N-gated Hacker News5d ago
🎥 Oh, look! Another brave soul who buys broken camera lenses because logic is overrated and savings mean nothing! 🤦‍♂️ Let's all admire the heroic journey of someone who dives into the complexities of lens repair only to save a few bucks, all while convincing themselves this is a 'hobby.' 🙄🔧
https://salvagedcircuitry.com/sigma-45mm.html #brokenlenses #lensrepair #hobbyist #savingshero #cameraenthusiast #HackerNews #ngated
Sigma 45mm f/2.8 Lens Repair & Analysis | Salvaged Circuitry

I stumbled across a broken Sigma 45mm f/2.8 Art lens for a very cool $58.65 USD that I simply could not resist. I've been eyeing an AF lens in the 50mm range for my recent endeavors with L-mount cameras and this looked like the perfect fit. This lens is commonly found as a kit with the very excellent full-frame Sigma FP camera series. Here is my comprehensive guide to bringing the lens back into service. I delve into the nitty-gritty details of lens PCB repair and lens disassembly techniques.

Show threadRichard PennerJun 2

@chockenberry @Cdespinosa I write this while looking at my Apple IIe, my IIgs, my monochrome green CRT that I used to watch VHS on when I was too poor to afford a second screen. (Ted Turner never even attempted to colorize The Terminator into its original green and black.)

#TechHoarder or #Hobbyist ?

Jean May 14
Hello you! This is Jean (clearly Im not the raptor). I just moved my photo gallery from pixelfed to vernissage. I haven't moved everything yet except followers as I am only trialling this one as its more flicker-vibes than Instagram.

#BirdsOfMastodon #BirdsofFediverse #Raptors #BirdsOfAustralia #Darktable #WildlifePhotography #BirdPhotography #Hobbyist
N-gated Hacker NewsMay 4
Wow, a #hobbyist spent 3 months #tracking #petrol #prices like it’s the new Pokémon Go, but with #spreadsheets instead of Pikachu. 📊🔍 Meanwhile, the rest of us were busy doing literally anything else. ⛽️🤷‍♂️
https://www.fuelinsight.co.uk #PokémonGo #dataanalysis #petrolprices #HackerNews #ngated
UK Fuel Price Intelligence

Live UK fuel price averages, motorway premium, supermarket discount and brand comparisons from the Fuel Finder scheme.

KulturKarteApr 22

Exhibition Opening: "Hobby" with Stefan Brandmayr / Pia Mayrwöger

bb15 – space for contemporary art, Thursday, April 23 at 07:00 PM GMT+2

Hobby

  • Stefan Brandmayr / Pia Mayrwöger

  • 23.04.2026 – 08.05.2026

Exhibition Opening: April 23rd, 7pm
Opening hours: 23. April 2026 – 08. May 2026
Wednesday – Friday, 3 – 6pm or individual appointments

Ein Hoch auf den Feierabend. Hobby machen, Hobby rauchen. Opportunities for social connection and skill development. Leidenschaft trifft Besessenheit. Wir holpern durch den Alltag, laut und erzeugend: Baggern im Hinterhof, Vogelhäuser bauen. Für Leute, die nicht mögen, was sie tun. Hobby riecht nach Kleber.

Stefan Brandmayrs Skulpturen bestehen aus Kombiniationen von Stahldraht, Presspan, Epoxidharz, Fiberglas und Styrodur. Sie sind bunt, verhandeln Geometrien und Volumen, zelebrieren das Wackelige und inszenieren sich als handwerkliche Laien. Spuren der Produktion werden immer umarmt, niemals verwischt.
https://www.stefanbrandmayr.net/

Pia Mayrwöger lebte und arbeitete als freischaffende Künstlerin in Linz. In ihrer künstlerischen Praxis beschäftigte sie sich weitestgehend mit dem Themenfeld Arbeit. Mit Hilfe von einfachen Maschinen lotete Sie die Grenzen zwischen industrieller Produktion und dem Wert des künstlerischen Objekts aus. Ihre Arbeit wurde unter anderem mit dem Arbeiterkammer Kunstpreis (2021), dem Arbeitsstipendium des Bundesministeriums für Wissenschaft und Forschung und Bildung (2021/2022) sowie dem Linz AG Atelierstipendium der Kunstförderpreise der Stadt Linz (2022/2023) ausgezeichnet und werden im In- und Ausland gezeigt.
https://www.piamayrwoeger.at/

https://kulturkarte.servus.at/event/exhibition-opening-hobby-with-stefan-brandmayr-pia-mayrwoger

N-gated Hacker NewsApr 18
Ah yes, another riveting tale of microcontrollers—because who doesn't love a deep dive into floating point #arithmetic on a #hobbyist chip? 🙄 Spoiler: if you enjoy endless links leading to nowhere and cryptic jargon, this post is your Disneyland. 🎢 Go ahead, embrace the thrill of being hopelessly confused! 🤓
https://danielmangum.com/posts/floating-point-cortex-m/ #microcontrollers #floatingpoint #techhumor #confusion #HackerNews #ngated
Floating Point Fun on Cortex-M Processors

In my recent post on the PSA Crypto API, I demonstrated the use of the API on two different MCUs: the nRF52840 and the ESP32-S3. In the case of the former, the ECDSA signature operation was eventually executed in a closed source library that manages communication between the Arm Cortex-M4 processor and the Arm TrustZone CryptoCell 310 security subsytem. Readers that ventured down the rabbit hole of links in the post may have noticed that there are variants of the nrf_cc310_mbedcrypto libraries for hard-float and soft-float.

Tindie Maker MarketplaceApr 6
Classic Radio Shack Protoboards #TindieBlog #Prototyping #Hobbyist #Electronics #RadioShack #WorkbenchClassics
https://blog.tindie.com/2026/04/classic-radio-shack-protoboards/
Classic Radio Shack Protoboards

Radio Shack famously made many different products for hobbyists and professionals alike. Their series of protoboards were specially designed to fit inside project boxes that were also sold by Radio…

Tindie Blog
Mitex LeoApr 4

Any solar enthusiasts here? I would like to follow some people who do interesting stuff.

#Solar #Renewables #Energy #hobbyist

Jan DMar 25

I write most of my code assuming that I do not read it for quite a while. If I would live in it everyday, I would probably prefer fewer comments and shorter variable names.
Also: How to run and update the project is what I seem to forget the easiest, so a section in the readme for that seems to be essential.

#programming #hobbyist

Ajit AnanthadevanMar 5

In early 2023 upcoming Chinese #MCU vendors appeared to cause notable disruption in the #embedded space. Now as the dust settles, we'll reflect on the viability of their market relevance:

These vendors promised more punch for the same price. But was it just a gimmick?

With perceived drawbacks such as: low reliability/yeild, questionable stock longevity, and fears of backdoor access (on a simple MCU??), I believe they do have their place.. But for high volume industries (with access to mainstream vendor's FAE programs) the cost attribute fades away.

They may fit into circumstances when:
- Cost is the #1 driver: Consumer electronics, toys, disposable IoT sensors, LED lighting
- Volume is low-to-mid: where FAE pricing support isn't available, for startups and mid-sized companies.

And ofcourse the #hobbyist who takes up a challenge just for the fun of it!