Update lcd.py

        nibble = d4 | d5 << 1 | d6 << 2 | d7 << 3

        return rs, rw, nibble

    def seek_start(self, data: [int]):

        tx, *data = data

        rs, rw, nibble = self.extract(tx)

        while not rs or not rw or nibble != 0b0011:

            tx, *data = data

            rs, rw, nibble = self.extract(tx)

        data = [tx] + [data]

    def process_data(self, data: [int]) -> [LCDMessage]:

        data = seek_start(data)

        messages = []

        while len(data) >= 2:

            high_tx, low_tx, *data = data