Category Archives: hardware

Collect and graph micro:bit data on a Raspberry Pi

Posted on July 17, 2022 by blogmywiki

Using a BBC micro:bit, an old Raspberry Pi and a surprisingly small amount of code, you can log sensor data in a simple CSV (comma separated values) text file and plot it on an interactive graph you can access from … Continue reading →

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A tiny screen for a Raspberry Pi

Posted on June 9, 2022 by blogmywiki

I have a few old Raspberry Pis lying around, including a Model B Rev 1 running Raspberry Pi OS Buster lite. I use it to serve up my simple MUD game. It has no wi-fi so it’s connected by ethernet … Continue reading →

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Streaming internet radio on FM

Posted on June 7, 2022 by blogmywiki

Years ago I remember thinking how amazing it was that the Raspberry Pi could be turned into an FM radio transmitter with nothing more than a short piece of wire and some code. Back then you could only transmit audio … Continue reading →

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Emojify your Python

Posted on April 11, 2022 by blogmywiki

I’ve been thinking of ways of sharing Python programs on Twitter and I’ve come up with something a bit crazy, but which might have other uses. The micro:bit Python emojifier encodes and condenses Python programs using emojis. It also decodes … Continue reading →

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micro:bit numbers station

Posted on April 9, 2022 by blogmywiki

Numbers stations are / were spooky shortwave radio stations, best known from the Cold War, which broadcast human voices reading numbers, usually in groups of five. It’s widely assumed these were / are used by many nations for communicating with … Continue reading →

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