• Making Stickers

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    Sticker paper is easy to find, but without post-processing the stickers aren’t very durable. A bit of moisture and the ink starts to run. Let’s test if a few coats of varnish can make them more resistant. If you aren’t blessed with good penmanship, printing stickers is an easy out...


  • Tiny MIDI controller with Raspberry Pi Pico

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    With a MIDI library available for the Raspberry Pi Pico making a little MIDI “piano” is relatively easy. The MacroPad which I build last month is the perfect little device to play around with this. If you are interested in how to connect buttons and LEDs to a Pi Pico,...


  • Altair + Vega + Justcharts = Interactive Visualisations in Static Websites

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    Despite being a huge proponent of using interactive plots when publishing data visualisations on the web, the plots on this blog are all static. Using Altair, Vega and a little library justcharts all pieces finally fell into place to start practicing what I’ve been preaching on this blog as well!...


  • Printing Rise of the Keyraken with PrinterStudio/MPC

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    Do you want some professionally printed cards for Rise of the Keyraken? Here is how to prepare the Print-and-Play assets from Fantasy Flight Games for printing through a service like PrinterStudio or Make Playing Cards (MPC). FFG has previously released Print-and-Play decks for KeyForge. The idea is that these PDFs...


  • Expanding Zigbee Range with Ikea Tradfri Repeaters

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    My brand new Aqara Sensors were on the very edge of my Zigbee range, resulting in unwanted disconnects every few days. Fortunately Sweden’s largest contemporary designer has a cheap solution … though getting it to run with Home Assistant was a bit of a challenge. The temperature, humidity and pressure...


  • Fighting Batch Effects with pyComBat

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    Even high-end scientific equipment can have a bad day! Machine performance can be affected by ambient temperature, humidity, … so when samples are measured in different batches, this needs to be corrected for. In this post we’ll have a look at the Python package pyComBat which does this elegantly and...


  • A Python powered MacroPad/StreamDeck

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    I decided to put left-over parts from my mechanical keyboard and a Raspberry Pi Pico to good use and build a MacroPad. This is a small keypad, where each switch can be programmed with a certain button or combination of buttons to quickly execute often needed shortcuts. Streamers often have...

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