Getting lower power consumption on Seeed XIAO nRF52840

Your situation is probably different from what we imagine. I ask you a few questions to help us resolve the issue quickly.

  1. Is the Board Support Package version 1.1.8 ?
  2. Is the “Adafruit SPIFlash” library version 4.3.4 ?
  3. What is the pin name (e.g. D2) used for wake-up? And what is connected to this pin?
  4. Please tell us everything that is connected to the XIAO pins without omitting anything. If possible, a connection diagram would be helpful.
  5. Please post your sketch.

The internal pull-up resistor of the nRF52840 is 15k. This means that about 31u-2.1u=29uA of current is passing through the pull-up resistor and out through the wake-up pin. Is something of about 3.3-29u*15k=2.9V connected to the wake-up pin?

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