K-XC1 test

#!/usr/bin/env python3
"""
This script reads data from K-XC1 (https://www.rfbeam.ch/product?id=24)
and prints the data to console.
"""

import serial
import struct


SYNC_LEN = 8
DATA_LEN = 1024
FRAME_LEN = SYNC_LEN + DATA_LEN

buffer = bytearray(FRAME_LEN)
view = memoryview(buffer)
sync = bytearray([0x24, 0x02, 0xa2, 0xe1, 0x5a, 0xd6, 0x19, 0x73])


def reader(port):
    with serial.Serial(port, baudrate=921600) as ser:
        while True:
            ser.readinto(buffer)
            idx = buffer.find(sync)
            if idx > 0:
                ser.read(FRAME_LEN + idx)
            elif idx == 0:
                yield view[SYNC_LEN:]


def printer(serial_port):
    for frame in reader(serial_port):
        data = struct.unpack('<512h', frame)
        print(data)


if __name__ == '__main__':
    port = '/dev/ttyUSB1'
    printer(port)