fix ch340 error on mac
fix ch340 error on mac

fix ch340 error on mac

xbed/Mixly_Arduino,radiumray/Mixly_Arduino,xbed/Mixly_Arduino,xbed/Mixly_Arduino,radiumray/Mixly_Arduino,xbed/Mixly_Arduino,xbed/Mixly_Arduino,xbed/Mixly_Arduino,radiumray/Mixly_Arduino,xbed/Mixly_Arduino,xbed/Mixly_Arduino,radiumray/Mixly_Arduino