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What is STEM? Did you ever want to have a linked card, but without this pair-to-pair limitations? Well, you have internet card. And that is already half of the solution. The other half is to use Stem. Stem is a message transmitter for your OpenComputers devices with internet cards. Using a small OpenOS library you can use Stem to send and receive messages. Unlike the standard `modem` component, Stem-messaging uses not addresses, but `channels`. You can send messages to any channels, and you can subscribe to any number of channels to listen for messages from them.

No spoiler in the title. Just watch the video. EDIT: Apparently someone's ComputerCraft fork is more findable on Google than the original OpenComputers repository, so here's the official source code: https://github.com/asiekierka/lunatic86

OpenScreens for Minecraft Forge 1.12 to 1.12.2 OpenScreens adds more display options for OpenComputers. Curse Link: https://minecraft.curseforge.com/projects/openscreens Holo Screens Holo screens are floating displays with adjustable size and color. Hologram projector model and texture by ZefTheFox Right clicking a holo screen with a dye will change the background color. Right clicking the sides with an empty hand while crou

This is a working clone of Super Mario Bros. (with some missing features ). It was made thanks to the VRAM buffers feature (only available in experimental builds), the game runs quite smoothly and uses the Computronics Sound Card to play music on the same computer. It loads sprites from .bmp files, levels from Tiled (a free level editor) .json file and music is in some custom format that can be converted from MIDI files. This makes the game quite easily moddable. Source code

Program and library for building GPS network. https://github.com/DOOBW/OC-GPS Download: wget https://raw.githubusercontent.com/DOOBW/OC-GPS/master/usr/bin/gps.lua /bin/gps.lua wget https://raw.githubusercontent.com/DOOBW/OC-GPS/master/usr/lib/gps.lua /lib/gps.lua The functionality is the same as in the ComputerCraft. Additional command "flash" allows to upload firmware to EEPROM. When the coordinates are precisely determined, when flashing the position of the microcontroller can be omitted - at the first start it will determine its position from neighboring sate

Ever needed real-world time in OpenComputers? I did today, so I did something about it. realtime realtime is a set of libraries and protocols designed to let you synchronise your computers with the real world, and includes: The realtime library, for taking and keeping time. The realtime-sync daemon, for synchronising your realtime library with the real world The realtime-relay daemon, for synchronising your realtime across the local network. All of these can be downloaded via oppm, or from the Minitel GitHub repository. Additionally, all of these come w

Fuchas One of the best OSes (as said by me) Fuchas in a Nutshell Fuchas is revolutionnary in that it uses drivers instead of component access and support UAC (with separate permissions!) ! It's the end of the era where the program needs to maintain integration with different components, the OS now does it! The driver library will try automatically choosing the best driver, but it can be configured by user. Meaning programs adapt to components with no effort (e.g. Computronics cards) A feature of Fuchas is security. If you do not trust a program, you can control permissions. Each

What's Netcoin? NetCoin is a cryptocurrency designed for OpenComputers, a Minecraft mod that adds computers in the game. It follows Bitcoin's original philosophy: a completely decentralized network of nodes, each one maintaining a ledger with everyone's transactions, grouped into blocks that miners need to create solving the proof-of-work (PoW). What's the crypto behind it? It uses Elliptic Curve Digital Signature Algorithm (ECDSA) to sign transactions and SHA-256 as a PoW. Cryptographic functions are not implemented by software, but OpenComputers provides a component (Data Card) that provide

Hey! I'm asie, and while I'm not an official certified OpenComputers developer, I contribute to the project from time to time. However, for a long time, I've had some types of patches in the pipeline that couldn't quite reach the upstream - fixes and changes like: a screen renderer rewrite, with major performance boosts; updates to JNLua and LuaJ, fixing bugs and significantly improving performance; Lua 5.4.0 support. For the purpose of testing these changes as a way to see if they are ready for mass adoption, I've created a fork of OpenComputers called OC-Staging. It

Minitel Minitel is a simple, efficient networking protocol implementing layers 3, 4 and 5 of the OSI model. It supports automatic configuration and routing over large and small networks. Currently supported platforms include OpenOS, KittenOS NEO (via this package), and embedded devices. Features include: Flood routing with route caching Reliable packet delivery Packet segmentation Ordered delivery Bidirectional, ordered, reliable streams Installation instructions and API documentation can be found in the Github repo, though they can be summa

