Add project writeups

src/content/posts/lights-synchronized-to-music.md

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+---
+title: Lights Synchronized to Music
+description: A Raspberry Pi music player that analysed audio output and drove RGB LED strips.
+date: 2026-04-26
+projectPeriod: 'Spring 2016'
+thumbnail:
+  src: ./_assets/leds.jpg
+  alt: RGB LED strips lit by a music synchronisation project.
+tags: ['systems', 'tools']
+role: Hardware and software author
+stack: ['Python', 'NumPy', 'FFT', 'Raspberry Pi', 'Vanilla web']
+outcome: My first finished non-trivial project, combining a web UI, audio processing, and hardware output
+audience: technical
+links: []
+---
+
+A Raspberry Pi ran a small music player, and the audio it produced drove the colour of a couple of RGB LED strips through some MOSFETs.
+
+It was the first non-trivial project I actually finished. Far from perfect, but I am still proud that I built it on my own.
+
+The backend was Python, with NumPy doing the FFT. The frontend was a vanilla web page for picking tracks and tweaking settings.