Vintage Computer Festival East Reboots This Weekend

October 6, 2021 by Tom Nardi 13 Comments

We don’t have to tell the average Hackaday reader that the last two years have represented a serious dry spell for the type of in-person events that our community has always taken for granted. Sure virtual hacker cons have their advantages, but there’s nothing quite like meeting up face to face to talk shop with like-minded folks and checking out everyone’s latest passion project.

Luckily for classic computer aficionados, especially those on the East Coast of the United States, the long wait is about to end. After being forced to go virtual last year, Vintage Computer Festival East will once again be opening their doors to the public from October 8th to the 10th at the InfoAge Science & History Center in Wall, New Jersey. Attendees will need to wear a mask to gain access to the former Camp Evans Signal Corps R&D laboratory, but that’s a small price to pay considering the impressive list of exhibits, presentations, and classes being offered.

In fact, it’s shaping up to be the biggest and best VCF East yet. The Friday classes cover a wide range of topics from CRT repair to implementing a basic video controller with a FPGA, and the list of speakers include early computer luminaries such as Michael Tomczyk, the Product Manager for the VIC-20, and Adventure International founder Scott Adams. A little birdie even tells us that if you bring your copy of Back into the Storm, our very own Bil Herd will be sign it for you after his talk on the history of the Commodore wraps up Saturday evening.

If you’d rather get hands-on you can always take a walk over to the Computer Deconstruction Laboratory, InfoAge’s on-site hackerspace. Glitch Works will be on hand with several popular kits such as the XT-IDE, an 8-bit ISA adapter that lets you connect (relatively) modern drives to classic machines, and the R6501Q/R6511Q Single Board Computer. A bit rusty with the iron and would rather start on something a little easier? Not to worry. Neil Cherry, a staple of the Hackaday comment section since before we switched to color pictures, will be instructing hackers young and old in the ways of the flux during his all-day soldering classes.

Of course, no VCF trip is truly complete until you’ve searched for treasure in the consignment room. The space has been expanded for 2021, and considering how long folks have had to clean out their attics and garages thanks to the pandemic, we’re expecting a bumper crop of interesting hardware to wade through. If the turnout for the VCF Swap Meet in April was any indication, we’d suggest bringing some extra cash with you.

As a proud sponsor of the 2021 Vintage Computer Festival East, Hackaday will naturally be bringing you a first-hand account of the overall event as well as a deeper look into some of the incredible exhibits on display in the very near future. But words and pictures on a page can only go so far. If you’ve grown tired of virtual events and are looking to peek your head out, we can guarantee a trip to InfoAge this weekend will be well worth the gas money for anyone within driving distance.

Investigating A Defective USB Power Bank Module

October 5, 2021 by Tom Nardi 25 Comments

Call us old fashioned, but we feel like when you buy a piece of hardware, the thing should actually function. Now don’t get us wrong, like most of you, we’re willing to put up with the occasional dud so long as the price is right. But when something you just bought is so screwed up internally that there’s no chance it ever could have ever worked in the first place, that’s a very different story.

Unfortunately, that’s exactly what [Majenko] discovered when he tried out one of the USB-C power bank modules he recently ordered. The seemed to charge the battery well enough, but when he plugged a device into the USB output, he got nothing. We don’t mean just a low voltage either, probing with his meter, he became increasingly convinced that the 5 V pin on the module’s IP5306 chip literally wasn’t connected to anything.

Curious to know what had gone wrong, he removed all the components from the board and started sanding off the solder mask. With the copper exposed, his suspicions were confirmed. While they did route a trace from the chip to the via that would take the 5 V output the other side of the board, it wasn’t actually connected.

