Script to backup the configuration of betaflight/INAV flight controllers

fcbackup.py

#!/usr/bin/env python3

import io
import time
from time import gmtime, strftime

import serial
import serial.tools.list_ports

if __name__ == '__main__':
    comports = serial.tools.list_ports.comports()
    if len(comports) == 1:
        port = 0
        print('Auto-selected port ' + comports[port].device)
    else:
        print('Available COM ports:\n')
        for i, val in enumerate(comports):
            print(str(i) + ': ' + str(val))
        print()
    
        port = int(input('COM Port: '))

    ser = serial.Serial()
    ser.baudrate = 115200
    ser.port = comports[port].device
    ser.timeout = 1
    ser.open()

    sio = io.TextIOWrapper(io.BufferedRWPair(ser, ser))
    sio.write(str('#'))
    sio.flush()
    sio.readlines()
    sio.write(str('diff all\n'))
    sio.flush()
    data = sio.readlines()
    #print(data)
    if not '# version\n' in data:
        print('Failed to read backup.')
        exit(1)
    data[0] = '# ' + data[0]

    firmware = ""
    name = ""

    for i, line in enumerate(data):
        if str(line).startswith('# version'):
            firmware = str(data[i + 1]).split('/')[0][2:].strip()
            print('Firmware: ' + firmware)
        if str(line).startswith('name'):
            name = str(data[i])[5:].replace('\n', '')
            print('Name: ' + name)

    f = open(firmware + '_backup_' + name + '_' + strftime("%Y%m%d_%H%M%S", gmtime()) + '.txt', 'w+')
    for line in data:
        f.write(line)

    f.close()

    sio.write(str('exit\n'))
    sio.flush()
    ser.close()