Electrics: Part 1

29 July 2007
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I am working on building a physical version of Word Clock, from scratch, with electronics components. Here’s the first working circuit:

I’ve been learning electronics from various books and all over the web. One of the best resources I’ve found is Bowden’s Hobby Circuits which includes some lovely clock examples and circuits. This circuit is partially based on the 72-LED clock, but I’m using a very accurate crystal oscillator for the seconds pulse and a different approach to the startup sequence.

Next stage is to build up the seconds, hours and minutes LEDs and add time setting functions.