Wiring for i2s_adc_dac example

[apuder]

Hi,

I'd like to try this example here:
https://github.com/espressif/esp-idf/tr ... 2s_adc_dac

The README simply says to which GPIO pins to connect the speakers and microphone. Anyone out there who can point me to a specific schematic on how to build the required circuit? I am especially interested in the way a microphone (or audio-out from a 3.5mm jack) need to be connected to GPIO 36.

TIA,
AP