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Bringing a decade old bicycle navigator back to life with open source software
Published: 25-07-2025 23:37 | Last update: 02-08-2025 21:31 | Author: Remy van Elst | Text only version of this article
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The latest blog posts to take off on Hacker News. 4,805 posts.
Hardware & Electronics
Any year
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Rust running on every GPU
I've built a demo of a single
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Efficient Computer's Electron E1 CPU – 100x more efficient than Arm?
100x More Efficient than Arm?
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It's a DE9, not a DB9 (but we know what you mean)
You have been misusing the D-sub connector terminology, and we're guilty of it, too.
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Exploiting zero days in abandoned hardware
We successfully exploited two discontinued network devices at DistrictCon’s inaugural Junkyard competition in February, winning runner-up for Most Innovative Exploitation Technique. Our exploit chains demonstrate why end-of-life hardware poses persistent security risks.
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Blender: Beyond Mouse and Keyboard
Get ready for blending on-the-go.
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Tiny Code Reader: a $7 QR code sensor
So cheap I bought three
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What went wrong inside recalled Anker PowerCore 10000 power banks?
Investigate Anker’s recalled power banks. See how CT scanning uncovers battery defects and improves safety in lithium-ion designs.
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Staying cool without refrigerants: Next-generation Peltier cooling
On June 28, Samsung Electronics, together with the Johns Hopkins University Applied Physic
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Pimping My Casio: Part Deux
Close to three years ago I wrote about using Oddly Specific Objects' alternate "motherboard" to modify a classic Casio F-91W watch: Pimping...
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USB-C hubs and my slow descent into madness (2021)
A short story of me trying out different USB-C hubs, taking them apart, and slowly descending into madness.
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How to run an Arduino for years on a battery (2021)
Build an autonomous Arduino system optimized for ultra-low power consumption. How to Run an Arduino for Years on a Battery Build an autonomous Arduino.
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Xbox Hacks: The A20 (2021)
In the early 2000s the Xbox was released. We are nearing the 20 year anniversary so its time to dive into the A20 "hack".
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Inside the box: Everything I did with an Arduino starter kit
Diving into Elegoo Arduino Uno R3 Starter Kit, the most complete Arduino kit
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Does showing seconds in the system tray actually use more power?
Welcome to LTT Labs - your go-to destination for all things tech. Explore comprehensive test results, insightful commentary, and the latest analysis in hardware.
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How does a screen work?
From electron guns to tiny electric crystals - digital displays have always been the unsung hero of computing.
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Vibe-Coding a PCB – surprisingly good
I was expecting this to be pretty bad - but it actually came out quite nicely!
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Upgrading an M4 Pro Mac mini's storage for half the price
A few months ago, I upgraded my M4 Mac mini from 1 to 2 TB of internal storage, using a then-$269 DIY upgrade kit from ExpandMacMini. At the time, there was no option for upgrading the M4 Pro Mac mini, despite it also using a user-replaceable, socketed storage drive. But the folks at M4-SSD reached out and asked if…
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Repasting a MacBook
My favorite memory of my M1 Pro MacBook Pro was the whole sensation of “holy crap, you never hear the fans in this thing”, which was very novel in 2021. Four years later, this MacBook Pro is still a delight. It’s the longest I’ve ever owned a laptop, and while I’d love to pick up the new M4 goodness, this dang thing…
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GlobalFoundries to Acquire MIPS
Acquisition will expand GF portfolio with cutting-edge RISC-V processor IP and software tools for real-time computing in autonomous mobility, industrial automation, datacenter and intelligent edge applications MALTA, N.Y., and San Jose, Calif., July 8, 2025 – GlobalFoundries (Nasdaq: GFS) (GF) today announced a…
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What Microchip doesn't (officially) tell you about the VSC8512
This is part 3 of my ongoing series about LATENTRED, my project to create an open source 1U managed Ethernet switch from scratch.
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Mini NASes marry NVMe to Intel's efficient chip
I'm in the process of rebuilding my homelab from the ground up, moving from a 24U full-size 4-post rack to a mini rack. One of the most difficult devices to downsize (especially economically) is a NAS. But as my needs have changed, I'm bucking the trend of all datahoarders and I need less storage than the 120 TB (80…
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Is an Intel N100 or N150 a better value than a Raspberry Pi?
tl;dr: it depends. About one year ago, I bought an Intel N100 mini PC (specifically the GMKtec N100 NucBox G3) and compared it to the Raspberry Pi 5 8GB. A year later, and we have a newer $159 16GB version of that mini PC with a slightly-faster Intel N150, and a new 16GB Raspberry Pi 5. I re-ran all my benchmarks, and…
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Exploiting the IKKO Activebuds “AI powered” earbuds (2024)
So my journey with these earbuds started after I saw them on this Mrwhosetheboss video about pointless tech. This device seems to be also popular on TikTok. My suspicions were confirmed, this runs android. So of course i went ahead and bought them. 245 euros later... and they finally arrived!
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The hidden JTAG in a Qualcomm/Snapdragon device’s USB port
Learn about JTAG and EUD
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Sony DTC-700 audio DAT player/recorder
What offers the convenience of a cassette tape, and the sound quality of a CD? Digital Audio Tape (DAT) does. So why wasn’t it more successful?
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Nano-engineered thermoelectrics enable scalable, compressor-free cooling
Researchers at Johns Hopkins APL, in collaboration with Samsung Research, have unveiled a breakthrough in solid-state cooling technology, doubling the efficiency of today’s commercial systems. Driven by the Lab’s patented nano-engineered thin-film thermoelectric materials and devices, this innovation paves the way for…
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Bought myself an Ampere Altra system
There are tools and there are toys. I bought myself a tool.
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Transmitting data via ultrasound without any special equipment
There are secret messages flying all around you all the time, being transmitted via, most of the time, electromagnetic waves going from antenna to antenna. ELOs “Secret Messages” is a song about posting conspiracy theories via WiFi. But what if you need to get a few bytes from device A to device B (one of the hard…