{"id":8550,"date":"2022-04-15T08:35:00","date_gmt":"2022-04-15T08:35:00","guid":{"rendered":"https:\/\/www.fambach.net\/?p=8550"},"modified":"2022-04-13T11:10:03","modified_gmt":"2022-04-13T11:10:03","slug":"d1-mini-shield-buzzer-pipser","status":"publish","type":"post","link":"https:\/\/www.fambach.net\/en\/d1-mini-shield-buzzer-pipser\/","title":{"rendered":"D1 Mini Shield \u2013 Buzzer (Beeper)"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Fakten\" title=\"Facts\">Facts<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Anwendungsbereiche\" title=\"Areas of application\">Areas of application<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Ansichten\" title=\"Views\">Views<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Programmierung\" title=\"Programming\">Programming<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Bibliotheken\" title=\"Libraries\">Libraries<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Testprogramm\" title=\"Test programme\">Test programme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Alexa\" title=\"Alexa\">Alexa<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Probleme\" title=\"Problems\">Problems<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Gerat_erkannt_funktioniert_aber_nicht\" title=\"Ger\u00e4t erkannt funktioniert aber nicht\">Ger\u00e4t erkannt funktioniert aber nicht<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Sonstiges\" title=\"Miscellaneous\">Miscellaneous<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Einbinden_mit_dem_Handy\" title=\"Einbinden mit dem Handy\">Einbinden mit dem Handy<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#ESPHome\" title=\"ESPHome\">ESPHome<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Fazit\" title=\"Conclusion\">Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Verwandte_Beitrage\" title=\"Related Posts\">Related Posts<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/#Quellen\" title=\"Sources\">Sources<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Mit Hilfe dieser Zusatzplatine k\u00f6nnen dem D1 mini ein paar T\u00f6ne abgerungen werden.<\/p>\n\n\n\n<p><strong>For the D1 mini ESP8266 and ESP32, go here:<\/strong><\/p>\n\n\n<ul class=\"display-posts-listing\">\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/preview-w600-pico-v1-0-0-1mb-flash\/\">Preview \u2013 W600-Pico V1.0.0 1MB Flash<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-esp8266-modul-2-3\/\">Wemos C3 Mini<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-esp8266-modul-2-2\/\">(Wemos) D1 ESP32<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-esp8266-modul-3\/\">Wemos D1 Mini Pro (V1.1.0)<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-esp8266-modul\/\">Wemos D1 Mini<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fakten\"><\/span>Facts<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<ul><li>Ein Buzzer mehr nicht kann mit dem IOs D5 -D8 \u00fcber eine L\u00f6tbr\u00fccke verbunden werden. Bei mir war keine Vorauswahl getroffen.<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Description<\/th><th>Name<\/th><th>D1<\/th><th>D1 32<\/th><\/tr><\/thead><tbody><tr><td>Eingang Buzzer, abh\u00e4ngig von der gew\u00e4hlten L\u00f6tbr\u00fccke<\/td><td>BUZZER <\/td><td>D5 \/ D6 \/D7 \/D8<\/td><td>GPIO 22\/21\/17\/16<\/td><\/tr><\/tbody><\/table><figcaption>D1 Mini Shield &#8211; Buzzer (Pipser) &#8211; Pinout<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"208\" height=\"223\" src=\"https:\/\/www.fambach.net\/wp-content\/uploads\/ESPD1MiniSet-Buzzer-loetbruecke.jpg\" alt=\"\" class=\"wp-image-8553\"\/><figcaption>D1 Mini Shield &#8211; Buzzer (Pipser) &#8211; L\u00f6tbr\u00fccken (unbelegt)<\/figcaption><\/figure>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/www.wemos.cc\/en\/latest\/_static\/files\/sch_buzzer_v1.0.0.pdf\" data-type=\"URL\" data-id=\"https:\/\/www.wemos.cc\/en\/latest\/_static\/files\/sch_buzzer_v1.0.0.pdf\" target=\"_blank\">Schematic<\/a><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Compatibility<\/h1>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>D1 Type<\/th><th>Compatible<\/th><th>Reason if not<\/th><\/tr><\/thead><tbody><tr><td><strong>D1 mini<\/strong><\/td><td>Yes<\/td><td><\/td><\/tr><tr><td><strong>D1 mini Pro<\/strong><\/td><td>Yes<\/td><td>Untested<\/td><\/tr><tr><td><strong>D1 mini Lite<\/strong><\/td><td>Yes<\/td><td>Untested<\/td><\/tr><tr><td><strong>D1 32<\/strong><\/td><td>Yes<\/td><td><\/td><\/tr><tr><td><br><br><strong>S2 mini<\/strong><\/td><td>Yes<\/td><td>Untested<\/td><\/tr><tr><td><strong>C3<\/strong><\/td><td>Yes<\/td><td>Untested<\/td><\/tr><\/tbody><\/table><figcaption>Compatibility