gabonator

var net = require('net');
var tunnel = null;
var target = null;

// tunnel server
var serverInfo = {port:8811, host:"public.server.com"};
// target device we want to access on network where this script is running
var targetInfo = {port:1001, host:"ip.local.network"};

function listen()

gabonator

#include "cc1101.h"

class C1101Receiver : public CC1101
{
  enum
  {
    SS = 10,
    MOSI = 11,
    MISO = 12,
    SCK = 13,

gabonator

Cool led flexible led panel

Product: 16x64 16x96 LED Matrix Panel Car Sign Scrolling Display BLE APP Control 5V 2A

Main MCU: artery at32f421
1x mw245b - https://cdn.datasheetspdf.com/pdf-down/M/W/2/MW245-Sunmoon.pdf - octal buffer (74HCT245D) 
9x sm16206s - https://datasheet.lcsc.com/lcsc/2003131816_Shenzhen-Sunmoon-Micro-SM16206S_C121618.pdf - column controller 3x3x16
2x sm5166pf - https://www.waveshare.com/w/upload/8/8b/Sm5166p.pdf - row controller 2x8

Reverse powering:

gabonator

if [[ -z "${DOCKER}" ]]; then
  cat > Dockerfile <<- EOM
    FROM debian:trixie
    WORKDIR /app
    RUN apt update -y --fix-missing && apt upgrade -y
    RUN apt install -y rsyslog build-essential libsystemd-dev systemd
    COPY test.sh .
    ENV DOCKER 1
    ENTRYPOINT ["bash", "test.sh"]
EOM

gabonator

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/xterm@5.3.0/css/xterm.css"/>
<script src="https://cdn.jsdelivr.net/npm/xterm@5.3.0/lib/xterm.js"></script>
<div id="terminal">
<script>
var terminal = new window.Terminal({cursorBlink: true});
terminal.open(document.querySelector('#terminal'));
terminal.onData(e => socket.send(e));

var socket = new WebSocket(document.location.href.split("http").join("ws") + "terminal");
socket.onmessage = msg => terminal.write(msg.data);

gabonator

# During data processing you will face a situation when you will
# need to filter out some data based on string comparison (e.g. process
# only file names which pass some condition). Things get more complicated
# if the condition is meant to be provided by user or as a CLI argument.
#
# Some of the popular methods are following:
#  - wildcard matching (e.g. "*.jpg" which will return only jpeg files)
#  - regex (e.g. ".*\.jpg")
#  - code (e.g. filename.substr(-4) == ".jpg")
#

gabonator

//#define DEBUGGING
#include "WebSocketServer.h"
#include "crypto.h"

bool WebSocketServer::handshake(Client &client) {
    socket_client = &client;
    // If there is a connected client->
    if (socket_client->connected()) {
        // Check request and look for websocket handshake
#ifdef DEBUGGING

gabonator

/*
 reverse engineering of ABcom Cryptobox 600HD mini dvbs box protocol
 
 Firstly I examined android package (since it was easier to get it) "g-mscreen-2-3-11.apk". It
 uses C++ library for implementing control protocol. Then I was trying to capture UPnP communication
 from iphone connected to OSX running wireshark. But without luck. GMScreen allowed to connection
 to box using ip address and port. This traffic was easier to caputre and analyse. Requests by
 client application are human readable json/xml code. Some response packets are compressed using
 zlib.
 

gabonator

// nodejs script for downloading still images from hikvision nvr
// uses request-digest for basic http authenticatication
//
// Still images are available at this url:
//   http://192.168.1.130/ISAPI/Streaming/channels/200/picture?videoResolutionWidth=1920&videoResolutionHeight=1080

var digestRequest = require('request-digest')('user', 'password');
var fs = require('fs');

var cam = 3;

gabonator

// http://ejohn.org/blog/ecmascript-5-strict-mode-json-and-more/
"use strict";
process.title = 'node-serial-ws';

// Websocket
var webSocketsServerPort = 1337;
var webSocketServer = require('websocket').server;
var http = require('http');
var server = http.createServer(function(request, response) {
    // Not important for us. We're writing WebSocket server, not HTTP server