{"id":6795,"date":"2020-05-29T13:08:10","date_gmt":"2020-05-29T11:08:10","guid":{"rendered":"https:\/\/www.nerdiy.de\/?p=6795"},"modified":"2022-01-20T13:01:09","modified_gmt":"2022-01-20T12:01:09","slug":"howto-espeasy-wemos-d1-mini-adc-adapter-a-une-autre-tension-maximale","status":"publish","type":"post","link":"https:\/\/nerdiy.de\/fr\/howto-espeasy-wemos-d1-mini-adc-adapter-a-une-autre-tension-maximale\/","title":{"rendered":"HowTo : ESPEasy \/ Wemos D1 Mini - Adapter le CAN \u00e0 une autre tension maximale"},"content":{"rendered":"<p>Vous pouvez utiliser l&#039;ADC sur l&#039;ESP8266 pour mesurer les tensions. Ceci est utile, par exemple, pour enregistrer une tension de batterie et donc le niveau de charge de la batterie ou une luminosit\u00e9 \u00e0 l&#039;aide d&#039;un LDR et d&#039;une r\u00e9sistance s\u00e9rie.<\/p>\n\n\n\n<p>Cependant, l&#039;ADC de l&#039;ESP8266 est un peu particulier. Malheureusement, sans c\u00e2blage externe suppl\u00e9mentaire, cela ne peut d\u00e9terminer que des tensions jusqu&#039;\u00e0 un maximum de 1V. Il n&#039;est donc pas possible de d\u00e9terminer directement la tension d&#039;une batterie LiPo car la plage de tension d&#039;une LiPo saine est de 3,2 \u00e0 4,2V.<\/p>\n\n\n\n<p>Une astuce est utilis\u00e9e pour que l&#039;ADC puisse \u00e9galement mesurer des tensions plus \u00e9lev\u00e9es. Un diviseur de tension est utilis\u00e9 pour r\u00e9duire la tension \u00e0 mesurer \u00e0 la plage de tension possible du CAN.<\/p>\n\n\n\n<p>L&#039;ADC mesure alors des tensions dans la plage de 0V \u00e0 1V qui repr\u00e9sentent une valeur plus \u00e9lev\u00e9e sur le diviseur de tension r\u00e9el. Par exemple, un diviseur de tension est install\u00e9 sur le circuit imprim\u00e9 du Wemos D1 Mini pour mesurer des tensions allant jusqu&#039;\u00e0 3,3V. C&#039;est pratique, mais malheureusement pas suffisant pour pouvoir mesurer la tension d&#039;une LiPo par exemple.<\/p>\n\n\n\n<p>La fa\u00e7on dont vous pouvez \u00e9tendre cette plage de tension maximale de l&#039;ADC est d\u00e9crite dans l&#039;article suivant.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Conditions pr\u00e9alables<\/h2>\n\n\n\n<p><strong>Articles utiles :<br><\/strong>Avant de commencer cet article, vous devriez avoir trait\u00e9 les bases de la soudure. Vous trouverez des informations \u00e0 ce sujet dans l&#039;article suivant.<strong><br><em><a href=\"https:\/\/nerdiy.de\/fr\/comment-electronique-mon-ami-le-fer-a-souder\/\">\u00c9lectronique - Mon ami le fer \u00e0 souder<\/a><\/em><\/strong><\/p>\n\n\n\n<p><strong><strong>Outil requis\u00a0:<\/strong><\/strong><\/p>\n\n\n\n<p><strong><strong>Dans la liste suivante, vous trouverez tous les outils dont vous avez besoin pour mettre en \u0153uvre cet article.<\/strong><\/strong><\/p>\n\n\n<div id=\"footable_parent_8697\"\n         class=\"footable_parent ninja_table_wrapper loading_ninja_table wp_table_data_press_parent semantic_ui\">\n                <table data-ninja_table_instance=\"ninja_table_instance_0\" data-footable_id=\"8697\" data-filter-delay=\"1000\" aria-label=\"ESPEasy \/ Wemos D1 Mini - Adapter ADC \u00e0 une autre tension maximale - outil\"            id=\"footable_8697\"\n           data-unique_identifier=\"ninja_table_unique_id_227908828_8697\"\n           class=\"foo-table ninja_footable foo_table_8697 ninja_table_unique_id_227908828_8697 ui table  nt_type_ajax_table selectable striped vertical_centered  footable-paging-right\">\n                <colgroup>\n                            <col class=\"ninja_column_0\">\n                            <col class=\"ninja_column_1\">\n                            <col class=\"ninja_column_2\">\n                            <col class=\"ninja_column_3\">\n                            <col class=\"ninja_column_4\">\n                            <col class=\"ninja_column_5\">\n                    <\/colgroup>\n            <\/table>\n    \n    \n    \n<\/div>\n\n\n\n\n<p><strong><strong>Mat\u00e9riel requis :<\/strong><\/strong><\/p>\n\n\n\n<p><strong><strong>Dans la liste suivante, vous trouverez toutes les pi\u00e8ces dont vous avez besoin pour mettre en \u0153uvre cet article.