Two Esoteric Programming Languages, One Interpreter

November 19, 2022 by Elliot Williams 9 Comments

Many of you will have heard of the esoteric programming language Brainf**k_. It’s an example language that’s nearly impossible to use because it’s too simple. It’s basically a Turing computer in code – you can essentially put characters into an array, read them out, increment, decrement, and branch. The rest is up to you. Good luck!

What could be worse? Befunge, a language that parses code not just left-to-right or top-to-bottom, but in any direction depending on the use of ^, v, >, and <. (We love the way that GOTO 10 looks like a garden path in the example.)

Uniting the two, [rsheldiii] brings us BrainFunge, a Brainf**k_ interpreter written in Befunge. And surprisingly, the resulting write-up sheds enough light on both of the esoteric programming languages that they make a little bit of sense. If you try to read along, you’ll definitely be helped out by Esolang Park, which was new to us, and accommodates the non-traditional parsing while displaying the contents of the stack.

If you get a taste of the esoteric, and you find that you’d like a little more, we have a great survey of some of the oddest for you. After cutting your teeth on Befunge, for example, we bet you’ll be ready for Piet.

Brainstorming

November 19, 2022 by Elliot Williams 5 Comments

One of the best things about hanging out with other hackers is the freewheeling brainstorming sessions that tend to occur. Case in point: I was at the Electronica trade fair and ended up hanging out with [Stephen Hawes] and [Lucian Chapar], two of the folks behind the LumenPnP open-source pick and place machine that we’ve covered a fair number of times in the past.

Among many cool features, it has a camera mounted on the parts-moving head to find the fiducial markings on the PCB. But of course, this mean a camera mounted to an almost general purpose two-axis gantry, and that sent the geeks’ minds spinning. [Stephen] was talking about how easy it would be to turn into a photo-stitching macrophotography rig, which could yield amazingly high resolution photos.

Meanwhile [Lucian] and I were thinking about how similar this gantry was to a 3D printer, and [Lucian] asked why 3D printers don’t come with cameras mounted on the hot ends. He’d even shopped this idea around at the East Coast Reprap Festival and gotten some people excited about it.

So here’s the idea: computer vision near extruder gives you real-time process control. You could use it to home the nozzle in Z. You could use it to tell when the filament has run out, or the steppers have skipped steps. If you had it really refined, you could use it to compensate other printing defects. In short, it would be a simple hardware addition that would open up a universe of computer-vision software improvements, and best of all, it’s easy enough for the home gamer to do – you’d probably only need a 3D printer.

Now I’ve shared the brainstorm with you. Hope it inspires some DIY 3DP innovation, or at least encourages you to brainstorm along below.

Welcome Back, Supercon!

November 12, 2022 by Elliot Williams 7 Comments

The last two Novembers, Hackaday’s annual gathering was held in remote mode: Remoticon instead of Supercon. While still recovering from jetlag, I’m reflecting on the pros and cons of live versus virtual events. And wondering how we can combine the virtues of both for next year. Come brainstorm with me!

The blatantly obvious pros of having a live Supercon is the ease of talking to everyone who is there, trading code tips, life experience, and must-see projects. In person, you can physically trade badge add-ons in real time, without waiting for customs to clear the packages. Simply hanging out has a real charm to it, and doing so over shared tacos is even better. Spontaneous collaborations were easy and natural. And finally, while you can watch someone electrocute a twinkie with a neon sign transformer on YouTube, you can’t smell the ozone.

Against this, all of the expensive travel, the aforementioned jetlag for some, and the real-world limitations that only so many people can fit in a given physical space at once.

The best part of Remoticon was hearing from people who wouldn’t have been able to make it to an in-person con, whether it’s because it’s of geography or money. Since everything is online, there’s no missing out, and anyone can freely dip in to one talk or another. The online chat channels were better attended during Remoticon as well – perhaps because they were the only game in town – but that was a more global community.

There’s probably nothing that can be done about the tacos, but what could we do about incorporating the benefits of Remoticon? We did stream one stage live, and we had two chat channels open for commentary the whole time. If you took part remotely in Supercon, let us know how it went, and if you have any suggestions to improve our remote experience for next time. Because in the end, we want Hackaday to be as inclusive and as global as the hacker community itself.

Banner Photo by Poyu Chen.

Supercon Sunday: Check The Live Stream

November 6, 2022 by Elliot Williams 1 Comment

Supercon is entering the final phase: it’s Sunday! But it’s not over yet: there is a phenomenal lineup of talks today, starting at 9:30 AM PST, and we’re streaming the main stage live from the very beginning until the badge-hacking awards ceremony at 5:30 pm. And if you’d like to join in the conversation, head over to the Hack Chat or the Discord.

