Hi, costaud I have used a Hantek6022BE bandwith of 20MHz e 48MS/sec. the probe ground was the esp32-wroom-32 GND pin and the probe pin is the IO4 (ws_io_in). of course I have try many other pin bat with no difference. The duty cicle it's result about 60% that is a upper limit for the i2s bus of the ...

Hi everyone, I would like to capture audio via a mems microphone on the pdm bus. I've already purchased an esp32-wroom-32 card with which I'm starting to try. using the configuration below I checked with the oscilloscope that the shape of the clock is poor and also has a duty cycle of 60% contrary t...

Hello everyone, I would like to capture audio through a MEMS PDM microphone (SPH0641LU4H-1) with the ESP32-WROOM-32. Is it true that only I2S0 supports on-chip PDM modes? is it true that I have to use WS_OUT instead of BCK_OUT for the clock? What are the ESP32-WROOM-32 pins that are best suited for ...