Some of the first Sony Discmans included rechargeable batteries. These batteries were nickel metal hydride batteries (because of the technology of the time) and are now well past their service life. The new hotness in battery technology is lithium — it offers greater power density, lighter weight, and a multitude of ready-to-go, off the shelf cells. What if someone were to create a new battery pack for an old Sony Discman using lithium cells? That’s exactly what [sjm4306] did for their entry into this year’s Hackaday Prize.
The Discman [sjm] is working with uses a custom, Sony-branded battery based on NiMH technology with a capacity of around 500 mAH. After carefully measuring the dimensions of this battery, it was replicated in plastic with a 3D printer. This enclosure was then stuffed with a small lithium cell scavenged from a USB power bank.
The only tripping points for this build were the battery contacts. The originally battery had two contacts on the end that fit the Discman exactly; these were replicated with a small PCB wired up to the guts of the USB powerbank. The end result is a direct, drop-in replacement for the original Discman battery with a higher capacity, that’s also rechargeable via USB. It’s a fantastic project, with the entire build video available below.
The Compact Disc is 40 years old, and for those of us who remember its introduction it still has that sparkle of a high-tech item even as it slides into oblivion at the hands of streaming music services.
If we could define a moment at which consumers moved from analogue technologies to digital ones, the announcement of the CD would be a good place to start. The public’s coolest tech to own in the 1970s was probably an analogue VCR or a CB radio, yet almost overnight they switched at the start of the ’80s to a CD player and a home computer. The CD player was the first place most consumers encountered a laser of their own, which gave it an impossibly futuristic slant, and the rainbow effect of the pits on a CD became a motif that wove its way into the design language of the era. Very few new technologies since have generated this level of excitement at their mere sight, instead today’s consumers accept new developments as merely incremental to the tech they already own while simultaneously not expecting them to have longevity. Continue reading “The CD Is 40, The CD Is Dead”→
When Sony announced they planned to release their own classic/mini/plug-n-play system this year, many fans were filled with excitement at the chance to relive countless classic games from the 90s. However, once the actual list of titles were made public that excitement faded as reality set in. So many favorites like Crash Bandicoot and Spyro the Dragon were left off the final PlayStation Classic list, no doubt due to the complexity of licensing agreements. That will all soon change now that [YifanLu] cracked the PlayStation Classic live on a Twitch stream thus laying the ground work for swapping-in a “more curated” list of classic PlayStation games.
Over the course of three days, [YifanLu] documented the process in real-time of cracking the PlayStation Classic’s security armed with little more than a keyboard. The crux of the hack came from fellow hacker [madmonkey]’s revelation that the firmware update files were signed with a key that had been mistakenly left behind on the device by Sony. Or as [YifanLu] stated, “One key is, ‘Hey am I Sony?’…The other key is saying, ‘Hey I am Sony.’ They distributed the key that identifies [themselves] uniquely and this key doesn’t expire for another 50 years or so.”
Once inside [YifanLu] was able to sideload a prototype image of a Crash Bandicoot over USB. He simply overwrote the first title on the list, Battle Arena Toshinden, and could launch the freshly injected game from the PlayStation Classic menu screen. The video below is from Day 3 of the PlayStation Classic hacking series, so skip to timecode (03:44:45) to see the results in action. For a bit more nuance there are another 15 hours or so of video to catch-up on [YifanLu]’s Twitch page. Here’s to everyone getting their favorite onto the PlayStation Classic in the near future.
It seems crazy having to explain what a piece of technology was like to someone who is barely fifteen years your junior, but yet we have reached that point when it comes to CRTs. There may still be remnants of CRT televisions and monitors left out in the wild, however, the chances that a kid preparing to enter high school has encountered one is slim. While there may be no substitute for the real thing, there is this raw video from [Glenn] who shared his tour of the Sony Trinitron assembly line in the early 2000s.
Sony Electronics’ cathode ray tube manufacturing facility was located alongside headquarters in Rancho Bernado, CA. The facility was shuttered in 2006 when Sony transitioned wholly onto digital displays like the flat-panel LCD line of Bravia televisions. [Glenn]’s video shows that the manufacturing process was almost entirely automated from end to end. A point that was made even more clear with the distinct lack of human beings in the video.
