jblang

TPM2 Protocol Implementation

Introduction

Frame data is transferred inside packets (similar to DMX, for example). A frame is an image representing a matrix or a light scene.

The packets start and end with one-byte characters. In between are a few control bytes followed by the payload. There is no set size for a payload; it is transmitted with each packet. This makes the protocol quite flexible. There are enough bytes in a single packet for an RGB matrix with 21,845 pixels, but if you just want to control an RGBW lamp, that only requires 9 bytes. The variable frame size means there is no overhead, allowing for maximum transfer speed.

TPM2 Packet Structure

dcat

#!/usr/bin/env perl -w
use strict;
use utf8;

sub quote_cb {
	my ($data, $mod, $mod_data, $msg) = @_;
	
	if ($msg =~ /^>/) {
		$msg="\x03" . int(rand(15)) . $msg;
	}

Voltasalt

OldRoot

Chapter 1: Seeding

It all started on July 11th, 2014. User /u/LewisGreen submitted this post to /r/Minecraft. LewisGreen got a private message from /u/OldRoot, containing an image link and the text "This is the beginning. Those who are pure will see what hides in the darkness". The image was a very dark screenshot of Minecraft in the forest, with a silhouette of a character in the background. /u/-Neroren- started the hunt. He brightened the image, revealing a transparent link to a SoundCloud track called "it has begun". It was a .wav sound file, which when run through spectrogram software revealed a message. "silentraven"

hexagon5un

## This is where you want the entire toolchain to live
## You should run this script from within the destination directory, or 
##  redefine the BASE variable to fit your lifestyle.
BASE=$(pwd)

echo
echo [getESP32.sh]: Checking for system prerequisites
[[ $(which pacman) ]] && sudo pacman -S --needed gcc git make ncurses flex bison gperf python2-pyserial wget 2>/dev/null
[[ $(which apt-get) ]] && sudo apt-get install git make libncurses-dev flex bison gperf python python-serial wget 2>/dev/null

ahupowerdns

LUA Record Type for Lua-powered DNS records for standards based fail-over and geographical load balancing

GitHub branch -> https://github.com/ahupowerdns/pdns/tree/luarec

Recently, many zone owners could not migrate away from Dyn since they were benefiting from non-standardised DNS-based failover and geographical loadbalancing features. What you see below is an attempt to get standards based but flexible equivalents of these currently proprietary features. Here is a zone:

$TTL 60
lua.br. IN      SOA     a.lua.br. nstld.verisign-grs.com. (
        2016032300      ; Serial
        14400           ; Refresh

kriegsman

#include <FastLED.h>

// fadeTowardColor example code.
//
// Sample code that includes a function for fading one RGB color toward a target RGB color
// Also includes a function for fading a whole array of pixels toward a given color
//
// Both of these functions _modify_ the existing color, in place.
//
// All fades are done in RGB color space.

cryzed

Disclaimer: Please follow this guide being aware of the fact that I'm not an expert regarding the things outlined below, however I made my best attempt. A few people in IRC confirmed it worked for them and the results looked acceptable.

Attention: After following all the steps run gdk-pixbuf-query-loaders --update-cache as root, this prevents various gdk-related bugs that have been reported in the last few hours. Symptoms are varied, and for Cinnamon the DE fails to start entirely while for XFCE the icon theme seemingly can't be changed anymore etc.

Check the gist's comments for any further tips and instructions, especially if you are running into problems!

Screenshots

Results after following the guide as of 11.01.2017 13:08: