Many thank Sprite for your reply !

I add an XRAY view of Ground plane and just for fun an 3D view of PCB:

Hello everyone!
I’ve made some good progress here—I’ve been working on the PCB, which isn’t easy, but I have something to show you.
First, here’s the BOM (Bill of Materials) for the module—if you spot any inconsistencies or issues with the components, feel free to criticize or suggest improvements ...

Hello again everyone!
Today, I’m sharing my new version—it’s structured into multiple parts, and I believe I’ve fixed the issues you pointed out. I’ve decided to use just a single LDO, which is far more robust in terms of available current. I’ve also opted for a different RGB LED compatible with 3 ...

Thx for your replies !
I'll adjust according to your advises and repost a newest version soon !
Again thx !

Hello all !

I recently created a small module designed to record onboard sound from drones equipped with Betaflight/Inav flight controllers. It's based around an RP2040 and an INMP441 MEMS microphone, with WAV audio files recorded to a MicroSD card via an SPI module.

It works well and I'm happy ...