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  Testing Oops! All Servos!

  Do the level-shifters work in both directions? Can you measure the current draw? How far can you push the Oops! All Servos!, microcontroller and servos? Development sponsored by JLCPCB.

  2026-08-10

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  Adding Dark Mode to my Blog

  I've finally caved; against my better judgement, I've added a dark colour scheme to my blog. In 2026, with modern CSS, this is easier than you might imagine.

  2026-08-04

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  Building Oops! All Servos!

  Even though these boards were sponsored by JLCPCB, I still wanted to save some money, so I opted to handle the through-hole components myself. I also deliberately ordered a few unpopulated PCBs to use as assembly jigs.

  2026-08-03

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  Coming soon... Oops! All Servos!

  I'm proud to announce Oops! All Servos!, an expansion board for XIAO/QT Py compatible microcontrollers, breaking out all 11 GPIO pins into servo motor headers, the development of which has been sponsored by JLCPCB.

  2026-07-28

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  Peter de Jong Attractors

  Last week I published a new web toy, a Peter de Jong attractor visualiser. Written in plain JavaScript and rendering to a canvas, it comes with a small amount of interactivity to alter the co-efficients and see the visualisation change.

  2026-06-11

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  Keeping it old school, Unix style, with inetd services!

  How to build quick and dirty network services, the Unixy, way with the venerable inetd approach.

  2026-04-23

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  Using a Spy! Break! Inject! to Sniff I2C Traffic

  I've been exchanging emails, discussing debugging protocols like I2C with my Spy! Break! Inject! and I thought that writing this up as a blog post might be useful to others.

  2026-01-31