Datasheet

And reboot!

Test & Record!

OK that was a lot of effort but now you are ready to rock!

Use the following command to list the available input devices:

you should see a snd_rpi_simple_card

You can record a wav file in mono with this command:

Or, if you have two i2s mics installed, record in stereo with this command:

If all is working correctly, you should see the VU meter react at the bottom of the terminal window

sudo cp my_loader.ko /lib/modules/$(uname -r)

echo 'my_loader' | sudo tee --append /etc/modules > /dev/null

sudo depmod -a

sudo modprobe my_loader

sudo reboot

arecord -l

arecord -D plughw:1 -c1 -r 48000 -f S32_LE -t wav -V mono -v file.wav

arecord -D plughw:1 -c2 -r 48000 -f S32_LE -t wav -V stereo -v file_stereo.wav