from microcontroller import Pin

GPIO0=Pin(0)
GPIO1=Pin(1)
GPIO2=Pin(2)
GPIO3=Pin(3)
GPIO4=Pin(4)
GPIO5=Pin(5)
GPIO12=Pin(12)
GPIO13=Pin(13)
GPIO14=Pin(14)
GPIO15=Pin(15)
GPIO16=Pin(16)
TOUT=Pin("TOUT")

"""
From introspection of microcontroller.pin on Feather Huzzah running CircuitPython
>>> dir(microcontroller.pin)
['TOUT', 'XPD_DCDC', 'MTMS', 'MTDI', 'MTCK', 'MTDO', 'GPIO2', 'GPIO0', 'GPIO4', 'SD_DATA_2', 'SD_DATA_3', 'SD_CMD', 'SD_CLK', 'SD_DATA_0', 'SD_DATA_1', 'DVDD', 'U0RXD', 'U0TXD']
>>> dir(board)
['ADC', 'GPIO16', 'GPIO14', 'SCK', 'GPIO12', 'MISO', 'GPIO13', 'MOSI', 'GPIO15', 'GPIO2', 'GPIO0', 'GPIO4', 'SDA', 'RX', 'TX', 'GPIO5', 'SCL']
"""

"""
class cpu():
    def frequency(self):
        from machine import freq
        return freq()
"""