Terence Eden. He has a beard and is smiling.

Terence Eden’s Blog

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Falsehoods Programmers Believe About Weather

· 8 comments · 300 words · Viewed ~359 times


Hundreds of snowflakes - each one unique and beautiful.

(Mostly written in response to this issue on the Awesome Falsehoods list) For those new to the format, there is a popular meme about things which computer programmers erroneously believe. This isn't intended to shame anyone - just to point out things which may not be immediately obvious to the neophyte. There's nothing us Brits love more than moaning talking about the weather. And, just as…

Setting the time on the Tildagon

· 1 comment · 400 words


Hexagonal circuit board with circular screen. It is showing the date and time.

I'm beginning my adventures in MicroPython in the hope that I'll have something interesting working on the Tildagon Badge for EMF2026. Here's a basic implementation of a clockface. Here's how to set the time on the badge. There's a hardware clock which should keep time between reboots. Install mpremote on your computer. Connect the Tildagon to your computer using a USB-C data cable On your…

Digital Litter Picking

· 450 words · Viewed ~257 times


Graphic showing a person depositing rubbish in a bin.

In an ideal world, people wouldn't drop litter. There would be plentiful bins and people would be responsible with their rubbish. In a slightly less ideal world, the local council would have enough money to clean up the mess left by people. But we don't live in an ideal world. People are ignorant and selfish. Councils are cash-strapped. So, once in a while, I'll go litter picking. I strap on a…

Displaying a QR code in MicroPython on the Tildagon Badge

· 2 comments · 900 words · Viewed ~682 times


A hexagonal circuit board with a circular screen. The screen displays a monochrome QR code.

This was a bit of a labour of love - and something I wanted to get running during EMF Camp. I'm documenting in the hope it'll be useful for EMF 2026! Here's the end result: Background I'm going to assume that you have updated your badge to the latest firmware version. You will also need to install mpremote on your development machine. You should also have successfully run the basic Hello,…

The Chancellor of the Exchequer doesn't understand Tax Law

· 5 comments · 500 words · Viewed ~237 times


Photo of Jaffa Cakes by "antidale" https://flickr.com/photos/antidale/4317399455/ .

Freedom of Information law is brilliant! It allows ordinary people to ask questions of the powerful and get solid answers. Sometimes these questions are sensible and journalistic. Sometimes they're vexatious. Sometimes they're a little silly. The silly ones can be fun to answer. It's a good chance for a politician to show their human side. It's pretty hard to get wrong. I mean, unless the…

Hack advertising regulations by forming a political party?

· 3 comments · 500 words


Advert for a fictional brand of cigarettes.

The UK has some tough advertising regulations. There are restrictions placed on gambling adverts, alcohol, tobacco, and all sorts of other products. But there are no regulations on political advertising. There are dozens of smaller parties contesting the UK's General Election. Some are single issue parties, some are independents, some parties contest multiple seats, some contest only one. …

VR Review: Moss 2

· 200 words


A mouse in a clockwork puzzle.

Did you enjoy the game Moss? This is a sequel which is identical to the original. The graphics are identical, the gameplay is identical, the puzzles are identical. There are a couple of slightly new mechanics and a new playable character (also a mouse). But it is fundamentally more of the same. So I suggest you read my review of the original. Seriously, there isn't much else to say here. The…

Review: USB Battery Charger (EBL C9010N)

· 5 comments · 250 words · Viewed ~204 times


Red and green LEDs above the batteries.

I'll review anything with a USB-C port. When hardware companies offer to send me a gadget to review, I'll always reply back with "only if it has USB-C". The EBL C9010N has a USB micro socket. *sigh* We live in the future now. Don't buy anything which requires you to have multiple cables and adapters. In terms of what the products does, it is… basically fine. Plug in Ni-MH or Ni-CD batteries and …

More thoughts on adding NFC to the Framework Laptop

· 7 comments · 450 words · Viewed ~305 times


I've got a fancy new Framework laptop. It comes with little expansion sockets - which allow you to plug in USB devices, HDMI ports, Ethernet cables, and all sorts. I want to add an NFC reader to it. So, step one was to find an NFC circuit board which worked with the hardware and was relatively small. Enter the ACM1252U-Z2. It works perfectly with Linux. It has a USB-Micro socket - but a…

Book Review: The Soul of a New Machine - Tracy Kidder

· 9 comments · 350 words


Book cover with circuitry design.

I hate it when I DNF a book. But "Soul of a New Machine" is just dull. It's sort of a hagiography of an obscure company which once made a 32 bit computer. All the men (and it seems to be mostly men) are in turns dull, agressive, or just dicks. As a sample quote: Grinning, he went on: “We’re trying to maximize the win, and make Eagle go as fast as a raped ape.” I completely see how staggering …

Review: Framework 16 Laptop

· 13 comments · 1,350 words · Viewed ~590 times


Guts of a computer.

Several years ago, I purchased a Clevo N151CU laptop with the idea that I'd gradually upgrade the RAM, storage, and other bits. After my keyboard failed, I found it difficult to find replacement parts. The whole point of the Framework laptop is that it is specifically designed to be modular. It come in kit form, is easy to disassemble, and is (reasonably) well supported by an ecosystem of…

Getting lots of BIMI images using Python

· 650 words · Viewed ~230 times


Glowing computer text showing dot com dot info etc.

I've written before about the moribund BIMI specification. It's a way for brands to include a trusted logo when they send emails. It isn't much used and, apparently, is riddled with security issues. I thought it might be fun to grab all the BIMI images from the most popular websites, so I can potentially use them in my SuperTinyIcons project. BIMI images are SVGs. Links to a site's BIMI are…