<\/strong><\/strong><\/p>\n\n\n<div id=\"footable_parent_8698\"\n         class=\"footable_parent ninja_table_wrapper loading_ninja_table wp_table_data_press_parent semantic_ui\">\n                <table data-ninja_table_instance=\"ninja_table_instance_1\" data-footable_id=\"8698\" data-filter-delay=\"1000\" aria-label=\"ESPEasy \/ Wemos D1 Mini - Adapter l&#039;ADC \u00e0 une autre tension maximale - Mat\u00e9riel\"            id=\"footable_8698\"\n           data-unique_identifier=\"ninja_table_unique_id_4194574120_8698\"\n           class=\"foo-table ninja_footable foo_table_8698 ninja_table_unique_id_4194574120_8698 ui table  nt_type_ajax_table selectable striped vertical_centered  footable-paging-right\">\n                <colgroup>\n                            <col class=\"ninja_column_0\">\n                            <col class=\"ninja_column_1\">\n                            <col class=\"ninja_column_2\">\n                            <col class=\"ninja_column_3\">\n                            <col class=\"ninja_column_4\">\n                            <col class=\"ninja_column_5\">\n                    <\/colgroup>\n            <\/table>\n    \n    \n    \n<\/div>\n\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n<h2><span style=\"color: #ff0000;\">Consignes de s\u00e9curit\u00e9 <\/span><\/h2>\r\n<p><span style=\"color: #ff0000;\">Je sais que les notes suivantes sont toujours un peu ennuyeuses et semblent inutiles. Malheureusement, de nombreuses personnes qui savaient &quot;mieux&quot; ont perdu des yeux, des doigts ou d&#039;autres choses \u00e0 cause d&#039;une n\u00e9gligence ou se sont bless\u00e9es. La perte de donn\u00e9es est presque n\u00e9gligeable en comparaison, mais m\u00eame celles-ci peuvent \u00eatre vraiment ennuyeuses. Par cons\u00e9quent, veuillez prendre cinq minutes pour lire les consignes de s\u00e9curit\u00e9. Parce que m\u00eame le projet le plus cool ne vaut pas une blessure ou d&#039;autres probl\u00e8mes.<\/span><br \/><strong><em><a href=\"https:\/\/nerdiy.de\/fr\/consignes-de-securite\/\"><span style=\"color: #ff0000;\">https:\/\/www.nerdiy.de\/sicherheitshinweise\/<\/span><\/a><\/em><\/strong><\/p>\r\n<h2>Liens d'affiliation\/publicitaires<\/h2>\r\n<p><em>Les liens vers des boutiques en ligne r\u00e9pertori\u00e9s ici sont des liens dits d&#039;affiliation. Si vous cliquez sur un tel lien d&#039;affiliation et effectuez un achat via ce lien, Nerdiy.de recevra une commission de la boutique en ligne ou du fournisseur concern\u00e9. Le prix ne change pas pour vous. Si vous effectuez vos achats via ces liens, vous aidez Nerdiy.de \u00e0 pouvoir proposer d&#039;autres projets utiles \u00e0 l&#039;avenir. \ud83d\ude42\u00a0<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Comment fonctionne un diviseur de tension<\/h2>\n\n\n\n<p>Un diviseur de tension simple se compose en fait toujours d&#039;au moins deux r\u00e9sistances. Dans le sch\u00e9ma de circuit du Wemos D1 Mini ci-dessous, vous pouvez voir un diviseur de tension dans la zone marqu\u00e9e en rouge.<\/p>\n\n\n\n<p>Si vous n&#039;\u00eates pas int\u00e9ress\u00e9 par la fonction d&#039;un diviseur de tension, vous pouvez simplement sauter ce paragraphe. \ud83d\ude42<\/p>\n\n\n\n<figure class=\"wp-block-image size-full size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"569\" data-attachment-id=\"8686\" data-permalink=\"https:\/\/nerdiy.de\/fr\/howto-espeasy-wemos-d1-mini-adc-adapter-a-une-autre-tension-maximale\/www-nerdiy-de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-ka25upbesyuzotjkg-a-mrncjzfd6-zl11at4hs2hky\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-ka25upbesyuzotjkg-a-mrncjzfd6-zl11at4hs2hky.jpg?fit=936%2C657&amp;ssl=1\" data-orig-size=\"936,657\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-ka25upbesyuzotjkg-a-mrncjzfd6-zl11at4hs2hky\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-ka25upbesyuzotjkg-a-mrncjzfd6-zl11at4hs2hky.jpg?fit=810%2C569&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-ka25upbesyuzotjkg-a-mrncjzfd6-zl11at4hs2hky.jpg?resize=810%2C569&#038;ssl=1\" alt=\"\" class=\"wp-image-8686\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-ka25upbesyuzotjkg-a-mrncjzfd6-zl11at4hs2hky.jpg?w=936&amp;ssl=1 