The clock is made of a collection of counters. Counters made by a chain of n flip-flops result in binary ripple counters capable of dividing by 2n. A four flip-flop counter naturally counts from 0 to 15. To make it count from 0 to 9, it needs some steering logic on the flip-flop toggle inputs.
So, my wife volunteered me for “Science Day” at my son’s elementary school — an annual half day program where moms and dads taught mini-courses on everything from rocketry to zoology to chemistry. But what could I teach the kids? No sooner did the thought cross my mind, did I get the answer: build a video game!
I’ll show you two examples of circuits that don't use a micro but are often built with one, and explain some of the logic and theory behind these circuits.
After years of fumbling with capacitors and signal generators, it’s extremely gratifying to be able to touch any old inductor to the contact pads and have the meter tell me its value. I hope you’ll find this device as useful as I do.
What kind of home project has 82 legs, horns, and will never have all of the "bugs" worked out of it? The answer is "H-2-Opus," a BASIC Stamp driven musical water fountain.
