4501
USB-C done cheap: when 2 ports become 1 (2020)
How PC hardware is implementing USB-C in a way that may or may not violate standards.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,807 posts.
Hardware & Electronics
Any year
4502
Real-Time Touch Controller for the Yamaha DX7 Synthesizer
George Barlow initially set out to develop a controller to be able to call up a voice preset, and then tweak from there. What he's done is essentially transformed the DX7 synth into an interactive sound designer's dream machine.
4503
Purism Librem 5 Hardware Schematics
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
4504
4505
Turning my ESP32 into a DNS sinkhole to fight doomscrolling
A fun project that I learned a lot from.
4506
$5 whale listening hydrophone making workshop
Whale songs were first noticed by accident, when analysts tracking Russian submarines at the height of the cold war heard cetacean interference instead. An engineer sent some recordings to Roger Payne, a biologist friend of his, who did something that proved pivotal: he played the hours-long recordings on his hi-fi at…
4507
Cascaded Displays: Spatiotemporal Superresolution using Offset Pixel Layers
We demonstrate that layered spatial light modulators (SLMs), subject to fixed lateral displacements and refreshed at staggered intervals, can synthesize images with greater spatiotemporal resolution than that afforded by any single SLM used in their construction. Dubbed cascaded displays, such architectures enable…
4508
AT&T's Hobbit Microprocessor (2023)
An unexpected journey for AT&T with it's own low power processor
4509
Lidar mapping techniques using multiple sensors
How Ouster OS1 sensors create 3D HD maps, demonstrated by scanning San Francisco's iconic Ferry Building.
4510
4511
Vetinari's Clock (2011)
In the excellent Discworld series the character Lord Vetinari has a clock in his waiting room which is designed to tick irregularly in order to make his visitor feel ill at ease. Inspired by a post featured on Hackaday I decided to build my own version of this clock with a simple and easy to make design.
4512
A PCB business card with a batteryless LED, powered by the phone that taps it
I made a circuit-board business card that opens my website and lights an LED with power harvested from the phone tapping it.
4513
Intel Releases the Arduino 101 Source Code
We’re very happy to announce that the source code of the real-time operating system (RTOS) powering the Arduino 101 and Genuino 101 is now available for
4514
Kniterate is a 3D printer for clothes [video]
Why head to the store when you could simply create your outfits right at home with the touch of a button? That’s the idea behind London-based startup
4515
4516
Advanced Forth Programming Topics
Explains features that make it easy to program in QED-Forth, including the interactive debugger, floating point mathematics, heap memory manager, arrays and matrices, structures, and the multitasking executive.
4517
Reverse-engineering an airspeed/Mach indicator from 1977
How does a vintage airspeed indicator work? CuriousMarc picked one up for a project, but it didn't have any documentation, so I reverse-en...
4518
WLW: 700 kHz, 500 kW, 100% modulation, no limiter (2000)
Radios with cooling ponds.
4519
An Armful of CHERIs
Microsoft Security Response Center Blog2022105 points24 commentscited by 3Security & Privacy details
Today, Arm announced that the first silicon supporting the Morello prototype architecture, a research project led by Arm, Microsoft, University of Cambridge and others, is now available on a limited run of demonstration boards, which are being shipped from today to industry partners for testing. Morello is the first…
4520
4521
Rotating molecules enable near 100% efficient OLEDs
Scientists have discovered a group of materials which could pave the way for a new generation of high-efficiency lighting, solving a quandary which has inhibited the performance of display technology for decades. The development of energy saving concepts in display and lighting applications is a major focus of…
4522
33C3 talk on dissecting cellular modems
Yesterday, together with Holger 'zecke' Freyther, I co-presented at 33C3 about Dissectiong modern (3G/4G) cellular modems. This presentation covers some of our recent explorations into a specific type
4523
FPGA-Based Disk Controller for the Apple II (2017)
Apple II disk controller cards are weird, there are a crazy number of different types , and many are rare and expensive. Can an FPGA-based solution save the day for retro collectors? You bet! Nearly all the existing disk controllers connect the same 8-bit bus to the same 19-pin disk interface, so a universal clone is…
4524
Reverse engineering a Hit Clip (2013)
It’s hard to see a child outside today without some kind of iDevice pumping high fidelity 192kbps stereo lossless audio into their shiny white headphones, but BACK IN MY DAY, the iPod hadn’t been invented yet. Pickings were slim. Walkmen were outdated, CD players were pricey and would skip if bumped around despite…
4525
Train Simulator Controller
From January to July 2026, I have continued to work on my UK Class 800-inspired train simulator. There are a number of components in progress, but few newly completed: in lieu of posts about completed portions of the simulator, here’s a roundup of progress across the different hardware aspects of the project.
4526
Got my ultimate retro KVM setup working
By Ruben Schade in Eora/Sydney, Australia.
4527
Learning Bluetooth Hackery with BLE CTF
Do you want to get into tinkering and hacking Bluetooth LE devices? Up until now, doing so was very much a DIY process. You would h...
4528
Chainless electric drive system “Free Drive” for bicycles (2021)
Schaeffler Website
4529
The MacBook Air: A Decade’s Worth of Legacy
A decade ago, we entered the current era of notebook design when Steve Jobs pulled the future out of an envelope.
4530
Reviewing Bad Schematics as EE Interview Tactic
help your EE candidates strut their stuff