The prototype Vectron65 on breadboard with the VGA Plus v2 and VGA Text Mode cards

2026 Retrocomputer Challenge: Vectron65 Plus Puts The Emphasis On Plus

October 3, 2026 by Tyler August 2 Comments

[Nick Bild] evidently has a soft spot for the 6502, given that his Vectron65 Plus home computer project uses at least one of them, depending on the add-ons. You see, he hasn’t just made a homebrew computer, he’s also produced multiple expansions. One of which, the VGA Plus Text Mode, has its own 6502 co-processor. He’s also produced two versions of a VGA graphics card capable of 640×480 output. We’re still not 100% sure how many entries we are going to count [Nick]’s work as for the contest, since the graphics cards can be used with just about anything, not just the Vectron65, but we do know they’re strong contenders every one.

The video doesn’t really show the graphics, so here’s an example.

We covered the start of the Vectron65 project back in 2019, and it’s only gotten more practical as it has moved off breadboard onto PCB, and into a new version as the 65 Plus with more RAM and GPIO ports. Considering that the original let you game in VR using an add-on we covered, we might have to drop the “nearly” from “nearly practical” when talking about the Plus. Especially when you consider the graphics — we covered first version of 7400-series based VGA graphics card, while the newer V2 differs mostly in doubling the RAM and producing a more stable output. The V2 VGA card can work in tandem with the Text Mode card to write 40-column text to the screen without using up all the 6502 CPU’s cycles, offloading them to the second 6502 on the card with the help of a character ROM. Hey, if Commodore could put a second 6502 in a disk drive, why not? You can check out the whole suite in action in the demo video below. We admit to being particularly tickled by the Hackaday Comment Generator he’s running in BASIC.

If you’re worried about competing with [Nick], don’t worry — the 2026 Retrocomputing contest has multiple categories. You still have a few weeks to do something retro-modern, restomod an old machine, or just do some old-school programming.

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2026 Retrocomputing Challenge: Lunar Lander On The PDP-1

October 2, 2026 by Tyler August 7 Comments

A lot of the retrocomputing world is focused on the 1980s, and for good reason– the home computer revolution was in full swing in that decade, and there is a veritable Cambrian Explosion of capable hardware to play with, emulate or recreate. There’s plenty of retro to look back to before that halcyon decade, though, as [Michael Gardi]’s port of Lunar Lander to the PDP-1 reminds us.

Both Digital Equipment Corporation’s PDP series and the game Lunar Lander are probably iconic enough in their own right to need no introduction, but there’s actually a connection between them. While many people think the game started with Atari’s 1979 arcade cabinet, the first version– then only text based, and called the Lunar Landing Game–actually dates back 10 years before that, and was dreamed up at DEC on a PDP-8. If you’re of a certain vintage, odds are, you probably typed in the BASIC version of the Lunar Landing Game at some point.

This is not that game. Despite the 1959 PDP-1 being more restricted, hardware-wise, than the PDP-8, [Michael Gardi] manages to get Lunar Lander in all of its graphical glory running on the PDP-1. Of course, if you’ve seen SpaceWar you know DEC’s first minicomputer can handle the graphics. You can play the emulated version online, if you’d like, or download it yourself from the link above. There is one PDP-1 that survives in working order, and [Michael] hopes to get the chance to run it there one day on the machine that started hacker culture. We wish him luck!

In the meantime, this may be the most “retro” project in our ongoing retrocomputer contest. There’s no special prize for that superlative, but if you can do older, have at ‘er! There are three weeks left to go back in time and claim both bragging rights and fabulous prizes.

2026 Retrocomputing Challenge: A Homebrew Computer In Only Three ICs

October 2, 2026 by Tyler August 25 Comments

Homebrew computers don’t have to be retrocomputers, but [Just4Fun]’s all-through-hole, 68008-based “68k-MBC” certainly qualifies, so it is a worthy entry in our ongoing contest. While there are both “full” and “lite” hardware configurations, the three-IC “lite” configuration is what first caught our eye. Yes, three: the 68008, an SRAM chip, and a PIC microcontroller that acts as the ROM.

Software is provided by the suitably-retro CP/M68K, or standalone executables, which run on both hardware configurations.

There are four lights, but three chips in the “lite” version of the build.

The “lite” option restricts you to a maximum of 512 KB of RAM and a single serial port, but it looks like you still get I2C and the option to plug in an SD “hard drive” or RTC module however you configure the machine. Through the serial port, you can of course connect a terminal of you choice, or even use a thermal printer. The “full” version has two serial ports, if you want to do both. [Just4Fun] also has a parallel adapter lets you plug in printers with that interface as well. The demo video is below, but be warned that the text-to-speech narration won’t be to everyone’s liking.

We’ve featured other single-board-computers using the 68k before, but this one is a worthy contender in our contest, not least for the impressively low chip count. This contest has gotten oodles of entries, but there’s still time for yours: entries close October 27th.

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DIY Game Console Does It With Optical Discs

September 30, 2026 by Tyler August 14 Comments

Optical media may be dead for video games on the big corporate consoles, but not in [Emmet]’s heart– or on his DIY game console, that he built specifically to use optical media. Not fancy blu-ray or newfangled DVDs, either, but good old fashioned CDs from the Orange Book.

