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ESP32 and Termux
Documenting my journey in trying to use my ESP32 on my phone through Termux
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
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Puget Systems Most Reliable Hardware of 2025
We look back at our records for 2025 to highlight specific brands and models of workstation computer components that we found to be exceptionally reliable.
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How to Train Your Robot
The enormous advance in AI capabilities over the last several years has in large part been driven by the availability of vast amounts of training data.
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Global Kernel Locks in APFS
Over the past several months, a handful of people had been complaining that Mercurial's test harness was executing much slower on Macs. But this slowdown seemingly wasn't occurring on Linux or Windows. And not every Mac user experienced the slowness!
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Microsoft and Arduino Announce Partnership
It’s a special day for the Makers’ community. Massimo Banzi is in San Francisco attending Build Conference, the biggest developer event of the calendar
3426
1956 Philips 353A Bakelite Vacuum Tube Radio Repair and Restoration
A few months ago I bought my first ever vacuum tube radio, a 1956 Philips 353A bakelite AM/FM set, which is (currently) the oldest item in my collection. I’ve been wanting to get into vintage radio…
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3D scanning like a pro
Almost any sensor yields more interesting results if mounted on a moving platform. Remember scanning thermometer ? It’s time to mount TOF LIDAR (Time Of Flight / Light Imaging, Detection, And Ranging) on two precision rotary stages arranged for pan and tilt operation. Rig provides real-time position data along with…
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DIY puller RC flying wing airplane with Kline–Fogleman modified airfoil
Diese Domain steht zum Verkauf. Machen Sie uns ein Angebot.
3431
Homebrew Batteries
I am a simple enthusiast attempting to convey my love and enjoyment of radio, electronics, and computing and perhaps to inspire YOU to build something too.
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Memory-Level Parallelism: Intel Skylake versus Apple A12/A12X
Modern processors execute instructions in parallel in many different ways: multi-core parallelism is just one of them. In particular, processor cores can have several outstanding memory access requests "in flight". This is often described as "memory-level parallelism". You can measure the level of memory-level…
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NESPi – Mini NES Classic Raspberry Pi Games Console
My blog about making and modding, 3D printing, electronics and other experiments.
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I finally found a use case for my Raspberry Pi Model B+
I take a severely underpowered computer and make it do something useful.
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Run Qwen3.8 27B locally: real numbers from my Mac Studio
Qwen3.8 27B benchmarked on a Mac Studio M3 Ultra: Ollama and llama.cpp numbers, the 1-bit quant tested, RAM math, and the hardware that actually fits.
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BMW F Series Gear Selector, Part One: Failures
I'm overdue to write up some of my vague electric vehicle conversion project, so here's a small part of it.
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All GB/s without FLOPS – Nvidia CMP 170HX Review
This article contains a basic Nvidia CMP 170HX performance overview, a performance lockdown workaround, a hardware teardown, a watercooling installation guide, and a repair log.
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Repairing the card reader for a 1960s mainframe: cams, relays and a clutch
I recently helped repair the card reader for the Computer History Museum's vintage IBM 1401 mainframe. In the process, I learned a lot abou...
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How a Handgun Works: 1911 .45
Check out Animagraffs on youtube > .
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HP plans to release first memristor, alternative to flash and SSDs in 18 months
HP intends to have an alternative technology to flash on the market in eighteen months, an alternative to DRAM in three to four years and, following DRAM, a replacement for SRAM, Stan Williams, Senior Fellow at HP, told the IEF2011 meeting in Seville this morning.
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Recreating the Death Star Trench Run Scene with Lego
South Korean LEGO Certified Professional Wani Kim, with the help of Olive Seon, has created an incredible replica of the Death Star Trench Run scene from
3446
I Hacked My Car Guides: Creating Custom Firmware
Notice Note: As of 2022/10/25 the information in this series is slightly outdated. See Part 5 for more up to date information. I take no responsibility for any damages due to the information or steps provided on this site. The content is for educational purposes only. You modify your own car’s firmware at your…
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Why is my TI-99/4A in Black and White?
My first computer was a Texas Instruments TI-99/4A. Longtime readers may remember a previous article where we implemented TI-99/4A BASIC as a Scripting Language for modern computers. Recently I got nostalgic for the actual hardware so I got my 99 out of the closet where it had been for a decade o…
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Holography without Lasers: Hand-drawn Holograms (1999)
I've stumbled across a technique for drawing holograms directly upon a plastic plate by hand. It sounds impossible, but I've been sitting on the livingroom sofa making holographic images of floating polyhedra, words, 3D starfields, opaque objects, etc. No laser, no isolation table, no darkroom, no expensive film…