def __init__(self, port, baud_rate=<NUM_LIT>, fake=False):
<EOL>self.serial = PySerial.Serial()<EOL>self.serial.baudrate = baud_rate<EOL>self.serial.port = port<EOL>self.serial.timeout = <NUM_LIT><EOL>
Constructor: sets up the serial port

If you want to use a USB serial port, then set rts_hw to 0 (False). If you
want to use the RPi seiral port, then you need to use a pin to toggle TX/Rx.
Set rst_hw to any valid BCM pin greater than 0.