It's about collecting stickers.
It's about the friends you make when collecting stickers.
Readit Newsem3rgent0rdr commented on FOSDEM 2026 – Open-Source Conference in Brussels – Day#1 Recap gyptazy.com/blog/fosdem-2... · Posted by u/yannick2k
em3rgent0rdr commented on "Anyone else out there vibe circuit-building?" twitter.com/beneater/stat... · Posted by u/thetrustworthy
Had this same experience back when I first learned to program a PIC microcontroller. You really shouldn't be driving LEDs directly off IO pins anyways. I think the digitalness of IO pins also lends itself to not thinking about the underlying circuitry and coming at it from a software lens.
It depends. Many modern microcontrollers are perfectly fine driving LEDs directly off IO pins if the pin specs say it is rated for sufficient current (like 20mA). However, older ones like ESP8266 can only do like 2mA and the 8051 even less. Or you run into a total power budget issue if your are running too many pins. Also, some IO pins are perfectly fine at sinking current to ground but aren't suited for sourcing current, in which case the LED would be directly connected to an external high voltage and the IO pin would simply be switching to ground or not.
Asbestos causes mesothelioma and gruesome death. C does not. Be serious.
When C code is run in machines capable of failing with gruesome death, its unsafeness may indeed result in gruesome death.
Every year at around this time there is a lot of linux related content in tech media.
It's a slow moving evergreen topic perfect for a scheduled release while the author is on holiday. This is just filler content that could have been written at any point in the last 10 years with minor changes.
I don't think the prevalence of these articles this time of year is because the authors go on holiday, but instead is because the new year is the perfect time to ponder: "Will this be the year of the Linux desktop?"
em3rgent0rdr commented on Ultra-Low-Latency Trading System submicro.krishnabajpai.me... · Posted by u/krish678
Why can't these posts just say "microsecond" instead of the vague and misleading "ultra-low"?
em3rgent0rdr commented on Qt, Linux and everything: Debugging Qt WebAssembly qtandeverything.blogspot.... · Posted by u/speckx
Very useful. It would be great for the browser become the cross-platform application target. I've been eagerly waiting for Qt WebAssembly to mature.
Looking at the complexity and area of hardware floating point, I often wonder why we don't see more unified combined integer+floating point units, like done in the R4200 [1], which reused most of the integer datapath while just adding a smaller extra smaller 12-bit datapath for the exponent.
em3rgent0rdr commented on Tiny Core Linux: a 23 MB Linux distro with graphical desktop tinycorelinux.net/... · Posted by u/LorenDB
It's so much fun working with systems with more pixels than ram though. Manually interleaving interrupts. What joy.
If you use a tile-based hardware renderer, such as on the original nintendo chip, then pixels are rendered on the fly to the screen by the hardware automatically pulling pixels based on the tile map.
em3rgent0rdr commented on Cursed circuits: charge pump voltage halver lcamtuf.substack.com/p/cu... · Posted by u/surprisetalk
A relevant part that changed my view of charge pumps is the LTC7820 [0]. This is an inductorless charge pump that can be used as a an unregulated voltage doubler or halver... at 500+ W and 98%+ efficiency. I used to think of charge pumps as designed for generating bias voltages where the actual power is quite small... but this shows that they scale quite well. (There's also the LTC7821 that combines the unreglated inductorless halver of the '7820 with a regulated, nominally-2:1 buck to give a regulated 48V -> 12V converter with some impressive efficiency numbers.)
[0] https://www.analog.com/media/en/technical-documentation/data...
The '7660 is good for low-power and is my go-to DIP-8 part when I need a half or double voltage supply on a breadboard.