Universal control is a neat feature on Macintosh computers, allowing you to slide your mouse seamlessly from device to device. Of course you need a relatively recent version of MacOS to make it work, ...

You can buy all kinds of conventional clocks that have hands and numbers for easy reading. Or, like [Fabio Ricci], you could build yourself something a little more esoteric, like this neat shadow ...

The last two supports WS2812 RGB and SK6812 RGBW LEDs. The software of all clocks supports a Bluetooth connection to control the clock and as backup a rotary encoder, an accurate DS3231 RTC and a LDR ...

Project goal: Create a super-accurate (<1ms drift per year) standalone 7-segment LED clock whose time stays accurate and "sets itself" without access to the Internet or a host computer (i.e., without ...