936w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-ka25upbesyuzotjkg-a-mrncjzfd6-zl11at4hs2hky.jpg?resize=300%2C211&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-ka25upbesyuzotjkg-a-mrncjzfd6-zl11at4hs2hky.jpg?resize=768%2C539&amp;ssl=1 768w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-ka25upbesyuzotjkg-a-mrncjzfd6-zl11at4hs2hky.jpg?resize=600%2C421&amp;ssl=1 600w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><figcaption>Source: <a href=\"https:\/\/www.reddit.com\/r\/esp8266\/comments\/9idpbe\/does_anyone_know_where_to_buy_genuine_wemos_d1\/\">https:\/\/www.reddit.com\/r\/esp8266\/comments\/9idpbe\/does_anyone_know_where_to_buy_genuine_wemos_d1\/<\/a><\/figcaption><\/figure>\n\n\n\n<p>Il y a deux r\u00e9sistances install\u00e9es en s\u00e9rie. La connexion sup\u00e9rieure &quot;A0&quot; provient de la broche de connexion &quot;A0&quot; sur le circuit imprim\u00e9 Wemos D1 Mini. La tension \u00e0 mesurer (par exemple votre LiPo) est connect\u00e9e \u00e0 &quot;A0&quot;.<\/p>\n\n\n\n<p>La connexion &quot;ADC&quot; m\u00e8ne alors \u00e0 l&#039;ADC r\u00e9el de l&#039;ESP8266. <\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-background has-light-gray-background-color has-background\" style=\"grid-template-columns:37% auto\"><figure class=\"wp-block-media-text__media\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"562\" height=\"769\" data-attachment-id=\"8687\" data-permalink=\"https:\/\/nerdiy.de\/fr\/howto-espeasy-wemos-d1-mini-adc-adapter-a-une-autre-tension-maximale\/www-nerdiy-de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?fit=562%2C769&amp;ssl=1\" data-orig-size=\"562,769\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?fit=562%2C769&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?resize=562%2C769&#038;ssl=1\" alt=\"\" class=\"wp-image-8687 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?w=562&amp;ssl=1 562w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?resize=219%2C300&amp;ssl=1 219w\" sizes=\"auto, (max-width: 562px) 100vw, 562px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p><strong>Pourquoi faites-vous tout cela ?<\/strong><\/p>\n\n\n\n<p>Une propri\u00e9t\u00e9 d&#039;une connexion en s\u00e9rie de deux r\u00e9sistances est utilis\u00e9e ici. <\/p>\n\n\n\n<p>Pour un circuit s\u00e9rie compos\u00e9 de deux r\u00e9sistances, il s&#039;applique, entre autres, que le rapport de la tension totale \u00e0 une tension individuelle aux bornes d&#039;une des r\u00e9sistances soit \u00e9gal au rapport de la r\u00e9sistance totale \u00e0 l&#039;une des r\u00e9sistances individuelles. Cela semble compliqu\u00e9 au premier abord, mais est expliqu\u00e9 ci-dessous. \ud83d\ude42<\/p>\n<\/div><\/div>\n\n\n\n<p>\u00c0 l&#039;avance\u00a0: en tant que formule, le tout ressemblerait \u00e0 ceci\u00a0:<\/p>\n\n\n<p>Formule 1:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?frac{R1+R2}{R2}=frac{U1+U2}{U2}\" alt=\"frac{R1+R2}{R2}=frac{U1+U2}{U2}\" align=\"absmiddle\">&nbsp;<\/p>\n<p>ou<\/p>\n<p>Formule 1.2\u00a0:&nbsp; &nbsp; <img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?frac{R1+R2}{R1}=frac{U1+U2}{U1}\" alt=\"frac{R1+R2}{R1}=frac{U1+U2}{U1}\" align=\"absmiddle\"><\/p>\n\n\n<p>&quot;U1&quot; et &quot;U2&quot; sont les tensions qui chutent aux bornes de la r\u00e9sistance &quot;R1&quot; et &quot;R2&quot;. &quot;U&quot; est identique \u00e0 U1 + U2 car dans une connexion en s\u00e9rie de r\u00e9sistances (ohmiques simples), les tensions individuelles s&#039;ajoutent \u00e0 la tension totale.