Raspberry Pi – PiFace real-time-clock with better battery

If you are using a Raspberry Pi and if you need the keep the time even if there’s a loss of power and if you have no other means of getting the actual time (through the network maybe) then you need a real-time-clock.

RTCs need a battery . The batteries live long (2 years or so) but when they die, they typically die at an awkward time (ha!).

„Raspberry Pi – PiFace real-time-clock with better battery“ weiterlesen