lcamtuf   

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Fun fact: there are about 2 grams of elemental iron in the blood of an average adult. A typical medieval sword is about 1 kg. So, if you want to forge a sword out of the blood of slain enemies, you need to make about 500 enemies.

With "The Secret Life of Circuits", I aim for the middle ground between simplistic introductory books and academic texts such as "The Art of Electronics". You don't need to take calculus to understand what this book is about, but it also doesn't insult your intelligence with plumbing analogies.

There's plenty of beautiful, hobbyist-friendly paperbacks that teach about Ohm's law and explain how to use a breadboard. Not as many help you grasp op-amps or transistors. Heck, even capacitors sometimes remain shrouded in mystery. I'm trying to solve that.

Anyway, if you've ever read a book about electronics and then felt completely helpless when trying to design your own circuits, SLC might be just what you need.

Linkety-link: https://lcamtuf.coredump.cx/electronics/

The Secret Life of Circuits

The Secret Life of Circuits

The cat's out of the bag! My latest book, "The Secret Life of Circuits", is available in early access:

https://lcamtuf.coredump.cx/blog/secret/

It's the reference I wish I had when I was starting out. Electrons to embedded systems, 290+ color illustrations and 420+ pages of well-explained theory.

The Secret Life of Circuits

Many of you follow this blog because of the regular features about electronic circuit design.

Why I probably won't be opining on Mythos: https://lcamtuf.coredump.cx/blog/punditry/

Interesting. It would appear that something has changed on Hackernews around April 8. Up until that point, the daily line-up was pretty much dominated by stories written by AI or about AI. After that, it pretty much stopped.

(I've been tracking it for a while for fun.)

Audio toy with a hand crank. I kinda wanted to recreate the experience of "scrubbing" analog audio on a turntable or a tape recorder.

Updated article (outlining another design first): https://lcamtuf.substack.com/p/mcu-land-part-4-building-an-audio

Source code: https://lcamtuf.coredump.cx/soft/embedded/playback2.tgz

A Sony FD-30A with it's 4.5cm diagonal "lolipop" CRT.

Whole unit is roughly the size of a modern cell phone, although quite a bit thicker.
Look, the 1950s just hit different

Techies: with IPv6, we'll never run out of addresses!

Also techies:

Text drawing with my AVR video transmitter: