These days, streaming services are a great way to listen to music or podcasts on your computer or on the go. However, they lack one feature of the MP3 players and streamers of old: visualizations!

Satisfies a need in my electronics lab: There are plenty of fantastic spectrum analyzers out there, and most of them have a bottom end of 100 kHz (or higher). That should be my top end (need to see ...

This one caught my eye on twitter, the Arduino Audio Meter - an Arduino-based device described as spectrum analyser and guitar pedal in one... It's based on the Uno board, to be precise, fitting ...