{"id":2283,"date":"2025-02-13T15:05:07","date_gmt":"2025-02-13T14:05:07","guid":{"rendered":"https:\/\/42nibbles.de\/?p=2283"},"modified":"2025-02-13T15:06:29","modified_gmt":"2025-02-13T14:06:29","slug":"esp32-touch-soundboard","status":"publish","type":"post","link":"https:\/\/42nibbles.de\/?p=2283","title":{"rendered":"ESP32 Touch Soundboard"},"content":{"rendered":"\n<p>Bei diesem Projekt wurde eine kapazitive 5&#215;5 Touch-Matrix realisiert, die je nach Druck auf einer Tastenfl\u00e4che eine entsprechende MP3 abspielt.<br><\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69eb7a572c2d1&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69eb7a572c2d1\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"802\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140024-1200x802.jpg\" alt=\"\" class=\"wp-image-2284\" srcset=\"https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140024-1200x802.jpg 1200w, https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140024-768x513.jpg 768w, https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140024-1536x1026.jpg 1536w, https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140024-344x230.jpg 344w, https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140024.jpg 2000w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Vergr\u00f6\u00dfern\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<!--more-->\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"ESP32 Capacitive Touch Soundboard\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/ucUUUz1DWG0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Die Touch-sensitiven GPIOs des ESP32 werden hier ausgenutzt um eine 5&#215;5 Matrix zu formen. Bei einem Interrupt wird \u00fcber die Zeile und Spalte ausgewertet, welche Taste bet\u00e4tigt wurde. Anschlie\u00dfend wird auf dem integrierten DFPlayer eine mp3-Datei von der SD-Karte \u00fcber einen kleinen Lautsprecher ausgegeben.<br><\/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 data-wp-context=\"{&quot;imageId&quot;:&quot;69eb7a572c713&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69eb7a572c713\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"2294\" src=\"https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/Case_Touch-1200x675.jpg\" alt=\"\" class=\"wp-image-2294\" 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12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69eb7a572cd1d&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69eb7a572cd1d\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"852\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"2295\" src=\"https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140149-1-1200x852.jpg\" alt=\"\" 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data-wp-interactive=\"core\/image\" data-wp-key=\"69eb7a572d2fe\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"900\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"2298\" src=\"https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140058-2-1200x900.jpg\" alt=\"\" class=\"wp-image-2298\" srcset=\"https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140058-2-1200x900.jpg 1200w, https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140058-2-768x576.jpg 768w, https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140058-2-1536x1152.jpg 1536w, https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140058-2-2048x1536.jpg 2048w, https:\/\/42nibbles.de\/wp-content\/uploads\/2025\/02\/IMG_20250213_140058-2-307x230.jpg 307w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Vergr\u00f6\u00dfern\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/figure>\n\n\n\n<p>Durch eine beim Start durchgef\u00fchrte Selbstkalibrierung der kapazititven Touch-Fl\u00e4chen, ist es auch m\u00f6glich das PCB mit einer Folie zu bekleben, bei der die Touch-Fl\u00e4chen beschriftet oder gekennzeichnet werden.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bei diesem Projekt wurde eine kapazitive 5&#215;5 Touch-Matrix realisiert, die je nach Druck auf einer Tastenfl\u00e4che eine entsprechende MP3 abspielt.<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[21,31],"tags":[],"class_list":["post-2283","post","type-post","status-publish","format-standard","hentry","category-blog","category-projekte"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/42nibbles.de\/index.php?rest_route=\/wp\/v2\/posts\/2283","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/42nibbles.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/42nibbles.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/42nibbles.de\/index.php?rest_route=\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/42nibbles.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2283"}],"version-history":[{"count":3,"href":"https:\/\/42nibbles.de\/index.php?rest_route=\/wp\/v2\/posts\/2283\/revisions"}],"predecessor-version":[{"id":2300,"href":"https:\/\/42nibbles.de\/index.php?rest_route=\/wp\/v2\/posts\/2283\/revisions\/2300"}],"wp:attachment":[{"href":"https:\/\/42nibbles.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/42nibbles.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/42nibbles.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}