https://docs.arduino.cc/hardware/nano-esp32
The Arduino Nano ESP32 is the first ever Arduino board based on a ESP32 microcontroller from Espressif, the NORA-W106 module from u-blox®.
Additional documents
- Cheat Sheet
- Technical documentation (PDF file)
– 7 μA (sic!) consumption in deep sleep mode
With 7 μA deep sleep a candidate for Low-power ESP32 boards