See also Visuals
- https://github.com/tedyapo/tritiled - optimized LED glow markers designed to last for multiple years on a single lithium coin cell. They can be used wherever you need to mark something in the dark - my first application was marking telescope tripod legs so I wouldn't trip over them. The 3.0 release is now available. This release is software-tunable to run from 1-10 years (and possibly up 20) on a CR2032 cell, and fits into inexpensive "5g" polystyrene cosmetic jars for weatherproofing
- YouTube: A look inside some mains voltage LED tape.
- YouTube: LED "neon". A new and interesting miniature variant.
- FastLED - a fast, efficient, easy-to-use Arduino library for programming addressable LED strips and pixels such as WS2810, WS2811, LPD8806, Neopixel and more. FastLED is used by thousands of developers, in countless art and hobby projects, and in numerous commercial products. FastLED supports popular LEDs including Neopixel, WS2801, WS2811, WS2812B, LPD8806, TM1809, and more. The library runs on a wide range of Arduino and compatible boards, including both AVR- and ARM- based microcontrollers.
- Pixelblaze - an advanced LED pattern development engine and controller. It makes it fast and fun to write new patterns with its web-based live editor and highly optimized expression engine. Pixelblaze can store hundreds of patterns and lets you write new ones by entering mathematical expressions or code that update live as you type. No more time consuming compile, upload, test cycles! Pixelblaze is optimized for speed and can produce hundreds of frames per second for extremely smooth animations. Pixelblaze was designed for APA102 LEDs (aka DotStar). These LEDs are state-of-the-art and provide rock solid updates, faster refresh cycles, and the possibility of a dynamic range well beyond 0-255. Pixelblaze also supports WS2812 (aka NeoPixel) LEDs and WS2801, as well as the compatible clones such as SK9822, and SK6812. 
- https://github.com/scottlawsonbc/audio-reactive-led-strip - Real-time LED strip music visualization using Python and the ESP8266 or Raspberry Pi.
- https://github.com/osresearch/LEDscape - Beagle Bone Black cape and firmware for driving a large number of WS281x LED strips.
- https://github.com/kienankb/LuxBase - A framework and server for controlling analog LED strips with an Arduino and a NEXT LED Strip Driver Module 
- https://github.com/minotor-org/minotor - Minotor is a MIDI-controlled LED matrix software.
- https://github.com/nvbn/soundlights - built on top of cava with Raspberry Pi/ESP8266 and NeoPixel Strip.
- LX Studio - a digital lighting workstation, bringing concepts from digital audio workstations and modular synthesis into the realm of LED lighting control. Generative patterns, interactive inputs, and flexible parameter-driven modulation — a rich environment for lighting composition and performance.
- https://github.com/treeoftenere/Interactivity - A set of scripts to integrate streaming data with LXStudio over OSC for controlling the Tree of Tenere
- https://github.com/polyfloyd/ledcat - Ledcat is simple utility that aims to provide a standard interface for driving LED-strips and such.
- LCD Initialization - The information in this section relates to Character based LCD modules, specifically those controlled by an HD44780 or equivalent. 
- https://github.com/stelgenhof/AiLight - AiLight is a custom firmware for the Ai-Thinker RGBW WiFi light bulb
- https://github.com/arendst/Tasmota - Alternative Firmware for ESP8266 based devices like itead Sonoff, with Web, Timers, OTA, MQTT, KNX and Sensors Support, to be used on Smart Home Systems. Written for Arduino IDE and PlatformIO
- https://github.com/eclecticc/SnowGlobe - picoprojector + fisheye lense
- https://en.wikipedia.org/wiki/0-10_V_lighting_control - one of the earliest and simplest electronic lighting control signaling systems; simply put, the control signal is a DC voltage that varies between zero and ten volts. In production lighting this system was replaced by analog multiplexed systems such as D54 and AMX192, which themselves have been almost completely replaced by DMX512. For dimmable fluorescent lamps (where it operates instead at 1-10 V, where 1 V is minimum and 0 V is off) the system is being replaced by DSI, which itself is in the process of being replaced by DALI.
- https://en.wikipedia.org/wiki/DMX512 - standard for digital communication networks that are commonly used to control stage lighting and effects. It was originally intended as a standardized method for controlling light dimmers, which, prior to DMX512, had employed various incompatible proprietary protocols. It soon became the primary method for linking controllers (such as a lighting console) to dimmers and special effects devices such as fog machines and intelligent lights. DMX has also expanded to uses in non-theatrical interior and architectural lighting, at scales ranging from strings of Christmas lights to electronic billboards. The use of DMX can now be used to control almost anything, reflecting its popularity in theatres and venues.
- DMX Lighting Tutorial Part 1: What is DMX? | UniqueSquared.com
- Channel address values from 0 to 255, light functions mapped to channels with the first as
- Address set on light instrument with dipswitch (binary) or LED
- Serial connections, 512 channels of control, creating a DMX universe
- The DMX Wiki - A Catalogue of all things related to or concerning DMX Lighting and DMX in General
- Open Lighting Project is a multi-faceted effort aimed at accelerating the adoption of new, standardized control protocols, while also providing high quality, reliable, open software for the lighting industry. This site acts as a resource for anyone looking for information about DMX software and the associated control systems, as well as a variety of Open Source and free lighting software.
