PMW3389 sensor not working with xiao seeed nrf52840

Products & Technology XIAO
7

The 5V supply seems to work fine, but I have a few additional questions.

  1. is it correct that the link is PMW3360 and not PMW3389?
  2. The MOTION pin is connected to GND, what is its function?
  3. The overall soldering is not clean, have you checked the connections?
  4. Does <PMW3389.h> support nRF52840?
  5. Where did you get <PMW3389.h>?
  6. Have you tried “pinMode(D7, OUTPUT);”?