Hi all, I searched in old posts but nobody seems to have solved the problem. I just bought a DS1307 + AT24C32 module (like this ) from eBay. I am able to write\read DateTime data to the module, and I can read the time updates via serial. The problem is that when i disconnect the usb from the ardui…

DS1307 + AT24C32 not keeping time when on battery

Daedalus1632 August 20, 2013, 8:25pm 11

I looked for a DS3231 on eBay, but it seems to cost the double or even more, so what's the difference? More precision and nv memory?

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