- osc2ftdidmx - Control your DMX devices via an OSC server that talks to FTDI-DMX USB adapters..
- https://github.com/teenageengineering/dmxlab - Toolkit for designing midi-controlled light shows.
- https://en.wikipedia.org/wiki/RDM_(lighting) - Remote Device Management or RDM is a protocol enhancement to USITT DMX512 that allows bi-directional communication between a lighting or system controller and attached RDM compliant devices over a standard DMX line. This protocol will allow configuration, status monitoring, and management of these devices in such a way that does not disturb the normal operation of standard DMX512 devices that do not recognize the RDM protocol.
- https://en.wikipedia.org/wiki/Art-Net - a protocol for transmitting the lighting control protocol DMX512-A (with RDM) over the User Datagram Protocol of the Internet Protocol suite. The protocol was developed by Wayne Howell and his company, Artistic Licence Engineering (UK) Ltd, is open for implementation with attribution but without charge, and made available as a software development kit for convenience. It is typically implemented as lighting-control nodes in embedded controllers, driven from a lighting desk or similar software operating as a server. Art-Net compatible products are made available by dozens of companies.
- https://en.wikipedia.org/wiki/Digital_Signal_Interface - a protocol for the controlling of lighting in buildings (initially electrical ballasts). It was created in 1991 by Austrian company Tridonic and is based on Manchester-coded 8-bit protocol, data rate of 1200 baud, 1 start bit, 8 data bits (dimming value), 4 stop bits, and is the basis of the more sophisticated protocol Digital Addressable Lighting Interface (DALI).
- https://en.wikipedia.org/wiki/Digital_Addressable_Lighting_Interface - IEC 60929 and IEC 62386 are technical standards for network-based systems that control lighting in building automation. They were established as a successor for 0-10 V lighting control systems, and as an open standard alternative to Digital Signal Interface (DSI), on which it is based.
- Open Lighting Architecture (OLA) - a framework for lighting control information. It supports a range of protocols and over a dozen USB devices. It can run as a standalone service, which is useful for converting signals between protocols, or alternatively using the OLA API, it can be used as the backend for lighting control software. OLA runs on many different platforms including ARM, which makes it a perfect fit for low cost Ethernet to DMX gateways.
- Open Source Lighting Control Software - The Open Lighting Project's goal is to provide high quality, open source lighting control software for the entertainment lighting industry.
- Q Light Controller is a cross-platform application for controlling DMX or analog lighting systems like moving heads, dimmers, scanners etc.
- D::Light is a mobile flexible solution to the control needs of modern performance technology. The graphical user interface has features familiar to the traditional lighting desk user - the main window contains a cue list window, an interactive channel zone, submasters and a keypad - giving intuitive access to D:Light's powerful features. D:Light users can also avail of a standard command-line syntax.
- https://github.com/brunchboy/afterglow - A live-coding lighting controller, building on the Open Lighting Architecture with Clojure and bits of Overtone.
- CHA/V - (CHEAP, HACKY, A/V) is an #open-source, #DIY, #audiovisual, #A/V, #video synthesizer, that has inexplicably been built by civilians around the world, as well as in international workshops and fancy art schools. (ok, got all my impressive-sounding words and hashtags in there, now we can begin communicating like humans). If you are new to video synths, fasten your seatbelt. You just opened up a huge can of wormholes.
- Synkie - a modular open source analog video processor, developed byMichael Egger, Flo Kaufmann and Max Egger. Like the venerable modular Moog synthesizer it lets you toy around with the signal using patch cables – but this time not producing sound but images. It is an instrument for video, a playground, a platform to explore new ways to transform a video signal. Synkie is still in development, we constantly develop new modules – and even the base specifications may still change over time. But right now there’s already enough stuff to have fun playing around and the instrument has already a complexity that gets hard to control…
- QLC+ by Massimo Callegari - a free and cross-platform software to control DMX or analog lighting systems like moving heads, dimmers, scanners etc.
This project is a fork of the great QLC project written by Heikki Junnila that aims to continue the QLC development and to introduce new features. The primary goal is to bring QLC+ at the level of other lighting control commercial softwares. QLC+ runs on Linux, Windows (XP+), macOS (10.7+) and the Raspberry Pi.
- Quantum VJ HD - a simple glitch-style audio visualizer (video generator). It can receive sound from the microphone or from the Line-in port (depends on the system settings). Sound will be converted to the graphic elements byte by byte. The final video can be mixed with the camera stream in real time. Based on the algorithms from the Quantum VJ (pendant). This app is free for all systems, except the Android and iOS.
- https://github.com/revast/dvj - A vj and Dj program by interim_descriptor. original release statement from 2009: "For a decade, I've been working on a DJ + VJ program called "dvj". In short, it gives the user a pair of video-linked turntables: Scratching with a MIDI controller scratches both the audio and video. This is the only program I use at my shows, and I'm quite happy with it."