MineOS is a GUI based operating system for the OpenComputers Minecraft mod. It has extensive customisation abilities as well as an app market to publish your creations among the OS community. For developers there is wonderful illustrated wiki with lots of code examples. List of main features: Multitasking Double buffered graphical user interface Language packs and software localization Multiple user profiles with password authentication Own EEPROM firmware with boot volume choose/format/rename features and Internet Recovery mode File sharing over the local n

BIG UPDATE! I've worked out some updates and a new visual editor for the gui system. To use the gui just download http://pastebin.com/Dfgc6z0T to a computer as /lib/gui.lua and try your best. If you don't want to fight with the placing of elements on the screen, then you want to use the visual editor. It's alpha state, but i hope it will make no errors. The editor will create a full lua code as frame work for your own program in resolution 80x25 like for a tier 2 screen. But you need a tier 3 screen to use the editor it self. The program you can run then on a ti

OpenSolidState for Minecraft 1.12.2 ____________________________________________________ Source Code and builds can be found on Github. Note: Requires Forgelin. General Purpose (E)EPROMs? Have you ever wanted fast storage? How about wanting to boot PsychOS 2 on a uC? Well, now you can! There are two main variants: The card and the drive. The Card! The Drive! Tiers: Tier 1 - Manually erased EPROM, erased with the assembler. 64KiB Tier 2 - Electronically erased! Still 64KiB Tier 3 - Bigger E

Hi all! I mentioned this in IRC but realized I should probably post it here as well. I made a new architecture that runs WebAssembly. It’s available here on CurseForge.

uncpio is a rather simple binary CPIO extractor (File begins with 0x71C7 or 0xC771, made with cpio -oHbin). To acquire uncpio, run pastebin get YbrVjRwa /bin/uncpio.lua To use, make the directory you'll be extracting your CPIO archive to, cd into it, then run uncpio path/to/your/file.cpio And it will extract to the current directory. Currently only works in OpenOS, as far as I know.

There was no IRC library for OpenComputers, so I've made one. Here's a demo bot that uses it: local com = require("component") local event = require("event") local thread = require("thread") local gpu = com.gpu local irc = require("irc") local events = irc.events local env = setmetatable({ irc = irc, events = events, }, {__index = _G}) local client = irc.builder() :connection { host = "irc.esper.net:6667", throttling = { maxDelay = 2, maxThroughput = 5, }, } :auth { nickname = "oc-finger-irc", username = "fingercomp", realname = "OpenComput

Overview Hello there. Some of you may remember KLang. I decided that I should you know, actually work on it. Therefore, I present Triton/TritonLang. Triton is the continuation of KLang, a C++-styled programming language that compiles to Lua. I have no ETA on when it will be done as of the moment, but it is work in progress and I would possibly like to get feedback on my current project status. Hello, world! [Pseudocode] #include <io> int main() { io::info("Hello, world!"); return 0; } Advantages to Lua Headers/easily include libraries Statically and

This program enables you to make servers useful like IRL web servers. Client Minimum requirements relay network card internet card apu Server Minimum Requirements; Wireless network card Configured serverside program Put your paste code in the server program or else it will say Hello. I did this cause nobody else had and I thought it would be useful Server paste code: B7b27pc2 Browser paste code: vkL422Sz I am new to OC and this is my first program

Update 3.0.0: I've added secondary screens to make your control room cooler.

This is an object-oriented library, the main priority of which is the maximum possible performance. It works on the double buffering concept, it has a lot of widgets, animations and custom event handlers support. All programs from the screenshots above are implemented with its help. If you want to develop a fast and beautiful program in just a few lines of code without butthurt - then this library is made for you. Detailed illustrated documentation, installation methods and tons of practical examples are available at: https://github.com/IgorTimofeev/GUI

Sorry for my English, im just Russian. http://codepen.io/Krutoy242/full/xGOgJG/ This converter allows you to open .vox files from awesome MagicaVoxel program and convert them to format for print3d program. Usage Download and open MagicaVoxel. Make model of your dreams. Save it. Open file in my converter written on JavaScript, and it will instantly generate chunks from model and show result, ready to copy-past in OC file for printing. Converter have options: Split to states will split your model in two by X coor

ProjectOC 3 ProjectOC 3 is a little server with focus on OpenComputers. The pack is designed for our server, but can be used standalone too. On our server you have the possibility to access your OC disks using an FTP connection. This way you can code directly on the server using your preferred editor/IDE. We are open for any suggestions and to do some events like game jams if the interest is these. If you want to join the project we recommend you to join our Discord server too. There you can talk wi

