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lcamtuf’s thing

lcamtuf’s thing
The Review Interior of a low-rise office park.
yesterday
lcamtuf’s thing
meta: apologies for the spam... To explain: in several places in the UI, the platform encourages you to enable “subscriber chat” —...
a week ago
7
a week ago
To explain: in several places in the UI, the platform encourages you to enable “subscriber chat” — but doesn’t really explain what it does:
lcamtuf’s thing
How security teams fail There are mistakes most companies are more or less bound to make.
a week ago
lcamtuf’s thing
Choosing a microcontroller RP2040, ESP32, AVR, PIC, STM32...? When it comes to hobby projects, there's plenty of choice and...
a week ago
11
a week ago
RP2040, ESP32, AVR, PIC, STM32...? When it comes to hobby projects, there's plenty of choice and just as much zealotry.
lcamtuf’s thing
What's the deal with magnetic fields? I apologize, but there won't be any Insane Clown Posse jokes in this article.
2 weeks ago
lcamtuf’s thing
Working with OLEDs: SSD1353 & SSD1333 A quick intro to interfacing common OLED displays to bare-metal microcontrollers.
3 weeks ago
lcamtuf’s thing
PCBs, ground planes, and you A closer look at a fashion trend in printed circuit board design.
3 weeks ago
lcamtuf’s thing
UI is hell: four-function calculators One of the simplest and best-known computing devices on the planet is a fascinating study in...
4 weeks ago
lcamtuf’s thing
Don't build a platform... unless? "Build a product, not a platform" is a common saying among tech entrepreneurs. But why do some...
a month ago
26
a month ago
"Build a product, not a platform" is a common saying among tech entrepreneurs. But why do some platforms succeed?
lcamtuf’s thing
Investigating an "evil" RJ45 dongle Reverse-engineering hardware can be difficult -- but sometimes, all you need is a comfy armchair and...
a month ago
32
a month ago
Reverse-engineering hardware can be difficult -- but sometimes, all you need is a comfy armchair and some Google Translate.
lcamtuf’s thing
Random object: Sony Mavica MVC-FD73 Floppy disk digital cameras, or why our views of technological progress are not always rooted in...
a month ago
lcamtuf’s thing
Getting silly with C, part (void*)2 They won't be able to find bugs in your code if they can't figure out how it works.
a month ago
lcamtuf’s thing
Weekend projects: Sketchy Sketch Making a nicer version of a forgotten, electronic Etch-A-Sketch toy.
a month ago
lcamtuf’s thing
Choosing an op-amp for your project Just say no to LM741.
a month ago
lcamtuf’s thing
Against the hydraulic analogy The most popular tool for teaching electronics makes the trade harder to learn.
a month ago
lcamtuf’s thing
A 15-minute intro to resin casting At one point in my life, I penned an epic, 110-page opus on hobby manufacturing.
2 months ago
lcamtuf’s thing
Lies, damned lies, and photodiodes Diffusion and drift currents: depending on what you're trying to do, photodiodes can be really fast...
2 months ago
22
2 months ago
Diffusion and drift currents: depending on what you're trying to do, photodiodes can be really fast or infuriatingly slow.
lcamtuf’s thing
The marvelous disappearing capacitor The performance of photodiode amplifiers can be improved in a clever way.
2 months ago
lcamtuf’s thing
Building a phosphorescence detector There's very little written about natural phosphorescence. Let's design a device that can spot it in...
2 months ago
lcamtuf’s thing
A 15-minute intro to involute gears Involute gears are everywhere: toys, kitchen appliances, cars. But what's so special about their...
3 months ago
lcamtuf’s thing
Deep dive: the (in)stability of op-amps A closer look at op-amp feedback loops and the stability criteria for circuits that use them.
3 months ago
lcamtuf’s thing
Shining light on photodiodes Photodiodes are incredibly versatile, but commonly misused and misunderstood.
4 months ago
lcamtuf’s thing
RAM: the forgotten history We owe computers not to Charles Babbage, but to the invention of electronically-controlled working...
4 months ago
15
4 months ago
We owe computers not to Charles Babbage, but to the invention of electronically-controlled working memory.
lcamtuf’s thing
Analog filters, part 2: let it ring A continuation of the gentle intro to analog signal filtering. In today's episode: the Sallen-Key...
4 months ago
lcamtuf’s thing
How do wood finishes hold up? A quick 18-month experiment to shed light on traditional woodworking lore.
5 months ago
lcamtuf’s thing
A 15-minute intro to hobby CNC In which the author tilts at windmills for a brief while.
5 months ago
lcamtuf’s thing
The untimely demise of an image upscaler ML-based image enhancement models are great. Unfortunately, some of them are great only once.
5 months ago
lcamtuf’s thing
The secret lives of snowblowers Yes, they throw snow. But the mechanical design of residential snowblowers is more interesting than...
6 months ago
lcamtuf’s thing
Electric chainsaws and the gorge of misery Lithium batteries are great -- so why do mid-size electric power tools suck in 2024?
6 months ago
lcamtuf’s thing
Dispatches from the farm upstate Middle-aged computer expert opts to escape civilization, offers dubious life advice.
6 months ago
lcamtuf’s thing
The serious science of trolling LLMs The internet's oldest pastime finally has a purpose -- and it's more serious than AI companies would...
7 months ago
5
7 months ago
The internet's oldest pastime finally has a purpose -- and it's more serious than AI companies would like to admit.
lcamtuf’s thing
The 101 of analog signal filtering Some intuition about this topic can be developed without summoning the ghost of Pierre-Simon...
7 months ago
lcamtuf’s thing
Weekend projects: getting silly with C C is beautiful yet full of horrors. Here's to uncovering its hidden depths.
7 months ago
lcamtuf’s thing
Random objects: Intel Edison A glimpse of the missteps of x86 in the embedded world.
8 months ago
lcamtuf’s thing
Random objects: Guycot & Jarre Early repeating handguns, or another unnecessary excursion into the bowels of history.
8 months ago
lcamtuf’s thing
The 8-bit (MCU) manifesto Eight-bit microcontrollers aren't relics; they are a design philosophy. You might want to use them...
8 months ago