Update : I finally settled for using i2s with DMA for this. However the SDK does not yet allow to use i2s on multiple ADC channels simultaneously. So I used an unmerged topic from github : https://github.com/espressif/esp-idf/pull/1991 I adapted the code from this for sdk v4.4.1. It allowed me to us...

Hello, I am trying to use DMA with two ADC channels in order to have two readings of a same signal. It means that the ADC writes the data of both channels into the same buffer in memory. However it seems that this buffer has only 256 slots available for both of these channels and the rest is filled ...

Hello, I am trying to read an analog signal through two ADC1 channels. The signal comes from a frequency generator and the idea is to run an FFT with the data acquired. I am using ESP32 with SDK v4.4.1. When using continuous ADC, I am able to get a buffer containing the data from both channels (chan...