mirror of
https://github.com/UberGuidoZ/Flipper.git
synced 2024-12-27 08:50:12 +00:00
272 lines
8.7 KiB
Python
272 lines
8.7 KiB
Python
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import os
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import math
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# Protocol settings: https://phreakerclub.com/447
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class Protocol:
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"""
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Generic OOK communication protocol:
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- name: the protocol's name
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- n_bits: number of bits composing a key
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- transposition_table: how 1s and 0s are translated to .sub format
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- pilot_period: preamble PREPENDED to each key in sub format, empty by default
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- stop_bit: APPENDED to each key in sub format, empty by default
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- frequency: protocol's frequency in Hz, 433920000 by default
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- repetition: number of times to repeat each key, 3 by default
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- key_range: range of keys to generate, None by default
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"""
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def __init__(
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self,
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name,
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n_bits,
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transposition_table,
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pilot_period="",
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stop_bit="",
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frequency=433920000,
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repetition=3,
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key_range=None,
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):
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self.name = name
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self.n_bits = n_bits
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self.transposition_table = transposition_table
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self.pilot_period = pilot_period
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self.stop_bit = stop_bit
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self.repetition = repetition
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self.key_range = key_range
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self.file_header = (
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"Filetype: Flipper SubGhz RAW File\n"
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+ "Version: 1\n"
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+ f"Frequency: {frequency}\n"
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+ "Preset: FuriHalSubGhzPresetOok650Async\n"
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+ "Protocol: RAW\n"
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)
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def key_to_sub(self, key):
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bin_str = f"{key:0{self.n_bits}b}"
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return self.key_bin_str_to_sub(bin_str)
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def key_bin_str_to_sub(self, bin_str, debruijn=False):
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sub = ""
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if not debruijn:
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sub = self.pilot_period
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line_len = 0 # keep lines under 2500 chars
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for bit in bin_str:
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if line_len > 2500:
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sub += "\nRAW_Data: "
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line_len = 0
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sub += self.transposition_table[bit]
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line_len += len(self.transposition_table[bit])
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if not debruijn:
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sub += self.stop_bit
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return sub
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def de_bruijn(self):
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"""
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de Bruijn binary sequence
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credit: https://www.rosettacode.org/wiki/De_Bruijn_sequences#Python
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"""
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alphabet = "01"
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k = 2
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a = [0] * k * (self.n_bits if self.pilot_period == "" else self.n_bits + 1)
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sequence = []
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def db(t, p):
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if t > self.n_bits:
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if self.n_bits % p == 0:
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sequence.extend(a[1 : p + 1])
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else:
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a[t] = a[t - p]
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db(t + 1, p)
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for j in range(a[t - p] + 1, k):
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a[t] = j
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db(t + 1, t)
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db(1, 1)
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db_seq = "".join(alphabet[i] for i in sequence)
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return self.key_bin_str_to_sub(db_seq, True)
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def generate_sub_files(self, n_folders=6):
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"""
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Generate sub files grouped by split nuber of keys
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Directory structure:
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- sub_files
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- protocol_name
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- split_factor
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- split_factor_id.sub
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n_folder: number of folders to create,
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folder [1..n_folders] will contain [2^1..2^n_folders] files,
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each file containing [2^n_bits/2^1..2^n_bits/2^n_folders] keys.