KestrelOS GUI-based, Windows-alike, highly customizable, and safe Operating System for common pourposes What's the major GUI-based OS currently available? The amazing system created by Igor, called MineOS (I'm sure everyone by now knows about it). Igor's system is based on OpenOS, that looks like MacOS and is by itself the most amazing system released yet, with all sorts of programs and even 3D libraries which is mind blowing. So why create yet another GUI-based system? There are several reasons why I decided to take on this journey. First of all, the m

I just finished the first version of bundle - a rc application which virtually merges multiple filesystems into a bigger one. You can use it whenever a RAID full of tier 3 HDD isn't enough for your needs. On the picture above, for example, you can see 10 RAIDs with 30 tier 3 HDDs which yield a virtual HDD that can store over 200MB of data. You can also use filesystems of different size and create files bigger than any of the used filesystems since bundle is capable of storing a file on multiple HDDs. If you encounter any bug, please report it on my github repository. Also check out the wi

Hey, can you add some documentation for this? I want to use this for a OS I'm building

This is a draft. Examples of software will be coded later. Concepts Socket: A file on the system which links two programs' communications. OC: Abbreviation for "OpenComputers" OS: Abbreviation for "Operating System" OpenOS: The stock OS for OC computers. Socket: a medium for communication between two or more programs Rationale To standardize any possible IPC implementations Basic Concepts Background programs (or daemons) can be started with a simple wrapper, such as this example code: thread.create(function() shell.execute(ENV, "/bin/daemon.lua") end) Programs can communicate

I made a visual studio code extension for opencomputers available here: https://marketplace.visualstudio.com/items?itemName=subtixx.opencomputerslua and here: https://github.com/Subtixx/vscode-oclua Images:

vTunnel can be used to add bridging over the internet to any existing OpenOS software that uses linked cards. Despite originally being written for Minitel, vTunnel implements a fully-functional linked card emulator and a server that will run under most unix-likes (OpenBSD is currently somewhat flaky, Linux is recommended). You can peruse the page on Github, for documentation and protocol information. Install it with oppm: oppm install vtunnel Additionally, you can read the documentation in-game with man vtunnel

A while back, I've quietly released an unofficial, experimental OpenComputers fork called OC-Staging, available here. The key features as of writing include: Optimized GPU rendering code, providing up to 2x better performance (in terms of frame rendering time), LuaJ and JNLua bugfixes and updates, Native Lua performance improvements, Lua 5.4 support! (currently on lua-5.4.0-beta) This is the feedback thread for this fork, as input is sought before merging the changes back into OpenComputers due to their potentially invasive nature (for bug reports, please use th

Can this run a lua interpreter?

I present you a program for a robot that allows you to mine ore without going down into the caves. Robot, using a geolyzer, can find and mine ore. All features are not yet implemented, so I ask you to test and inform me about a bugs. Requirements: Computer case (tier II or III) Inventory Upgrade (more the better) Inventory Controller Upgrade Hard Disk Drive EEPROM with Lua BIOS Geolyzer RAM (tier I or higher) CPU (any) Hover Upgrade (tier I) Diamond pickaxe or equivalent tool Optional: Crafting

Wow, isn't it annoying to write EEPROMs? Don't you hate how messy they are? Well, I have the utility for you! LuaComp! LuaComp A general purpose Lua preprocessor and minifier. Building To build, either execute luapreproc or luacomp on src/init.lua luapreproc Execute luapreproc init.lua ../luacomp.lua luacomp Execute luacomp init.lua -xO ../luacomp.lua NOTE: Do not use a minifier, it breaks argparse! How-To Merging Lua source files -- myfile.lua local my_lib = {} function my_lib.hello_world() print("Hello, w

You can use the port that is not 80. since i said "SHOULD" and not "MUST". But i'll try to change this for better clarity

It is possible this was implemented elsewhere and I failed to notice it, but I did this as an exercise as exploring OpenComputers. My son and I play The 1.7.10 Pack for our sandbox fun (in survival mode though), and I wanted to see if I could easily use OpenComputers to replace the typical-and-complex nest of level emitters and crafting cards to maintain minimum amounts of certain items in the AE2 ME network. This is not terribly sophisticated, and is just "fire-and-forget" with respects to requesting the crafting operations from the ME Network. As I continue to dabble I may add in chec

Open Extensible Firmware Interface v2.2 DISCLAIMER: FOR LUA ARCHITECTURE, OEFI PRESENTS LITTLE TO NO ADVANTAGES! Lua BIOSes that implements OEFI must allow using conventional booting. Note that OEFI has been made to be more architecture-independent and will support ANY architecture able to read files and CPIO (basically any architecture with basic access to component and bitwise operations). Concepts Application: Executable code booting using OEFI in the EFI1 or EFI2 format. Conventional Booting: OpenComputers default booting method. Often called "BIOS" Opera