This is a pretty blatant bug to get left in the board, but to be fair, something similar has happened at least once or twice to pretty much everyone who’s ever designed their own PCB. Then again, those people didn’t leave said flaw in a commercially released module…

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Counting Down To The Final Atlas Rocket

October 4, 2021 by Tom Nardi 32 Comments

The Atlas family of rockets have been a mainstay of America’s space program since the dawn of the Space Age, when unused SM-65 Atlas intercontinental ballistic missiles (ICBMs) were refurbished and assigned more peaceful pursuits. Rather than lobbing thermonuclear warheads towards the Soviets, these former weapons of war carried the first American astronauts into orbit, helped build the satellite constellations that our modern way of life depends on, and expanded our knowledge of the solar system and beyond.

Naturally, the Atlas V that’s flying today looks nothing like the squat stainless steel rocket that carried John Glenn to orbit in 1962. Aerospace technology has evolved by leaps and bounds over the last 60 years, but by carrying over the lessons learned from each generation, the modern Atlas has become one of the most reliable orbital boosters ever flown. Since its introduction in 2002, the Atlas V has maintained an impeccable 100% success rate over 85 missions.

But as they say, all good things must come to an end. After more than 600 launches, United Launch Alliance (ULA) has announced that the final mission to fly on an Atlas has been booked. Between now and the end of the decade, ULA will fly 28 more missions on this legendary booster. By the time the last one leaves the pad the company plans to have fully transitioned to their new Vulcan booster, with the first flights of this next-generation vehicle currently scheduled for 2022.

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Minimalist Timer Counts Down With LED Matrix

October 1, 2021 by Tom Nardi 3 Comments

Looking for something with a bit more style than the traditional kitchen timer, [Martin Jonasson] decided to take the last couple of months to design and build his own take on the idea using a rotary encoder, 16×9 LED matrix, and a Teensy 2.0 microcontroller. Were there better things he could have spent that time on? Possibly. But you probably wouldn’t have been reading it about it here, so we won’t trouble ourselves with such thoughts.

Put together on a piece of perfboard, the handwired circuit also includes an Adafruit PowerBoost 500 Charger, a 3.7 V 2500 mAh LiPo battery, a IS31FL3731 Charlieplexed PWM LED driver, and a piezo buzzer. The top of the rotary encoder has been capped off with a sold metal knob, which combined with the enclosure made of stacked laser cut 3 mm acrylic sheets, really gives the device a very sleek and classy look.

While the hardware is quite nice, it’s the software that really pulls this whole project together. A game developer by trade, [Martin] went all in on the timer’s GPLv3 licensed firmware. From using the toneAC library to play melodies at the end of the countdown, to the custom fonts and the code that pauses the timer while the user is spinning the knob, there’s plenty of little touches that should make the timer a joy to use. We’ve seen some unique kitchen timers over the years, but the attention to detail put into this build really raises the bar.

[Martin] has provided everything you need to create your own version of his timer, including the SVG file for the laser cut case. While not strictly required, coming up with a custom PCB for this project would be a nice touch, should you want to put your own spin on it.

[Thanks to Tom for the tip.]

NASA Sets Eyes On Deep Space With Admin Shuffle

September 30, 2021 by Tom Nardi 17 Comments

Since the Apollo 17 crew returned from the Moon in 1972, human spaceflight has been limited to low Earth orbit (LEO). Whether they were aboard Skylab, Mir, the Space Shuttle, a Soyuz capsule, or the International Space Station, no crew has traveled more than 600 kilometers (372 miles) or so from the Earth’s surface in nearly 50 years. Representatives of the world’s space organizations would say they have been using Earth orbit as a testing ground for the technology that will be needed for more distant missions, but those critical of our seemingly stagnated progress into the solar system would say we’ve simply been stuck.

Many have argued that the International Space Station has consumed an inordinate amount of NASA’s time and budget, making it all but impossible for the agency to formulate concrete plans for crewed missions beyond Earth orbit. The Orion and SLS programs are years behind schedule, and the flagship deep space excursions that would have utilized them, such as the much-touted Asteroid Redirect Mission, never materialized. The cracks are even starting to form in the Artemis program, which appears increasingly unlikely to meet its original goal of returning astronauts to the Moon’s surface by 2024.

