The updated version of the VU meter code prepared according to the current libraries.

[aGGreSSiv]

INMP441Matrix_RotaryDecoderWithLed2_Test5.zip

VuMeterPCB.zip

Hello, the last version that worked was the ESP32 1.6.0 library; it stopped working when we upgraded to higher versions. You can see the information about the current versions in the screenshots I’ve attached. Additionally, since WiFi is not useful for me, I’m running it with a rotary encoder. I prepared a PCB for this, and I'm using it without any issues. To understand which selection I’m changing on the rotary encoder, I also defined one more WS2812 and placed it next to the encoder. I'm sharing this in case it might be helpful to someone.

Pin 23 and pin 19 on the PCB are connected to a matrix panel and one WS2812, respectively. You can understand which one is connected to which in the code.

You just need to drag and drop the zipped PCB file onto sites like JLCPCB. Also, this code is made for the Lolin ESP32, and the PCB is designed based on this product

best regards