About me

Music producer, (ex-)DJ, electronics tinkerer, Linux enthusiast and coder.

Indicator for Gnote




My favorite note-taking app Tomboy is no longer available in Ubuntu software repositories since 19.04. The similar Gnote lacks the handy indicator menu (also known as a tray icon) providing quick access to recently edited notes, so I rolled my own.

Trapped


I felt compelled to write about music for a change, since it's mentioned in the blog header and all, so here's some criticism to begin with.

As a DJ I had the pleasure of closely following the development of rap music ever since the 80's, and IMO the "golden age" of the 90's was truly that. From 2000 onwards I've felt rap becoming too mainstream, too dumb and lacking meaningful messages.

LED wall control with Raspberry Pi, part 1


My IR camera project has been on hold for a while, because I've come up with other more interesting ideas, such as a LED wall. Initially I was inspired by the Aurora LED wall project, but I've realized that with the power of a Raspberry Pi and some Linux audio magic (PulseAudio and GStreamer) I could do much more.

Pre-enabling wifi and SSH on a Raspberry Pi SD card


I've bought many Pi Zero W's, as they're just irresistibly cheap, so I have a lot of little Linuxes (or is the plural Linuces?) running around the house.

Unfortunately I keep forgetting how to pre-enable wifi and SSH on the SD card for a headless setup, and every time Google finds me old, incomplete tutorials, leaving me wondering why a Pi is not connecting, so it's best I finally write my own.

Infrared motion sensor camera with Raspberry Pi Zero W, part 2


I decided to start with something simple like watching live video from the Pi camera on the local network. Raspbian comes with the raspivid utility, often used to simply record or pass camera picture to the HDMI output, but it's suitable for much more than that, especially with VLC, a multipurpose video toolkit.

Infrared motion sensor camera with Raspberry Pi Zero W, part 1


I've been planning to build a prototype battery-operated motion sensor camera using the latest addition to the Raspberry Pi family tree, the Zero W, which is quite a remarkable device for something smaller than my thumb. Even the wireless antenna seems quite revolutionary. With WiFi and Bluetooth built in, this tiny computer will be more than perfect for many IoT projects.

Context menu additions for sharing files in S3 buckets


Some time ago I wrote about mounting Amazon S3 buckets into your home directory, and I wanted to get automatic public URLs for sharing some of the files I stuff in my cloud buckets. I got it working quite effortlessly by writing a small script and adding a context menu item to my file manager.