I am currently working on an electronics project of building my own Digital wall clock. For that I tried making a RTC module with DS1307 IC.
I followed the following instruction from this website.
But when I tried to read and write the time to the IC using the serial monitor on Arduino software I got the following result.
My inputs were as follows:
first i/p : T000021240114
second i/p: R
Can someone help me find my mistake.