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"""
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if (
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self.n_bits > 12 and self.key_range is None
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): # take up too much space for github
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print(f"Skipping {self.name}, takes up too much space for github")
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return
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base_dir = f"sub_files/{self.name}"
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os.makedirs(base_dir, exist_ok=True)
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# If key_range is defined, generate those keys only
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if self.key_range is not None:
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filename = f"{base_dir}/bf_{self.key_range[0]}-{self.key_range[-1]}.sub"
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with open(filename, "w") as f:
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f.write(self.file_header)
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for key in self.key_range:
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f.write(
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"RAW_Data: " + self.key_to_sub(key) * self.repetition + "\n"
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)
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return
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# Create debruijn.sub
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filename = f"{base_dir}/debruijn.sub"
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with open(filename, "w") as f:
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f.write(self.file_header)
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f.write("RAW_Data: " + self.de_bruijn() + "\n")
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# Generate sets of 2^0, 2^1, .., 2^n_folders .sub files
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splits = [
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int(pow(2, self.n_bits) / _) for _ in [pow(2, _) for _ in range(n_folders)]
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]
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[os.makedirs(f"{base_dir}/{split}", exist_ok=True) for split in splits]
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split_files = [None] * len(splits) # current file per split
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for key in range(pow(2, self.n_bits)):
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for idx, split in enumerate(splits):
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if key % split == 0:
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# close previous file if open
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if split_files[idx] is not None:
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split_files[idx].close()
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filename = f"{base_dir}/{split}/{math.floor(key/(split*2)):03d}_{key/split:03.0f}.sub"
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split_files[idx] = open(filename, "w")
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split_files[idx].write(self.file_header)
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split_files[idx].write(
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"RAW_Data: " + self.key_to_sub(key) * self.repetition + "\n"
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)
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# close all files
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[f.close() for f in split_files if f is not None]
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protocols = [
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Protocol(
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name="CAME-12bit-433",
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n_bits=12,
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transposition_table={"0": "-320 640 ", "1": "-640 320 "},
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pilot_period="-11520 320 ",
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),
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Protocol(
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name="CAME-12bit-433-fast",
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n_bits=12,
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transposition_table={"0": "-250 500 ", "1": "-500 250 "},
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pilot_period="-9000 250 ",
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),
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Protocol(
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name="CAME-12bit-868",
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n_bits=12,
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transposition_table={"0": "-320 640 ", "1": "-640 320 "},
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pilot_period="-11520 320 ",
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frequency=868350000,
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),
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Protocol(
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name="CAME-12bit-868-fast",
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n_bits=12,
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transposition_table={"0": "-250 500 ", "1": "-500 250 "},
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pilot_period="-9000 250 ",
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frequency=868350000,
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),
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Protocol(
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name="Chamberlain-9bit-315",
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n_bits=10,
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transposition_table={"0": "-1000 3000 ", "1": "-2000 2000 "},
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pilot_period="-39000 1000 ",
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stop_bit="-3000 1000 ",
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frequency=315000000,
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),
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Protocol(
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name="Chamberlain-9bit-390",
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n_bits=10,
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transposition_table={"0": "-1000 3000 ", "1": "-2000 2000 "},
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pilot_period="-39000 1000 ",
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stop_bit="-3000 1000 ",
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frequency=390000000,
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),
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Protocol(
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name="Linear-10bit-300",
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n_bits=10,
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transposition_table={"0": "500 -1500 ", "1": "1500 -500 "},
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stop_bit="1 -21500 ",
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frequency=300000000,
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repetition=5,
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),
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Protocol(
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name="Linear-10bit-310",
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n_bits=10,
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transposition_table={"0": "500 -1500 ", "1": "1500 -500 "},
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stop_bit="1 -21500 ",
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frequency=310000000,
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repetition=5,
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),
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Protocol(
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name="NICE-12bit-433",
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n_bits=12,
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transposition_table={"0": "-700 1400 ", "1": "-1400 700 "},
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pilot_period="-25200 700 ",
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),
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Protocol(
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name="NICE-12bit-868",
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n_bits=12,
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transposition_table={"0": "-700 1400 ", "1": "-1400 700 "},
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pilot_period="-25200 700 ",
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frequency=868350000,
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),
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Protocol(
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name="PT-2240-433",
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n_bits=24,
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transposition_table={"0": "450 -1350 ", "1": "1350 -450 "},
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pilot_period="450 -13950 ",
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),
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Protocol(
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name="Spacca_pager-433",
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n_bits=24,
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transposition_table={"0": "320 -960 ", "1": "960 -320 "},
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pilot_period="320 -9920 ",
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frequency=433650000,
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key_range=range(0x11A01C, 0x11A0E4), # 300 keys
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),
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Protocol(
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name="Ansonic-434",
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n_bits=12,
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transposition_table={"0": "-1111 555 ", "1": "-555 1111 "},
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frequency=434075000,
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pilot_period="-19425 555 ",
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),
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Protocol(
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name="Holtek-315",
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n_bits=12,
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transposition_table={"0": "-870 430 ", "1": "-430 870 "},
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frequency=315000000,
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pilot_period="-15480 430 ",
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),
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Protocol(
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name="Holtek-433",
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n_bits=12,
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transposition_table={"0": "-870 430 ", "1": "-430 870 "},
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pilot_period="-15480 430 ",
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),
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Protocol(
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name="Holtek-868",
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n_bits=12,
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transposition_table={"0": "-870 430 ", "1": "-430 870 "},
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frequency=868350000,
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pilot_period="-15480 430 ",
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),
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Protocol(
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name="Holtek-915",
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n_bits=12,
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transposition_table={"0": "-870 430 ", "1": "-430 870 "},
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frequency=915000000,
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pilot_period="-15480 430 ",
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),
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]
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for p in protocols:
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# TODO multithread this
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p.generate_sub_files()
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print(f"{p.name} done")
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