Słomkowski's technical musings

Playing with software, hardware and touching the sky with paraglider.

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Welcome to my website! Recent articles published or updated:

Cheap flight computer combining Kobo Mini and BlueFly Vario module

Cheap flight computer combining Kobo Mini and BlueFly Vario module

Using e-book reader Kobo Mini with BlueFly Vario is a really cheap alternative to of-the-shelf paragliding variometers. I have built one with custom 3D-printed case.

Octoglow VFD - Geiger counter and magic eye

Octoglow VFD - Geiger counter and magic eye

Most vintage-like board of Octoglow. The heart of the device is a Geiger counter accompanied with magic eye tube. There are many vintage components used.

Octoglow VFD - Fallout-inspired display

Octoglow VFD - Fallout-inspired display

This eponymous project mixes modern technologies with obsolete ones like vacuum tubes and germanium transistors. Basically, it is an informational display heavily inspired by Fallout games, which you can put on your desktop.

Octoglow VFD - Clock display board

Octoglow VFD - Clock display board

Second module of Octoglow, which contains numerical VFD to display wall time and 433 MHz weather sensor receiver.

Octoglow VFD - Main display board

Octoglow VFD - Main display board

Module which drives the most prominent component of Octoglow, the alphanumerical dot-matrix display. Hidden behind the bakelite front resembling old radio receivers.

Octoglow VFD - Orange Pi Zero board and software

Octoglow VFD - Orange Pi Zero board and software

Module which houses the brain of the Octoglow - the Orange Pi Zero single board computer. It also contains I2C DAC to drive analog gauges to show CPU usage in real time.