Serial Monitor with XIAO not working

Products & Technology Arduino & Seeeduino
2

Hi,
Sometimes the Seeeduino XIAO port may disappear when user programming process fails. we can solve this problem by the following operation:

  • Connect the Seeeduino XIAO to your computer
  • Use tweezers or short lines to short the RST pins in the diagram twice
  • The orange LED lights flicker on and light up.

At this point, the chip enters Bootloader mode and the burning port appears again. Because the samd21 chip has two partitions, one is the Bootloader and the other is the user program. The product will burn a bootloader code in the system memory when it leaves the factory. We can switch modes with a quick reset.

also you need to use SerialUSB instead of Serial.

Src: http://wiki.seeedstudio.com/Seeeduino-XIAO/

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