We kicked off Friday with a full day of badge hacking, workshops, food, drink, and music. What used to be a late-afternoon pre-registration has grown into the early morning hours, and gave people a great opportunity to catch up after two years of remote mode.

Saturday was full-on Supercon, and the talks were phenomenal. We recorded interviews, took tons of photos, and of course recorded the talks given on the DesignLab stage, and we’ll be getting those out to you over the next weeks. (It’s a lot.)

In addition to all the talks, we announced the winners of the 2022 Hackaday Prize! It was a big year for small-scale energy generation and recycling, and all of the winning projects were clever, well tested, and easily replicable. Check them out.

So now that you’re all caught up, settle in for a jam-packed Sunday. See you in the livestream if not in real life!

Supercon Is On! Join Us!

November 5, 2022 by Elliot Williams 4 Comments

Supercon is in high gear, after a full day of badge hacking that went well into the midnight hour. Now it’s time for the talks!

If you’re not here in person, you can still get in on the talks by following the 2022 Hackaday Supercon Livestream, which will be covering all the LACM stage action. We have a great lineup of speakers starting off with a keynote by Joe [Kingpin] Grand at 10:00 AM PDT and ending with the 2022 Hackaday Prize Awards at 7:00 PM — come see who won live!

Of course, talks are only one component of Supercon. The secret sauce has always been the people at the con. If you’re not joining us, we still need you to take part. There is a conference chat on Hackaday.io and on the Hackaday Discord server and all are welcome. Pop in and visit with people at the con, and others around the globe who wish they could have made it in person.

Make sure you’re on the live stream Saturday evening to watch as the Grand Prize is presented on stage during the Hackaday Prize Ceremony. Pop into the chat and ask for updates on badge hacking, the SMD Soldering Challenge, and all of the other shenanigans that make Supercon super.

Hackaday Supercon: Back At Last!

October 29, 2022 by Elliot Williams 7 Comments

I’m unashamed to admit that I’ve really missed in-person hacker conferences over the last two and a half years. And while we’re not out of the water yet, COVID-wise, things are controlled and controllable enough that we felt we could safely hold our smallish, halfway out in the back-alley conference safely. It’s going to be so nice to see all the familiar faces, and meet the first-time Superconnisti as well. Welcome! You’re going to have fun.

For health, money, or other reasons, a lot of people who would like to go still can’t, and that bums me out. Of course there’s no substitute for being there live, but we’re trying our best to spread the Supercon love to everyone out there. If the two years of Remoticon were different, I’m not willing to say they were worse. It was awesome to be able to share live talks on some fantastic hacky topics, typing amongst ourselves instead of chatting in person, and it spanned the globe. There were no borders.

We’re still working on our remote plans – yes, a week before the con – because I don’t think things can ever fully go back to the before-times. That said, we will be streaming the main stage live as always, and you can pretend it’s Remoticon all over again by hanging out in our Discord, or over at the Supercon Hack Chat.

So to those of you attending, it’ll be great to see you in person. The rest of you out there – join us virtually. We’ve been working on this for the last five months now, and next week, it’s go time!

2022 Supercon: Schedule Released, And [Odd Jayy]

October 26, 2022 by Elliot Williams 14 Comments

It’s finally time! We’ve put together the 2022 Supercon Schedule, and you can check out all the talks, workshops, and events in one place – right now.

Badge hacking heating up (photo by @hackerwarehouse)

It all starts off with breakfast on Friday morning to power you up for a full day of badge hacking, workshops, and general mixing and mingling before the Friday night party. Fridays are significantly less formal, but swing by Supplyframe HQ any time to get registered, get your badge, and get a mellow head start on Supercon.

Saturday morning, the talks begin! After a brief introduction and welcome, keynote speaker Joe Grand takes the stage to kick things off. And from then on, it’s two tracks of talks on two stages until your brain explodes. Or at least until the Hackaday Prize Awards ceremony at 7:00 PM, followed by the awards after-party.

Pull yourself out of bed Sunday morning for another full day of stellar talks. And squeeze in some more last minute badge-hacking time somehow, because we close up Sunday evening with the always entertaining badge hacking contest and awards.

Jorvon [Odd Jayy] Moss to Speak

Plus, we’ve got one last bit of great news: Jorvon [Odd Jayy] Moss is giving a talk on his adventures in making companion robots, and his latest forays into adding more intelligence into his animatronic and artistic creations.

So if you haven’t bought your tickets yet, do it. ‘Nuff said. See you at Supercon!

And if you’re not able to make it live, all of the talks on the LACM Stage will be streamed live on our YouTube channel, and you can join in the discussion over at the Hackaday Discord server or on Hackaday.io’s Supercon Chat channel. And all the talks that we can’t stream, we’re recording for later release, so you can always catch up later.