Adding an RTC

  • Brendan Horan


When I first looked at the Raspberry Pi there was one missing piece of hardware that stood out to me. This little piece of hardware has been on pretty much every system you may have used, especially in recent years. What exactly is this missing piece of hardware? It’s the real-time clock, or RTC for short. In most modern computer systems you would be hard-pressed not to find the RTC with a quick glance. What you would notice is that little silver coin — shaped battery. Why would the RTC chip need a battery? The main function of the RTC is to keep the current time and date, which has been set into the RTC chip.


Kernel Module Crystal Oscillator Silver Coin Boot Stage Device Node 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Brendan Horan 2013

Authors and Affiliations

  • Brendan Horan

There are no affiliations available

Personalised recommendations