<\/p>\n\n\n<p>En bref, ce qui suit s&#039;applique : <img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?U=U1+U2\" alt=\"U=U1+U2\" align=\"absmiddle\"><\/p>\n\n\n<p>Il en va de m\u00eame pour les r\u00e9sistances, car la r\u00e9sistance totale d&#039;un circuit en s\u00e9rie est constitu\u00e9e de la somme des r\u00e9sistances individuelles. <\/p>\n\n\n<p><img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?Rsum=R1+R2\" alt=\"Rsum=R1+R2\" align=\"absmiddle\"><\/p>\n\n\n<p>Ces formules peuvent maintenant tr\u00e8s bien \u00eatre utilis\u00e9es dans la formule 1 et nous obtenons ce qui suit :<\/p>\n\n\n<p><img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?frac{Rsum}{R2}=frac{U}{U2}\" alt=\"frac{Rsum}{R2}=frac{U}{U2}\" align=\"absmiddle\"><\/p>\n\n\n<p>&quot;U1&quot; et &quot;U2&quot; sont les tensions qui chutent aux bornes des r\u00e9sistances &quot;R1&quot; et &quot;R2&quot;. &quot;U&quot; est identique \u00e0 U1+U2 car dans une connexion en s\u00e9rie de r\u00e9sistances (ohmiques simples), les tensions individuelles sont ajout\u00e9es pour arriver \u00e0 la tension totale.<\/p>\n\n\n\n<p>Pour ce faire, la formule doit \u00eatre modifi\u00e9e de mani\u00e8re \u00e0 ce que la tension totale &quot;U&quot; puisse \u00eatre calcul\u00e9e \u00e0 partir des valeurs donn\u00e9es. La formule r\u00e9arrang\u00e9e donne :<\/p>\n\n\n<p>Formule 2 :\u00a0 <img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?frac{Rsum}{R2}*U2=U\" alt=\"frac{Rsum}{R2}*U2=U\" align=\"absmiddle\" \/><\/p>\n<p>Si vous ins\u00e9rez maintenant les valeurs correspondantes ici, les r\u00e9sultats suivants\u00a0:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?frac{320k}{100k}*1V=3.2V\" alt=\"frac{320k}{100k}*1V=3.2V\" align=\"absmiddle\" \/><\/p>\n\n\n<p>Avec les valeurs de r\u00e9sistance utilis\u00e9es dans le diviseur de tension, des tensions allant jusqu&#039;\u00e0 3,2 V peuvent \u00eatre mesur\u00e9es au CAN.<\/p>\n\n\n\n<p>La chose pratique : si vous modifiez ces valeurs de r\u00e9sistance, vous pouvez \u00e9galement mesurer des tensions plus \u00e9lev\u00e9es avec l&#039;ADC. Dans l&#039;exemple suivant, la tension d&#039;un LiPo.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Diviseur de tension sur le Wemos D1 Mini<\/h2>\n\n\n\n<p>Vous savez maintenant \u00e0 peu pr\u00e8s comment fonctionne un diviseur de tension et \u00e0 quoi il peut servir, entre autres. Forts de ces connaissances, nous voulons maintenant trouver des valeurs de r\u00e9sistance pour que le diviseur de tension puisse mesurer la tension d&#039;une batterie LiPo. Sa tension de fin de charge est au maximum de 4,2V. Afin que nous puissions \u00e9galement mesurer avec certitude cette tension sup\u00e9rieure, il est conseill\u00e9 de choisir une tension l\u00e9g\u00e8rement sup\u00e9rieure. Disons juste 4.3V.<\/p>\n\n\n\n<p>Pour les valeurs de tension usuelles de 4,3V, 5V, 9V et 12V, des exemples pour les r\u00e9sistances R1 sont donn\u00e9s dans le paragraphe suivant. Ainsi, vous pouvez vous \u00e9pargner le calcul. \ud83d\ude42<\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-background has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"562\" height=\"769\" data-attachment-id=\"8687\" data-permalink=\"https:\/\/nerdiy.de\/fr\/howto-espeasy-wemos-d1-mini-adc-adapter-a-une-autre-tension-maximale\/www-nerdiy-de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?fit=562%2C769&amp;ssl=1\" data-orig-size=\"562,769\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?fit=562%2C769&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?resize=562%2C769&#038;ssl=1\" alt=\"\" class=\"wp-image-8687 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?w=562&amp;ssl=1 562w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-eagle-f04h3hrfio.png?resize=219%2C300&amp;ssl=1 219w\" sizes=\"auto, (max-width: 562px) 100vw, 562px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p>L&#039;objectif est maintenant de d\u00e9terminer les valeurs de r\u00e9sistance pour R1 et R2.<\/p>\n\n\n\n<p>En m\u00eame temps, nous savons d\u00e9j\u00e0 que <strong>U=4.3V<\/strong> et <strong>U2=1V<\/strong> doit \u00eatre. Cela ne laisse qu&#039;une seule valeur pour calculer une valeur avec la formule 2, que nous devons d\u00e9terminer afin de pouvoir calculer la derni\u00e8re valeur ouverte. Mais nous nous facilitons la t\u00e2che ici et d\u00e9finissons simplement cette valeur. \ud83d\ude42<\/p>\n\n\n\n<p>Nous d\u00e9finissons d&#039;abord R2 sur 100 kOhm et voyons quelle valeur nous obtenons pour R1.