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@elementzonline
elementzonline / esp32_dualcore_example.ino
Last active May 14, 2025 05:03
ESP32 Dualcore usage with FastLED - Not working in Platformio
#include <Arduino.h>
#include <FastLED.h>
TaskHandle_t Task1;
TaskHandle_t Task2;
#define FRAMES_PER_SECOND 1
#define DATA_PIN_KICK 15 //144er roll
@NullArray
NullArray / MAC-by-Vendor.txt
Created June 3, 2019 23:08
List of valid MAC adresses sorted by vendor
Misc MACs:
Num MAC Vendor
--- --- ------
0000 - 00:00:00 - XEROX CORPORATION
0001 - 00:00:01 - XEROX CORPORATION
0002 - 00:00:02 - XEROX CORPORATION
0003 - 00:00:03 - XEROX CORPORATION
0004 - 00:00:04 - XEROX CORPORATION
0005 - 00:00:05 - XEROX CORPORATION
0006 - 00:00:06 - XEROX CORPORATION
@nobojithalder
nobojithalder / License Sublime Text 3.2.2.md
Last active August 10, 2025 05:48
License for Sublime Text Version 3.2.2, Build 3211

If anyone's looking for a solution for licensing Sublime Text!

Here goes an easy tutorial on how to register, Sublime Text Version 3.2.2, Build 3211

  • Go to https://hexed.it/
  • Click on "Open file" and select "sublime_text.exe" executable file. [This 'sublime_text.exe' file should be located at C:\Program Files\Sublime Text 3]
  • Go to "Search" and in "Search for" field, search for "97 94 0D" and click "Search now" button.
  • One result will appear below, click on it.
@gfodor
gfodor / ffmpeg-minimalist-build-nvenc-static.md
Last active January 20, 2023 14:55
Static FFmpeg build on Ubuntu 16.04 with Nvidia NVENC enabled.

Minimalist static FFmpeg build on Ubuntu 18.10 with Nvidia NVENC enabled.

Original guide with a standard build is here.

With this guide, I'm adding more instructions to enable support for NVIDIA CUVID and NVIDIA NPP for enhanced encode and decode performance.

First, prepare for the build and create the work space directory:

cd ~/

@chrisswanda
chrisswanda / WireGuard_Setup.txt
Last active January 1, 2026 00:05
Stupid simple setting up WireGuard - Server and multiple peers
Install WireGuard via whatever package manager you use. For me, I use apt.
$ sudo add-apt-repository ppa:wireguard/wireguard
$ sudo apt-get update
$ sudo apt-get install wireguard
MacOS
$ brew install wireguard-tools
Generate key your key pairs. The key pairs are just that, key pairs. They can be
@themikefuller
themikefuller / aes-gcm.js
Created October 15, 2018 02:07
AES-GCM Encryption and Decryption Examples using Web Crypto (subtle.crypto) JavaScript API
async function generateKey() {
return await crypto.subtle.generateKey({
"name":"AES-GCM",
"length":256
},true,['encrypt','decrypt']);
}
async function exportKey(key) {
return await crypto.subtle.exportKey('jwk', key);
}
@sam016
sam016 / AllGattCharacteristics.java
Last active December 19, 2025 10:37
Bluetooth GATT Services & Characteristics
package com.sam016.vsflatomation.service.ble;
import java.util.HashMap;
import java.util.UUID;
public class AllGattCharacteristics {
private static HashMap<String, String> attributes = new HashMap();
static {
attributes.put("00002a00-0000-1000-8000-00805f9b34fb", "Device Name");
@ezimuel
ezimuel / decrypt.php
Created April 26, 2018 13:07
Decrypt a file in PHP form an encrypted file with OpenSSL CLI
<?php
/**
* Decrypt a file generated with the command line:
* openssl enc -aes-256-cbc -in file-to-encrypt -out encrypted-file -k password
*
* To decrypt:
* php decrypt.php encrypted-file password decrypted-file
*
* NOTE: this script has been tested with OpenSSL v.1.1, for old version
* please check if you need to use MD5 instead of SHA256 in EVP_BytesToKey()
@brannondorsey
brannondorsey / upnp-tomfoolery.md
Created April 20, 2018 03:58
UPnP Tomfoolery

UPnP Tomfoolery

Turns out, UPnP is terrible when it comes to security. The entire protocol exists to have devices easily find and connect to one another without any authentication at all. This is all good fun to poke around with. Here are a few tools and notes I've found along the way.

UPnP devices can be found by listening to UDP packets on port 1900. To actively discover these services on your network, send an HTTP M-SEARCH request to the default UDP mulicast address: 239.255.255.250.

There are some great Linux tools that make interfacing with all of these stuff a synch:

sudo apt update
@elklein96
elklein96 / self_signed_certs.md
Created February 14, 2018 04:32
A quick guide for creating self-signed certificates using OpenSSL

Creating a Self-Signed Certificate

Prerequisites

  • You'll need to install OpenSSL to create and sign certificates.
    • Linux: sudo apt-get install openssl
    • MacOS: brew install openssl

Getting Started