Raspberry pi Zero 開啟 USB OTG Serial

echo "dtoverlay=dwc2" | sudo tee -a /boot/config.txt
echo "dwc2" | sudo tee -a /etc/modules
echo "g_serial" | sudo tee -a /etc/modules

sudo systemctl enable getty@ttyGS0.service

Linux 連接方式

screen /dev/ttyACM0 115200