Hello I am new to Atmel I am trying to make a data collecting device and send data over GPRS but problem is I need to integrate real time clock calender in the device to gather information when the data is collected?
There are two options1.Use Atmega128 timer/clock 2.Use separate chip with clock calender
But i need to have separate battery powered system to keep the time up to date
so what is the most soot-able way to keep accurate clock without any error and low power consumption from above two?
Please reply with at least short answer if you know any! Thanks!