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Open Hardware/Modding: FPGAs, DDoS Attacks, and More

Submitted by Roy Schestowitz on Saturday 19th of March 2022 03:16:28 PM Filed under
Hardware

  • The Open Source ASICs Hack Chat Redefines Possible

    There was a time when all that was available to the electronics hobbyist were passive components and vacuum tubes. Then along comes the integrated circuit, and it changed everything. Fast forward a bit, and affordable programmable microcontrollers arrived on the scene. Getting started in electronics became far easier, and the line between hardware and software started to blur. Much more recently, the hobbyist community was introduced to field programmable gate arrays (FPGAs) and the tools necessary to work with them. While not as widely applicable as the IC or MCU, the proliferation of FPGAs among hardware hackers once again opened doors that were previously locked tight.

  • Finally... some Peace and Quiet

    So that led me into my current hybrid phase in which I'm relying entirely on low powered computer devices for the server-like infrastructure of my house (two Raspberry Pi 400s do most of the heavy lifting for file, backup and media services at home). I'm running a OPNSense router built around one of the ODroid H2 boards that I was using as my primary workstation(s) through most of last year. While I was running a generic Chinese Mini PC as my single Ryzen powered workstation for awhile, I ended up switching to something earlier this week that was a bit more suited to my tastes, the MinisForum HM90 (Review Video Here).

    So what makes the HM90 better than what I had before? Well the actual hardware and performance specs are pretty close, with the HM90 having a slight edge because it has a Ryzen 4900H processor instead of the Ryzen 4800H in the generic unit and power usage between the two is roughly equivalent, which is to say far less than even the most basic desktop as these are both mobile processors. But that's not what made me fall in love with it. Rather its the fact that no matter what workload I throw at the HM90, it runs dead silent.

  • GBA nostalgia and the Flash Advance Linker

    During this period, I acquired a pre-owned Flash Advance Linker, a device manufactured by Visoly in 2001. Because the previous owner was also selling his GBA, I ended up owning two of them. As my plan back then was to pursue the idea of developing a multiplayer puzzle game, on the hardware side at least, I had everything I ever needed.

    Life happened though, things didn’t exactly go as planned and I had to sell the two GBAs temporarily, or so I thought. I kept the linker though, and when I acquired the HP t5570e and HP t510 thin clients back in 2017, it meant that I finally had some devices with a parallel port again.

  • How to Build a Bike Generator with Control Panel

    Many people have built pedal power generators and published the manuals online and in books. However, when we set out to make a pedal power generator ourselves, we found that these manuals are incomplete when making the bike generator practical to use. The focus is on building the power source itself, with comparatively little attention to what happens with the power that comes out of it.

    To try and make human power production more useful, we built not just a pedal power generator but also a control panel in the form of a “dashboard” attached to the handlebars. The dashboard allows powering or charging a wide diversity of devices – no matter what voltage they run on. Furthermore, multiple devices can be powered simultaneously, allowing the cyclist to adjust the resistance on the pedals for an optimal workout.

    We also tried to improve the bike generator itself. Although there are good manuals available, we wanted a power source that is easy to build (no welding or complex tools required), comfortable to pedal, as compact as possible, and not an eyesore. The bike generator is set up in a small living room and used regularly. We found the solution in a vintage exercise bike with a flywheel, an approach we have not seen before.

  • Review: Framework Laptop

    For many years I have been known as the “ThinkPad guy”. I’ve always used IBM / Lenovo ThinkPad laptops where possible. To the extent that a few years ago I had a lengthy chat with JFK airport security about why I had four ThinkPads in my hand luggage. I’ve been using a high-spec ThinkPad T495 for a few years and I’m getting more and more dissatisfied with the newer ThinkPads in general. So, I figured it was time for a change. I’ve seen a lot of talk of Framework laptops and added myself to the wait list for UK shipping. Many people have asked me for a review of the laptop (which arrived today) so I figured I would write my thoughts.

»

Framework Laptop

Submitted by Roy Schestowitz on Thursday 21st of April 2022 10:28:20 PM.
  • The Framework Laptop Mainboard is out as a standalone platform | GamingOnLinux

    Well this is quite interesting. Framework Computer, the company that builds the fab modular Framework Laptop has announced the release of the Framework Laptop Mainboard.

    This is available for USA and Canada with a release upcoming for the UK, Germany, France, Netherlands, Austria, and Ireland sometime "soon". What's really fun though, is that they say it was designed in a way that you can simply use the mainboard as a standalone single-board computing platform. As they say "All you need to do is insert memory, plug in a USB-C power adapter, and hit the tiny power button on-board, and you’ve got a powered-up computer".

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