This is an oldie, but oh, man is this ever good. It’s a Nixie clock made without a microcontroller. In fact, there aren’t any logic chips in this circuit, either. As far as we can tell, the ...

COURSE GOALS: Cover the digital design knowledges on combinational logic circuit, sequential logic circuits, logic optimization, finite state machine design, counter and programmable logic, etc. The ...

This frequency counter is [Miguel Pedroso’s] entry in the 7400 Logic contest. After looking at the design we think this is a perfect project for those who have not worked with logic ICs befor… ...