Clocks are cool. Especially when they're binary :)

I made the digital binary clock in 2002 before I went to college. It was a way for me to test my logic circuitry design skills. It's built using discreet CMOS logic chips (some And, Or, Nor, and Not gates and some D-type Flip-Flops for the memory). Its got a dimmer knob on the left side and a couple of buttons to set the time on the right. The buttons are debounced with a simple RC damper circuit. The wiring is all point to point hand soldered. I think it makes for a cool look, but troubleshooting any problems can be a little difficult. The oscillator is made from a design I found online. It uses a couple of Not gates and a 32.678kHz crystal to create a clock signal that can be divided down to 1Hz. The 1Hz signal is fed in to the array of flip-flops. The power is provided from a 9VDC wall wart.

The case is made from an old piece of industrial aluminum door frame. I cut a hole for the display and one for the power and capped the sides with more aluminum. It's a little beat up because it's used, but it still provides a strong place to keep the electronics safe. This clock has been running for over ten years now and shows no signs of stopping. With the trim capacitor I've been able to tune it to keep very accuate time.

.

With the analog clock I used a ring type binary I thought up to write the numbers. I added a Bible verse that I think works well with the binary.

I know your deeds, that you are neither cold nor hot. I wish you were either one or the other!