Ever wondered what useful things you could do with a 32 year old laptop? Well, this is one option: In this project I added a Raspberry PI Zero to the insides of the laptop. Both are connected via a…
I recently did a PC power supply teardown so I figured it would be interesting to go deeper and see what happens inside the power supply'...
The quartz oscillator is an important electronic circuit, providing highly-accurate timing signals at a low cost. A quartz crystal has the...
NEC had a cross license agreement with Intel dating back to April of 1976 that allowed each company to make/sell products based on each others patents. This was particularly important in the 1970’s as having a viable ‘second source’ for your designs was considered critical for it to be viable in the market. This was…
Today, we’re announcing ARM64EC (“Emulation Compatible”), a new way to build apps for Windows 11 on ARM. With the latest Visual Studio tools in preview and the Windows 11 Insider SDK, you'll be able to take advantage of ARM64EC to incrementally
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Abstract : In this post we describe the construction of a small amateur radio telescope operating at
At the beginning of COVID lockdown and multiple people working from home it was obvious there was a need to let others know when I'm in a meeting or on a live webcam. So naturally it took me one year to finally do something about it. Now I'm here to share what I learned along the way.
Earlier this year, I pitted the $549 ASUSTOR Lockerstor 4 NAS against a homebrew $350 Raspberry Pi CM4 NAS, and came to the (rather obvious) conclusion that the Lockerstor was better in almost every regard. Well, ASUSTOR introduced a new lower-cost NAS, the $329 Drivestor 4 Pro (model AS3304T—pictured above), and sent…
Using RP2040 to create a USB audio microphone.
Everyone had their weird pandemic hobby, right? Well, mine is that I bought an arcade video game. Not the whole cabinet - just a board, to hook up ...
I have reached a good milestone on the SCAMP hardware: it can now execute code! It runs all the way through the test program correctly.
I am pleased to announce that pre-orders for the PinePhone BETA Edition will open on March 24. The PinePhone BETA Edition is powered by KDE Plasma Mobile and Manjaro Linux.
When learning a new programming language, I like having a well defined yet non-trivial problem to solve. Conway’s Game of Life (GoL) fits this definition. It has enough depth to uncover various tradeoffs. So naturally, when I picked up Chisel hardware description language (HDL), I wanted to build Game of Life in FPGA…
Explores how a CNC micro-factory adapted to remote operation using cameras, dashboards, and VPNs to overcome challenges like travel restrictions, improving…
Earlier today I did a livestream on my YouTube channel to attempt using an Nvidia GeForce GTX 1080 on a Raspberry Pi Compute Module 4. As with all my testing, I'm documenting everything I learn in this GitHub issue, which is part of the Raspberry Pi PCI Express Card Database website. It's only been a few hours, but…
HP servers provide a management module called iLO (a.k.a. Integrated Lights-Out), which turns on as soon as the power cable is connected, loading a full-blown proprietary operating system. This module has full access to all the firmware, hardware, software, and operating system installed on the server. In addition to…
2020 has been a weird year, for everyone around the world. In my specific case, that meant being away from my home in Shanghai, as we were in Europe at the time Covid hit and China did not make it easy to return until somewhere towards the end of the year.
A couple of days back, Ganesh Venkataramanan, leader of the Tesla Dojo project, announced the Dojo machine learning training system. It’s an unusually network rich, power dense, and memory light design. I’ve summarized the architecture of the system below but I found three aspects of the system particularly…
Instructions on how to design, calculate and build power transformers.
Programming PIC32 Microcontroller with Rust, AKA running rust on bare metal
DPReview just published Apple still hasn't made a truly “Pro” M1 Mac – so what’s the holdup? Following on the good performance and awesome power efficiency of the Apple M1 , there’s a hungry background rumble in Mac-land along the lines of “Since the M1 is an entry-level chip, the next CPU is gonna blow everyone’s…
Last year I started collecting ideas of things I would like to 3D print one day, on Twitter. Twitter is fundamentally ephemeral, so I'll collect it here instead. I got up to 14 items on Twitter, and now I'm up to 25.
As of 3-30-2020, if you want the “paste-one-line-it-just-works” go to: vpetkov.net/2020/03/30/raspberry-pi-netflix-one-line-easy-install-along-with-hulu-amazon-prime-disney-plus-hbo-spotify-pandora-and-many-others/ ^^^ Please use the post linked above for my “one-line it just works” install ^^^ (Ignore everything…