Well, first of all, if you only need the message to contain one string, then you are better off by just sending the string as the message, so no need to make a table with that string, serialize the table transforming it into a string which is then send via the modem, once received, transformed back into a table which is then indexed to get the string you want to send... But anyways, I would assume the error with the serialization comes from trying to serialize a nil value. You're using a timeout with your event.pull, that means, event.pull returns nil if no modem_message was received with

Update: Minor bugfix that fixes a crash between the holoscreens and RailCraft - OpenScreens v1.0.1

Fuchas 0.4.0 is almost done The new features are: MineOS installer: AVAILABLE Multi-user: AVAILABLE Dualboot (arleady used for 0.3.0): AVAILABLE CPIO-based installer (very very stable installation and allow updates): AVAILABLE Security! (permissions): AVAILABLE Default unicode support: AVAILABLE Virtual components: AVAILABLE (updated 06/30/2019)

Say hello to liburf's 2nd URF!

This is a Snippets extension for VSCode that allows you to quickly reference modules used in OpenComputer it is available via github and the VSCode marketplace. be advised it is still a VERY early release and is bound to have typos. please let me know if you find any errors or issues. https://marketplace.visualstudio.com/items?itemName=Power5000.opencomputersnippets https://github.com/power-5000/OpenComputerSnippets

I suspected you might be coming from python :). You might be interested in moonscript. I made a simple patch that allows programs to use the shebang syntax in OpenOS i.e #!/usr/bin/moon for i = 1, 5 print i unless i%2 == 0

This program can display the contents of tanks on a big screen with a colored bar that can dynamically change its size. It can show up to 256 128 64 different liquids which are sorted from highest amount to lowest. 5x8 is the optimal size for the screen. Multiple tanks with the same liquids are automatically added together and empty tanks are ignored. This display is split into 2 programs. 1) Server - this receives the tank information and displays it 2) Client - this has the adapter with the tank controller (you can have as many as you like) optimal screen sizes

Features: FlatScreen Panel frameless screen which can be configured to be "rotated/tilted" on the x/y axis and can render transparent (they work as normal Screens, Touchinput will be improved in the final release) CardDock external housing for OpenComputer Cards which can be bound to any machine in the Network Cases additional Tier3 computer cases from ZefTheFox Download on curseForge for Minecraft 1.12.2 https://minecraft.curseforge.com/projects/ocdevices

Do you have gui.lua downloaded? You also need to name it exactly like this: gui.lua Otherwise it won't work.

This is a suggestion on how and why to rework OC's sysyield timeouts. The required fixes basically give ability to implement preemptive multitasking for free. 1. Current implementation of sysyield timeouts is insufficient Currently, it is not a real protection against executor thread hogging. It is only a safeguard, and a very efficient one. Consider the following code: local function dos() while true do end end while true do pcall(coroutine.resume, coroutine.create(dos)) computer.pullSignal(0) end Flash it onto a EEPROM, and throw that into a bare T1 case with j

What should I do?

The optimization patches in OpenComputers's repository are not yet merged into mainline, but you can install lunatic86 regardless! (Just with worse performance.) $ oppm install lunatic86 $ lunatic86 -h

Hi @MaSch An OpenComputers program should never be able to crash your server. Lets do a quick breakdown. Here's your stacktrace: Description: Exception in server tick loop java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextNode(Unknown Source) at java.util.HashMap$KeyIterator.next(Unknown Source) at java.util.AbstractCollection.toArray(Unknown Source) at com.google.common.collect.ImmutableSet.copyOf(ImmutableSet.java:374) at elec332.core.grid.internal.GridEventInputHandler.tickEnd(GridEventInputHandler.java:91) at elec332.core.grid.interna

I enjoy doodling fanart of folks' characters, so I tried to draw a not-as-blocky Sangar chatting with my own character about OpenComputers technology: Chaz Serir hasn't quite figured out the benefits of using a Scrench, but he's looking forward to installing that oversized 192kb stick of RAM into his first computer.

Thanks, that fits with the results I get with my testing! Here's a color table reference that I kinda... over-did (as is my way); it's indexed and includes the 240 main colors plus the 16 greys. Definitely a good resource for anyone who wants to plan color schemes in an image editor before coding them in (feel free to add it to the wiki or wherever, if you like; I happily cede it to you in delayed payment for adding remote component access to the debug card): Yes, if you change the color palette, anything you've drawn in that color will change to the new color. (It's actually