<\/p>\n<\/div><\/div>\n\n\n<p>Bascul\u00e9, la Formule 1, y compris les connaissances acquises, r\u00e9sulte maintenant<\/p>\n<p>Formule 3 : <img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?frac{{color{Red}&amp;space;R1}+{color{Green}&amp;space;R2}}{{color{Green}&amp;space;R2}}=frac{{color{Green}&amp;space;U}}{{color{Green}&amp;space;U2}}\" alt=\"frac{{color{Red} R1}+{color{Green} R2}}{{color{Green} R2}}=frac{{color{Green} U}}{{color{Green} U2}}\" align=\"absmiddle\" \/><\/p>\n<p>Dans cette formule, nous connaissons toutes les valeurs (vertes) \u00e0 l&#039;exception de R1 (rouge). Nous essayons donc de r\u00e9organiser la formule selon R1 et obtenons ce qui suit\u00a0:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?1+frac{R1}{R2}=frac{U}{U2}\" alt=\"1+frac{R1}{R2}=frac{U}{U2}\" align=\"absmiddle\" \/><\/p>\n<p>simplifi\u00e9 et r\u00e9arrang\u00e9, le r\u00e9sultat est :<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?(frac{U}{U2}-1)*R2=R1\" alt=\"(frac{U}{U2}-1)*R2=R1\" align=\"absmiddle\" \/><\/p>\n<p>et de la m\u00eame couleur en cons\u00e9quence\u00a0:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?(frac{{color{Green}&amp;space;U}}{{color{Green}&amp;space;U2}}-{color{Green}&amp;space;1})*{color{Green}&amp;space;R2}={color{Red}&amp;space;R1}\" alt=\"(frac{{Green} U}}{{color{Green} U2}}-{color{Green} 1})*{color{Green} R2}={color{Red} R1}\" align=\"absmiddle\" \/><\/p>\n<p>Dans cette formule, nous connaissons maintenant toutes les valeurs vertes et la valeur (rouge) que nous recherchons se trouve \u00e0 droite du signe \u00e9gal. \ud83d\ude42<\/p>\n<p>La valeur requise pour R1 peut maintenant \u00eatre calcul\u00e9e en ins\u00e9rant\u00a0:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?(frac{4.3V}{1V}-1)*100kOhm=330kOhm\" alt=\"(frac{4.3V}{1V}-1)*100kOhm=330kOhm\" align=\"absmiddle\" \/><\/p>\n<p>Il en r\u00e9sulte une valeur de 330kOhm pour R1. Donc, si nous rempla\u00e7ons la r\u00e9sistance de 220kOhm int\u00e9gr\u00e9e dans le circuit imprim\u00e9 du Wemos D1 Mini par une r\u00e9sistance de 330kOhm, vous \u00e9tendez la plage de tension maximale mesurable de 3,3V \u00e0 4,3V et pouvez donc \u00e9galement mesurer toute la plage de tension d&#039;une batterie LiPo. \ud83d\ude42<\/p>\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/i0.wp.com\/www.nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"1080\" data-attachment-id=\"6807\" data-permalink=\"https:\/\/nerdiy.de\/fr\/howto-espeasy-wemos-d1-mini-adc-adapter-a-une-autre-tension-maximale\/20190801-174046-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?fit=3024%2C4032&amp;ssl=1\" data-orig-size=\"3024,4032\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"20190801-174046-2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?fit=768%2C1024&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?resize=810%2C1080&#038;ssl=1\" alt=\"\" class=\"wp-image-6807\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?w=3024&amp;ssl=1 3024w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?resize=600%2C800&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?w=1620&amp;ssl=1 1620w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174046-2.jpg?w=2430&amp;ssl=1 2430w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><figcaption>Voici la vue de dessous du Wemos D1 Mini. Entre autres choses, le diviseur de tension pour l&#039;ADC y est install\u00e9.<\/figcaption><\/figure>\n\n\n\n<p>Formule de calcul\u00a0:<\/p>\n\n\n<p><img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?(frac{U}{U2}-1)*R2=R1\" alt=\"(frac{U}{U2}-1)*R2=R1\" align=\"absmiddle\"><\/p>\n<ul>\n<li>U2 est toujours 1V<\/li>\n<li>U est la tension maximale mesurable souhait\u00e9e, par exemple 4,3\u00a0V<\/li>\n<li>Vous devez simplement d\u00e9finir R2. Meilleur dans une plage de 10kOhm \u00e0 100kOhm pour maintenir le courant \u00e0 travers le diviseur de tension bas.