These were chunky dual-in-line devices containing clock and non-volatile RAM chips, a crystal, and a lithium battery. The battery was good for about a decade, which was fine for most PCs of the ...

Let me introduce you to SPINC, an attractive Raspberry Pi Pico-driven retro style desk clock that is also an automatically-fed NiH battery charger. There are several ways to program a Raspberry Pi ...

Automatically adjusts to Daylight Savings Time while set the DST on. Atomic Wall Clocks Battery Operated with Alarm - This digital calendar alarm day clock required 3 “AA” long life batteries ...