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Hi, I'm Iljitsch van Beijnum. These are tech/gadget related posts.

Review: Sigma BC 16.16 STS CAD cycling computer

As I wrote earlier: recently, I lost another bike computer so I needed a new one. I decided to get a more recent version of the Sigma BC line that I've been using for the past decade: the Sigma BC 16.16 STS CAD. These seem to be on the way out now, being sold out almost everywhere. But no obvious replacement that isn't more expensive and more complex, so I'm glad I got to get one of the last ones.

Full article / permalink - posted 2023-01-01 - 🇳🇱 Nederlandse versie

Speed and cadence sensors for your bicycle

It happened again: I look at my bicycle handlebars to see how fast I'm going, but my bicycle computer was gone. This happens to me every three to four years. A goot moment to reconsider what information I really need during and after cycling.

So let's talk about bluetooth and ANT+ bike speed sensors and Sigma Sport ATS and STS bike computers.

Full article / permalink - posted 2022-12-20 - 🇳🇱 Nederlandse versie

Smart home Matter and Thread misconceptions (or not?)

I just saw a Youtube video kind of reviewing the new Thread smart home communication protocol. I'm not linking to it because it attributed a bunch of things to Thread that are Matter, unless I'm very much mistaken. (And the latter is certainly possible. Do your own research before buying new stuff.)

Matter logo

Matter is the new IP-based system that lets a smart home "ecosystems" such as Amazon Alexa, Google Home, Apple HomeKit and Samsung SmartThings talk to smart home accessories. Matter has two big advantages. The first one is that you're no longer locked into a single ecosystem or a limited number of ecosystems. Every ecosystem that supports Matter can control accessories that use Matter. Even better, multiple ecosystems can control the same accessories.

Thread logo

Thread, on the other hand, is simply a wireless protocol for talking to smart home accessories.

Full article / permalink - posted 2022-12-03

Smart home: past, present, future

Recently, a few podcasts that I listen to talked about smart home technology. We also got the release of new smart home standards Thread and Matter. So I want to look at what smart home options have worked for me, and see if it's possible to draw any conclusions about what could work for most people. (As in: who don't enjoy tinkering with tech for its own sake.)

Read the article - posted 2022-11-27

The framerate conundrum

These days, most of us have devices that can shoot video. And that's no longer as simple as it was 25 years ago. Back then, if you lived in a "60 Hz" country such as the US, your video camera would shoot 30/60 frames per second. (See interlaced video on Wikipedia to understand why this is "30/60".) In parts of the world where the electrical grid runs at 50 Hz, such as Europe, our video cameras would use 25/50 Hz.

Because converting 24 frames per second film to 25 frames per second video is horrible (the image stutters once a second), in 50 Hz territories, film would be sped up to 25 FPS to show on TV or record on video tape or DVD.

These days, we all just watch Youtube where the video framerate can be 24, 25, 30, 50 or 60 FPS.

Most of us also have a video recording device in our pockets that usually supports at least several different framerates.

So... what's the best framerate?

Full article / permalink - posted 2022-10-04

xkcd: The Best Camera

The Best Camera:

Permalink - posted 2022-07-13

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