The DAC is only 8bit on the ESP32, and the ADC has some linearity and offset issues, which can be calibrated for but would need to be calibrated for every device since the non-linearity in my experience is not consistent across a batch of ESP32s.



Ok, what chipset or Arduino unit could you ...

Thanks, that was exactly I was looking for!

Hi,

I need to connect this SD card readerhttps://aliexpress.com/item/32583289463.html and this ESP-32 board https://aliexpress.com/item/32799253567.html. How can I have it done?