Binary clocks are often created as a programming exercise, or to display the time in a project with the minimal practical components. Displaying the time in binary needn’t always be for practicalities sake, however. The City Clock shows that it can be applied quite artfully, too.
The electronic side of things is simple – an Arduino Nano runs 13 LEDs, with a digital IO pin for each. Including a real time clock module is optional, though we imagine pretty essential if you wish the clock to keep accurate time. The LEDs are fitted into a grid, which is fitted behind the windowed facade of the building. This helps block light leaks between adjacent segments, giving a more polished look to the final design. The whole assembly is built out of lasercut wood, making it a quick and easy build if you’ve got such a tool handy.
It’s a simple concept, but one that is particularly striking in action. Even to those unaware of its horological abilities, it presents the appearance of a living building, with inhabitants switching lights on and off throughout the day. It would make an excellent bookshelf or coffee table piece, and we’re highly tempted to give building our own a go. Video after the break.