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Python script to generate Flipper RAW .sub files from OOK bitstreams
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#!/usr/bin/env python3 | |
from typing import Iterable, Union, Any | |
# freq: frequency in Hz | |
# zerolen: length of space bit in μs | |
# onelen: length of mark bit in μs | |
# repeats: number of times to repeat sequence | |
# pause: time to wait in μs between sequences | |
# bits: string of ones and zeros to represent sequence | |
def gen_sub(freq, zerolen, onelen, repeats, pause, bits): | |
res = f"""Filetype: Flipper SubGhz RAW File | |
Version: 1 | |
Frequency: {freq} | |
Preset: FuriHalSubGhzPresetOok650Async | |
Protocol: RAW | |
""" | |
if pause == 0: | |
# Pause must be non-zero. | |
pause = zerolen | |
data = [] | |
prevbit = None | |
prevbitlen = 0 | |
for bit in bits: | |
if prevbit and prevbit != bit: | |
data.append(prevbitlen) | |
prevbitlen = 0 | |
if bit == '1': | |
prevbitlen += onelen | |
else: | |
prevbitlen -= zerolen | |
prevbit = bit | |
if prevbit == '1': | |
data.append(prevbitlen) | |
data.append(-pause) | |
else: | |
data.append(prevbitlen - pause) | |
datalines = [] | |
for i in range(0, len(data), 512): | |
batch = [str(n) for n in data[i:i+512]] | |
datalines.append(f'RAW_Data: {" ".join(batch)}') | |
res += '\n'.join(datalines) | |
return res | |
# From Wikipedia | |
def de_bruijn(k: Union[Iterable[Any], int], n: int) -> str: | |
"""de Bruijn sequence for alphabet k | |
and subsequences of length n. | |
""" | |
# Two kinds of alphabet input: an integer expands | |
# to a list of integers as the alphabet.. | |
if isinstance(k, int): | |
alphabet = list(map(str, range(k))) | |
else: | |
# While any sort of list becomes used as it is | |
alphabet = k | |
k = len(k) | |
a = [0] * k * n | |
sequence = [] | |
def db(t, p): | |
if t > n: | |
if n % p == 0: | |
sequence.extend(a[1 : p + 1]) | |
else: | |
a[t] = a[t - p] | |
db(t + 1, p) | |
for j in range(a[t - p] + 1, k): | |
a[t] = j | |
db(t + 1, t) | |
db(1, 1) | |
return "".join(alphabet[i] for i in sequence) | |
def debruijn(freq, zerolen, onelen, encoding, bitlen, alphabet=2): | |
def encode(bit): | |
return encoding[bit] | |
return gen_sub(freq, zerolen, onelen, 1, 0, ''.join(encode(b) for b in de_bruijn(alphabet, bitlen))) | |
TOUCH_TUNES_COMMANDS = {'On_Off': 0x78, | |
'Pause': 0x32, #0xB3, | |
'P1': 0x70, #0xF1, | |
'P2_Edit_Queue': 0x60, | |
'P3_Skip': 0xCA, | |
'F1_Restart': 0x20, | |
'F2_Key': 0xA0, | |
'F3_Mic_A_Mute': 0x30, | |
'F4_Mic_B_Mute': 0xB0, | |
'Mic_Vol_Plus_Up_Arrow': 0xF2, | |
'Mic_Vol_Minus_Down_Arrow': 0x80, | |
'A_Left_Arrow': 0x84, | |
'B_Right_Arrow': 0xC4, | |
'OK': 0x44, #0xDD, | |
'Music_Vol_Zone_1Up': 0xD0, #0xF4, | |
'Music_Vol_Zone_1Down': 0x50, | |
'Music_Vol_Zone_2Up': 0x90, #0xF6, | |
'Music_Vol_Zone_2Down': 0x10, | |
'Music_Vol_Zone_3Up': 0xC0, #0xFC, | |
'Music_Vol_Zone_3Down': 0x40, | |
'1': 0xF0, | |
'2': 0x08, | |
'3': 0x88, | |
'4': 0x48, | |
'5': 0xC8, | |
'6': 0x28, | |
'7': 0xA8, | |
'8': 0x68, | |
'9': 0xE8, | |
'0': 0x98, | |
'Music_Karaoke(*)': 0x18, | |
'Lock_Queue(#)': 0x58} | |
def encode_touchtunes(command, pin=0x00): | |
#Syncword | |
frame = 0x5D | |
#PIN | |
for bit in range(8): | |
frame <<= 1 | |
if pin&(1<<bit): | |
frame |= 1 | |
#Insert button code and it's complement | |
frame <<= 16 | |
frame |= (command << 8) | |
frame |= (command ^ 0xFF) | |
#Convert to raw signal | |
#0 symble == 10 && 1 symble == 1000 | |
ook = "" | |
for i in range(8+8+16): | |
if (frame & 0x80000000): | |
ook +="1000" | |
frame <<=1 | |
else: | |
ook += "10" | |
frame <<=1 | |
return "1"*16 + "0"*8 + ook + "1000" | |
if __name__ == '__main__': | |
# https://github.com/samyk/opensesame/blob/48b7d25c9d7aa3e2ac5cadfdcb2db1c78e001565/garages.h | |
with open('10bit-310mhz.sub', 'w') as f: | |
print(debruijn(310000000, 500, 500, {'0': '1000', '1': '1110'}, 10), file=f) | |
with open('9bit-390mhz.sub', 'w') as f: | |
print(debruijn(390000000, 500, 500, {'0': '1000', '1': '1110'}, 9), file=f) | |
with open('9bit-315mhz.sub', 'w') as f: | |
print(debruijn(315000000, 500, 500, {'0': '1000', '1': '1110'}, 9), file=f) | |
with open('10bit-300mhz.sub', 'w') as f: | |
print(debruijn(300000000, 500, 500, {'0': '1000', '1': '1110'}, 10), file=f) | |
with open('nscd.sub', 'w') as f: | |
print(debruijn(318000000, 500, 500, {'0': '100000000100000000', | |
'1': '111111110100000000', | |
'2': '111111110111111110'}, 9, alphabet=3), file=f) | |
# https://github.com/jimilinuxguy/Tesla-Charging-Port-Opener | |
with open('tesla.sub', 'w') as f: | |
print(gen_sub(315000000, 400, 400, 10, 25562, '101010101010101010101010100010101100101100110010110011001100110011001011010011010010110101001010110100110100110010101011010010110001010110010110011001011001100110011001100101101001101001011010100101011010011010011001010101101001011000101011001011001100101100110011001100110010110100110100101101010010101101001101001100101010110100101'), file=f) | |
# Touch Tunes jukebox (https://github.com/notpike/The-Fonz/blob/master/The_Fonz.py) | |
pin = 0 | |
for cmdname, cmd in TOUCH_TUNES_COMMANDS.items(): | |
with open(cmdname + '.sub', 'w') as f: | |
print(gen_sub(433920000, 566, 566, 1, 0, encode_touchtunes(cmd, pin)), file=f) |
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