with D1 boards<\/figcaption><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Anwendungsbereiche\"><\/span>Areas of application<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<ul><li>Signalgeber<\/li><li>Alarm<\/li><li>Warnton <\/li><li>Tastaturr\u00fcckmeldung<\/li><\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ansichten\"><\/span>Views<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-0 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large is-style-default\"><a href=\"https:\/\/www.fambach.net\/en\/?attachment_id=8551\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"596\" data-id=\"8551\" src=\"https:\/\/www.fambach.net\/wp-content\/uploads\/ESPD1MiniSet-Buzzer-front.jpg\" alt=\"\" class=\"wp-image-8551\"\/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><a href=\"https:\/\/www.fambach.net\/en\/?attachment_id=8552\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"666\" data-id=\"8552\" src=\"https:\/\/www.fambach.net\/wp-content\/uploads\/ESPD1MiniSet-buzzer-back.jpg\" alt=\"\" class=\"wp-image-8552\"\/><\/a><\/figure>\n<\/figure>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Programmierung\"><\/span>Programming<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bibliotheken\"><\/span>Libraries<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Es gibt Bibliotheken die ganze Synphonien erlauben, f\u00fcr einen ersten Test ist aber keine n\u00f6tig.<\/p>\n\n\n\n<p>Arduino ESP32 Library V2.0.2<\/p>\n\n\n\n<p>Arduino ESP8266 Library V3.0.2<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Testprogramm\"><\/span>Test programme<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Ich habe das Testprogramm von Wemos verwendet und es etwas angepasst.<\/p>\n\n\n\n<script>\nvar project = \"sfambach\/D1Mini\/tree\/master\/shields\/Buzzer\/examples\/BuzzerTest\";\nvar file = \"\/BuzzerTest.ino\";\nvar test = project + file;\nvar startAt = 18;\nvar endAt = 0;\n\n\ndocument.write('<div a class=\"wp-block-file\" ><a a class=\"wp-block-file__button\" href=\"https:\/\/github.com\/'+project+'\" target=\"_blank\">Link zu Git<\/a>');\ndocument.write('<a a class=\"wp-block-file__button\" href=\"https:\/\/downgit.github.io\/#\/home?url=https:\/\/github.com\/'+project+'\" target=\"_blank\">Download des Projektes mit DownGit<\/a><\/div>');\n\ndocument.write('<div style=\"font-size:1vw\">');\ndocument.write('<script src=\"https:\\\/\\\/gist-it-dot-helloid-roadmap.ew.r.appspot.com\\\/github.com\\\/'+test+'\\?slice='+startAt+':'+endAt+'\"><\\\/script>');\ndocument.write('<\/div>');\n<\/script>\n\n\n\n<h2 class=\"wp-block-heading\">Problems<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Beispiel von Wemos funktioniert bei mir nicht mit dem ESP8266.<\/strong><\/h3>\n\n\n\n<p>Das Beispiel entspricht zwar der Spezifikation funktioniert bei mir mit der akuellen (Version 3.0.2) Arduino Bibliothek nicht. <\/p>\n\n\n\n<p>Ich musste zus\u00e4tzlich auch immer noch die frequenz setzen damit das Programm bei mir seine Arbeit verrichtet.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    analogWriteRange(freq&#91;i]);\r\n    analogWriteFreq(freq&#91;i]);<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fazit\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p>Tut was es soll, f\u00fcr den Erfahrenen sehr unspektakul\u00e4r f\u00fcr den Anf\u00e4nger ein H\u00f6hepunkt.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">More posts<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Other Shields<\/h2>\n\n\n<ul class=\"display-posts-listing\">\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-prototyp-platine\/\">D1 Mini Shield \u2013 Prototype PCB<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-rgb-led-einzeln\/\">D1 Mini Shield \u2013 RGB LED (Individual)<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-rgb-led\/\">D1 Mini Shield \u2013 RGB LED<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-pir-bewegungssensor\/\">D1 Mini Shield \u2013 PIR (Motion Sensor)<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-hr8833-motor\/\">D1 Mini Shield \u2013 HR8833 Motor<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-at8870-motor\/\">D1 Mini Shield \u2013 AT8870 Motor<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-sg30-luftqualitaet\/\">D1 Mini Shield \u2013 SG30 Air Quality Measurement<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-i2c-connector\/\">D1 Mini Shield \u2013 I2C Connector<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-matrix-led-shield\/\">D1 Mini Shield \u2013 Matrix LED Shield<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-oled-64x48\/\">D1 