If you’re going to learn digital logic, why not aim high? That’s what [Easton] and his friend did when they built a clock using only 4000-series logic chips. On a breadboard, no less. For a 1 Hz clock ...
Digital clock projects have been with us since the 1970s, when affordable LEDs and integrated circuits became available. In 2026 most of them use a microcontroller, but for the AliExpress fans there’s ...
When developing code to operate a real-time clock (RTC), it is often beneficial to understand how the clock core operating logic has been defined. This tutorial discusses the counter-chain structure ...