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