<\/li>\n<\/ul>\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Exemples de valeurs pour les tensions maximales et les valeurs de r\u00e9sistance associ\u00e9es<\/h2>\n\n\n\n<p>Vous pouvez utiliser les valeurs de r\u00e9sistance suivantes pour \u00e9tendre la tension maximale mesurable de l&#039;ADC \u00e0 la tension sp\u00e9cifi\u00e9e. <\/p>\n\n\n\n<p><strong>Tension maximale mesurable\u00a0: 4,3\u00a0V <\/strong><br>R1=330kOhm, R2=100kOhm<\/p>\n\n\n\n<p><strong>Tension maximale mesurable\u00a0:<\/strong> <strong>5V\u00a0:<\/strong> <br>R1=400kOhm, R2=100kOhm<\/p>\n\n\n\n<p><strong>Tension maximale mesurable\u00a0:<\/strong> <strong>9V\u00a0:<\/strong><br>R1=200kOhm, R2=25kOhm<\/p>\n\n\n\n<p><strong>Tension maximale mesurable\u00a0:<\/strong> <strong>12V\u00a0:<\/strong><br>R1=275kOhm, R2=25kOhm<\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-background has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-attachment-id=\"6806\" data-permalink=\"https:\/\/nerdiy.de\/fr\/howto-espeasy-wemos-d1-mini-adc-adapter-a-une-autre-tension-maximale\/20190801-174036-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?fit=3024%2C4032&amp;ssl=1\" data-orig-size=\"3024,4032\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"20190801-174036-2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?fit=768%2C1024&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?resize=768%2C1024&#038;ssl=1\" alt=\"\" class=\"wp-image-6806 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?resize=600%2C800&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?w=1620&amp;ssl=1 1620w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?w=2430&amp;ssl=1 2430w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p>Vous pouvez maintenant simplement \u00e9changer les r\u00e9sistances marqu\u00e9es 0805 R1 et R2 contre les r\u00e9sistances que vous souhaitez. \ud83d\ude42<\/p>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/i0.wp.com\/www.nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"1080\" data-attachment-id=\"6806\" data-permalink=\"https:\/\/nerdiy.de\/fr\/howto-espeasy-wemos-d1-mini-adc-adapter-a-une-autre-tension-maximale\/20190801-174036-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?fit=3024%2C4032&amp;ssl=1\" data-orig-size=\"3024,4032\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"20190801-174036-2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?fit=768%2C1024&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?resize=810%2C1080&#038;ssl=1\" alt=\"\" class=\"wp-image-6806\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?w=3024&amp;ssl=1 3024w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?resize=600%2C800&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?w=1620&amp;ssl=1 1620w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/08\/www.nerdiy.de-howto-wemos-d1-mini-adc-fuer-andere-maximalspannungen-anpassen-20190801-174036-2.jpg?w=2430&amp;ssl=1 2430w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><figcaption>Vue d\u00e9taill\u00e9e du diviseur de tension sur la Wemos D1 Mini<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Param\u00e9trage dans ESPEasy<\/h2>\n\n\n\n<p>Dans ESPEasy, la conversion de l&#039;ADC en tension peut \u00eatre effectu\u00e9e de mani\u00e8re tr\u00e8s pratique.<\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-background has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"802\" data-attachment-id=\"8692\" data-permalink=\"https:\/\/nerdiy.de\/fr\/howto-espeasy-wemos-d1-mini-adc-adapter-a-une-autre-tension-maximale\/chrome-weip4cfaqg\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-chrome-weip4cfaqg.png?fit=901%2C892&amp;ssl=1\" data-orig-size=\"901,892\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"chrome-weIP4cfAQg\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-chrome-weip4cfaqg.png?fit=810%2C802&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-chrome-weip4cfaqg.png?resize=810%2C802&#038;ssl=1\" alt=\"\" class=\"wp-image-8692 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-chrome-weip4cfaqg.png?w=901&amp;ssl=1 901w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-chrome-weip4cfaqg.png?resize=300%2C297&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-chrome-weip4cfaqg.png?