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.

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. ..

We have featured quite a few cool clocks here at Geeky Gadgets, and the latest one is the work of Andrew O’Malley, the DOTKLOK, which is an open-source Arduino digital clock. The DOTKLOK comes ...

Sick of telling time the old way? Spice up your time-telling time with the open-source, hackable and Arduino-based DOTKLOK. Basically, you can get a bunch of different ways to tell time.

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. The clock can be made ...

but if you're looking for a clock that turns heads, looks cool, and is a great starter project if you're interested in tinkering with an Arduino, this laser wall clock definitely fits the bill.

But [Playful Technology] wanted to control the hands with an Arduino directly and, in the process, he shows us how these modules work. If you’ve never studied the inside of these clock modules ...