Kaluga v1.3 Microphone Example? (AEGHB-192)

[andycarle]

Greetings!

I was wondering if any example code is available that uses the microphone on the Kaluga v1.3 ESP-LyraT-8311A v1.3 board. Or, alternately, if there is a full data sheet with register map and descriptions available for the ES8311.

I have successfully retrieved some audio samples from the microphone over I2S. But the samples are very quiet and my attempts to set the microphone's gain have been unsuccessful so far. I also have not had much luck adjusting the ADC sample rate.

Any guidance would be appreciated.

Thank you,
 - Andy Carle

[tore-espressif]

Hello Andy,

Thank you for your patience.

As you can see, ES8311's manufacturer Everest-Semi does not make their full-datasheets public, so I had to make sure with them whether we are allowed to share this information with you.

You can find latest datasheet and user-guide attached.
ES8311 DS.pdf
ES8311 user Guide.pdf

I'll start working on a better ES8311 example tomorrow.

[andycarle]

Hello @tore-espressif,

Thank you for the update! The documents from Everest-Semi should help us get going here.

I'll look forward to an ES8311 microphone example coming in the future!