Real Time Clock in FreeBSD on Raspberry Pi

The Raspberry Pi doesn’t have any ‘Real Time Clock’ (RTC) module, which keeps actual time.

This is not a problem when we connect our system to the Internet.
We can setup NTP (network time protocol) for updating the time from the global ntp servers.
But for stand-alone systems we need to use external RTC module.

I decide to use DS1307 Real Time Clock breakout board kit from the Adafruit.
It is compact and inexpensive.
Adafruit provides good tutorial how to use this kit with Raspberry Pi with Raspbian.

Here is instruction how to use it with FreeBSD on Raspberry Pi.

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