RTC I2C DS1307 AT24C32 Echtzeit-Uhr-Modul für Arduino AVR PIC 51 ARM WINZIG UK
DS1307 with battery backup can not solve the problem of literacy. DS1307 RTC chip 2 Wire I2C protocol. 1X DS1307 module (Battery not Included). Hour: Minute: Seconds AM/PM. 1Hz output pin.