This tutorial explains how to make use of the DS1302 real-time clock IC on the BS2, while providing both demo code and a template to create your own programs.
(https://savagecircuits.com/wp-content/uploads/2001/05/ds1302demo_00.jpg)
CLICK HERE TO GO TO THIS TUTORIAL ON THE SAVAGE///CIRCUITS WEBSITE (https://savagecircuits.com/ds1302-demo-code-bs2/)