The Signalman

I found an old rusty Signalman train badge and thought it would be perfect to fix to my ham radio receiver and
Morse decoder. I always like to name my projects and Signalman is perfect.
I burnt my finger whilst cutting the clasp off the back but it covers a nasty scratch on the box (the dangers of taking projects out and about I guess) and that is how the Signalman got its name.
Still loving the handset despite some funny looks when I’m out with it. Today whilst out walking I was able to pick up a couple of old gentlemen talking about building their own radios. I love listening in to snapshots of people’s lives like this. It’s like I’m fishing for good conversations with the Signalman being my net.

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Microbit Tone Synthesiser

I’ve always loved the maths behind tone benders and synthesisers, despite not being musically minded at all. Recently I got my hands on a BBC Microbit and decided to see what I could make it do in terms of tone generation.

Upon start up it selects a series of random notes and repeatedly loops through them. The potentiometers on the front allow you to change the pitch as well as the length of some of the notes in the loop.

In addition to the potentiometers on the front, there are also two buttons at the back that allow you to adjust the temp of all the notes as well as add more notes to the loop.

It’s still very much a work in progress but the current Micro Python code ever can be found here.

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Raspberry Pi Project

I wanted to get a bit more practice writing tutorials, so I submitted a simple tutorial to Instructables.com this weekend. I was really pleased to see it got featured in one of the Editor’s Choice section and hit over a thousand views in 24 hours.

If you have an old model Raspberry Pi or a Pi Zero and stuck for something to do then this simple project might just be for you. It’s all based around number stations, relics of the Cold War that transmit cryptic messages to spies out in the field. This tutorial shows how to broadcast over FM your very own station. Read it here.

https://www.instructables.com/id/Broadcast-Your-Own-Number-Station-on-the-Raspberry/

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