Teensy 4.1 INMP441 Input

[justforfun]

Hi! Sorry, I am very new to this. I have a lot of questions regarding Teensy 4.1 and I2S. Do I need an audio shield when I am going to connect an INMP441 MEMS microphone to the Teensy? Can I have any guide as to how to configure my microphone to the Teensy? I tried looking into the Audio System Design Tool and I am not really sure how to use it. I am really lost and I need to do this. Thanks.

 

[WMXZ]

The INMP441 must be connected in place of the audio shield. However, the connection used by the audio shield may guide how the INMP441 may be connected. Have a look at https://www.micropam.com/microPAM-T4_hardware.html to see how T4.1 is connected to a I2S-MEMS microphone

 

[PaulStoffregen]

Maybe this old thread about a similar MEMS microphone can help?

https://forum.pjrc.com/index.php?threads/teensyduino-1-52-beta-3.60599/page-3#post-238070

 

[PaulStoffregen]

If you're completely new to the audio library, this 31 page tutorial might help. It uses the audio shield, but a lot of the concepts apply to use with other hardware.

PJRC Store

www.pjrc.com

If you scroll down that page, there's a 45 minute walkthrough video of the entire tutorial. If you get stuck or just prefer to watch a demo rather than read the PDF, hopefully the video can help.