def hexToBitStr(hexStr):
    """
    provide the hex string in format 'ab ab ab....
    Returns the bits in string format, as list of bytes
    """

    b = [int(hexStr[i*3:i*3+2],16) for i in range(int((len(hexStr)+1)/3))]

    bytesequence = ['{0:08b}'.format(g) for g in b]
    return bytesequence