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-chrome-weip4cfaqg.png?resize=768%2C760&amp;ssl=1 768w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-chrome-weip4cfaqg.png?resize=600%2C594&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/05\/www.nerdiy.de-howto-espeasy-wemos-d1-mini-adc-an-eine-andere-maximalspannungen-anpassen-chrome-weip4cfaqg.png?resize=100%2C100&amp;ssl=1 100w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p>R\u00e9glez simplement l&#039;appareil &quot;Entr\u00e9e analogique - interne&quot; comme indiqu\u00e9.<\/p>\n\n\n\n<p>Si vous utilisez une tension maximale autre que 4300V, vous devez bien entendu ajuster cette valeur en cons\u00e9quence. \ud83d\ude42<\/p>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n<h2>Amusez-vous avec le projet<\/h2>\r\n<p>J'esp\u00e8re que tout a fonctionn\u00e9 comme d\u00e9crit. Si ce n'est pas le cas ou si vous avez des questions ou des suggestions, faites-le moi savoir dans les commentaires. Je les ajouterai \u00e0 l'article si n\u00e9cessaire.<br \/>Les id\u00e9es de nouveaux projets sont toujours les bienvenues. \ud83d\ude42<\/p>\r\n<p><strong>PS Beaucoup de ces projets - en particulier les projets mat\u00e9riels - co\u00fbtent beaucoup de temps et d&#039;argent. Bien s\u00fbr, je le fais parce que j&#039;aime \u00e7a, mais si vous pensez que c&#039;est cool que je partage l&#039;information avec vous, je serais heureux d&#039;un petit don au fonds du caf\u00e9. \ud83d\ude42<\/strong><\/p>\r\n<p><a href=\"https:\/\/ko-fi.com\/nerdiy\" target=\"_blank\" rel=\"noopener\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" style=\"border: 0px; height: 36px;\" src=\"https:\/\/i0.wp.com\/cdn.ko-fi.com\/cdn\/kofi4.png?resize=143%2C36&#038;ssl=1\" alt=\"Achetez-moi un caf\u00e9 sur ko-fi.com\" width=\"143\" height=\"36\" border=\"0\" \/><\/a>\u00a0 \u00a0 \u00a0 \u00a0<input name=\"cmd\" type=\"hidden\" value=\"_s-xclick\" \/> <input name=\"hosted_button_id\" type=\"hidden\" value=\"UAZE9RMHJY7VJ\" \/> <input title=\"PayPal - Le moyen le plus s\u00fbr et le plus facile de payer en ligne !\" alt=\"Donate with PayPal button\" name=\"submit\" src=\"https:\/\/www.paypalobjects.com\/de_DE\/DE\/i\/btn\/btn_donateCC_LG.gif\" type=\"image\" \/> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.paypal.com\/de_DE\/i\/scr\/pixel.gif?resize=1%2C1&#038;ssl=1\" alt=\"\" width=\"1\" height=\"1\" border=\"0\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>Vous pouvez utiliser l&#039;ADC sur l&#039;ESP8266 pour mesurer les tensions. C&#039;est pratique, par exemple, pour d\u00e9terminer une tension de batterie et donc l&#039;\u00e9tat de charge de la batterie ou \u00e0 l&#039;aide d&#039;un LDR et d&#039;un [\u2026]<\/p>","protected":false},"author":1,"featured_media":6806,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[7,86,146,90,339,148],"tags":[169,29,171,78],"class_list":["post-6795","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-basics","category-elektronik","category-esp-easy","category-faehigkeiten","category-sticky","category-tagesprojekt5h","tag-adc","tag-arduino","tag-elektronik","tag-wemos-d1-mini"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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Dies macht das Design der Uhr noch\u2026","rel":"","context":"In &quot;3D-Druck&quot;","block_context":{"text":"3D-Druck","link":"https:\/\/nerdiy.de\/fr\/categorie\/impression-en-3d\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-pxlblck-pxlblck_ringclock-aufbauen-dsc00809-scaled.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-pxlblck-pxlblck_ringclock-aufbauen-dsc00809-scaled.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-pxlblck-pxlblck_ringclock-aufbauen-dsc00809-scaled.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-pxlblck-pxlblck_ringclock-aufbauen-dsc00809-scaled.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-pxlblck-pxlblck_ringclock-aufbauen-dsc00809-scaled.