The Trinitron line of televisions first appeared in 1968. At a time where most manufacturer’s were offering black and white picture tubes, Sony’s Trinitron line was in color. That name carried through until the end when it was retired alongside tube televisions themselves. Sony’s focus on technological innovation (and proprietary media formats) made them a giant in the world of consumer electronics for over forty years in the United States, but in the transition to a digital world saw them seeding market share to their competitors.
A quick word of warning as the video below was shot directly on Sony’s factory floor so the machinery is quite loud. Viewers may want to reduce the volume prior to pressing play.
In a complete surprise, Sony has moved to release the latest version of their robotic dog series, Aibo, in North America. The device is already out in Japan, where there are a number of owner’s clubs that would rival any dedicated kennel club. Thanks to the [Robot Start] team, we now have a glimpse of what goes into making the robotic equivalent of man’s best friend in their teardown of an Aibo ERS-1000.
According to Yoshihiro of Robot Start, Aibo looks to be using a proprietary battery reminiscent of the Handycam camcorders. Those three gold contacts are used for charging on the rug shaped power base that Aibo will periodically return to in order to take a”nap”. There are a couple of square OLED screens behind those puppy dog eyes. They are full-color OLEDs somewhere in the one-inch ballpark. Between the screens is a capacitive touch sensor that wraps around to the top of the head that are also pressure sensitive.
Laying out all the major parts out together certainly drives home the complexity of the latest Aibo. It’ll be interesting to see the progression of this device as all of them come equipped with 4G LTE and 802.11 b/g/n WiFi that connect to Sony’s servers for deep learning.
New behaviors are supposed to download automatically as long as the device is under the subscription plan. While Sony has no current plans to integrate with any voice-activated virtual assistant, we can still look forward to the possibility of some expanded functionality from the Hackaday community.
For the rest of the teardown photos make sure to head over to [Yoshihiro]’s write up on Robot Start. Also just in case anybody cared to see what happens when the first generation Aibo ERS-111 from 1999 meets the 2018 Aibo ERS-1000, you’ll find the answer in the video below:
Love it or hate it, you can’t deny that Java has a pretty impressive track record in terms of supported platforms. Available on everything from flip phones to DVD players, not to mention computers, Oracle once famously claimed that Java runs on three billion devices. An estimate that, in truth, is probably on the low side at this point. Especially when [Michael Kohn] keeps figuring out how to run it on increasingly esoteric devices.
[Michael] writes in to tell us that he’s added support for the PlayStation 2 console to Java Grinder, his software for taking Java code and turning it into a native binary for a variety of unexpected platforms. His previous conquests have included the TRS-80 and Atari 2600, so by comparison the PS2 is an almost tame addition to the list.
Let’s be honest, you probably don’t have any desire to run a Java program on Sony’s nearly two decade old game system. But that’s OK. The documentation [Michael] has written up is fascinating anyway, covering specifics of the PS2’s rather unique hardware and quirks he ran into when developing on an emulator and deploying on real hardware. Even if you’ll never put the findings to practical use, it’s absolutely worth a read.
In the video after the break you can see the demo [Michael] came up with booting on a real PS2 to prove the software works. To really put his mark on it, he mentions he wrote and performed the demo’s songs and even drew some of the artwork on paper and scanned it into his computer.
[LittleTern] — annoyed by repetitive advertisements — wanted the ability to mute their Satellite Box for the duration of every commercial break. Attempts to crack their Satellite Box’s IR protocol went nowhere, so they thought — why not simply mute the TV?
Briefly toying with the idea of a separate remote for the function, [LittleTern] discarded that option as quickly as one tends to lose an additional remote. Instead, they’re using the spare RGYB buttons on their Sony Bravia remote — cutting down on total remotes while still controlling the IR muting system. Each of the four coloured buttons normally don’t do much, so they’re set do different mute length timers — customized for the channel or time of day. The system that sends the code to the TV is an Arduino Pro Mini controlling an IR LED and receiver, with a status LED set to glow according to which button was pressed.