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Source : https://cyberblogspot.com/how-to-save-and-restore-esp8266-and-esp32-firmware/

1. Gathering the Board’s Info esptool.py flash_id

2. Save 1MByte or 8Mbit Flash esptool.py --baud 115200 --port COM8 read_flash 0x0 0x100000 fw-backup-1M.bin

3. Save 4MByte or 32Mbit Flash

GluTbl

import logging


# Copied from https://stackoverflow.com/a/56944256
class LogFormat(logging.Formatter):
    BLUE = {"color": "blue"}
    GREEN = {"color": "green"}
    GREY = {"color": "grey"}
    YELLOW = {"color": "yellow"}
    RED = {"color": "red"}

GluTbl

#include <Arduino.h>
#include <Ticker.h>

#define ULTRASONIC_PIN_INPUT      D1
#define ULTRASONIC_PIN_OUTPUT     D4

GluTbl

import os
import shutil
import sys
import traceback
import uuid
import time
import cv2
import numpy as np
from fpdf import FPDF
from pdf2image import convert_from_path, pdfinfo_from_path

GluTbl

#Source code copied from https://github.com/andrisdru/image2stl



#pip3 install numpy-stl pillow argparse
import argparse
import numpy as np
from stl import mesh
from PIL import Image

GluTbl

################Executing Command################


def execution_timer(time_out, cmd_process):
    kill = lambda process: process.kill()
    my_timer = Timer(time_out, kill, [cmd_process])
    try:
        my_timer.start()
        stdout, stderr = cmd_process.communicate()
    finally:

GluTbl

import shlex
import subprocess

def execute_command(command: str, path=None):
    command_splited = shlex.split(command)
    if path is None:
        process = subprocess.Popen(command_splited)
    else:
        process = subprocess.Popen(command_splited, cwd=path)
    process.communicate()

GluTbl

//For digital pins
#define DIGITAL_PIN_COUNT 12
char *digital_pins[] = {"D0", "D1", "D2" , "D3" , "D4" , "D5", "D6", "D7", "D8", "D9", "D10", "D11", "D12", "D13"};
int *valid_digital_pins[] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13};
////////////////////////

//For Aanlogue pin
#define ANALOG_PIN_COUNT 6

GluTbl

All honour goes to http://www.blaicher.com/2013/01/accessing-an-encrypted-full-disc-image-lukslvm/

---

So I typically use a full disc encryption with LVM over LUKS. So assume you have got an image from your harddisk via

dd if=/dev/sda of=image.img

GluTbl

sudo apt update
sudo apt-get install tigervnc-scraping-server
mkdir -p ~/.vnc
vncpasswd
x0vncserver -passwordfile ~/.vnc/passwd -display :0