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":15478,"url":"https:\/\/nerdiy.de\/fr\/connectez-et-evaluez-comment-espeasy-turning-coder-a-l-esp8266\/","url_meta":{"origin":6795,"position":4},"title":"HowTo: ESPEasy - connectez l&#039;encodeur rotatif \u00e0 l&#039;ESP8266 et \u00e9valuez-le","author":"Fab","date":"27. January 2021","format":false,"excerpt":"Gerade wenn die eigene Schaltung ein Display zur Anzeige von Werten besitzt ist der n\u00e4chste Schritt of auch eine Bedienm\u00f6glichkeit anzuschlie\u00dfen. Dabei kann man Taster oder auch Schalter anschlie\u00dfen. Eine realtiv coole M\u00f6glichkeit die Eigene Schaltung mit einer Eingabem\u00f6glichkeit auszustatten ist dagegen der Drehencoder. Ein Drehencoder sieht auf den ersten\u2026","rel":"","context":"In &quot;Abendprojekt(&lt;2h)&quot;","block_context":{"text":"Abendprojekt(&lt;2h)","link":"https:\/\/nerdiy.de\/fr\/categorie\/projet-de-soiree2h\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/01\/www.nerdiy.de-howto-espeasy-drehencoder-anschliessen-und-auswerten-fritzing-4urdyjdhz7.jpg?fit=1200%2C583&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/01\/www.nerdiy.de-howto-espeasy-drehencoder-anschliessen-und-auswerten-fritzing-4urdyjdhz7.jpg?fit=1200%2C583&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/01\/www.nerdiy.de-howto-espeasy-drehencoder-anschliessen-und-auswerten-fritzing-4urdyjdhz7.jpg?fit=1200%2C583&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/01\/www.nerdiy.de-howto-espeasy-drehencoder-anschliessen-und-auswerten-fritzing-4urdyjdhz7.jpg?fit=1200%2C583&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/01\/www.nerdiy.de-howto-espeasy-drehencoder-anschliessen-und-auswerten-fritzing-4urdyjdhz7.jpg?fit=1200%2C583&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":16276,"url":"https:\/\/nerdiy.de\/fr\/news-pcb-development-i2c_mtrdrvr-v1-0-servodigitctrlr-pxlblck_multipcb-xgzp6847_adapter-and-nanopxl-v1-4\/","url_meta":{"origin":6795,"position":5},"title":"Nouvelles : D\u00e9veloppement de PCB - I2C_mtrDrvr V1.0, servoDigitCtrlr, pxlBlck_multiPCB, XGZP6847_adapter et nanoPxl V1.4","author":"Fab","date":"2. March 2021","format":false,"excerpt":"Zurzeit arbeite ich an ein paar PCB Projekten in denen ich Euch hier einen kleinen Einblick geben m\u00f6chte. :) Alle im folgenden vorgestellten Platinen habe bei PCBWay.com fertigen lassen. Diese unterst\u00fctzen meine Projekte und haben mir die Platinen daf\u00fcr zur Verf\u00fcgung gestellt. Wenn ihr auf der Suche nach einem zuverl\u00e4ssigen\u2026","rel":"","context":"In &quot;Elektronik&quot;","block_context":{"text":"Elektronik","link":"https:\/\/nerdiy.de\/fr\/categorie\/electronique\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/02\/www.nerdiy.de-news-pcb-entwicklung-i2c_mtrdrvr-v1-0-und-servodigitctrlr-20210204-181324-scaled.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/02\/www.nerdiy.de-news-pcb-entwicklung-i2c_mtrdrvr-v1-0-und-servodigitctrlr-20210204-181324-scaled.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/02\/www.nerdiy.de-news-pcb-entwicklung-i2c_mtrdrvr-v1-0-und-servodigitctrlr-20210204-181324-scaled.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/02\/www.nerdiy.de-news-pcb-entwicklung-i2c_mtrdrvr-v1-0-und-servodigitctrlr-20210204-181324-scaled.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/02\/www.nerdiy.de-news-pcb-entwicklung-i2c_mtrdrvr-v1-0-und-servodigitctrlr-20210204-181324-scaled.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/posts\/6795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/comments?post=6795"}],"version-history":[{"count":0,"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/posts\/6795\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/media\/6806"}],"wp:attachment":[{"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/media?parent=6795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/categories?post=6795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nerdiy.de\/fr\/wp-json\/wp\/v2\/tags?post=6795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}