Yeah, he’s not fitting modern AAA flagship games on those disks, but the Intel N150 on the single board computer he’s using isn’t going to power through them, either. That’s fine, though, because there are literally decades of content this machine can handle. That’s why the board is running Batocera, which is a Linux distro tailor-made for retrogaming on x86– and also ARM, but that’s not important here.

He’s using ESP32-S3s to run custom wireless gamepads with BLE, which means he’s got more power in each of them than some of the retro consoles this machine is emulating, but it gets the job done. Unlike some cartridge projects we’ve seen that merely queue up the games, the CDs on this one actually do seem to store the ROM file, along with a shell script to put it in the correct emulator’s library. We might have gone with autorun, but it’s [Emmet]’s console and he’s got it working how he likes.

What really makes this project stand out, in our opinion, is the effort [Emmet] put into custom CD labels and art for the jewel cases. It really makes this feel like an actual game console and not just a PC hooked to a the TV. The 3D printed case doesn’t hurt in that respect, either.

Be it from a nostalgia, as in this project, a need for cheap storage, or the perverse desire to hook it to an NES, optical media seems to be having a bit of a moment. Speaking of moment, we’re going to have to take a moment to come to grips with the fact that CDs have become nostalgic. Didn’t they just replace vinyl?

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Pogo-Bot Goes All Terrain With Compliant Foot

September 30, 2026 by Tyler August 19 Comments

What do you get when you combine a pogo stick, a quadcopter, and engineering students from the University of Toronto? This thing, apparently– a “monopedal hopping robot” that uses a spikey, pivoting foot pad tensioned by what look like elastic bands to keep it upright on all terrain from soft sand to hard ice.

It’s an interesting concept. The thrust from the four propellers is what gives the energy to get the robot moving, but its pogo-like hopping is entirely down to the spring-loaded single legged “landing gear”. Early iterations just used a spike on the end of that leg, but that failed in ways that some might find humorous, which you will see if you watch the video embedded below. Giving the monopod an actual foot with some traction and the ability to pivot and match the terrain works much better– now not only can this robot leap tall fences in a single bound, an errant ice patch won’t send it skittering away.

This isn’t the first one-legged robot we’ve seen; some only use their leg while others have wings, but this odd quadcopter is the first we’ve seen to brave Canadian winter. Continue reading “Pogo-Bot Goes All Terrain With Compliant Foot” →

Open Source Tricorder Is In It For The Science

September 30, 2026 by Tyler August 11 Comments

If you’re reading Hackaday there’s pretty good odds you’re at least somewhat fond of Star Trek. We’d bet good money most of you would quit your jobs today if a Starfleet recruiter showed up. That’s something you’d have in common with [PeterAJansen], who has been working for over a decade now to create something worthy of being called a tricorder. If his latest iteration, the Open Source Science Tricorder Cyberdeck, isn’t there yet, it’s pretty darn close.

Frankly, it looks more usable than Roddenberry’s version.

The “tri” in tricorder means three, but this device has more than three instruments– so did the ones on the show, come to think of it. You won’t be scanning for veteron radiation with this, but you do get a scintillation crystal to get a spectroscopic analysis of beta- or gamma-ray sources; there’s also a visible light spectrometer, thermal camera, and magnetic field camera along with a standard magnetometer and the usual environmental sensors to give you temperature, pressure, and humidity, plus particulate, VOC and CO2 concentration. Enough to explore an alien planet? That’s hard to say, but it seems like enough to explore this one.

The device is based around a Clockwork Pi uConsole, which takes care of the form-factor: a slabtop with a QWERTY keyboard and an IPS display in a nice screen, and a Compute Module 5 to crunch all that data. It might not be quite as stylish as the folding units seen on-screen in Star Trek, but it seems like an eminently practical form factor. There are videos of it in operation as well as being assembled on the GitHub repository, where you can get all the details needed to make your own. It is the Open Source Science Tricorder, after all.

This isn’t the first project we’ve seen chasing tricorder glory, but many of the others were more interested in screen accuracy than science. [Peter]’s earlier “arducorder” was a very notable exception to that trend.

Thanks to [MarcCote] for the tip! If your scanners pick up something interesting in cyberspace, remember our hailing frequencies are always open.

Electromechanical TV Goes 3D With This Light-field Display

September 29, 2026 by Tyler August 3 Comments

A mechanical TV — the kind that makes an image with a Nipkow disk and a single lamp with some help from persistence of vision — is easy enough to wrap your head around. Moving that technique into the third dimension, though? That’s a bit of a head scratcher. Luckily for us [AncientJames] provides a simple visual explanation for how the magic happens.

Instead of a disk doing a raster scan of the display, he’s using a rapidly-spinning drum with holes in it. In place of a single lamp, he’s got an array of LED matrix displays, each 32 pixels by 64 pixels in resolution. The trick is splitting the model up into a light field, so each hole projects its own image of the object at the proper angle.

In this demo there are three matrix displays, though that does limit the viewing angle as they’re arranged as one half of a hexagonal prism — you’d need more screens to get a full 360. The effective resolution through the drum is only about 100 pixels by 48 pixels per eye, but that’s still enough to play DOOM with.

This isn’t the first time this particular [Ancient] has got DOOM going on a volumetric display, and based on previous results, it probably won’t be the last time either. This implementation, which keeps the displays stationary and does not require a pricey laser projector, looks the most accessible to us, as long as you watch your fingers.

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