Mini Shield \u2013 OLED 64\u00d748<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">More ESPs <\/h2>\n\n\n<ul class=\"display-posts-listing\">\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/esp-web-serial-bibliothek\/\">ESP WEB Serial Library<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/esp32-c3-seeed-studio-xiao\/\">ESP32-C3 Seeed Studio XIAO<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/esp32-c3-super-mini-board\/\">ESP32-C3 Super Mini Board<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/preview-luatos-esp32-c3-board\/\">Preview \u2013 LuatOS ESP32-C3 Board<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/esp32-bluetooth-gamepad-2\/\">ESP32 Bluetooth Gamepad<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/esp01-relay-platinen-2\/\">ESP01 \u2013 DHT11 Temperature and Humidity Sensor Boards<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/esp01-relay-platinen\/\">ESP01 Relay Boards<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/esp8266-32-wifi-manager\/\">ESP8266\/32 WiFi Manager.<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/d1-mini-shield-prototyp-platine\/\">D1 Mini Shield \u2013 Prototype PCB<\/a><\/li>\n<li class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/preview-esp01-relais-modul\/\">ESP01 \u2013 Relay Board<\/a><\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quellen\"><\/span>Sources<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Sources for the Shield<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.wemos.cc\/en\/latest\/d1_mini_shield\/buzzer.html\" data-type=\"URL\" data-id=\"https:\/\/www.wemos.cc\/en\/latest\/d1_mini_shield\/buzzer.html\" target=\"_blank\" rel=\"noreferrer noopener\">Manufacturer's website<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.wemos.cc\/en\/latest\/_static\/files\/sch_buzzer_v1.0.0.pdf\" data-type=\"URL\" data-id=\"https:\/\/www.wemos.cc\/en\/latest\/_static\/files\/sch_buzzer_v1.0.0.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Schematic<\/a><\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/www.wemos.cc\/en\/latest\/_static\/files\/mlt-8540.pdf\" data-type=\"URL\" data-id=\"https:\/\/www.wemos.cc\/en\/latest\/_static\/files\/mlt-8540.pdf\" target=\"_blank\">Datenblatt Buzzer MLT8540<\/a> (Chinesich)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sources for the boards<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.wemos.cc\/en\/latest\/\">Manufacturer's website<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.wemos.cc\/en\/latest\/_static\/files\/sch_d1_mini_v3.0.0.pdf\">Schematic<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.wemos.cc\/en\/latest\/ch340_driver.html\">CH340 USB Driver<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/arduino-projekte.info\/wemos-d1-mini\/\">https:\/\/arduino-projekte.info\/wemos-d1-mini\/<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.exp-tech.de\/plattformen\/esp8266\/entwicklungsboards\/8898\/wemos-d1-mini\">https:\/\/www.exp-tech.de\/plattformen\/esp8266\/entwicklungsboards\/8898\/wemos-d1-mini<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>With the help of this add-on board, a few sounds can be coaxed from the D1 mini. Facts: A buzzer, nothing more, can be connected to the IOs D5-D8 via a solder bridge. No pre-selection was made in my case. Description: Name D1 D1 32 Input Buzzer, depending on the selected solder bridge BUZZER D5 \/ D6 \/ D7 \/ D8 GPIO 22\/21\/17\/16 \u2026<\/p>\n<a href=\"https:\/\/www.fambach.net\/en\/esp01-neopixel-ring\/\" class=\"read-more-link\">Continue reading <span class=\"screen-reader-text\">\"ESP01 &#8211; neoPixel Ring\"<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a>","protected":false},"author":1,"featured_media":8599,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[591,196],"tags":[136,594,33,148,23,605,111,229],"modified_by":"sfambach","_links":{"self":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/8550"}],"collection":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/comments?post=8550"}],"version-history":[{"count":12,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/8550\/revisions"}],"predecessor-version":[{"id":8603,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/8550\/revisions\/8603"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/media\/8599"}],"wp:attachment":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/media?parent=8550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/categories?post=8550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/tags?post=8550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}