You’ve doubtless seen those ubiquitous clock modules, especially when setting clocks for daylight savings time. You know the ones: a single AA battery, a wheel to set the time, and two or thr… ...

The build relies on that old stalwart, the Arduino Uno, to run the show. It’s hooked up to a DS3231 real-time clock module so it can keep accurate time for long periods, as is befitting a clock.

We have feature quite a few cool clocks here at Geeky Gadgets, the latest one is the work of Andrew O'Malley, the DOTKLOK, which is an open source Arduino digital clock.

Instead, it transpired that this TM1637 module had huge (10nF) capacitors between 0V and the incoming clock and data, causing super-sluggish signal rise times (~100μs). Credit for this discovery goes ...

DOTKLOK Is A Hackable, Open-Source, Arduino Clock. Also Neat Looking. Contributor. 2:24 PM PST · February 23, 2011. Sick of telling time the old way?

TM1637 data transfer carries with answering signal ACK. For a right data transfer, an answering signal ACK is generated inside the chip to lower the DIO pin at the failing edge of the eighth clock. ..

Build Your Own Arduino-Based Laser Clock with a Salad Bowl, Laser Pointers, and Some Spare Time. Alan Henry. March 5, 2012 ...

Some of our readers will remember the Qlocktwo clock, that display the time in words rather than numbers, now you can make your own DIY version using the power of Arduino.