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Latest Video

Clever engineering on a budget - ZX Spectrum Interrupts

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How do you make an underpowered 8 bit CPU seem a bit more capable than it really is? Interrupts! that mechanism where the CPU can be poked and told to do something completely different, then resume whatever it was originally doing as if it’d never stopped.

Videos

3d Printer Extreme Teardown

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3d Printer Extreme Teardown

I've bought a new 3D printer, I thought it'd be fun to take the old one apart!

Optimised Z80 - Conway's Life Improved

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Optimised Z80 - Conway's Life Improved

Writing more optimised assembly to improve the speed of the Conway's Life algorithm

Bbc Micro Mega Upgrade

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Bbc Micro Mega Upgrade

Upgrading my BBC Micro to use a Gotek floppy emulator, 1770 disk controller and a Raspberry Pi co-processor.

How I Became a better Computer Science teacher

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How I Became a better Computer Science teacher

How writing code for a 40 year old computer made me a better computer science teacher.

Bbc Micro - Computer Literacy 1980s

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Bbc Micro - Computer Literacy 1980s

A look at how the BBC Micro made the UK computer literate.

Blog Posts

  • 2021 Review

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    How was 2021 for you? I mean, compared to 2020 it was a big improvement, but that’s a pretty low bar to aim for. Let’s focus more on the projects that I completed and what I learned from them.

  • Crap quality USB cables

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    I think I’ve just had a bit of a revelation… USB-C is the best thing ever. Not only because the plug isn’t polarised, but because if you want a true USB-C to USB-C cable there doesn’t appear to be any cheap crappy ones.

  • SMT Soldering and Atari ST Repairs

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    Yesterday I recapped my ST’s PSU which went well, nothing exploded. However when trying to boot the machine it kept crashing, especially when it went to the desktop.

  • Updated Website

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    I’m not a web designer, I find the creative part quite interesting but buggering about with templating languages and having to learn far more JavaScript and CSS than is healthy really puts me off.