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Why did bar ends go away from mountain bikes?
For a little over a decade, they enjoyed strong popularity among mountain bikers, but then the feelings got cold.
Topics /
Hardware & Electronics
The most popular blog posts about hardware & electronics on Hacker News. 4,805 posts.
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They make USB-C cables with displays now
How to turn something as ordinary as an USB-C cable into something that a lot of nerds will want to buy.
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Hacking a $200 Under Desk Exercise Bike
Due to COVID, I haven’t been getting my usual amount of exercise this year. To help with that, I decided to take a chance and order an under-desk exercise bike to get some extra cardio. The bike I bought is decent: it has good tension, stays in place, operates quietly, and offers Bluetooth connectivity for tracking…
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Milwaukee M18 Battery Reverse Engineering
2023-01-01: This project has been ongoing for a while... now its time to post some of this info and see what comes of it. I have access to several junk Milwaukee M18 batteries. Age varies a little. I thought it would be 'fun' to reverse engineer a battery just to see how it functions... That is until I actually opened
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Tokyo mechanical keyboard meetup photos
Last sunny Saturday, there was the biggest keyboard mee…
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Unlocking my Lenovo laptop battery
Introduction Two months ago, I bought a new battery for my Lenovo laptop (a ThinkPad X230T). I was about to go away on holidays and wanted a battery that could last me through a plane flight; the original battery was by then barely lasting ten minutes. Little did I know that I was about to be i
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Internet of Crappy Things
There is a flood of appliances which could be connected - and some are connected - without a second thought as to whether or not it’s necessary or secure.
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My fan worked fine, so I gave it WiFi
How I went about creating a concealed modification for a fan so I could control it over WiFi with ESPHome and Home Assistant.
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5Gbps Ethernet on the Raspberry Pi Compute Module 4
tl;dr: I successfully got the Intel I340-T4 4x Gigabit NIC working on the Raspberry Pi Compute Module 4, and combining all the interfaces (including the internal Pi interface), I could get up to 3.06 Gbps maximum sustained throughput. Update: I was able to boost things a bit to get 4.15 Gbps! Check out my video here…
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The Mysterious 50 Ohm Impedance: Where It Came from and Why We Use It (2021)
50 Ohm impedance became the standard impedance used in RF transmission lines long ago, but it is still useful today and is a standard reference impedance used in test equipment.
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Unusual circuits in the Intel 386's standard cell logic
I've been studying the standard cell circuitry in the Intel 386 processor recently. The 386, introduced in 1985, was Intel's most complex pr...
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Nintendo DS-TV-Out Restoration Project
How Instagram helps gamers build authority, attract sponsors, and grow a loyal community beyond the game.
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Atlas robot does parkour
By training Atlas to maneuver its way through complex parkour courses, our engineers push the humanoid robot to its limits.
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Why Apple Will Switch to ARM-Based Macs (2014)
When Steve Jobs announced the transition from PowerPC to Intel processors in 2005, he revealed something that, in hindsight, seemed obvious to everyone who didn’t anticipate the switch: There are two major challenges in this transition. The first one is making Mac OS X sing on Intel processors. Now,
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How strong would a magnetic field have to be to kill you?
There’s a great joke in Futurama, the cartoon comedy show, about a horror movie for robots. In the movie, a planet of robots is terrorized by a giant “non-metallic being” (a mons…
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I replaced my son's school timetable app with an e-paper
How I replaced my son's school timetable app with an e-paper
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Hand Tracking for Mouse Input (2023)
The other day I saw the launch of Apple Vision Pro, the whole thing was very interesting, but one thing that caught my attention was the finger input. It seems very intuitive, by using the finger pinching as sort of like a cursor or mouse input. I figured I want to try it out, so I took it upon myself to create it.
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Gate-level simulation of ASIC in browser
TinyTapeout VGA 1D Cellular Automata Simulation
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The Tesla Gun
<img decoding=”async” loading=”lazy” class=”alignright” title=”The5fists” src=”uploads/2012/05/The5fists-192x300.pngThe year was 1889. The War of the Current
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Gray code at the pediatrician's office
From the highly eclectic blog of Mark Dominus
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M3 Macs: there's more to performance than counting cores
A look at some of the factors determining the performance of new M3 chips compared to the M1 and M2 versions, and how not to compare them.
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Ode to the M1
It is not often I am blown away by a piece of hardware. My Hall of Fame features the 1991 Super Nintendo, the 1995 3dfx1, and the 2010 Intel's Serie 520 SSD [1] . This past month my 2021 MacBook Pro M1 [2] joined the club.
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The Orange Pi 6 Plus
This was a long one–I spent a fair bit of time with the Orange Pi 6 Plus over the past few months, and what I expected to be a quick look at another fast ...