DS1302 RTC Board
From Waveshare Wiki
[中文]
Resources
<htmltag tagname="a" href="http://www.waveshare.com/product/DS1302-RTC-Board.htm" target="_blank" title="Introduction"> <htmltag tagname="img" alt="DS1302-RTC-Board" src="http://www.waveshare.com/img/preview/DS1302-RTC-Board_L.jpg" width="300" height="225" class="thumbimage"> </htmltag>
FAQ
Why may the DS1302 RTC Board output inaccurate time after used for a period of time?
The DS1302 module takes the divided clock from the external oscillator as its clock. However, the oscillator frequency changes with the ambient temperature and the frequency error of the external oscillator may cause clock error.
Support
Support
If you require technical support, please go to the Support page and open a ticket.