You must, first of all, upload the "TimeRTCSet.pde" example of the Time library (obviously to set the time on DS1307 RTC), then you can upload my sketch. Check connections between Arduino and LCD, ...

You must, first of all, upload the "TimeRTCSet.pde" example of the Time library (obviously to set the time on DS1307 RTC), then you can upload my sketch. Check connections between Arduino and LCD, ...

This Arduino based Real time clock is a digital clock to display real time using a RTC IC DS1307 which works on I2C protocol. Real time clock means it runs even after power failure. When power is ...

The most popular RTC for the Arduino is the DS1307. However, it does have some drawbacks, the most notable of which is that its operating voltage is 5v, which means it cannot be used with 3.3v ...