digital clock – Dangerous Prototypes

Inside the digital clock from a Soyuz spacecraft

Ken Shirriff has written an article on reverse engineering a “Onboard space clock” from a Soyuz mission: We recently obtained a clock that flew on a Soyuz space mission.1 The clock, manufactured in 1984, contains over 100 integrated circuits on ten circuit boards. Why is the clock so complicated? In this blog post, I examine […]

Manual 7 segment display

Here’s a SevenBlocks project by Kiu, that is available at github: SevenBlocks is a digital clock resembling a classic red on black alarm clock, featuring a mechanic seven segment display of solid blocks moving into the viewers space. Via Hacked Gadgets. Check out the video after the break.

DIY clock based on 4000-series logic ICs

Terry built a LED bar display clock using only logic ICs: Although I’m way too late for the 7400 contest, I had built a chips-only digital clock from 4000-series IC’s The time was displayed by columns of LEDs i.e. first columnt was 1-12, and the led for that hour would be lit. The next column […]