The ESP32 (per its datasheet) supports interrupts from the ADC while in deep sleep mode. It's not clear to me if this requires the ULP or not. Is this currently supported on the LoPy or WiPy? If not, what prerequisites are there and where does it fall on the schedule?
It is through the ULP.
I'm not sure how Pycom will work with the ULP in Python, very curious to see.