UART(0, baudrate=38400, bits=8, parity=None, stop=1) UART(1, baudrate=38400, bits=8, parity=None, stop=1) UART(0, baudrate=1000000, bits=8, parity=None, stop=1) UART(1, baudrate=1000000, bits=8, parity=None, stop=1) True True True True True True True bytearray(b'1\x00\x00') True bytearray(b'23\x00') True True True True True True True True True True True True True True True True Pin('GP12', mode=Pin.IN, pull=Pin.PULL_NONE, drive=Pin.MED_POWER, alt=-1) Pin('GP13', mode=Pin.IN, pull=Pin.PULL_NONE, drive=Pin.MED_POWER, alt=-1) Exception Exception