{"id":7044,"date":"2026-07-04T09:41:44","date_gmt":"2026-07-04T07:41:44","guid":{"rendered":"https:\/\/www.pschatzmann.ch\/home\/?p=7044"},"modified":"2026-07-04T10:32:32","modified_gmt":"2026-07-04T08:32:32","slug":"usb-audio-class-2-for-stm32-arduino","status":"publish","type":"post","link":"https:\/\/www.pschatzmann.ch\/home\/2026\/07\/04\/usb-audio-class-2-for-stm32-arduino\/","title":{"rendered":"USB Audio Class 2 for STM32 Arduino"},"content":{"rendered":"<p>In my <a href=\"https:\/\/www.pschatzmann.ch\/home\/2026\/06\/22\/usb-audio-class-2-0-for-arduino\/\">last blog<\/a>, I described my <strong>USB Audio Class 2<\/strong> implementation. I was wondering if this functionality can also be used for <strong>STM32 micocontrollers<\/strong>.<\/p>\n<p>Since the solution relies on the <a href=\"https:\/\/github.com\/adafruit\/Adafruit_TinyUSB_Arduino\">Adafruit_TinyUSB_Arduino<\/a> library, I was running into the issue that there is only a preliminary support for <strong>STM32-F4<\/strong> micocontrollers. I decided to <strong>exend the support<\/strong> for the <strong>STM32-F7 and\u00a0 STM32-H7.<\/strong><\/p>\n<p>You just need to install corresponding <a href=\"https:\/\/github.com\/pschatzmann\/Adafruit_TinyUSB_Arduino\/tree\/stm32\">stm32 branch from my fork e.g\u00a0 with<\/a><\/p>\n<pre><code>cd ~\/Documents\/Arduino\/libraries   \r\ngit clone -b stm32 https:\/\/github.com\/pschatzmann\/Adafruit_TinyUSB_Arduino.git    `\r\n<\/code><\/pre>\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div data-message-author-role=\"assistant\" data-message-id=\"cebc0458-5748-4ba0-b7c1-8cda18a4e332\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\">\n<p data-start=\"0\" data-end=\"132\" data-is-last-node=\"\" data-is-only-node=\"\" class=\"PDq2pG_selectionAnchorContainer\">In the ArduinoTools menu, make sure the <strong>USB Support<\/strong> setting is set to <strong data-start=\"70\" data-end=\"78\">None<\/strong> to avoid conflicts with the STM32 USB implementation.<span aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"><\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>So far I have only tested the solution with a <a href=\"https:\/\/www.pschatzmann.ch\/home\/2024\/07\/25\/the-power-of-stm32h7-microcontrollers\/\">DevEBox STM32H7XX<\/a> microcontroller. You can help me by running tests on further variants and let me know about the working variants and\/or issues.<\/p>\n<p>Here is a link to <a href=\"https:\/\/www.pschatzmann.ch\/home\/tag\/stm32\/\">my further STM32 related blogs<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In my last blog, I described my USB Audio Class 2 implementation. I was wondering if this functionality can also be used for STM32 micocontrollers. Since the solution relies on the Adafruit_TinyUSB_Arduino library, I was running into the issue that there is only a preliminary support for STM32-F4 micocontrollers. I [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7045,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[20,22],"tags":[45],"class_list":["post-7044","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino","category-machine-sound","tag-stm32"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>USB Audio Class 2 for STM32 Arduino - Phil Schatzmann<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pschatzmann.ch\/home\/2026\/07\/04\/usb-audio-class-2-for-stm32-arduino\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"USB Audio Class 2 for STM32 Arduino - Phil Schatzmann\" \/>\n<meta property=\"og:description\" content=\"In my last blog, I described my USB Audio Class 2 implementation. I was wondering if this functionality can also be used for STM32 micocontrollers. Since the solution relies on the Adafruit_TinyUSB_Arduino library, I was running into the issue that there is only a preliminary support for STM32-F4 micocontrollers. 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