/strong><\/td>\nESP8266<\/strong><\/td>\n<\/tr>\n
3.3V<\/td>\n3.3V<\/td>\n<\/tr>\n
GND<\/td>\nGND<\/td>\n<\/tr>\n
TX<\/td>\nRX<\/td>\n<\/tr>\n
RX<\/td>\nTX<\/td>\n<\/tr>\n
3.3V<\/td>\nCHIP_EN<\/td>\n<\/tr>\n
GND<\/td>\nIO15<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Sous Linux, on peut utiliser la commande \u00ab\u00a0cu\u00a0\u00bb, comme par exemple :<\/p>\n

\u00a0cu -l \/dev\/ttyUSB1 -s 115200<\/pre>\n
A la fin des commandes AT saisies en ligne de commande, il faut lui envoyer un <CR> <LF>, soit <ctrl>-M et <ctrl>-J<\/strong>. au lieu de faire <enter>.<\/p>\n
AT ctrl-M ctrl-J\r\n\r\nOK<\/pre>\n
Pour se d\u00e9connecter, il faut entrer la s\u00e9quence \u00ab\u00a0~.\u00a0\u00bb<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Les modules ESP8266 sont d\u00e9clin\u00e9s en diff\u00e9rents mod\u00e8les, avec des brochages diff\u00e9rents. Il int\u00e8grent du Wifi et un processeur 32bits. […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","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":"","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":[12],"tags":[],"class_list":["post-397","post","type-post","status-publish","format-standard","hentry","category-esp8266"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false},"uagb_author_info":{"display_name":"arnaud","author_link":"https:\/\/www.raulet.net\/WP\/author\/arnaud\/"},"uagb_comment_info":0,"uagb_excerpt":"Les modules ESP8266 sont d\u00e9clin\u00e9s en diff\u00e9rents mod\u00e8les, avec des brochages diff\u00e9rents. Il int\u00e8grent du Wifi et un processeur 32bits. […]","_links":{"self":[{"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/posts\/397","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/comments?post=397"}],"version-history":[{"count":22,"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/posts\/397\/revisions"}],"predecessor-version":[{"id":423,"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/posts\/397\/revisions\/423"}],"wp:attachment":[{"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/media?parent=397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/categories?post=397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.raulet.net\/WP\/wp-json\/wp\/v2\/tags?post=397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}