USB Serial: What is Ch340?
You might be thinking of getting the extremely popular FTDI, but they are probably over
CH340
TinyUSB is Awesome! And tutorial about how to use it in SAMD21 board
Unlike the Arduino Uno and Arduino Nano, the Seeeduino XIAO onboard USB is not supported
New Product Post — Higher, Faster, and Stronger.
New products this week: New Arrivals Higher, Faster, and Stronger. — The Olympic motto Here