Category Archives: hardware

Simple micro:bit video out

Posted on December 3, 2021 by blogmywiki

I love making little computers and getting video out from Arduinos and even micro:bits – IchiconQuest is a lovely self-contained, if eccentric, computer you can make with a micro:bit that has video out. I stumbled upon the video above remarkably … Continue reading →

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Ceefax from an old Raspberry Pi

Posted on October 30, 2021 by blogmywiki

Got an old Raspberry Pi? Nostalgic for the golden age of teletext? Why not make your own in-house teletext server? For those who may be unaware, teletext was a service common in European (PAL TV standard) countries that transmitted news … Continue reading →

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micro:bit pulse oximeter

Posted on September 30, 2021 by blogmywiki

Around the same time I bought a cheap eCO2 sensor, I bought a MAX30100 pulse oximeter board for a few quid. I never got it working, partly because the protocol for making it work is very complex (way more complex … Continue reading →

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CCS811 indoor air quality sensor on a micro:bit

Posted on September 26, 2021 by blogmywiki

I was clearing out my toolbox of gubbins the other day and discovered an inexpensive CCS811 air quality sensor I’d bought ages ago and never done anything with. These are small sensors that measure Volatile Organic Compounds (VOCs) and can … Continue reading →

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Simple machine learning abstraction for kids

Posted on September 11, 2021 by blogmywiki

Update: this also works on a BBC micro:bit, scroll down to find out more! There are some great resources for teaching machine learning to kids, but I’ve noticed a lot of them rely on some magic happening in the cloud, … Continue reading →

Posted in computers, education, microbit | Tagged , , , , , , | 5 Comments