Press it again and the display goes back to clock mode, although judging by the code, doing this will cancel the timer. Inside the juicy enclosure is an Arduino Nano, an RTC, and a 7-segment display.

Indeed, if you ask Google to " set a timer," you'll now see one start counting down from 5 minutes. You can also put down other amounts of time or set it for a time of day like 3:15 p.m. And yes ...