Vermes
Advanced Member level 4
Firstly, how the whole idea of that clock came. “BIT.TRIP BEAT” is a console game. The most special thing about it is the font used to display the score. It's atypical angular style 4x3 pixels. That font is ideal one for every enthusiast of low quality.
The clock was based on the font. The most important thing needed was the matrix made of square diodes. It wasn't easy to get diodes without the collar which prevents placing the elements close to each other. Every element was hand cut to reach the desired effect. Green-olive LEDs chosen to this device don't give too bright light, it turned out necessary to give up multiplexing for the benefit of direct controlling by series-parallel registers.
The reached accuracy of that clock is about 1minute per year (thanks to DS3231). It's a very good result. The battery backup time counting makes it insensitive to the lack of power. The main element is immortal Atmega8. The whole construction is powered from an external power supply 5V. It is also a possibility of powering from USB.
The whole electronics consists of a display plate and the driver.
The housing was the most time-consuming part of the project. It consists of a photo frame, a cut part of plexiglass darkened with foil to the glass, a page from a sketchbook for dry pastels placed behind the plexi that gives the effect of deep black and a carton.
Link to original thread – Zegar BIT.TRIP - konstrukcja Gigantora