But with the recent announcement that NASA will be splitting the current Human Exploration and Operations Mission Directorate into two distinct groups, the agency may finally have the administrative capacity it needs to juggle their existing LEO interests and deep space aspirations. With construction of the ISS essentially complete, and the commercial spaceflight market finally coming together, the reorganization will allow NASA to start shifting the focus of their efforts to more distant frontiers such as the Moon and Mars.

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Raspberry Pi Pico Makes For Expeditious Input Device

September 29, 2021 by Tom Nardi 28 Comments

With its copious number of GPIO pins and native USB, the Raspberry Pi Pico is arguably the ideal microcontroller for developing your own platform agnostic USB Human Input Devices. But you don’t have to take our word for it. Check out how quickly the $4 USD board allowed [Alberto Nunez] to put together a pair of foot pedals for his computer.

Wiring doesn’t get much easier than this.

A peek inside the enclosure reveals…well, not a whole lot. All that’s hiding inside that heavy-duty plastic box is the Pi Pico and some screw down terminals that let [Alberto] easily wire up the female bulkhead connectors for the pedals themselves. Incidentally, while you could certainly make your own pedals, the ones used for this project appear to be the sort of commercially available units we’ve seen used in similar projects.

With the hardware sorted, [Alberto] just needed to write the software. While he could have taken the easy way out and hard coded everything, we appreciate that his CircuitPython script loads its configuration from a text file. This allows you to easily configure which GPIO pins are hooked up to buttons, and what key codes to associate them with. He didn’t really need to go through this much effort for his own purposes, but it makes the project far easier to adapt for others, so our hats off to him.

If you’re looking for a bit more inspiration, our very own [Kristina Panos] put together a Python-powered macro foot stool that you can put under your desk for rapid fire keyboard shortcuts. Plus you can stand on it to reach the top shelf, if need be.

IC Shortage Keeps Linux Out Of Phone Charger, For Now

September 29, 2021 by Tom Nardi 22 Comments

We’ve been eagerly following the development of the WiFiWart for some time now, as a quad-core Cortex-A7 USB phone charger with dual WiFi interfaces that runs OpenWrt sounds exactly like the sort of thing we need in our lives. Unfortunately, we’ve just heard from [Walker] that progress on the project has been slowed down indefinitely by crippling chip shortages.

At this point, we’ve all heard how the chip shortage is impacting the big players out there. It makes sense that automakers are feeling the pressure, since they are buying literally millions of components at a clip. But stories like this are a reminder that even an individual’s hobby project can be sidelined by parts that are suddenly 40 times as expensive as they were when you first put them in your bill of materials.

In this particular case, [Walker] explains that a power management chip you could get on DigiKey for $1.20 USD a few months ago is now in such short supply that the best offer he’s found so far is $49.70 a pop from an electronics broker in Shenzhen. It sounds like he’s going to bite the bullet and buy the four of them (ouch) that he needs to build a working prototype, but obviously it’s a no go for production.

Luckily, it’s not all bad news. [Walker] has made some good progress on the power supply board, which will eventually join the diminutive computer inside the USB charger enclosure. Part of the trick is that the device is still supposed to be a functional USB charger, so in addition to 5 VDC for the output port, the power supply also needs to produce 1.1 V, 1.35 V, 2.5 V, 3.0 V, and 3.3 V for the computer. We’re glad to see he’s taking the high road with his mains circuitry, making sure to use UL listed components and maintaining proper isolation.

When we last checked in on the WiFiWart back in July, [Walker] had already managed to boot Linux on his over-sized prototype board. Now he’s got PCBs in hand that look far closer to the final size and shape necessary to tuck them into a phone charger. It’s a shame that the parts shortage is slowing down progress, but we’re confident we’ll at least get to see a one-off version of the WiFiWart powered up before the year is out.