The STEVAL-IFS012V1 is a multi device temperature sensor demonstration motherboard which supports the demonstration of four RTCs; M41T81S RTC mounted on motherboard, M41T82 (SO-8 package) mounted on separate STEVAL-IFR001V1 daughter card, M41T83(QFN package) mounted on separate STEVAL- IFR002V1 daughter card, and M41T83(SOX18 package) mounted on separate STEVAL- IFR003V1 daughter card. RTC mode of the GUI is chosen through the RTC selection icon on the GUI.