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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

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

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

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

Hi how to disable Finding? On czech keyboard, [] and {} is wroten with Alt + BN and Alt FG, and with shedit it triggers search. On the normal edit, you could remove the key binding in /etc/edit.cfg

Hey, sorry for the radio silence - at some point i stopped getting notifications when someone posts here I have just pushed an update that should fix a lot of issues with 1.12.2 (better late than never). It also fixes a bug that messed with the calibration itself (it should actually be accurate now). Now to answer some questions It is not possible to have the GUI displayed on multiple monitors. Output only works to one monitor. I also can't hack that in reliably because there's not enough in-game CPU cycles to draw the GUI twice without flickering and run the contro

In September of 2021 I started investigating what it would take to write a LuaPosix compatibility layer for the original ULOS. While it is indeed possible, ULOS's Cynosure kernel simply wasn't designed around that sort of API—it would at best have required a large amount of work and been difficult to accurately reproduce LuaPosix's behavior. There were also a few idiosyncrasies with the system as a whole, and it doesn't work on 256KB of memory, which is unfortunate. Cynosure 2 is my answer to this problem. Its features include, but are not limited to: - Fully pre-emptive multitas

A relay system with multiple nodes (like Factorio Roboports) would probably work well. They could take in packages and sort them to send to other nodes.

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

That is mighty easy. computer.pullSignal = nil

I had this problem quite a long time ago, and I think I fixed it by also updating the settings client-side to match those on the server.

There is a new Stargate mod AUNIS that is looking very good,. and has added in Open Computers support. I was wondering if there would be a way to port this program to work with the new mod? Curse forge: https://www.curseforge.com/minecraft/mc-mods/aunis Git hub: https://github.com/MrJake222/AUNIS/wiki

This is a simple Applied Energistics 2 Stock AutoCrafting monitor. With this programm you can say that you want to keep certain items and amounts in stock. You can specify how many processors you want the program to use. If ingredients are missing the program will tell you in the message column, but not which ingredients. If you want to change or delete an item you have to check the box infront of the item name and the press the change or delete button. The program creates automatically 2 config files, 1 for the items and the other one for some other values (at this ti

Bumping because it's basically been re-written; we're on 2.0 now, and it has some big improvements: Better re-connect logic Multiple connections pcap capture support for the vTunnel bridge with a wireshark plugin for dissecting Minitel packets Additionally, this post will contain a list of known public relays: lain.church, port 4096 luna.nosafe.space, port 4096 (thanks @Adorable-Catgirl )

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

Have you ever wanted to encrypt something but couldn't afford a T2 data card? Well, look no further than icekey-lua and Igloo! Low Level: IceKey IceKey is the low level library. It's no RSA, but it should work for most purposes in OC. If you want to learn more about ICE, click here. Useful if you want to do more with the block cipher, rather than just encrypting files or whatnot. It can be found here. High Level: Igloo Igloo is the high level library, great for encrypting/decrypting files. Automatically uses a CBC and padding. It can be found here. PRs welcome!

1.7.2 had some serious bugs - not sure why you're not using latest builds.use our latest release build on curse ,or even better, try our latest dev builds https://minecraft.curseforge.com/projects/opencomputers/files https://ci.cil.li/

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)

Hey, in these if statements, you need to use relational operators. Since you want to see if you're variable is equal to a certain string, you need the '==' (two equal signs). So you're code would look like this -- local require commands start local component= require (“component”) local sides = require(“sides”) local rs = component.redstone local event = require(“event”) -- local os = require(“os”) remove this, the os lib does not need to be required, I think -- local require commands end -- Main function start local function main() local username, message = event.pul

Thanks for the review. I will make a version 2 (on same post) to add the changes you suggested and some others changes. I will also soon make a more presentable form of the specification.

Typically the GUI and your application are separated because of the reactive nature of the GUI library. Most of your code for reacting to GUI events will go into a GUIObjects event handler. -- # ... myButton.eventHandler = function(app, instance, event) if event == "touch" then -- # react to touch event. Alter state, etc... end end I don't have the time to test this my self but you could try using OpenOS threads to give control back to your main script. -- # ... more stuff up here local thread = require 'thread' -- # Gui logic n stuff... -- # This will now run whenever the

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

There are a couple errors. The first is that the `while` keyword must be lowercase. Also within the `while` loop the if statement is missing the `end` keyword. I believe you'll also need to require the libraries you need before using them in a definition. local component = require "component" local sides = require "sides" local redstone = component.redstone local reactor = component.nc_fission_reactor local function GP() return reactor.getEnergyStored() end local mP, MP = 4000, reactor.getMaxEnergyStored() local MMP, CP = (MP / 4) * 3, GP() while CP > 0 do if CP > MMP then

@BattyCynris When you update OpenComputers (the mod), It doesn't change what is on the computers, it only changes the contents of the OpenOS floppy disk. So updating the in-game computer after the mod update only requires you to insert the OpenOS floppy disk and running "install" again. The tool you linked is basically just for those who can't update their mod (playing on a server with outdated version but need features of a newer version) so don't use it if normal updating is available.

for a polite server load, we let the minecraft server runtime decide when to pick back up our threads, and thus we cannot give lower precision that we currently have.

I didn't edit the init.lua and im not sure what i need to edit. Owner: Gladox114 Name: Gladox114.robot Last error: bad argument #1 (number expected, got string) Number of connected components: 6/12 Component name: computer Address: 02bc007a-42e2-44cb-9f9c-480a27239814

I am currently completely rewriting this project from the ground up. One of the larger changes coming with this is the conversion from a terminal interface to a webpage-like interface. The rewrite will include all of the features the current version does, but presented in an easier to work with format. The pesky installer issues will also be solved, as the new installer will pull files individually from the GitHub repo rather than unpacking a giant serialized table.

What should I do?

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. This topic contains links to all known Minitel protocols. Core protocols (OSI layers 3 through 5): protocol-3.md - describes the format of Minitel packets and basic behavior of each node. protocol-4.md - describes how ordered sequences of packets should be handled. protocol-5.md - describes how Minitel's bidirectional streams work Application layer protocols: FRequest - a simple f

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.

Hi All, Hopefully this is in the right place and going to be helpful to someone! I've come from an older version of Computer Craft and Minecraft to 1.7.10 and OC and I've been brushing off the rust and trying to get things going. Having done the tutorials and messed around I thought I'd try doing a simple(!) tank reading program so I can check the fuel levels of my generator. Turns out that either my Google-foo is weak or that not many people have tried/done it. So below is how I did it with some explanations of techniques I used to work things out (so hopefully you can tell me a bette

it's in the wiki actually.. the event is wrong, the tunnel message is received as a "modem_message". so event.pull("modem_message") should work.