Can an ESP32 Tell When a Saxophone Is Out of Tune?/challenges-projects/element14-presents/b/projects/posts/can-an-esp32-tell-when-a-saxophone-is-out-of-tuneForget squinting at a tiny instrument tuner! Mark Donners combines an ESP32, microphone, addressable LEDs and glass building blocks to create a giant colour-changing tuner for his saxophone Time to Make Beautiful Music with Mark! players.bright...en-USTelligent Community 12RE: Can an ESP32 Tell When a Saxophone Is Out of Tune?https://community.element14.com/challenges-projects/element14-presents/b/projects/posts/can-an-esp32-tell-when-a-saxophone-is-out-of-tuneSat, 31 Oct 2026 03:52:58 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:988200a8-68d2-4321-aa79-94544df2e3e8kmikemoo0<p>Well done, Mark.&nbsp; Literal well played.&nbsp;[emoticon:fbd079a1c4f748c5a234faee215de9cc][emoticon:1435ff2429184e17bc948e4f19178e1e]</p><img src="https://community.element14.com/aggbug?PostID=30362&AppID=502&AppType=Weblog&ContentType=0" width="1" height="1">RE: Can an ESP32 Tell When a Saxophone Is Out of Tune?https://community.element14.com/challenges-projects/element14-presents/b/projects/posts/can-an-esp32-tell-when-a-saxophone-is-out-of-tuneThu, 29 Oct 2026 19:39:23 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:988200a8-68d2-4321-aa79-94544df2e3e8DAB0<p>Cool project.</p><img src="https://community.element14.com/aggbug?PostID=30362&AppID=502&AppType=Weblog&ContentType=0" width="1" height="1">