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from mcr12_serial import BarcodeScanner

bcd = BarcodeScanner("/path/to/serial/device", baudrate=9600)

barcode1 = bcd.scan()  # Same as bcd.scan(0)
# The scanner will start scanning indefinitely until a barcode is
# scanned.

barcode2 = bcd.scan(5000)
# The scanner will start scanning. If after 5000 milliseconds no
# barcode has been scanned, a TimeoutError is raised.

bcd.stop()
# Stop scanning. Not really useful here as the scanner stops scanning
# automatically after a barcode has been scanned or after the timeout
# has expired. However it may be useful if you call the scan() method
# asynchronously or if you need to handle a KeyboardInterrupt to stop
# scanning after calling the scan() method.

bcd.config("013300")
# Edit the scanner configuration. "013300" must be replaced with a
# configuration code.