Skip to content
All prices US$ - All orders receive free delivery, worldwide - Click here to learn more
All prices US$ - All orders receive free delivery, worldwide - Touch here to learn more
Build a Pythagorean Triangle Clock with AVR

Build a Pythagorean Triangle Clock with AVR

We love clock projects, and the latest example below by Julian Richardson is not only original but also somewhat educational - the Pythagoras clock. The display is based around the fact that a Pythagorean triangle can be made up from three sides that are 3, 4 and 5 units long.

Taking advantage of the factorisation of numbers for the time of the day, Julian has created a clock face using two Pythagorean triangles, laser-cut with LEDs behind each unit of length, for example:

Pythagoras Clock

With a little practice you will learn how to read the clock, and is perhaps a neat stepping-stone between normal clocks and binary versions. A demonstration is shown in the video below - where the clock starts from 9 o'clock:

The circuit is quite simple and is based around an Atmel ATmega168, which can easily be modified for your own development board. For complete details including code and the face template - visit Julian's interesting website. And if you're interested in making your own version, Tronixlabs can help you with the parts, such as:

And to keep up to date with interesting news, offers and new products - interact with us on facebook, instagram, and twitter.

Previous article Ken Shirriff Unlocks the Secret of an Unusual IBM SMS Board — Reverse Engineering an Early Modem

Leave a comment

Comments must be approved before appearing

* Required fields